文档介绍：: .
定语从句( the attributive clause )
一．什么叫定语从句？ 一个句子作定语就叫定语从句。
二．定语从句的结构及种类
1. 结构：关系词 + 主语 + 谓语 + 其它
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. 在定语从句中作一个成分——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．关系词的用法
1. who
当先行词是指人得名词或代词，而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，而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，而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，而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 that.
that. 另外， that 可以省略。
当先行词是指物的名词，关系词在句中作主语时，选 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
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=that
6. 下列情况下，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 thing