真知即所以为行,不行不足谓之知。

【定语从句】非限定性定语从句

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很好用。

是定语从句的一种变相的形式,也能起到修饰名词的作用。

the beautiful mother

John’s mother

John’s beautiful mother

有的定语(beautiful)起不到真正限定的作用,而

John’s 却可以限定住

所以定语有两种,一种可以把名词的缩小到一定范围,而另外一种只是补充说明

限定定语:缩小范围,必要

非限定定语 不缩小范围,不必要

 
 

非限定性定语从句-基础

1、格式:,who/which(不能用that)(打逗号隔开一下,表示关系没那么紧密)

2、定语从句没有缩小名词的范围,去掉不影响理解。


(定语从句前面的名词是唯一的,不需要缩小范围。)

例子:

Yesterday I met my girlfriend who live across the street.花心大萝卜,女朋友不唯一

Yesterday I met my girlfriend,who live across the street.定语从句前面的名词已经是唯一

两句话虽然只差别一个逗号,其实差别非常大

 
 

David Beckham

David Beckham who modeled for a clothing company has earned quite a lot of money.(没打逗号,不唯一)

David Beckham,who modeled for a clothing company has earned quite a lot of money.

定语从句前面的名词已经唯一的情况,一定要打逗号,否则歧义!!!

要不要打逗号,先判断下定语从句的名词是否是唯一的。

 
 

The man who live in this house has not been seen for days.(不唯一)

The mayor,who live in this house,has not been seen for days.(市长是唯一的,要打逗号

 
 

 
 

Collin told me about his new job that he’s enjoying very much.(错误)

Collin told me about his new job,which he’s enjoying very much.(新工作,单数,唯一)

 
 

I have two office.The office I’m using at the moment is very small.(正确)

Ben’s father that used to be a teacher now works for a TV company.(错误)

Ben’s father,who used to be a teacher now works for a TV company.

 
 

非限定性定语从句-提升

which 可以代指前面的整句话

 
 

She is extraordinarily beautiful,which makes her roommate envy her.

“which”代指前面的整句话,(她非常漂亮)这件事情让她的室友嫉妒她。

We ran out of money,which didn’t bother me a lot.

(我没钱了)这件事情没有很困扰我。

定语从句没有指的是名词了,指的是整句话,这是可以的,要用逗号“,+which”

 
 

as
(也可以引导定语从句)

1、可以放句首或居中(句中可以用which代替

2、代指整个句子

1、As sb say(says)

2、As is said

3、As we all know

4、As is known to all

5、As I have told you

像…一样

As we all know,the whale is not a fish but a mammal.|像我们所知道的那样,金鱼不是鱼,但是是哺乳动物)

=The whale is not a fish but a mammal,as we all know.

=The whale is not a fish but a mammal,which we all know.

 
 

As is known to us all,the whale is not a fish but a mammal.

=The whale is not a fish but a mammal,as is known to all.

=The whale is not a fish but a mammal,which is known to all.


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未经允许不得转载:Living in the flow » 【定语从句】非限定性定语从句

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