1、Unit9语法导学案:定语从句专题讲解一、 基本概念: 在复合句中,修饰某一名词或代词的从句叫定语从句。 Do you know the man who spoke at the meeting just now? That is the house where he lived ten years ago. 定语从句所修饰的词叫先行词;定语从句一般用关系代词或关系副词来引导,关系词放在先行词与定语从句之间起连接作用,同时又作从句中的一个成分。引导定语从句的关系代词有:that, who, whom, whose, which,as 关系副词有:when,