精选优质文档-倾情为你奉上定语从句讲解 1定语从句:复合句中修饰某一名词或代词的从句叫定语从句。 Recently I bought an ancient Chinese vase which was very reasonable. Those who work hard will make progress.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。1)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。2)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。例如:Themanwhoisshakinghandswithmyfatherisapoliceman.该句, whoisshakinghandswithmyfather是定语从句,修饰先行词theman,“who”是引导定语从句的关系词,