21. Due to its excellent tensile strength, acetate rayon is an important material for products so as balloons, parachutes, fire hoses, and webbing. 4 t ?/ [7 j9 C6 {4 E; }6 a0 A, e
; M& U8 f' r' [2 n答案：C
; Z: d0 i- u! J! A# H测试点：习语。 $ q g* N9 ^# q* s6 h
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。
' {7 k( b5 ? W! ^$ K& u }3 }解题要点；such as是TOEFL考题中常见的短语. 9 i% G6 [% M- R& A# Z
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22. 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
" @7 O7 x% l: P2 o/ s& G测试点：缺词. + {1 s) h: y" j4 w
分析：how是副词，后面不能直接加名词．应为how many years.
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+ P% M/ M0 _2 j! a7 {( U1 Q6 t23. A footnote is characteristically employed to give information that is too long or too detailed be included in the body of a text. - V+ T' m, P& o4 p/ H7 \) _! W& q
$ X( w4 x8 o; b: |答案：D 7 j/ [" x% l7 l. h, V
测试点：too…to…的用法.
* ]# v5 G+ A! @- f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 E6 G7 \, D! l. v7 J- o% z7 u( {
7 q2 j* B7 K( d% |$ B% C
24. Watercolors dry more faster than other paints.
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答案：C 6 v0 Y4 y+ J+ x% B, U6 D
测试点：比较级形式重复。
' T% _" D4 R* p ~$ _) O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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5 u& _/ c) M! W3 w1 S25. In mathematical terms, modern algebra is set of objects with rules for connecting or relating those objects.
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6 n8 s% `. F$ z3 a5 ^答案：B
# D9 N4 b9 ?) L! S$ ]% N- S测试点：冠词.
: }. S' L. Y! V5 j P分析：set是可数名词，它前面一定要有冠词．应为…a set(of)…. / D0 i! H* w: e9 ^4 R. M
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
