VAN KAMPEN AMERICAN CAPITAL INSURED INCOME TRUST SER 47, 485BPOS, EX-99.1.1, 2000-07-25

VAN KAMPEN AMERICAN CAPITAL INSURED INCOME TRUST SER 47
485BPOS, EX-99.1.1, 2000-07-25

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               Consent of Independent Certified Public Accountants

     We have issued our report dated May 19, 2000 accompanying the financial
statements of Van Kampen American Capital Insured Income Trust, Series 46 and 47
as of March 31, 2000, and for the period then ended, contained in this
Post-Effective Amendment No. 5 to Form S-6.

     We consent to the use of the aforementioned report in the Post-Effective
Amendment and to the use of our name as it appears under the caption "Auditors".

                                                              Grant Thornton LLP

Chicago, Illinois
July 25, 2000