2004.1

18. Massive gains in computer speed, power, and reliably have been largely due

         A                            B            C

  to advances in silicon tec~logics and manufacturing processes.

answer:      B                reliably------------reliablity

请问“have been due to” 是什么结构？

21. The snapper, a large-headed fish with a long dorsal fin, is named to its

                          A                        B

characteristic way of suddenly, shutting its mouth.

answer:  C       but how to correct it?

37. The Louisiana Purchase of 1803 increased the territory of the United States

                              A

by approximate 846,000 square miles, practically doubling the area of the

       B                                   C       D

United States.

answer:  B       but how to correct it?

38. A most useful tool for analyzing the elemental composition of fossils is the

A              B                       C

electron probe, a modify electron microscope.

answer:  D         modify--------modified ?

but how about A?           A most--------the most ?

对比2002.8-------15

15. _____ important development of the Neolithic age was not in the manufacture of stone tools but in the production of food.

   (A) The most

   (B) Most

   (C) Most of

   (D) Of the most

answer:  A

thanks a lot!!

18 题中，be due to是个固定词组，翻译成“因为，由于”。

21题中，我觉得这个named to也有点问题，好像用by跟合适。但是这个of suddenly, shutting its mouth中间怎么还有个逗号，感觉比较奇怪。但如果没有逗号，觉得好像没有问题。