31. For centuries waterwheels were the only sources of power aside from human and animal strong . 4 M# I; l3 t, m" g# \3 ?
( E. a* a% X( J8 Z答案：D
$ W% P3 _6 ]$ t测试点：词性.
7 ?6 O7 {* j* S, F6 I分析：形容词human与animal修饰的应是名词，而strong是形容词．应为strength. 0 h8 y- \, o- K! P
解题要点：应记牢strong及其名词strength两个词形.
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32. Proteins form the most of the structure of the body and also act as enzymes. ' v/ P- L# z! ^( y1 O t% A
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答案：A
% F! u. m# \0 Q: L2 W% O x) F测试点；冠词。
5 ~& n( c2 ]4 A8 y# r分析：most后接名词或介词，意为“大多数”，不是最高级形式，前面不加冠词。
% k' E5 g; I/ @解题要点，；most+名词(大多数的)和the most+形／副(最高级)在TOEFL考题中常见混淆用错.
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33. The attorney general of the United States advises the President on any questions of law who may arise in the conduct of administrative affairs.
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4 P. H7 b5 G" M答案：B 9 A+ b* f9 z+ b1 E
测试点：who和which的用法. 1 g+ ^* |, {$ a# p7 S% W. Y, A
分析：定语从句中，作主语的关系代词指代先行词law，是物而不是人，不能用who．应为which或that. 6 v( r! y2 X4 ^$ a; {! |
解题要点：关系代词who和which混淆错用是TOEFL常考题型. " V; G9 J ?: w& ]; O1 j
: ^% h( p* [6 q' n% I Q34. Many of the science fiction publications by Ray Bradbury display a desire to rebel against society’s depend on machines. ' n c2 I* T; \" _9 {; u3 J
9 q7 f3 D: d8 e/ Z6 T$ i5 j0 j
答案：D
i- @7 K X% J测试点：词性.
( C* O& Q7 {8 x) Z' x分析：名词所有格’s后应接名词，(D)depend应为dependence. 3 T4 K6 y, _* H2 r
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35. The age of a geological sample can be estimated from the ratio of radioactive to nonradioactive carbon present in the object is examined.
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* @, z2 k, z8 d+ f3 _& I2 D答案：D 4 L6 k1 G# T" ^% v
测试点：缺词／多词。 1 w5 c [1 R3 R2 C0 N
分析：名词后可接从句或作用相当于从句的分词作定语。此处可看作是定语从句缺主语that/which，或是分词作定语，多了动词is．(C) present (现存的)在此是形容词. |
发表于 2012-8-14 22:34:35
