A recent poll of elected officials suggests that candidates, when in the midst of a tough campaign, often make statements about an opponent that they may not think is true.


is

are

to be

of as

it is

考题讲解

题目分析:
想正确得到本题的答案,需要对嵌入式关系分句概念十分熟悉。

选项分析:

A选项:如果在划线部分填入is,则根据就近修饰原则,定语从句that they may not think is true必然修饰一个最近的单数名词。按照嵌入式关系分句的概念,该句可以还原为:
they may not think (that) an opponent is true.
在逻辑上,它们可能不认为对的,应该是“言论”,而不是“对手”。

B选项:Correct. 本选项在语法和逻辑上均是正确的。

C选项:填入的to be后,该定语从句不再是嵌入式关系分句,就算该从句可以跳跃修饰名词statements,代入先行词则有:
they may not think statements to be true. 
复合宾语statements to be true需改为宾语从句。这点考查了不定式和从句的区别。由于think是看法类动词且属于主动语态,所以约束力较弱,应该用宾语从句。

D选项:of和as均为介词,放在一起导致了语法错误。

E选项:若填入it is,则整个句子变为:
they may not think (that) it is true.
定语从句中什么成分也不缺少,导致了先行词无法在定语从句中充当任何成分。

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Prep2012-SC

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