21. Due to its excellent tensile strength, acetate rayon is an important material for products so as balloons, parachutes, fire hoses, and webbing.
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答案：C
, f" G6 J; g4 l' j/ Y- y0 f2 i测试点：习语。 . ]- V1 ^2 v# c0 G2 I
分析：看到紧接其后的耶，应想到这里要用such。Such as是固定短语。
# ?0 p( R+ m4 `- G解题要点；such as是TOEFL考题中常见的短语.
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( d& z% |1 ^& G6 l9 v* D F22. It has not been determined how years sea turtles can live in their natural environment, but they will reach a very old age if left undisturbed by humans.
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答案：A 9 J3 \( ?1 E: ?1 U$ `( ?# a3 X4 C
测试点：缺词. 6 U$ I1 p. ]( `# R- Z
分析：how是副词，后面不能直接加名词．应为how many years. & J" R' W( C2 x! d: I, p8 u. Z+ d
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23. A footnote is characteristically employed to give information that is too long or too detailed be included in the body of a text. ! Q7 Z# F# B! [) d2 @9 d
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答案：D 6 }5 e- e5 q' j/ P
测试点：too…to…的用法.
. d4 }: c6 R& J. Y9 t分析：看到前文的两个too,应立即注意后面是否有to…的部分．此处动词be前缺to. 2 a m! u m1 v% c" X- p
7 l1 a* u+ {8 h8 V2 i/ \0 w24. Watercolors dry more faster than other paints. ; f! L+ w8 W# K% l! z* `/ x1 j, L% Z
) Y1 Z4 E1 [) y8 \& m% y答案：C
5 n/ u0 d8 ~, T! p测试点：比较级形式重复。
1 W9 M9 x/ o7 Y. t分析：遇到形容词或副词的比较级，应注意其比较形式是否重复。此处应去掉more.
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1 S7 V* o" N. n25. In mathematical terms, modern algebra is set of objects with rules for connecting or relating those objects.
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* p3 G' p) u- \答案：B
3 P) B% h; E# T测试点：冠词.
4 J9 G7 F2 w; ^6 h+ J分析：set是可数名词，它前面一定要有冠词．应为…a set(of)…. * j5 S# j$ r0 {1 O; S
解题要点：TOEFL同类考题还有a group of，a series of, a blend of. |
发表于 2012-8-14 22:34:35
