GMAT语法考试模拟试题训练9

>>GMAT模拟题练习：GMAT语法考试模拟试题训练9

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Many entomologists say that campaigns to eradicate the fire ant in the United States have failed because the chemicals that were used were effective only in wiping out the ant's natural enemies, which made it easier for them to spread.

A.which made it easier for them

B.which makes it easier for it

C.thus making it easier for them

D.thus making it easier for the ant

E.thereby, it was made easier for the ant

正确答案：D

GMAT语法题目解析

题目释义：Many entomologists say that campaigns.....have failed...., thus making....

考点

句子结构

选项分析

A. which就近修饰enemies，逻辑意思不合理;them无指代对象。

B. which就近修饰enemies错误。

C. them无指代对象。

D. Correct;making做结果状语

E. thereby是副词，而且只是插入成分，两句话见没有连词，run-on sentence;it was made easier for the ant to spread中it指代后面的to spread，但是表达太拙劣，而且make的动作发出者不明，割裂了thereby前后句子的关系。

补充说明

现在分词短语在句尾: 表伴随动作, 状态, 功能, 与句子谓语动作同时发生，逻辑主语等于句子主语，表伴随结果，整个句子是原因，导致分词动作产生，无逻辑主语。可以在分词前加thus，thereby，in effect等副词，也可以不加。

过去分词短语在句尾，一般优先就近作定语修饰名词，–ed分词短语在句首,其逻辑主语等于句子的主语。

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