专题二 句法篇第 1 讲 定语从句考点一 定语从句概述及关系代词引导的定语从句一、定语从句概述1.定义:在复合句中,修饰限定某一名词(或代词)的句子,叫定语从句
2.先行词:被定语从句修饰的词称为先行词
先行词一般是名词或不定代词,如:some, any, every, no与body, thing 的合成词或 all, none, any, some, that, those 等代词
数词和人称代词也同样可作先行词
3.关系词:连接先行词与从句的词叫关系词
关系代词:who, whom, which, that, whose, as 等
关系副词:when, where, why 等
4.分类:定语从句分为限制性定语从句和非限制性定语从句两类
区别:限制性定语从句对先行词起修饰限定作用,而非限制性定语从句对先行词起补充说明作用,先行词与定语从句往往由逗号隔开
试比较:5.功能:相当于形容词,修饰名词或代词,在句中作定语
6.位置:定语从句常置于被修饰词之后;as 引导的非限制性定语从句可置于主句前、句中,也可置于主句之后
①Those who are for the plan raise your hands, please
请支持这个计划的人举手
②As is known to us all, the earth is spinning around the sun
我们都知道,地球围绕太阳旋转
二、关系代词引导的定语从句引导定语从句的关系代词有:that, which, who, whom, whose, as 等,关系代词可作主语、宾语、定语等
1.who, whom, that 这些词代替的先行词是表示人的名词或代词,在从句中可作主语、宾语等
I've made good friends with several of the students in m