精选优质文档-倾情为你奉上一、定义:在复合句中,修饰某一名词或代词的从句叫做定语从句。如:1) The manwho lives next to usis a policeman.2) You must do everythingthat I do.上面两句中的man和everything是定语从句所修饰的词,叫先行词,定语从句放在先行词的后面。*引导定语从句的词有关系代词that, which, who(宾格whom, 所有格whose)和关系副词where, when、why*关系词常有三个作用:1、引导定语从句 2、代替先行词 3、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,在从句中做主语(1)The boyswhoare playing footballare from Class One.(2)Yesterday I helped an old manwholost his way.*2. whom指人,在定语从句中充当宾语,常可省略。(1) Mr. Liu is