题目内容

10.No one in the office knew ____ caused this obvious change in the young man's behavior and attitude.(  )
A.what was itB.what it was
C.what was it thatD.what it was that

分析 办公室里没人知道是什么导致这位年轻人在态度和行为上的这种明显变化.

解答 答案:D.
本句是考查宾语从句,引导宾语从句的是一个强调句型的特殊疑问句式:What is/was it that+其他?.强调的为主语what;众所周知,宾语从句中的疑问句需要使用陈述语序,故排除A和C;B项强调句式的结构不完整,漏掉了一个关键词that,故选D.

点评 将强调句型尤其是疑问句式放到宾语从句中考查无形中加大了试题的难度,要求学生认真分析句子结构及内容,掌握其基本用法,尤其是要注意在宾语从句中疑问句式要用陈述语序等问题.

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