高考英语定语从句讲解：分清真关系词与假关系词

　　英语中可用于引导定语从句的关系词主要有关系代词that, which, who, whom, whose, as和关系副词when, where, why。但命题者在考查定语从句时，通常会用what, them, they, those, it 等“假关系代词”和how, there, then等“假关系副词”来作干扰。如：

　　The children, _______ had played the whole day long, were worn out. (2013浙江卷)

　　A. all of what B. all of which C. all of them D. all of whom

　　分析：在四个选项中，all of 是共同部分，不同部分是all of 后面的那个词。而在all of 后面的这四个词中，what和them都不是关系代词，不能引导定语从句，故可首先排除A和C;又因为先行词children指人，故在B和D两个选项中确定D为最佳答案。

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