[图文]【语法教程】限制性定语从句和非限制性定语从句
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【语法教程】限制性定语从句和非限制性定语从句
作者:admin    英语语法来源:本站原创    点击数:373    更新时间:2015/11/23

限制性定语从句和非限制性定语从句

        根据定语从句在句中所起的作用,可分为限制性定语从句和非限制性定语从句两大类。

一、限制性定语从句

限制性定语从句是先行词在意义上不可缺少的定语,用于修饰和限定先行词。如果去掉,主句的意思就不完整或失去意义。书写时不用逗号与先行词分开。

This is the boy who broke the window.

这就是打破窗子的孩子。(the boy是先行词,who broke the indow是限制性定语从句,明确指出the boy是打破窗子的那个孩子)

I have a book which teaches English grammar.

我有一本讲解英语语法的书。(a book是先行词,which teaches English grammar是限制性定语从句,修饰the book

The people whom you met in the hall are from Japan.

你在大厅见到的那些人来自日本。(定语从句whom you met in the hall定先行词the people

二、非限制性定语从句

非限制性定语从句在意义上只是一个附加修饰语,对先行词或主句作些附加的说明。如果去掉,主句的意思仍然清楚。书写时往往用逗号与先行词分开。

I, who am your friend, will share the work with you.

我是你的朋友,将与你分担这项工作。(I是先行词,who am your friend是非限制性定语从句,对先行词I起附加说明的作用)

New Concept English is intended for foreign students, which is known to us all.

新概念英语是专为外国学生编写的,这是我们大家都知道的。(which is known to us all是非限制性定语从句,对主句作进一步的补充说明)

三、在下列情况下,通常使用非限制性定语从句。

1、当先行词表示的是世界上独一无二的人或物时。

The sun, which gives us light and heat, is a fixed star. 太阳是一颗恒星,它给我们光和热。

Last year I visited the People's Great Hall, where many important meetings are held every year. 去年我参观了人民大会堂,每年许多重要会议都要在那里举行。

2、当定语从句修饰整个主句时。

Taiwan belongs to China, as everyone knows. 众所周知,台湾属于中国的领土。

The weather was very terrible, which we hadn't expected. 天气非常糟糕,这点们没有料到。

3、当先行词是专有名词,或先行词本身指示意义十分明确时。

Mr. Joe lives in Beijing now, which is quite a long way from here.

先生现在住在北京,那里距离这儿很远。

I congratulate my neighbour, whose son has just won the election.

我祝贺我的邻居,他的儿子刚刚赢得选举。

四、关系代词aswhich的用法区别

1、引导限制性定语从句时,在such, as, the same后只能用as,其他情况用 which

I never heard such stories as he tells. 我从未听过他讲那样的故事。

It’s the same story as I heard yesterday. 这故事跟我昨天听到的一样。

This is the photo which shows my house. 这张照片拍的是我的住宅。

2、引导非限制性定语从句时,有时两者可互换。

I live a long way from work, as /which you know. 我住得离工作单位很远,这你是知道的。

3、但在,在以下情况引导非限制性定语从句时,两者不可换用。

1)当从句位于主句前面时,只能用 as

As is known to everybody, the moon travels round the earth once every month.

月球每月绕地球转一周,这是每个人都清楚的。

2as 引导的非限制性定语从句应与主句在意义上和谐一致,which无此限制。

He went abroad, as [which] was expected.

他出国了,这是大家预料到的。他出国了,这是大家预料到的。

He went abroad, which was unexpected. 他出国了,这让大家感到很意外。(不用as)

3as 引导非限制性定语从句时,先行词通常不能是主句中某个具体的词,而应是整个句子、整个短语或某个短语推断出来的概念,而which 则无此限制。

The river, which flows through London, is called the Thames. 这条流经伦敦的河叫泰晤士河。(不用as)

4)当as 引导非限制性定语从句作主语时,其谓语通常应是连系动词,而不宜是其他动词,而 which则无此限制。

She has married again, as /which seemed natural. 她又结婚了,这似乎很自然。

She has married again, which delighted us. 她又结婚了,这使我们很高兴。(不用as)

 

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