什么是定语从句

如题所述

定语从句,就是用来修饰名词或代词的句子,起到定语的作用,所以叫做 定语从句。 定义 被修饰的词叫先行词。定语从句不同于单词作定语的情况,它需要放在被修饰的词(即先行词)之后。定语从句一般由 关系代词来引导。关系代词必须放在定语从句之首。

定语从句(Attributive Clauses)在句中做定语,修饰一个名词或代词,被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后,由关系词(关系代词或关系副词)引出。   关系代词引导的定语从句   关系代词所代替的先行词是人或物的名词或代词,并在句中充当主语、宾语、定语等成分。

关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。 

1、who, whom, that   这些词代替的先行词是人的名词或代词,在从句中所起作用如下:   Is he the man who/that wants to see you?   他就是想见你的人吗?(who/that在从句中作主语)   He is the man whom/ that I saw yesterday.   他就是我昨天见的那个人。(whom/that在从句中作宾语)   

2)、Whose 用来指人或物,(只用作定语, 若指物,它还可以同of which互换), 例如:   They rushed over to help the man whose car had broken down. 那人车坏了,大家都跑过去帮忙。   Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。   

3、which, that   它们所代替的先行词是事物的名词或代词,在从句中可作主语、宾语等,例如:   A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。(which / that在句中作主语)  

The package (which / that) you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)   关系副词引导的定语从句   关系副词可代替的先行词是时间、地点或理由的名词,在从句中作状语。 

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