定语从句（the attributive clause）一．什么叫定语从句？一种句子作定语就叫定语从句。二．定语从句的构造及种类1.构造：关系词+主语+谓语+其他2.种类：限制性定语从句和非限制性定语从句三．关系词的分类及关系词1.关系代词：who，whom, whose, that ,which, as 2.关系副词：when，where，why四．关系词的功用1.起连接作用，引导定语从句2.在定语从句中作一种成分——主语，宾语，状语，定语，表语。五．什么是先行词？被定语从句所修饰的词是先行词。六．关系词的使用方法1.who当先行词是指人得名词或代词，并且关系词在句中作主语时，选 who。The boy who is standing over there is Tom.He who doesn’t reach the Great Wall is not a true man.2.whom当先行词是指人得名词，并且关系词在句中作主语时，选 whom.This is our English teacher whom everybody likes.3.whose ① 当先行词是指人的名词，并且关系词在句中作定语时，选 whose. This is my deskmate whose father works in a factory. ② 当先行词是指物的名词，并且关系在句中作定语时，选 whose. We study in a classroom whose windows face to the south.4.that ① 当先行词是指物的名词，关系词在句中作主语时，选 that. This is a machine that can walk. ② 当先行词是指物的名词，关系词在句中作宾语时，选 that. 此外，that 可以省略。 I like the present (that) my father sent me. ③ 当先行词是指人的名词，关系词也可选用 that=who The boy that/who is playing football on the play ground is my brother.5.which当先行词是指物的名词时，关系词也可选用 which，它在句中作主语或宾语，which=that6.下列状况下，关系词只能选用 that ① 当先行词为不定代词 something, anything, nothing, everything 时 Is there anything that I can do for you?② 当先行词为不定代词 all 时Mr. Li does all that he can to do his work well.③ 当先行词被 all, some, any 修饰时These are all the things that I have done today.④ 当先行词被 the only, the very 修饰时This is the only computer that he often turns to for help.⑤ 当先行词被序数词，形容词最高级修饰时This is the clean...
