定语从句的用法
在复合句中 , 修饰名词或代词的从句叫定语从句, 被修饰的名词或代词叫先行词 , 引导定语从句的有关系代词 who, whom, whose, which, that等和关系副词where, when, why等 , 关系代词和关系副词在定语从句中担任句子成份。
1、由who引导的定语从句中 , who用作主语 , 如 : This is the boy who often helps me。
2、由whom引导的定语从句中,whom用作宾语,如:The man whom you are waiting for has gone home。
3、由whose引导的定语从句中 , whose用作定语 , 如 : Do you know the girl whose skirt is white?
4、由which引导的定语从句中,which用作主语或谓语动词的宾语或介词的宾语,如:
The room in which there is a machine is a work shop。
5、由that引导的定语从句中,that可以指人或物,在从句中作主语或谓语动词的宾语,但不能放在介词后面作介词宾语,如:
The book that I bought yesterday was written by Lu Xun。
6、由when, where, why引导的定语从句,如:
I don't know the reason why he was late。
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