as与which引导非限定性定语从句用法

首先，as和which都可以表示主句在意义上的连贯，在从句中作主语，或用作及物动词的宾语，如：

一、 as, which 指代整个句子或短语。由 as, which 引导的非限定性定语从句，相当于 and

this 或 and that 。在很多时候，表示说话人对话语的看法或态度，此时它们的先行词并不是具体的某个词，而是整个句子或短语：

He was late for school ， as/which was usual with him ．他上学迟到，这是家常便饭。

He married her， which／as was natural．

I was very helpful to him， which/ as he realized．

二．as含有正如、按照、正像之意，as一般用在肯定句中，而which则多用于含否定意义的句子中，如：

As our teacher points out， that book is of benefit to everyone．

Heat is a form of energy， as is known to all of us．

This machine， as might be expected， has stopped operating．

He failed in the exam again， as was expected．

He failed in the exam again， which was unexpected．（此处不可用 as ）

as 所引导的从句所表达的语意须和主句一致，而 which 则无此限制。

三．as 常与从句中的 know ， see ， hear ， expect 等动词连用，也常用于 as often

happens ， as is often the case （常有的事）等句子中。下列固定结构，一般不能用which，如：

as has been said before 如前所述

as often happens 正像经常发生的那样

as is well known 众所周知

as will be shown in Fig 3 将如图3所示

as we know 正如我们知道的那样＂

as may be imagined 这可以想象得出来

as we all can see 正如我们大家看到的那样

She is the same age as you (are). 她和你年龄一样大。 [ 与 same...as 连用 ] I hope to get such a dictionary as he is using. 我希望有一本和你正在用的一样的词典。 [ 与 such...as 连用 ]

As water is to fish, so air is to man. 正如水对鱼一样重要，空气对于人同样重要。

四．当关系代词代表主句引起的结果，又做主谓宾补（svoc）结构中的主语时，多用which，如：

He saw the girl， which delighted him．

He didn’t＇t pass the exam， which made his mother angry．

五．在从句中作介词宾语时，用which，如：

We didn＇t go to the film， instead of which we went to the theatre．

六．在从句中作定语时，常用which，如：

I told her to see a doctor， which advice she took．

七．在从句中代表主句中的谓语的整个概念时，常用which，如：

He can write a letter in English， which I can not．

八．指代主句中一个名词时，多用which，如：

I gave him an interesting book， which he started to read at once．

九．代替主句中的形容词时，常用which，如：

He thought me impatient， which he himself was．

练习（判断正误）

1．Her performance was wonderful， which we had expected．

2．He told us a joke， which made all of us laugh．

3．As is well known to us all that the earth is round．

4．Metal will bear beating with a hammer， as a stone will not．

5．He was emigrated（移居）in 1948，at which time there was much hardship and unrest．

6．Mum always treats me just like a baby， as I can＇t bear．

7．Lincoln was shot in a theatre， which was described in this book．

8．His children asked him to go for a row with them in the afternoon， which he promised．

9．This book， as is imagined， is very good．

10．Dorothy was always speaking highly of her role in the play， which， of course， made the

others unhappy．

keys： 1．×2．√3．×4．×5．√6．×7．×8．√9．√10．√

合集下载

as 和 which 的区别

as 和 which 都可用作关系代词来引导从句，它们两个到底有什么不同呢，这是同学们经常觉得困惑的地方。下面详细讲讲它们之间的联系和区别，希望能解开大家心中的结。

一、as, which 指代整个句子或短语。

由as, which 引导的非限定性定语从句，相当于and this或and that。在很多时候，表示说话人对话语的看法或态度，此时它们的先行词并不是具体的某个词，而是整个句子或短语：

The Chinese government has decided to develop the west of China, which, I dare

say, will benefit the people there, especially those who are still leading a poor life. 中国政府决定开发西部，我敢说，这将造福于西部的人民，特别是那些至今过着贫穷生活的人。

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

John said he’ d been working in the office for an hour，which was true.

The result of the experiment was very good， which we hadn’t expected.

Carol said the work would be done by October，which personally I doubt very

much.

二、as, which 用在句末的时候，有些情况下可以互换使用。

He was late for school，as/which was usual with him.他上学迟到，这是家常便饭。

as引导定语从句时的用法

①as引导限制性定语从句通常用于the same„as, such„as结构中。

e.g.I want the same shirt as myfriend’s.我要一件跟我朋友一样的衬衫。

Such machines as are used in our workshop are made in China.我们车间使用的这种机器是中国制造的。

②as引导非限制性定语从句既可放在主句之前，也可放在主句之后，用来修饰整个句子。通常用下列句型：

as is known to all,as is said,as is reported,

as is announced,as we all know,as I expect等。

e.g.As I expected,he got the first place again in this mid-term

examination.正如我所预料的那样，他在这次期中考试中又获得了第

as引导非限制性定语从句时与which的区别

①当主句和从句语义一致时，用as；反之，用which来引导非限制性定语从句。e.g.He made along speech,as we expected.

He made along speech,which was unexpected.

②当非限制定语从句为否定时，常用which引导。

e.g.Tom drinks a lot everyday,which his wife doesn’t like at all.

2.关系代词在从句中作主语时，从句的谓语动词单数还是用复数应由先行词决定。

e.g.The man who lives downstairs speaks English fluently.住在楼下的那个人英语说得很流利。

The students who are in GradeThree are going to climb the hill tomorrow.

as的非限制性定语从句

导语：以下是店铺精⼼为⼤家整理的有关as的⾮限制性定语从句的⽰例，希望对⼤家有所帮助，欢迎阅读。

⾮限制性定语从句：

即⾮限定性定语从句，起补充说明作⽤，缺少也不会影响全句的理解，在⾮限定性定语从句的前⾯往往有逗号隔开，如若将⾮限定性定语从句放在句⼦中间，其前后都需要⽤逗号隔开。由as, which 引导的⾮限定性定语从句，as和which可代整个主句，相当于and this或and that。As⼀般放在句⾸，which在句中。

as引导的⾮限制性定语从句

as引出⾮限定性定语从句时，代替整个主句，对其进⾏说明但通常⽤于像as we all know, as it is known, as is known toall, as it is, as is said above, as always mentioned above, as is usual, as is often the case, as is reported in the newspaper等句式中。as在⾮限定性定语从句中作主语、表语或宾语，且引出的'从句位置⽐较灵活，可位于句⾸或句末，也可置于主句中间。通常均由逗号将其与主句隔开。as有“正如……，就像……”之意。

如：As is known to the United States, Mark Twain is a great American writer.

美国⼈都知道，马克·吐温是⼀位伟⼤的美国作家。

（as在从句中作主语）

He is absorbed in work, as he often was.

他正在全神贯注地⼯作，他过去经常这样。

（as在从句中作表语）

As we all know, the earth is round.

众所周知，地球是圆的。

（as在从句中作宾语）

使⽤规则及注意事项：

1、which引导的⾮限定性定语从句是⽤来说明前⾯整个句⼦的情况或主句的某⼀部分。

As引导的定语从句(含配套练习与答案)

====Word行业资料分享--可编辑版本--双击可删====

源-于-网-络-收-集 as与which引导定语从句的用法辨析

定语从句是高一英语的主要语法项目之一，也是高考英语的常考知识点，尤其是as和which引导的定语从句，更是历年高考试题中的考点和热点。as和which都能引导定语从句，那么它们的共同点和区别是什么呢?

一、as和which都能引导的定语从句

当非限定性定语从句置于句末时，as和which都可用来引导这个定语从句。例如：

Dorothy was always speaking highly of her role in the play, _______ , of course, made

the others unhappy. (NMET2000)

A. who B. which C. this D. what

【简析】答案是B。which引导非限定性定语从句，指代前面主句的内容，定语从句部分意为：这当然使别人不高兴。这里不能换用as作引导词，因为我们不能说“正如使别人不高兴”。

The number of senior high school students is increasing, _______ is mentioned

above.

A. that B. it C. such D. as

【简析】答案是D。as引导非限定性定语从句，意思是“正如”。此时也可以换用which引导，但意思有别，意为：这一点上面提到了。

二、只能用which引导的定语从句

1. 在限定性定语从句中。例如：

The project _______ a British businessman has invested in is under construction at

present.

A. which B. as C. what D. why

定语从句中as与which用法异同 (1)

路漫漫其修远兮，吾将上下而求索 - 百度文库

1 定语从句中as 与which用法异同

摘要：定语从句作为高考必考的语法项目之一，受到同学和教师的关注。为了使同学们在高三学习及以后的复习阶段有章可循，不盲目，不失分，本文就定语从句中as和which 的用法作一简单比较。

关键词: as 与which 异同

定语从句在高中语法的学习中是一个难点，也是高考必考的语法项目之一，为了使同学们在高三学习及以后的复习阶段有的放矢，现将定语从句中as和which的用法做一比较，供大家参考。

一、在限定性定语从句中

as 和which 作为关系代词用法有差异：

⑴、as 常与such, the same, as, so等词连用构成定语从句。as 在定语从句中作主语、宾语、表语，这时作宾语的as 不可以省略。as 在从句中指前面提到的人或物。

Such people as (people such as) you describe are rare nowadays.

(你所描述的人现在已很少见了。)

I have the same trouble as you ( have ).

(我和你有同样的困难。)

张道真 1995 实用英语语法［M］北京外语教学与研究出版社（7）：573-574

He is as great a man as ever lived.

注意：①the same ---as 引导的定语从句和the same ---that 引导的定语从句不相同。

the same---as 表示的是“和---一样的”所指的是同一类事物。

the same---that表示的是“如---一样的”所指的是同一个事物。

下面试比较：

I bought the same dictionary as you bought.

（我买了一本和你的一样的词典。）

I met the same person that I saw yesterday.

英语as与which引导非限制性定语从句之区别

英语as与which引导非限制性定语从句之区别：练习题。

这类定语从句只能由which或as引导。两者之间的区别在于：

1. which引导的定语从句只能位于主句后，但as引导的从句可位于主句前、中、后。如：

David, as you know, is a photograopher. (不可用which)

Li Ming is late, as is often the case. (不可用which)

2. as在定语从句中作主语时，从句谓语通常要有be或别的系动词，但which不受此限制。如：

Li Ming was late, which (=and this) made Mr. Zhang very angry. (不可用as)

3. as引导的定语从句只表示一个众所周知或意料之中的事，但which不受此限制。如： He married her, which was unexpected. 他和她结婚了，这是出乎意料的。(不可用as)

4. as有“正如”之意，而which则意为“这(件事，一点)”，可用and this/that/it来代替。

5. as多用于固定搭配中：as is often the case(这是常有的事)，as was expected(不出所料)，as often happens(正如经常发生的那样)，as is known to all(众所周知)，as has

been said before(如上所述)，as is mentioned above(正如上面所提到的)等。

注：which代表整个句子，还可用于in which case, at which point, on which occasion等。如：

I may have to work late, in which case I’ll telephone you.

As的高考知识点归纳

非限制性定语从句及As 的用法例

非限定性定语从句

非限定性定语从句的作用是对所修饰的成分作进一步说明，通常是引导词和先行词之间用逗号隔开，将从句拿掉后其他部分仍可成立

1. which引导的非限定性定语从句来说明前面整个句子的情况或主句的某一部分

2.当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：

Charles Smith, who was my former teacher, retired last year. 查理·史密斯去年退休了，他曾经是我的老师。

My house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。

This novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。

3.非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数，例如：

He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。

Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。

4. 有时as也可用作关系代词

5. 在非限定性定语从句中，不能用关系副词why和关系代词that，而用who,

whom代表人，用which,whose代表事物，如果需要用why，

可用for which代替.；

As 的用法例

1. the same… as；such…as 中的as 是一种固定结构, 和……一样……。

I have got into the same trouble as he (has).

Which+as+引导非限制定语从句的异同点+

Which/ as 引导非限制定语从句的异同点

1相同点

(1) which/as在非限制定语从句中作主语时，且谓语为系表结构时，二者可互换

eg:He didn’t go to school yesterday, which / as was strange.

(2) which/ as 在非限制定语从句中做宾语时，二者可互换

eg:This elephant is like a snake, as/ which anyone can see.

Peter studies hard, as/ which we all know.

(3)which/ as在非限制定语从句中作表语时（此时as/which代表的是主句的表语）

eg:These ideas seem strange, as/which in fact they are.

The meeting is very important to us, as/ which indeed it is.

2 which / as的不同点

（1） as引导的非限制定语从句可以放在句首，句中和句尾，而 which引导的非限制定语从句通常放在句末，不能放在句首。

eg:As we all know, getting up early is very helpful.

As everyone knows, the population of China is the largest in the world.

If you go along the street to the end, as I tell you to do, you’ll find the hospital.

(3) 当非限制定语从句中谓语是 say, know, imagine, expect, show, point, report, announce, suppose 以及这些动词的被动式时，用as。常见的结构有

中考英语语法详解：as与which的用法区别 (2).doc

2017年中考英语语法详解：as与which的用法区别

【英语语法】

引导非限制性定语从句时，有时两者可互换。如：

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

1. 通常要用as的场合

①当从句位于主句前面时，只用 as。如：

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。

②用于such, as, the same后引导限制性定语从句时，只能用as。如：

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

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

2. 两者的细微区别

①as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。如：

He went abroad, as was expected. 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)

②as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。如：

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)

③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。如：

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

as的用法

as连词用法

as与which引导定语从句的用法辨析

一、as和which都能引导的定语从句

当非限定性定语从句置于句末时，as和which都可用来引导这个定语从句。例如：

Dorothy was always speaking highly of her role in the play, _______ , of

course, made the others unhappy. (NMET2000)

A. who B. which C. this D. what

The number of senior high school students is increasing, _______ is

mentioned above.