历年托福考试语法真题全面解析54

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26. The first United States citizen to become a professional sculptor was Patience Lovell Wright, which works were executed in wax.  
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答案：C
测试点：从句连接词.
分析：此处的连接词在定语从句中作works的定语，应用whose.
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' l0 D4 x1 v* B5 z0 j8 N9 [" |27. A electric current can consist of charges that are positive, negative, or both.  
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5 o* X' U# w! S7 G答案：A
( m$ b: f3 h- |* q5 O测试点：冠词a和an的用法.
. E) W% G- `6 X' ^1 l分析：electric以元音开头，前面冠词要用an.
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0 V5 d8 N5 f' ^7 \28. Progress in the field of optically and new kinds of glass have made it possible to construct photographic lenses with a minimum number of materials.
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5 D* a7 X1 a8 l5 ?. t5 F$ y0 Z" i! N答案：A
测试点；词性。
8 e) z# M+ N7 Q! m' ]  t1 O分析：In the field of后接名词，而optically是副词。应为optics。
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% }( P' L6 ?: o1 |9 Q: [/ x4 b2 b. c29. In nature, the distributive of plants is obviously related to climate.  
  
答案：B 测试点；词性.
分析：在冠词the与介词of之间的，不可能是单个的形容词，而应是名词．此处应用distribution作句子主语.
& F) e2 ^$ x) }4 s' h) y; P: F解题要点：见到the／a…of之间的划线词，应注意它是否为名词.
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5 V6 q. b/ e' i/ O30. The United States Constitution requires that the President be a natural-born citizen, thirty-five years of age or be older, who has lived in the United States for a minimum of fourteen years.
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) C  P- I6 O  o. t1 ^答案：C
测试点：并列结构.
! Z1 g$ z6 O) h- {/ B$ h& X: A分析：连词旧两边的成份应同性质．or前为表示年龄的短语thirty-five years of age后也应是说明年龄的older，动词be多余．(A)系词be是正确用法，因为前面的动词require要求其宾语从句用原形动词。