精选优质文档-倾情为你奉上定语从句一、定义及相关术语1、定语从句:修饰某一名词或代词的从句叫定语从句。定语从句一般跟在它所修饰的先行词之后。2、先行词:被定语从句修饰的词叫先行词。3、关系词:引导定语从句的词叫关系词。关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等;关系副词有when, where, why等。 关系词通常有下列三个作用:A、引导定语从句;B、代替先行词;C、在定语从句中担当一个成分。二、关系代词引导的定语从句1、who 指人,在定语从句中作主语。The boys who are playing football are from Class One. 2、whom 指人,在定语从句中做宾语,常可省略。Mr Liu is the person ( whom ) you talked about on the bus.【注意】关系代词whom 在口语或非正式文体中常可用who 来代替,也可省略。The man ( whom / who )y