第 1 页 共 1 页 限制性定语从句和非限制性定语从句 一、定语的概念:定语通常由形容词来担任,起限定和修饰名词或代词的作用
① She is a beautiful girl
(beautiful 是定语) 二、定语从句的概念:由一个句子来担任定语的功能,相当于一个形容词,用来限定和修饰名词或代词
② She is a girl who is beautiful
(who is beautiful 这整个句子做定语) 三、定语从句中的概念 例: This is an old computer
It works much slower
(这是两个简单句,其中后一句中的it 代替an old computer) →This is an old computerwhich/thatworks much slower
(这是一个复合句,which/that 代替an old computer 引导定语从句) ②The CD is very good
I bought the CD
→The CD that/which I bought is very good
③This is the house
We lived in the house two years ago
→This is the house where we lived two years ago
先行词:是被定语从句所修饰的名词或代词 B
关系词:引导定语从句的词 ►关系词主要起三个作用:1
代替先行词 2
在定语从句中作句子成分引导从句 3
把从句和主句连接起来 四、定语从句的分类:限制性定语从句和非限制性定语从句 五、限制性定语从句与非限制性定语从句的区别: 限制性定语从句 非限制性定语从句 形式上 不用逗号和主句隔开 用逗号和主句隔开 意义上 是先行词不可缺少的定语,去掉后句