KEMPER ADJUSTABLE RATE U S GOVERNMENT FUND
N-30D, 1999-05-07
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<PAGE>   1
 
                                                            SEMIANNUAL REPORT TO
                                                     SHAREHOLDERS FOR THE PERIOD
                                                         ENDED FEBRUARY 28, 1999
 
LONG-TERM INVESTING IN A SHORT-TERM WORLD(SM)

SEEKS HIGH CURRENT INCOME AND PRESERVATION OF CAPITAL.

KEMPER SHORT-TERM
U.S. GOVERNMENT FUND
 
                    "... In short, the shareholders approved
                    a structure that should help us maximize
                         the fund's potential benefits. ..."


                                                             [KEMPER FUNDS LOGO]
 
                                   
<PAGE>   2

CONTENTS
3 
ECONOMIC OVERVIEW 
5
PERFORMANCE UPDATE
7
PORTFOLIO STATISTICS
8
SHAREHOLDERS' MEETING
9
PORTFOLIO OF INVESTMENTS
11
FINANCIAL STATEMENTS
13
NOTES TO FINANCIAL STATEMENTS
17
FINANCIAL HIGHLIGHTS

- --------------------------------------------------------------------------------
AT A GLANCE
- --------------------------------------------------------------------------------
KEMPER SHORT-TERM U.S. GOVERNMENT
FUND TOTAL RETURNS
- --------------------------------------------------------------------------------
FOR THE SIX-MONTH PERIOD ENDED FEBRUARY 28, 1999 
(UNADJUSTED FOR ANY SALES CHARGE)

                                  [BAR GRAPH]
- --------------------------------------------------------------------------------
<TABLE>
<S>                                                     <C>
CLASS A                                                 1.23
CLASS B                                                 0.87
CLASS C                                                 0.92
LIPPER SHORT-TERM GOVERNMENT FUND CATEGORY AVERAGE*     1.68
- --------------------------------------------------------------------------------
</TABLE>

Returns and rankings are historical and do not guarantee future results.
investment returns and principal values will fluctuate so that shares, when
redeemed, may be worth more or less than original cost.

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
NET ASSET VALUE
- --------------------------------------------------------------------------------
                                                        AS OF     AS OF
                                                       2/28/99   8/31/98
- --------------------------------------------------------------------------------
<S>                                                    <C>       <C>
KEMPER SHORT-TERM U.S. GOVERNMENT FUND CLASS A          $8.11     $8.19
- --------------------------------------------------------------------------------
KEMPER SHORT-TERM U.S. GOVERNMENT FUND CLASS B          $8.13     $8.21
- --------------------------------------------------------------------------------
KEMPER SHORT-TERM U.S. GOVERNMENT FUND CLASS C          $8.14     $8.22
- --------------------------------------------------------------------------------
</TABLE>

- --------------------------------------------------------------------------------
KEMPER SHORT-TERM U.S. GOVERNMENT
FUND RANKINGS AS OF 2/28/99*
- --------------------------------------------------------------------------------
COMPARED TO ALL OTHER FUNDS IN THE LIPPER SHORT-TERM GOVERNMENT FUNDS CATEGORY
 
<TABLE>
<CAPTION>
                 CLASS A              CLASS B               CLASS C
- --------------------------------------------------------------------------------
<S>           <C>                  <C>                  <C>
1-YEAR        #26 of 28 funds      #28 of 28 funds      #28 of 30 funds
- --------------------------------------------------------------------------------
5-YEAR        #20 of 21 funds             N/A                 N/A
- --------------------------------------------------------------------------------
10-YEAR       #2 of 3 funds               N/A                 N/A
- --------------------------------------------------------------------------------
</TABLE>
 
* Lipper Analytical Services, Inc. returns and rankings are based upon changes 
  in net asset value with all dividends reinvested and do not include the effect
  of sales charges and, if they had, results may have been less favorable.

- --------------------------------------------------------------------------------
DIVIDEND REVIEW
- --------------------------------------------------------------------------------

THE FOLLOWING TABLE SHOWS PER SHARE DIVIDEND AND YIELD INFORMATION FOR THE FUND
AS OF FEBRUARY 28, 1999.
 
<TABLE>
<CAPTION>
                                         CLASS A   CLASS B   CLASS C
- --------------------------------------------------------------------------------
<S>                                       <C>       <C>       <C>
SIX-MONTHS INCOME:                        $.1800    $.1513    $.1554
- --------------------------------------------------------------------------------
FEBRUARY DIVIDEND:                        $.0300    $.0232    $.0250
- --------------------------------------------------------------------------------
ANNUALIZED DISTRIBUTION RATE+:            4.44%     3.42%     3.69%
- --------------------------------------------------------------------------------
SEC YIELD+:                               4.30%     3.43%     3.66%
- --------------------------------------------------------------------------------
</TABLE>
 
+ Current annualized distribution rate is the latest monthly dividend shown as 
  an annualized percentage of net asset value on February 28, 1999. Distribution
  rate simply measures the level of dividends and is not a complete measure of
  performance. the SEC yield is net investment income per share earned over the
  month ended February 28, 1999, shown as an annualized percentage of the
  maximum offering price on that date. the SEC yield is computed in accordance
  with a standardized method prescribed by the Securities and Exchange
  Commission. Yields and distribution rates are historical and will fluctuate.

- --------------------------------------------------------------------------------
TERMS TO KNOW
- --------------------------------------------------------------------------------
 
ADJUSTABLE RATE MORTGAGES (ARMS) Mortgages whose interest rates adjust
periodically based on changes to a corresponding index rate. To help protect the
borrower against dramatic rate increases in a short period of time, ARMs are
often originated with interest rate caps. An interest rate cap assures the
borrower that the rate will not adjust beyond a certain point within a specific
period.
 
DURATION A measure of the interest rate sensitivity of a fixed-income investment
or portfolio. The longer the duration, the greater a portfolio's sensitivity to
changes in interest rates.
 
YIELD A fund's yield is a measure of the net investment income per share earned
over a specific one-month or 30-day period expressed as a percentage of the
maximum offering price of the fund shares at the end of the period.



 
<PAGE>   3
- --------------------------------------------------------------------------------
ECONOMIC OVERVIEW 
- --------------------------------------------------------------------------------

[SILVIA PHOTO]

DR. JOHN E. SILVIA IS A MANAGING DIRECTOR OF SCUDDER KEMPER INVESTMENTS, INC.
HIS PRIMARY RESPONSIBILITIES INCLUDE ANALYSIS, MODELING AND FORECASTING OF
ECONOMIC DEVELOPMENTS AND FEDERAL RESERVE ACTIVITY THAT AFFECT FINANCIAL
MARKETS, ESPECIALLY INTEREST RATE TRENDS. THIS EFFORT INCLUDES CLOSE
COLLABORATION WITH BOTH INCOME AND EQUITY MUTUAL FUND MANAGERS AND PENSION FUND
MANAGERS.

SILVIA HOLDS A BACHELOR'S DEGREE AND PH.D. IN ECONOMICS FROM NORTHEASTERN
UNIVERSITY IN BOSTON AND A MASTER'S DEGREE IN ECONOMICS FROM BROWN UNIVERSITY IN
PROVIDENCE, R.I. PRIOR TO HIS CAREER AT SCUDDER KEMPER INVESTMENTS, HE WAS WITH
THE HARRIS BANK AND ALSO TAUGHT AT INDIANA UNIVERSITY.
 
SCUDDER KEMPER INVESTMENTS, THE INVESTMENT MANAGER FOR KEMPER FUNDS, IS ONE OF
THE LARGEST AND MOST EXPERIENCED INVESTMENT MANAGEMENT ORGANIZATIONS IN THE
WORLD, MANAGING MORE THAN $280 BILLION IN ASSETS FOR INSTITUTIONAL AND CORPORATE
CLIENTS, RETIREMENT AND PENSION PLANS, INSURANCE COMPANIES, MUTUAL FUND
INVESTORS AND INDIVIDUALS. SCUDDER KEMPER INVESTMENTS OFFERS A FULL RANGE OF
INVESTMENT COUNSEL AND ASSET MANAGEMENT CAPABILITIES BASED ON A COMBINATION OF
PROPRIETARY RESEARCH AND DISCIPLINED, LONG-TERM INVESTMENT STRATEGIES.

DEAR KEMPER FUNDS SHAREHOLDER:
 
If you think the first quarter of 1999 has seemed rather anticlimactic compared
to 1998, you're not alone. The year began with a quiet bang in the U.S. stock
market, with the Dow Jones Industrial Average hitting an all-time high. While
stock market volatility has continued, it seems to be phasing investors less and
less. Even global events are being taken in stride. Europe's Economic and
Monetary Union (EMU) was launched without much notice. And when Brazil's economy
recently took a turn for the worse, Wall Street was only mildly concerned. Also
contributing to today's laid-back attitude -- the impeachment trial of President
Clinton has all but fizzled into obscurity without significantly affecting the
U.S. economy or markets.
 
  Indeed, the U.S. economy looks good. The fundamentals by which we measure the
state of the economy remain strong. We continue to see solid consumer spending
growth, continued investment spending and low inflation. This suggests that
there are no internal problems for continued U.S. economic growth.
 
  Additionally, we can expect the Federal Reserve Board to keep short-term
interest rates steady. At both the February 3 and March 30 meetings, the Fed
left interest rates unchanged. It is likely that this "hands-off" approach will
continue at the Fed's May 18 meeting, particularly if U.S. inflation remains in
check and there is a degree of slowdown in the U.S. economy. Caution is
warranted here, though, if growth continues far above the Fed's view of
noninflationary growth. In that case, the Fed could adopt a bias to tighten.
 
  The U.S. budget surplus for 1998 came in at $60 billion, with another budget
surplus of between $95 billion and $105 billion expected for fiscal 1999. Growth
in the nation's gross domestic product (GDP), which represents the total value
of all goods and services produced within the U.S. economy, has remained steady.
GDP, driven by consumer spending, is expected to grow at an annualized rate of
approximately 3 to 3.5 percent in 1999. We also anticipate modest capital
spending and inventory growth.
 
  The consumer price index (CPI) remains in the vicinity of 2 percent. However,
energy prices, which were down 6 to 7 percent last year and helped keep the CPI
down, are unlikely to remain so low this year. For 1999, inflation should
register at 2 to 2.5 percent.
 
  Employment growth has slowed to 2 percent, but combined with real wage growth
of between 2 percent and 2.5 percent, produces real income growth between 4
percent and 5 percent. In addition, gains in household net worth, which tends to
fuel consumer spending, are on the rise. Banks appear to be only a little less
willing to lend in 1999, so the threat of a general credit crunch is minimal. As
a result of all these factors, consumer spending should continue to grow this
year.
 
  On a less positive note, two factors need to be watched. First, corporate
profits have slowed in 1999, growing at a rate of 1 percent to 3 percent on a
year-over-year basis. As a result, we may see a slowdown in capital spending
this year. Second, the current U.S. account deficit is rising, which suggests
the U.S. economy is increasingly dependent on foreign capital inflows to finance
its economic activity. This is acceptable as long as foreign money continues to
flow in. But if foreign investors, particularly the Japanese, no longer wish to
invest in the United States, we can expect pressure on interest rates and the
dollar, as well as increased uncertainty and market volatility.
 
  Given the events of the last two years, investors may be comforted by the fact
that the U.S. markets and economy have withstood the test of tumultuous times.
While certain countries, such as Malaysia, Indonesia, Brazil and Russia, are
still suffering from economic crises, others, including the Philippines, South
Korea, Thailand and China, continue to recover and grow. As long as the Fed and
the Group of Eight leading industrial nations (G8) are committed to avoiding
recession on national and global levels respectively, investors have a good
chance of experiencing a more stable economic environment.
 
  At home, there has been somewhat of a slowdown in manufacturing, as reduced
U.S. exports reflect foreign economic turmoil. But the global impact of the
Asian crisis still has not hit the U.S. as hard as some analysts expected.
Indeed, Asian turmoil has not affected U.S. export
                                                                               3
<PAGE>   4
- --------------------------------------------------------------------------------
ECONOMIC OVERVIEW
- --------------------------------------------------------------------------------
 
- --------------------------------------------------------------------------------
ECONOMIC GUIDEPOSTS
- --------------------------------------------------------------------------------

ECONOMIC ACTIVITY IS A KEY INFLUENCE ON INVESTMENT PERFORMANCE AND SHAREHOLDER
DECISION-MAKING. PERIODS OF RECESSION OR BOOM, INFLATION OR DEFLATION, CREDIT
EXPANSION OR CREDIT CRUNCH HAVE A SIGNIFICANT IMPACT ON MUTUAL FUND PERFORMANCE.

       THE FOLLOWING ARE SOME SIGNIFICANT ECONOMIC GUIDEPOSTS AND THEIR
INVESTMENT RATIONALE THAT MAY HELP YOUR INVESTMENT DECISION-MAKING. THE 10-YEAR
TREASURY RATE AND THE PRIME RATE ARE PREVAILING INTEREST RATES. THE OTHER DATA
REPORT YEAR-TO-YEAR PERCENTAGE CHANGES.

<TABLE>
<CAPTION>
                                           NOW( 3/31/99)           6 MONTHS AGO            1 YEAR AGO            2 YEARS AGO
                                           -------------           ------------            ----------            -----------
<S>                                     <C>                    <C>                    <C>                    <C>
Ten Year Treasury Rate                          5.23                   4.81                   5.65                   6.69
Prime Rate                                      7.75                   8.49                   8.50                   8.30
Inflation*                                      1.79                   1.43                   1.38                   2.76
The U.S. Dollar*                               -0.54                   4.31                   4.88                   8.58
Capital goods orders*                           2.35                  11.44                   8.10                   5.52
Industrial production *                         1.88                   3.56                   5.05                   5.86
Employment growth*                              2.21                   2.50                   2.57                   2.52
</TABLE>

(1) Falling interest rates in recent years have been a big plus for financial 
    assets.

(2) The interest rate that commercial lenders charge their best borrowers.

(3) Inflation reduces an investor's real return. in the last five
    years, inflation has been as high as 6 percent. The low, moderate inflation
    of the last few years has meant high real returns. 

(4) Changes in the exchange value of the dollar impact u.s. exporters and the 
    value of U.S. firms' foreign profits. 

(5) These influence corporate profits and equity performance. 

(6) An influence on family income and retail sales. 

*Data as of February 28, 1999.
 
Source: Economics Department, Scudder Kemper Investments, Inc.
 
volumes as much as it has lowered import prices and helped reduce global
interest rates.
 
  Ultimately, Europe's recently inaugurated EMU is likely to bring more
flexibility and growth potential for the region. European equities may be the
beneficiaries of increased spending, as governments seek to ease fiscal and
monetary policy, foster growth and reduce unemployment. It's going to be
interesting to watch as the monetary union continues to evolve. One lesson for
investors -- particularly those with international holdings -- is to diversify.
With the democratization of the world, the globalization of trade and more free
market economies at our fingertips, international markets are becoming more and
more attractive. But if you subscribe to the concept of international
investment, be cautious -- don't put all of your investment eggs in one basket
(i.e. country or region).
 
  Other key elements to watch in 1999: the race for the next presidency and
information technology preparedness for the year 2000. And remember, while it is
nearly impossible to predict the next big crisis, preparedness through
diversification and risk control are key.
 
  Thank you for choosing to invest with Kemper Funds. We appreciate the
opportunity to serve your investment needs.
 
Sincerely,
 
/s/ JOHN E. SILVIA

JOHN E. SILVIA
 
The information contained in this piece has been taken from sources believed to
be reliable, but the accuracy of the information is not guaranteed. The opinions
and forecasts expressed are those of Dr. John Silvia as of April 5, 1999, and
may not actually come to pass. This information is subject to change. No part of
this material is intended as an investment recommendation.
 
                                                               
 4
<PAGE>   5
- --------------------------------------------------------------------------------
PERFORMANCE UPDATE
- --------------------------------------------------------------------------------
 
[VANDENBERG PHOTO]

RICHARD VANDENBERG JOINED SCUDDER KEMPER INVESTMENTS, INC. IN MARCH 1996 AND IS
A MANAGING DIRECTOR. HE IS ALSO LEAD PORTFOLIO MANAGER OF KEMPER SHORT-TERM U.S.
GOVERNMENT FUND. VANDENBERG HAS 25 YEARS OF FIXED-INCOME PORTFOLIO MANAGEMENT
EXPERIENCE. HE RECEIVED A BACHELOR'S DEGREE AND M.B.A. FROM THE UNIVERSITY OF
WISCONSIN.

[DUGENSKE PHOTO]

JOHN DUGENSKE IS A VICE PRESIDENT OF SCUDDER KEMPER INVESTMENTS, JOINING THE
FIRM IN 1998. HE IS ALSO A PORTFOLIO MANAGER FOR KEMPER SHORT-TERM U.S.
GOVERNMENT FUND, HE EARNED HIS BACHELOR'S AND MASTER'S DEGREES IN MECHANICAL
ENGINEERING AND HIS M.B.A. FROM THE UNIVERSITY OF ILLINOIS.

[DOLAN PHOTO]

SCOTT DOLAN JOINED SCUDDER KEMPER INVESTMENTS IN 1989 AND IS A VICE PRESIDENT.
HE IS ALSO A PORTFOLIO MANAGER FOR KEMPER SHORT-TERM U.S. GOVERNMENT FUND. HE
RECEIVED A BACHELOR'S DEGREE IN BUSINESS ADMINISTRATION MAJORING IN FINANCE FROM
NORTHEASTERN UNIVERSITY AND AN MS DEGREE IN FINANCE FROM BOSTON COLLEGE.

THE VIEWS EXPRESSED IN THIS REPORT REFLECT THOSE OF THE PORTFOLIO MANAGEMENT
TEAM ONLY THROUGH THE END OF THE PERIOD OF THE REPORT, AS STATED ON THE COVER.
THE MANAGERS' VIEWS ARE SUBJECT TO CHANGE AT ANY TIME, BASED ON MARKET AND OTHER
CONDITIONS.

ON DECEMBER 17, 1998, SHAREHOLDERS OF KEMPER ADJUSTABLE RATE U.S. GOVERNMENT
FUND APPROVED A NEW INVESTMENT OBJECTIVE AND NEW POLICIES FOR THE FUND. ON
JANUARY 15, 1999, SHAREHOLDERS OF KEMPER SHORT-INTERMEDIATE GOVERNMENT FUND
APPROVED A REORGANIZATION WHEREBY KEMPER ADJUSTABLE RATE U.S. GOVERNMENT FUND
AND KEMPER SHORT-INTERMEDIATE GOVERNMENT FUND WERE EFFECTIVELY MERGED. THE
RESULTING COMBINED FUND, KEMPER SHORT-TERM U.S. GOVERNMENT FUND, WILL PURSUE
HIGH CURRENT INCOME AND PRESERVATION OF CAPITAL. THE REORGANIZATION OCCURRED ON
FEBRUARY 5, 1999. WE EXPECT THE COMBINED FUND TO PROVIDE AN ATTRACTIVE TRADE-OFF
BETWEEN RISK AND RETURN FOR CONSERVATIVE INVESTORS, AND THAT THE FUND WILL
PURSUE ITS OBJECTIVE WITH POTENTIALLY LOWER EXPENSES BY VIRTUE OF ITS INCREASED
ASSET SIZE. BELOW THE FUND'S MANAGERS DISCUSS THEIR STRATEGIES FOR MANAGING THE
COMBINED FUND, AND THEIR OUTLOOK FOR THE COMING MONTHS.
 
Q      NORMALLY, WE'D START OUR QUESTION-AND-ANSWER SESSION WITH A WORD ABOUT 
THE FUND'S PERFORMANCE. BUT SINCE THE FUND WAS REORGANIZED NEAR THE END OF THE
REPORTING PERIOD, IT'S A BIT PREMATURE TO TALK ABOUT RETURNS VERSUS ITS PEERS.
INSTEAD, COULD YOU RECAP HOW AND WHY THE TWO FUNDS, WHICH THIS TEAM ALSO
MANAGED, WERE REORGANIZED INTO KEMPER SHORT-TERM U.S. GOVERNMENT FUND?
 
A      Certainly. We'll start with the Short-Intermediate Government Fund.
Despite a reasonably good record of investment performance, the fund was unable
to garner sufficient assets to operate efficiently. This was largely due to the
fact that shorter-term and longer-term securities have offered a better
trade-off between risk and return than intermediate-term securities over the
past few years. So there wasn't an overwhelming amount of investor interest in
the fund.
 
       Also, because of its modest asset size, the fund's relatively small 
number of investors were required to shoulder the costs associated with
maintaining a mutual fund, including management fees, the expense of producing
shareholder reports, the cost of record-keeping and providing statements, etc.
 
       In the case of Kemper Adjustable Rate U.S. Government Fund, changes were
needed because adjustable rate mortgages (ARMs) are not attractive investments
at the present time. Currently, they are experiencing a "no-win" situation: no
supply, no demand. As interest rates have declined over the last few years, ARM
owners have tended to refinance their ARMs into fixed-rate mortgages to lock in
an attractive low rate. Therefore, the pool of ARMs in which the fund could
invest was shrinking. In addition, as assets came into the fund when its ARMs
were paid ahead of schedule, there were very few attractively priced ARMs
available in which to reinvest the proceeds.
 
       Therefore, the Boards of the funds recommended a two-step plan to help 
resolve these issues: 1) combine the funds to provide the "critical mass" of
assets necessary to operate efficiently, and 2) adopt in
 

                                                                               5
<PAGE>   6
- --------------------------------------------------------------------------------
PERFORMANCE UPDATE
- --------------------------------------------------------------------------------

the merged fund a wider range of investment options and an average maturity
range of 1-3 years, which may enhance the fund's potential to perform well in
volatile markets.
 
       The goal was to create a fund that will pursue high income with low 
volatility of principal, will have broader diversification and because of its 
increased size, have the opportunity to operate at a lower cost.
 
Q      HOW DO YOU PLAN TO RUN THE COMBINED FUND?
 
A      The fund will typically have a duration of about 1.5 years, which 
provides much of the yield of longer-maturity instruments, but with
substantially less potential risk. We also plan to make the most of the fund's
flexibility. We can look for opportunities with a variety of mortgage-backed
securities, asset-backed securities and U.S. Treasuries. Wherever we believe
the trade-off of risk and return is most attractive, we have the ability to
invest and get the potentially best possible balance for our shareholders.
 
       For example, we had a slightly heavier bias towards mortgages than U.S.
Treasuries earlier in the year, but mortgages have rallied to the point where we
feel we've squeezed most of the value from them. So we're looking for attractive
possibilities in the short end of the U.S. Treasury market. In addition, we
believe the changes approved by the fund's shareholders will enable us to make
the most of our management style.
 
Q      IN WHAT WAY?
 
A      Our approach at Scudder Kemper Investments is to monitor the economy and
the markets carefully and take very measured risks, evaluating every security in
terms of its risk/reward potential. This close attention to detail and our
ability to eke out incremental value even in tight markets is where we believe
we can add the most value. We have a lot of experience managing assets using
this approach, and the fund's flexibility now gives us more ways to make our
management style benefit investors.
 
       Another advantage is that, compared to the former ARM fund, the merged 
fund's benchmark will be much more clearly defined. Adjustable rate funds vary
widely in terms of their ARM requirements and their ability to invest in other
types of securities. Therefore, it was difficult in the past to compare our
performance to our peer group and assess how well we were doing. It will be much
easier to measure Kemper Short-Term U.S. Government Fund's performance versus
its peers. And we'll be able to establish a far more accurate benchmark against
which we can monitor the fund's results and adjust the portfolio to improve
those results. For example, the fund's Lipper category should change from the
ARM category to the Short-Term Government Fund category. These funds are far
more similar to each other than ARM funds.
 
       In short, the shareholders approved a structure that should help us 
maximize the fund's potential benefits. We're confident that they will be very
pleased with their decision to support the proposal to change the name of the
fund, investment objectives and fund policies.
 
Q      WHAT'S YOUR OUTLOOK FOR THE SHORT-TERM GOVERNMENT MARKET?
 
A      Over the last six months, the government bond market has experienced a
shift from a preoccupation with events overseas to closer attention to the
economy at home. There has been a lot of price volatility associated with this
change in focus, even at the usually docile short end of the market. We believe
volatility will continue to trouble the market as investors wrestle with the
tension between a weak global economy and a strong U.S. economy. Inflation,
however, remains subdued and commodity prices for the most part remain
historically low. So while bond prices and yields may continue to bounce around,
we think they'll do so within a broad range and that no fundamental change in
the interest rate environment is likely. Again, the fund's flexibility enhances
our ability to use market turbulence to our advantage. If certain securities
begin to look very rich or very cheap in light of investor overreaction, we now
have greater opportunity to make such anomalies benefit our shareholders.
 
                                                              
 
 6
<PAGE>   7
- --------------------------------------------------------------------------------
PORTFOLIO STATISTICS 
- --------------------------------------------------------------------------------

PORTFOLIO COMPOSITION*
 
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                                    ON 2/28/99              ON 8/31/98
- --------------------------------------------------------------------------------
<S>                                   <C>                      <C>
FIXED RATE AGENCY SECURITIES           38%                     11%
- --------------------------------------------------------------------------------
GOVERNMENT BONDS:
- --------------------------------------------------------------------------------
  SHORT-TERM                           29                       1
- --------------------------------------------------------------------------------
  INTERMEDIATE-TERM                    14                       5
- --------------------------------------------------------------------------------
CASH EQUIVALENTS                       11                      10
- --------------------------------------------------------------------------------
CORPORATES                              8                       3
- --------------------------------------------------------------------------------
GOVERNMENT AGENCIES ARMS               --                      70
================================================================================
                                      100%                    100%
</TABLE>
 
[PIE CHART]        [PIE CHART]               - Fixed rate agency securities
 ON 2/28/99         ON 8/31/98                 Government bonds
                                               - Short-term
                                               - intermediate-term
                                             - Cash equivalents
                                             - Corporates
                                             - Government agencies ARMs

- --------------------------------------------------------------------------------

AVERAGE MATURITY
 
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                                  ON 2/28/99              ON 8/31/98
- --------------------------------------------------------------------------------
<S>                               <C>                     <C>
AVERAGE MATURITY                   3.4 years               2.9 years
================================================================================
</TABLE>
 
*Portfolio composition and holdings are subject to change.
 

 
                                                                               7
<PAGE>   8
- --------------------------------------------------------------------------------
SHAREHOLDERS' MEETING
- --------------------------------------------------------------------------------
 
SPECIAL SHAREHOLDERS' MEETING
 
On December 17, 1998, a special shareholders' meeting was held and adjourned to
January 15, 1999. Kemper Short-Term U.S. Government Fund shareholders were asked
to vote on two separate issues: approval of the new Investment Management
Agreement between the fund and Scudder Kemper Investments, Inc., and to modify
or eliminate certain policies and to eliminate the shareholder approval
requirements as to certain other matters. The following are the results.
 
1) Approval of the new Investment Management   Underwriting of securities
   Agreement between the fund and Scudder
   Kemper Investments, Inc. This item was           For        Against   Abstain
   approved.
                                                    3,632,503  315,320   533,973
      For         Against   Abstain
                                               Investment in real estate
      5,112,330   194,546   443,067
                                                    For        Against   Abstain
2) To modify or eliminate certain policies 
   and to eliminate the shareholder approval        3,625,201  322,623   533,973
   requirements as to certain other matters.
   These items were approved.                  Purchase of commodities

New investment objectives and policies              For        Against   Abstain

      For        Against   Abstain                  3,623,966  323,857   533,973

      3,631,835  315,989   533,973             Lending

Investment policies                                 For        Against   Abstain

      For        Against   Abstain                  3,620,872  326,952   533,973

      3,631,835  315,989   533,973             Margin purchases and short sales

Diversification                                     For        Against   Abstain

      For        Against   Abstain                  3,616,131  331,692   533,973

      3,632,503  315,320   533,973             Pledging of assets

Borrowing                                           For        Against   Abstain

      For        Against   Abstain                  3,620,736  327,088   533,973

      3,626,554  321,269   533,973             Purchases of securities

Senior securities                                   For        Against   Abstain

      For         Against   Abstain                 3,630,495  317,329   533,973

      3,632,503   315,320   533,973            Purchases of options and warrants

Concentration                                       For        Against   Abstain

      For        Against   Abstain                  3,613,927  333,896   533,973
 
      3,632,503  315,320   533,973
                                 
                                                          
 8
<PAGE>   9
 
PORTFOLIO OF INVESTMENTS
 
Kemper Short-term U.S. Government Fund

Portfolio of Investments at February 28, 1999 (unaudited)
(Dollars in Thousands) 
<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------------
                                                                              INTEREST               PRINCIPAL
    U.S. GOVERNMENT OBLIGATIONS                     TYPE                        RATE     MATURITY     AMOUNT      VALUE
- --------------------------------------------------------------------------------------------------------------------------
<S>                                                 <C>                       <C>        <C>         <C>         <C>
    U.S. TREASURY SECURITIES - 42.9%
    (Cost: $108,120)
                                                    Notes                       4.625%     2000       $58,000    $ 57,465
                                                                                5.375      2000        14,200      14,240
                                                                                5.75       2002        18,000      18,276
                                                                                6.625      2007         6,000       6,471
                                                    Bonds                       8.75       2008         9,500      10,754
                                                    ---------------------------------------------------------------------
                                                                                                                  107,206
- -------------------------------------------------------------------------------------------------------------------------
    GOVERNMENT NATIONAL
    MORTGAGE ASSOCIATION - 14.0%
    (Cost: $35,267)
                                                    Adjustable rate
                                                    mortgages(a)                6.625      2022            21          21
                                                    Pass-through
                                                    certificates                7.00     2015-2029     34,276      34,717
                                                                                9.50     2016-2018         22          23
                                                                               11.00       2018           243         264
                                                                                9.00       2019            68          73
                                                                                9.50       2020             8           9
                                                    ---------------------------------------------------------------------
                                                                                                                   35,107
- -------------------------------------------------------------------------------------------------------------------------
    FEDERAL HOME LOAN
    MORTGAGE CORPORATION - 13.7%
    (Cost: $34,451)
                                                    Fixed rate
                                                    collateralized             11.00       2014             6           6
                                                    mortgage obligations        5.962      2020         9,730       9,770
                                                                                6.075      2021        18,636      18,723
                                                                                6.00       2028         5,851       5,862
                                                    ---------------------------------------------------------------------
                                                                                                                   34,361
- -------------------------------------------------------------------------------------------------------------------------
    FEDERAL NATIONAL
    MORTGAGE ASSOCIATION - 10.3%
    (Cost: $26,164)
                                                    Fixed rate
                                                    collateralized              8.50       2005        10,000      10,269
                                                    mortgage obligations        5.50       2008        12,463      12,221
                                                                                6.00       2019         3,200       3,186
                                                    ---------------------------------------------------------------------
                                                                                                                   25,676
                                                    ---------------------------------------------------------------------
                                                    TOTAL U.S. GOVERNMENT OBLIGATIONS--80.9%
                                                    (Cost: $204,002)                                              202,350
                                                    ---------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------------------------
    (b)CORPORATE OBLIGATIONS - 8.2%
    (Cost: $20,609)
                                                    American Express Credit
                                                      Account Master Trust      6.40       2005         4,920       5,017
                                                    Capital Auto Receivables
                                                      Asset Trust               5.58       2002         9,000       8,993
                                                    Chase Manhattan Auto
                                                      Owner Trust               5.80       2003         6,500       6,527
                                                    ---------------------------------------------------------------------
                                                                                                                   20,537
- -------------------------------------------------------------------------------------------------------------------------
    MONEY MARKET
    INSTRUMENTS - 10.9%
    (Cost: $27,138)
                                                    Yield--4.72% to 4.75%
                                                    Due--March 1999
                                                    Federal Home Loan Bank                              7,000       6,988
                                                    Federal Home Loan Mortgage Corp.                    7,000       6,978
                                                    Federal National Mortgage Association              13,200      13,172
                                                    ---------------------------------------------------------------------
                                                                                                                   27,138
                                                    ---------------------------------------------------------------------
                                                    TOTAL INVESTMENT PORTFOLIO--100%
                                                    (Cost: $251,749)                                             $250,025
                                                    ---------------------------------------------------------------------
</TABLE>
 
See accompanying Notes to Portfolio of Investments.
 
                                                                               9
<PAGE>   10
 
PORTFOLIO OF INVESTMENTS

- --------------------------------------------------------------------------------
NOTES TO PORTFOLIO OF INVESTMENTS
- --------------------------------------------------------------------------------
(a) Adjustable rate security. The interest rate on this security varies with
    its selected index at specified intervals and the rate shown above is the
    effective rate on February 28, 1999. The date shown represents the final
    maturity of the obligation.
 
(b) The fund may invest up to 35% of total assets in fixed income securities
    other than U.S. Government Securities.
 
Based on the cost of investments of $251,749,000 for federal income tax purposes
at February 28, 1999, the gross unrealized appreciation was $11,000, the gross
unrealized depreciation was $1,735,000 and the net unrealized depreciation on
investments was $1,724,000.
 
See accompanying Notes to Financial Statements.
 
 10
<PAGE>   11
 
FINANCIAL STATEMENTS
 
STATEMENT OF ASSETS AND LIABILITIES

FEBRUARY 28, 1999 (UNAUDITED)
(IN THOUSANDS)
 
<TABLE>
<S>                                                             <C>
- ------------------------------------------------------------------------
ASSETS
- ------------------------------------------------------------------------
Investments, at value
(Cost: $251,749)                                                $250,025
- ------------------------------------------------------------------------
Cash                                                                 159
- ------------------------------------------------------------------------
Receivable for:
  Fund shares sold                                                 2,098
- ------------------------------------------------------------------------
  Investments sold                                                14,807
- ------------------------------------------------------------------------
  Interest                                                         2,117
- ------------------------------------------------------------------------
    TOTAL ASSETS                                                 269,206
- ------------------------------------------------------------------------

- ------------------------------------------------------------------------
 LIABILITIES AND NET ASSETS
- ------------------------------------------------------------------------

Payable for:
  Fund shares redeemed                                             1,910
- ------------------------------------------------------------------------
  Investments purchased                                           35,453
- ------------------------------------------------------------------------
  Management fee                                                      82
- ------------------------------------------------------------------------
  Distribution services fee                                           39
- ------------------------------------------------------------------------
  Administrative services fee                                         31
- ------------------------------------------------------------------------
  Custodian and transfer agent fees and related expenses             129
- ------------------------------------------------------------------------
  Trustees' fees and other                                           116
- ------------------------------------------------------------------------
    Total liabilities                                             37,760
- ------------------------------------------------------------------------
NET ASSETS                                                      $231,446
- ------------------------------------------------------------------------

- ------------------------------------------------------------------------
 ANALYSIS OF NET ASSETS
- ------------------------------------------------------------------------

Paid-in capital                                                 $243,968
- ------------------------------------------------------------------------
Accumulated net realized loss on investments                     (10,655)
- ------------------------------------------------------------------------
Net unrealized depreciation on investments                        (1,543)
- ------------------------------------------------------------------------
Net investment loss                                                 (324)
- ------------------------------------------------------------------------
NET ASSETS APPLICABLE TO SHARES OUTSTANDING                     $231,446
- ------------------------------------------------------------------------

- ------------------------------------------------------------------------
 THE PRICING OF SHARES
- ------------------------------------------------------------------------

CLASS A SHARES
  Net asset value and redemption price per share ($150,829 /
  18,600 shares outstanding)                                       $8.11
- ------------------------------------------------------------------------
  Maximum offering price per share (net asset value, plus
  2.89% of net asset value or 2.75% of offering price)             $8.34
- ------------------------------------------------------------------------
CLASS B SHARES
  Net asset value and redemption price (subject to
  contingent deferred sales charge) per share ($71,952 /
  8,845 shares outstanding)                                        $8.13
- ------------------------------------------------------------------------
CLASS C SHARES
  Net asset value and redemption price (subject to
  contingent deferred sales charge) per share ($8,665 /
  1,064 shares outstanding)                                        $8.14
- ------------------------------------------------------------------------
</TABLE>
 
See accompanying Notes to Financial Statements.
 
                                                                              11
<PAGE>   12
 
FINANCIAL STATEMENTS
 
STATEMENT OF OPERATIONS

SIX MONTHS ENDED FEBRUARY 28, 1999 (UNAUDITED)
(IN THOUSANDS)
 
<TABLE>
<S>                                                                                            <C>
- ----------------------------------------------------------------------------------------------------------
NET INVESTMENT INCOME
- ----------------------------------------------------------------------------------------------------------
Interest income                                                                                $ 2,374
- ----------------------------------------------------------------------------------------------------------
Expenses:
  Management fee                                                                                   231
- ----------------------------------------------------------------------------------------------------------
  Distribution services fee                                                                         63
- ----------------------------------------------------------------------------------------------------------
  Administrative services fee                                                                       92
- ----------------------------------------------------------------------------------------------------------
  Custodian and transfer agent fees and related expenses                                           153
- ----------------------------------------------------------------------------------------------------------
  Professional fees                                                                                 40
- ----------------------------------------------------------------------------------------------------------
  Reports to shareholders                                                                           45
- ----------------------------------------------------------------------------------------------------------
  Trustees' fees and other                                                                          20
- ----------------------------------------------------------------------------------------------------------
    Total expenses                                                                                 644
- ----------------------------------------------------------------------------------------------------------
NET INVESTMENT INCOME                                                                            1,730
- ----------------------------------------------------------------------------------------------------------

- ----------------------------------------------------------------------------------------------------------
 NET REALIZED AND UNREALIZED LOSS ON INVESTMENTS
- ----------------------------------------------------------------------------------------------------------

  Net realized loss on sales of investments                                                       (743)
- ----------------------------------------------------------------------------------------------------------
  Change in net unrealized depreciation on investments                                          (1,382)
- ----------------------------------------------------------------------------------------------------------
  Change in net unrealized appreciation on future
  transactions                                                                                     181
- ----------------------------------------------------------------------------------------------------------
  Change in net unrealized depreciation                                                         (1,301)
- ----------------------------------------------------------------------------------------------------------
Net loss on investments                                                                         (1,944)
- ----------------------------------------------------------------------------------------------------------
NET DECREASE IN NET ASSETS RESULTING FROM OPERATIONS                                           $  (214)
- ----------------------------------------------------------------------------------------------------------
</TABLE>
 
STATEMENT OF CHANGES IN NET ASSETS
 
(IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                              SIX MONTHS ENDED
                                                              FEBRUARY 28, 1999              YEAR ENDED
                                                                 (UNAUDITED)               AUGUST 31, 1998
- ----------------------------------------------------------------------------------------------------------
OPERATIONS, DIVIDENDS AND CAPITAL SHARE ACTIVITY
- ----------------------------------------------------------------------------------------------------------
<S>                                                           <C>                          <C>
  Net investment income                                           $  1,730                       3,564
- ----------------------------------------------------------------------------------------------------------
  Net realized loss                                                   (743)                       (218)
- ----------------------------------------------------------------------------------------------------------
  Change in net unrealized depreciation                             (1,201)                       (589)
- ----------------------------------------------------------------------------------------------------------
Net increase (decrease) in net assets resulting from
operations                                                            (214)                      2,757
- ----------------------------------------------------------------------------------------------------------
Distribution from net investment income                             (2,054)                     (3,759)
- ----------------------------------------------------------------------------------------------------------
Net increase (decrease) from capital share transactions            164,407                     (11,658)
- ----------------------------------------------------------------------------------------------------------
TOTAL INCREASE (DECREASE) IN NET ASSETS                            162,139                     (12,660)
- ----------------------------------------------------------------------------------------------------------

- ----------------------------------------------------------------------------------------------------------
NET ASSETS
- ----------------------------------------------------------------------------------------------------------

Beginning of period                                                 69,307                      81,967
- ----------------------------------------------------------------------------------------------------------
END OF PERIOD                                                     $231,446                      69,307
- ----------------------------------------------------------------------------------------------------------
</TABLE>
 
 12
<PAGE>   13
 
NOTES TO FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
 
1    DESCRIPTION OF THE
     FUND                    Kemper Short-Term U.S. Government Fund (the "fund")
                             is an open-end management investment company
                             organized as a business trust under the laws of
                             Massachusetts. The fund was previously known as
                             Kemper Adjustable Rate U.S. Government Fund until
                             February 5, 1999, when it revised its investment
                             policies and acquired the net assets of Kemper
                             Short-Intermediate Government Fund in a tax-free
                             exchange.
 
                             The fund offers four classes of shares. Class A
                             shares are sold to investors subject to an initial
                             sales charge. Class B shares are sold without an
                             initial sales charge but are subject to higher
                             ongoing expenses than Class A shares and a
                             contingent deferred sales charge payable upon
                             certain redemptions. Class B shares automatically
                             convert to Class A shares six years after issuance.
                             Class C shares are sold without an initial sales
                             charge but are subject to higher ongoing expenses
                             than Class A shares and a contingent deferred sales
                             charge payable upon certain redemptions within one
                             year of purchase. Class C Shares do not convert
                             into another class. Class I shares (none sold
                             through February 28, 1999) are offered to a limited
                             group of investors, are not subject to initial or
                             contingent deferred sales charges and typically
                             have lower ongoing expenses than other classes.
                             Differences in class expenses will result in the
                             payment of different per share income dividends by
                             class. All shares of the fund have equal rights
                             with respect to voting, dividends and assets,
                             subject to class specific preferences.
 
- --------------------------------------------------------------------------------
 
2    SIGNIFICANT
     ACCOUNTING POLICIES     SECURITY VALUATION. Investments are stated at
                             value. Portfolio debt securities with remaining
                             maturities greater than sixty days are valued by
                             pricing agents approved by the officers of the
                             fund, whose quotations reflect broker/dealer-
                             supplied valuations and electronic data processing
                             techniques. If the pricing agents are unable to
                             provide such quotations, the most recent bid
                             quotation supplied by a bona fide market maker
                             shall be used. Money market instruments purchased
                             with an original maturity of sixty days or less are
                             valued at amortized cost. Futures contracts are
                             valued at the most recent settlement price. All
                             other securities are valued at their fair value as
                             determined in good faith by the Valuation Committee
                             of the Board of Trustees.
 
                             INVESTMENT TRANSACTIONS AND INVESTMENT
                             INCOME. Investment transactions are accounted for
                             on the trade date. Interest income is recorded on
                             the accrual basis and includes discount
                             amortization on all fixed income securities and
                             premium amortization on mortgage-backed securities.
                             Realized gains and losses from investment
                             transactions are reported on an identified cost
                             basis.
 
                             FUND SHARE VALUATION. Fund shares are sold and
                             redeemed on a continuous basis at net asset value
                             (plus an initial sales charge on most sales of
                             Class A shares). Proceeds payable on redemption of
                             Class B and Class C shares will be reduced by the
                             amount of any applicable contingent deferred sales
                             charge. On each day the New York Stock Exchange is
                             open for trading, the net asset value per share is
                             determined as of the close of the Exchange. The net
                             asset value per share is determined separately for
                             each class by dividing the fund's net assets
                             attributable to that class by the number of shares
                             of the class outstanding.
 
                             FEDERAL INCOME TAXES. The fund's policy is to
                             comply with the requirements of the Internal
                             Revenue Code, as amended, which are applicable to
                             regulated investment companies, and to distribute
                             all of its taxable income to its
 
                                                                              13
<PAGE>   14
 
NOTES TO FINANCIAL STATEMENTS
 
                             shareholders. Accordingly, the fund paid no federal
                             income taxes and no federal income tax provision
                             was required.
 
                             At August 31, 1998, the fund had a net tax basis
                             loss carryforward of approximately $9,652,000,
                             which may be applied against any realized net
                             taxable gains of each succeeding year until fully
                             utilized or it will expire during the period 1999
                             through 2006. In addition, from November 1, 1997
                             through August 31, 1998 the fund incurred
                             approximately $125,000 of net realized capital
                             losses. As permitted by tax regulations, the fund
                             intends to elect to defer these losses and treat
                             them as arising in the fiscal year ended August 31,
                             1999.
 
                             DIVIDENDS TO SHAREHOLDERS. The fund declares and
                             pays dividends of net investment income monthly and
                             any net realized capital gains annually, which are
                             recorded on the ex-dividend date. Dividends are
                             determined in accordance with income tax principles
                             which may treat certain transactions differently
                             than generally accepted accounting principles.
 
- --------------------------------------------------------------------------------
 
3    TRANSACTIONS
     WITH AFFILIATES         MANAGEMENT AGREEMENT. The fund has a management
                             agreement with Scudder Kemper Investments, Inc.
                             (Scudder Kemper), and pays a monthly investment
                             management fee of 1/12 of the annual rate of .55%
                             of the first $250 million of average daily net
                             assets declining to .40% of average daily net
                             assets in excess of $12.5 billion. The fund
                             incurred a management fee of $231,000 for the six
                             months ended February 28, 1999.
 
                             UNDERWRITING AND DISTRIBUTION SERVICES
                             AGREEMENT. The fund has an underwriting and
                             distribution services agreement with Kemper
                             Distributors, Inc. (KDI). Underwriting commissions
                             retained by KDI in connection with the distribution
                             of Class A shares for the six months ended February
                             28, 1999 are $4,000.
 
                             For services under the distribution services
                             agreement, the fund pays KDI a fee of .75% of
                             average daily net assets of the Class B and Class C
                             shares pursuant to separate Rule 12b-1 plans for
                             the Class B and Class C shares. Pursuant to the
                             agreement, KDI enters into related selling group
                             agreements with various firms at various rates for
                             sales of Class B and Class C shares. In addition,
                             KDI receives any contingent deferred sales charges
                             (CDSC) from redemptions of Class B and Class C
                             shares. Distribution fees and CDSC received by KDI
                             for the six months ended February 28, 1999 are
                             $110,000.
 
                             ADMINISTRATIVE SERVICES AGREEMENT. The fund has an
                             administrative services agreement with KDI. For
                             providing information and administrative services
                             to shareholders, the fund pays KDI a fee at an
                             annual rate of up to .25% of average daily net
                             assets of each class. KDI in turn has various
                             agreements with financial services firms that
                             provide these services and pays these firms based
                             on assets of fund accounts the firms service.
                             Administrative services fees paid by the fund to
                             KDI for the six months ended February 28, 1999 are
                             $92,000.
 
                             SHAREHOLDER SERVICES AGREEMENT. Pursuant to a
                             services agreement with the fund's transfer agent,
                             Kemper Service Company (KSvC) is the shareholder
                             service agent of the fund. Under the agreement,
                             KSvC received shareholder services fees of $113,000
                             for the six months ended February 28, 1999.
 
 14
<PAGE>   15
 
NOTES TO FINANCIAL STATEMENTS
 
                             OFFICERS AND TRUSTEES. Certain officers or trustees
                             of the fund are also officers or directors of
                             Scudder Kemper. For the six months ended February
                             28, 1999, the fund made no direct payments to its
                             officers and incurred trustees' fees of $9,000 to
                             independent trustees.
 
- --------------------------------------------------------------------------------
 
4    INVESTMENT
     TRANSACTIONS            For the six months ended February 28, 1999,
                             investment transactions (excluding short-term
                             instruments) are as follows (in thousands):
 
                             Purchases                                  $519,749
 
                             Proceeds from sales                         356,946
 
- --------------------------------------------------------------------------------
 
5    CAPITAL SHARE
     TRANSACTIONS            The following table summarizes the activity in
                             capital shares of the fund (in thousands):
 
<TABLE>
<CAPTION>
                                                           SIX MONTHS
                                                              ENDED                        YEAR ENDED
                                                          FEBRUARY 28,                     AUGUST 31,
                                                              1999                            1998
                                                      ---------------------           ---------------------
                                                      SHARES        AMOUNT            SHARES        AMOUNT
                             ------------------------------------------------------------------------------
                             <S>                      <C>          <C>                <C>          <C>
                             SHARES SOLD
                              Class A                  4,355       $ 35,260            1,939       $ 15,939
                             ------------------------------------------------------------------------------
                              Class B                    466          4,582              540          4,466
                             ------------------------------------------------------------------------------
                              Class C                    313          2,548              172          1,427
                             ------------------------------------------------------------------------------
                             ------------------------------------------------------------------------------
                              SHARES ISSUED IN REINVESTMENT OF DIVIDENDS
                              Class A                    145          1,451              296          2,440
                             ------------------------------------------------------------------------------
                              Class B                     30            242               32            261
                             ------------------------------------------------------------------------------
                              Class C                      5             40                7             56
                             ------------------------------------------------------------------------------
                              SHARES REDEEMED
                              Class A                 (5,321)       (43,354)          (3,734)       (30,799)
                             ------------------------------------------------------------------------------
                              Class B                   (494)        (4,040)            (516)        (4,267)
                             ------------------------------------------------------------------------------
                              Class C                   (257)        (2,103)            (143)        (1,181)
                             ------------------------------------------------------------------------------
                             ------------------------------------------------------------------------------
                              CONVERSION OF SHARES
                              Class A                    273          2,232               81            669
                             ------------------------------------------------------------------------------
                              Class B                   (273)        (2,232)             (81)          (669)
                             ------------------------------------------------------------------------------
                             ------------------------------------------------------------------------------
                              (A) SHARES ISSUED IN ACQUISITION
                              Class A                 11,717         95,496               --             --
                             ------------------------------------------------------------------------------
                              Class B                  8,251         67,407               --             --
                             ------------------------------------------------------------------------------
                              Class C                    840          6,878               --             --
                             ------------------------------------------------------------------------------
                             ------------------------------------------------------------------------------
                              NET INCREASE (DECREASE) FROM
                              CAPITAL SHARE TRANSACTIONS           $164,407                        $(11,658)
                             ------------------------------------------------------------------------------
</TABLE>
 
                             (a) On February 5, 1999, the fund acquired the net
                             assets of Kemper Short-Intermediate Government
                             Fund, amounting to $169.8 million, and issued 20.8
                             million shares in a tax-free exchange. The
                             aggregate net assets of the fund immediately after
                             the exchange were $234.8 million.
 
                                                                              15
<PAGE>   16
 
NOTES TO FINANCIAL STATEMENTS
 
- --------------------------------------------------------------------------------
 
6    FINANCIAL FUTURES
     CONTRACTS               The fund has entered into exchange traded financial
                             futures contracts in order to take advantage of
                             anticipated market conditions and, as such, bears
                             the risk that arises from owning these contracts.
 
                             At the time the fund enters into a futures
                             contract, it is required to make a margin deposit
                             with its custodian. Subsequently, payments are made
                             on a daily basis between the fund and the broker as
                             the market value of the futures contract fluctuates
                             and are recorded for financial reporting purposes
                             as unrealized gains or losses by the fund. At
                             February 28, 1999, the market value of assets
                             pledged by the fund to cover margin requirements
                             for open futures positions was $248,000. The fund
                             also had liquid assets in excess of the face amount
                             of open futures positions at February 28, 1999:
 
<TABLE>
<CAPTION>
                                                                                       UNREALIZED
                                                     FACE                 EXPIRATION    GAIN AT
                             TYPE                   AMOUNT     POSITION     MONTH       2/28/99
                             --------------------------------------------------------------------
                             <S>                  <C>          <C>        <C>          <C>
                             U.S. Treasury Note   $7,982,000    Long      March '99     $181,000
</TABLE>
 
 16
<PAGE>   17
 
FINANCIAL Highlights
 
<TABLE>
<CAPTION>
                                              ----------------------------------------
                                                             CLASS A
                                              ----------------------------------------
                                               SIX MONTHS
                                                 ENDED         YEAR ENDED AUGUST 31,
                                              FEBRUARY 28,   -------------------------
                                                  1999       1998   1997   1996   1995
- --------------------------------------------------------------------------------------
<S>                                           <C>            <C>    <C>    <C>    <C>
- --------------------------------------------------------------------------------------
PER SHARE OPERATING PERFORMANCE
- --------------------------------------------------------------------------------------
Net asset value, beginning of period             $8.19       8.31   8.22   8.30   8.33
- --------------------------------------------------------------------------------------
Income from investment operations:
  Net investment income                            .14        .41    .45    .46    .48
- --------------------------------------------------------------------------------------
  Net realized and unrealized gain (loss)         (.04)      (.11)   .09   (.09)  (.04)
- --------------------------------------------------------------------------------------
Total from investment operations                   .10        .30    .54    .37    .44
- --------------------------------------------------------------------------------------
Less distribution from net investment income       .18        .42    .45    .45    .47
- --------------------------------------------------------------------------------------
Net asset value, end of period                   $8.11       8.19   8.31   8.22   8.30
- --------------------------------------------------------------------------------------
TOTAL RETURN (NOT ANNUALIZED)                     1.23%      3.68   6.75   4.55   5.52
- --------------------------------------------------------------------------------------
RATIOS TO AVERAGE NET ASSETS (ANNUALIZED)
- --------------------------------------------------------------------------------------
Expenses                                          1.35%      1.36   1.25   1.15   1.10
- --------------------------------------------------------------------------------------
Net investment income                             4.03%      4.79   5.50   5.49   5.76
- --------------------------------------------------------------------------------------
</TABLE>
 
<TABLE>
<CAPTION>
                                              ----------------------------------------
                                                              CLASS B
                                              ----------------------------------------
                                               SIX MONTHS
                                                 ENDED         YEAR ENDED AUGUST 31,
                                              FEBRUARY 28,   -------------------------
                                                  1999       1998   1997   1996   1995
- --------------------------------------------------------------------------------------
<S>                                           <C>            <C>    <C>    <C>    <C>
- --------------------------------------------------------------------------------------
PER SHARE OPERATING PERFORMANCE
- --------------------------------------------------------------------------------------
Net asset value, beginning of period             $8.21       8.32   8.23   8.31   8.32
- --------------------------------------------------------------------------------------
Income from investment operations:
  Net investment income                            .11        .36    .39    .40    .43
- --------------------------------------------------------------------------------------
  Net realized and unrealized gain (loss)         (.04)      (.11)   .09   (.09)  (.04)
- --------------------------------------------------------------------------------------
Total from investment operations                   .07        .25    .48    .31    .39
- --------------------------------------------------------------------------------------
Less distribution from net investment income       .15        .36    .39    .39    .40
- --------------------------------------------------------------------------------------
Net asset value, end of period                   $8.13       8.21   8.32   8.23   8.31
- --------------------------------------------------------------------------------------
TOTAL RETURN (NOT ANNUALIZED)                      .87%      3.06   5.96   3.79   4.84
- --------------------------------------------------------------------------------------
RATIOS TO AVERAGE NET ASSETS (ANNUALIZED)
- --------------------------------------------------------------------------------------
Expenses                                          2.08%      1.99   1.93   1.89   1.85
- --------------------------------------------------------------------------------------
Net investment income                             3.30%      4.16   4.82   4.75   5.01
- --------------------------------------------------------------------------------------
</TABLE>
 
                                                                              17
<PAGE>   18
 
FINANCIAL HIGHLIGHTS
 
<TABLE>
<CAPTION>
                                           --------------------------------------------
                                                             CLASS C
                                           --------------------------------------------            
                                           SIX MONTHS
                                              ENDED         YEAR ENDED AUGUST 31,
                                           FEBRUARY 28,   -------------------------
                                               1999       1998   1997   1996   1995
- ---------------------------------------------------------------------------------------
<S>                                        <C>            <C>    <C>    <C>    <C>  
- ---------------------------------------------------------------------------------------
PER SHARE OPERATING PERFORMANCE
- ---------------------------------------------------------------------------------------
Net asset value, beginning of period          $8.22       8.33   8.24   8.32   8.33
- ---------------------------------------------------------------------------------------
Income from investment operations:
  Net investment income                         .12       .36    .39    .40    .43
- ---------------------------------------------------------------------------------------
  Net realized and unrealized gain (loss)      (.04)      (.11)  .09    (.09)  (.04)
- ---------------------------------------------------------------------------------------
Total from investment operations                .08       .25    .48    .31    .39
- ---------------------------------------------------------------------------------------
Less distribution from net investment
income                                          .16       .36    .39    .39    .40
- ---------------------------------------------------------------------------------------
Net asset value, end of period                $8.14       8.22   8.33   8.24   8.32
- ---------------------------------------------------------------------------------------
TOTAL RETURN (NOT ANNUALIZED)                    .92%     3.10   5.98   3.82   4.89
- ---------------------------------------------------------------------------------------
RATIOS TO AVERAGE NET ASSETS (ANNUALIZED)
- ---------------------------------------------------------------------------------------
Expenses                                       1.99%      1.95   1.88   1.89   1.79
- ---------------------------------------------------------------------------------------
Net investment income                          3.39%      4.20   4.87   4.75   5.07
- ---------------------------------------------------------------------------------------
 
<CAPTION>
- ------------------------------------------------------------------------------------------------
SUPPLEMENTAL DATA FOR ALL CLASSES 
- ------------------------------------------------------------------------------------------------
                                           SIX MONTHS
                                              ENDED               YEAR ENDED AUGUST 31,
                                           FEBRUARY 28,   --------------------------------------
                                               1999        1998     1997     1996     1995
- ------------------------------------------------------------------------------------------------
<S>                                        <C>            <C>      <C>      <C>      <C>
Net assets at end of period (in
thousands)                                   $231,446     69,307   81,967   94,477   129,757
- ------------------------------------------------------------------------------------------------
Portfolio turnover rate (annualized)              517%       149      249      272       308
- ------------------------------------------------------------------------------------------------
</TABLE>
 
Total return does not reflect the effect of any sales charges. Data for the
period ended February 28, 1999 is unaudited.
 
Per share data for the six months ended February 28, 1999 is determined based on
average shares outstanding.
 
 18
<PAGE>   19
 
NOTES
 
















                                                                              19
<PAGE>   20

TRUSTEES AND OFFICERS


TRUSTEES                   OFFICERS

DANIEL PIERCE              MARK S. CASADY               RICHARD L. VANDENBURG
Chairman and Trustee       President                    Vice President

LEWIS A. BURNHAM           PHILIP J. COLLORA            LINDA J. WONDRACK
Trustee                    Vice President and           Vice President
                           Secretary
DONALD L. DUNAWAY                                       MAUREEN E. KANE
Trustee                    JOHN R. HEBBLE               Assistant Secretary
                           Treasurer
ROBERT B. HOFFMAN                                       CAROLINE PEARSON
Trustee                    ANN M. MCCREARY              Assistant Secretary
                           Vice President
DONALD R. JONES                                         ELIZABETH C. WERTH
Trustee                    ROBERT C. PECK, JR.          Assistant Secretary
                           Vice President
THOMAS W. LITTAUER                                      BRENDA LYONS
Trustee and                KATHRYN L. QUIRK             Assistant Treasurer
Vice President             Vice President

SHIRLEY D. PETERSON
Trustee

WILLIAM P. SOMMERS
Trustee

 
- --------------------------------------------------------------------------------
LEGAL COUNSEL                  VEDDER, PRICE, KAUFMAN & KAMMHOLZ
                               222 North LaSalle Street
                               Chicago, IL 60601
- --------------------------------------------------------------------------------
SHAREHOLDER SERVICE AGENT      KEMPER SERVICE COMPANY
                               P.O. Box 419557
                               Kansas City, MO 64141
- --------------------------------------------------------------------------------
CUSTODIAN AND                  INVESTORS FIDUCIARY TRUST COMPANY
TRANSFER AGENT                 801 Pennsylvania Avenue
                               Kansas City, MO 64105
- --------------------------------------------------------------------------------
PRINCIPAL UNDERWRITER          KEMPER DISTRIBUTORS, INC.
                               222 South Riverside Plaza  Chicago, IL 60606-5808
                               www.kemper.com



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KSTGF - 3 (4/19/99) 1071080
        


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