题目内容
9．We stopped for something is of great use，____ we shouldn't be lost in it．（ ）| A． | who | B． | that | C． | which | D． | what |
分析 我们停下是为了很有用处的某个东西，那是一个我们不应该丢失的东西．
解答 答案：C．
who意思是"谁"引导定语从句的时候，先行词是人；that意思是"那，那个"引导定语从句的时候，先行词可以是人也可以是物，可以作主语也可以作宾语；which意思是"哪一个"引导定语从句的时候，先行词是物；what不能引导定语从句．根据"We stopped for something is of great use，____ we shouldn't be lost in it．"先行词是something，是表示物的先行词，所以要用which来引导定语从句，这是一个分离性的定语从句，故选C．
点评 首先要掌握这几个疑问代词的意思以及用法，然后结合具体的题目，就可以确定正确答案．
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