as和which在非限制性定语从句中的区别
as和which在非限制性定语从句中的区别作者：王艳霞
来源：《新课程·教师》2010年第10期
在非限制性定语从句中as和which是经常使用的关系代词,他们都可以指代整个主句,相当于and this或and that,但它们还是有各自的使用规则,有所区别。
一、从意义上看,as一般指代人们日常生活中都知道的常识性的东西,因而常被译成“正如”;而which代指前面主句的内容,意为“这一点”。
二、从位置上看,as引导的非限制性定语从句,既可放在主句前又可置于主句后,有时还可插入主句中,而which引导的非限制性定语从句只能置于主句之后。
例如:
The weather turned out to be very good,which was more than we could expect.
结果天气非常好,这一点我们没有料到。
As is known to everybody, the moon travels round the earth once every month.
The moon travels round the earth once every month,as/which is known to everybody.
众所周知,月亮每月绕地球转一次。
三、当定语从句放在主句后面时,一般用as和which都可以,但也不总是这样,例如:
1.当非限制性定语从句是否定句或表示否定意思时只能用which。
如:
He came here very late,which was unexpected(not expected).
他迟到了,这是意料之外的。
2.当as在从句中作主语时,后面常接动词的被动语态,如be known、be said、be reported、be announced等。
如果从句是主动语态,一般用which作主语,如:She has been absent again,as is expected.
她又缺席了,这在意料之中。
Tom has made rapid progress,which makes me very happy.
Tom进步很快,这让我很高兴。
3.as多用于这些习惯用语中:
As anybody can see正如人人都能看到的那样。
As is well-known=as is known to all众所周知。
As we had expected正如我们所预料的那样。
As (it) often happens正如经常发生的那样。
As has been said before如上所述。
As is mentioned above正如上面提到的。
As I remember (it)如我所记的。
As I understand(it)正如所看上去的。
which与as引导非限制性定语从句的异同
which与as引导非限制性定语从句的异同which与as一样,都可以引导非限制性定语从句,它们既有相同之处,也有差别。
因此在实际运用中容易混淆。
它们的某些用法在高考中也会考查。
一.相同点。
两者引导非限制性定语从句时,可指代主句中的部分或整个句子的内容,在从句中做主语,宾语或表语,位于主句之后有时可互换。
The meeting was put off, as /which was exactly what we wanted.He was a doctor, as/which I knew from his manner.二.不同点1. as可指其前后主句提到的事实或情况,因此引导的非限制性从句位置比较灵活,which可以放在主句前后,也可插入主句之中;而which 引导的非限制性从句只能位于主句之后。
As is known to all, fish can’t live without water.Air, as we know, is gas.2.在非限制性从句中,which后的be动词不可省;as而后的be动词可以省略。
She told me she won the match , which was a lie.The material is elastic, as (was) shown in the figure.3. which在非限制性定语从句做主语时可用各类动词做谓语;而在非限制性定语从句做主语时,谓语常用连系动词,如be, seem, become 等,一般不用其他行为动词。
He saw the girl, which delighted him.He didn’t say anything at the m eeting , as/which seemed very strange. 4. 如果主句中叙述的事情与从句所涉及的意向一致,多用as,用以对主句的意义进行补充;如果不一致,就用whichShe has married again, as was expected.He broke the rules again, which was unexpected.5.如表示“如同。
非限制性定语从句which和as的用法汇总一篇
非限制性定语从句which和as的用法汇总一篇非限制性定语从句which和as的用法 1非限制性定语从句which和as的用法一、相同之处当从句位于主句之后，引导词指代整个主句所表达的全部意义时，as 和which可以互换。
如：The elephant is like a snake,as/which everybody can see.大家都看得出，这头大象像条蛇。
A big earthquake occurred there last night,as/which was reported on TV.据电视报道，昨夜那里发生了大地震。
She is from Shanghai,as/which I know from her accent.她来自上海，那是我从她的口音知道的。
二、不同之处1、as引导非限制性定语从句时，位置比较灵活，可位于主句之前，也可位于主句之中或之后;而which引导非限制定语从句只能位于主句之后，不能位于主句之前。
如：_______ is known to everybody,the moon travels round the earth.A.ItB.AsC.ThatD.Which答案：B_______ is mentioned above,the number of the students in senior highschools is increasing.A.WhichB.AsC.ThatD.It答案：BAir,as we know,is a gas.众所周知，空气是一种气体。
He is very careful,as his work shows.他的工作表现表明他非常谨慎。
as引导非限制性定语从句常有“如同.那样”的含义，因此在一些固定结构中，如：as we know;as is known to all(众所周知)as we all can see(正如我们大家都能看到的那样)as has been said before/above(正如前面所述)as might be imagined(可以想象得到)as might be expected(正如所预料的那样)as is often the case(情况通常是这样)以上种种固定搭配，一般不能用which代替as。
高一英语as与which引导的定语从句区别课件(共15张PPT)-经典通用课件资料
4、缩放时，按Shift键及鼠标点图片选框的角部，避免变形 5、胶片尽量使用此图库，使公司资料风格统一
常用字列表 Thanks
作图元素
小区、业务平台等的表示图标，上面放终端或产品示意图
生词…短语…句型
Unit 1
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图库用法指导
1、此图标库在色彩方面大致分为鲜亮色(符号及元素)和沉稳色(各终端及实物场景)，使 用时，注意鲜亮色和沉稳色要平衡，画面不要全是鲜亮色或者全是沉稳色。
2、由于各终端及实物场景的颜色是沉稳色，所以连接它们的组网线要粗一些、颜色可 以鲜一些，以产生对比，求得视觉平衡。
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(5) 当非限制性定语从句的引导词前面有介词时，只能用which, 而不可用 as。如： He has a new computer, for which he paid nearly ten thousand yuan. 他有一台新电脑，这台电脑花了
他将近一万元。
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(6) 当关系代词代替主句中的宾语从句或复合结构(如：宾+补；不定式短语；动词-ing形式短语等) 时，一般只能用 which, 而不用 as。如：
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(9) 当关系代词仅代表主句中单个的名词时，一般只用which, 而不用as。如： He sent me a beautiful present, which I valued very much. 他给寄来了一件精美的礼物，我对它非常珍视。
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(10) as 在非限制性定语从句中，还常跟such连用。如： There was a look of love in the teacher’s eyes, such as mothers have for their children. 老师眼里
定语从句中关系代词as与which的用法
学法新探关系代词as与which在定语从句中有时可以相互替换，但又有不同之处，稍不留心，极易使用不当，出现差错。
对此，笔者剖析了关系代词as与which在定语从句中的用法，以期能够帮助同学们准确把握和运用。
一、关系代词as与which在限制性定语从句中的用法关系代词as、which均可以用于限制性定语从句中，有时可以相互替换，但两者仍有着一定的差异，具体体现在：（1）当定语从句中的先行词为某物，且先行词前面有so,such,the same，as many/much等修饰语时，则只能用as引导限制性定语从句，不能用which引导。
比如：①It’s the same book as I bought yesterday.这本书和我昨天买的一样。
（不能用which代替as）②HongKong is so prosperous a city as is referred to as a shop-ping paradise.香港是一个繁荣的城市，被称为购物天堂。
(不能用which代替as)③These housed are sold atsuch a low price as people expected.这些房子按人们预料的那样低价出售了。
(不能用which代替as)（2）当先行词是表示某物的名词或代词时，且在从句中又做介词宾语时，则不可以用as引导限制性定语从句，只能用which引导限制性定语从句。
如：①Thisis the good car on which I spent all my money.这是我花了所有钱买的那辆好车。
（不能用as代替which）③This is the knife with which we cut the bread.这是我们切面包用的刀。
（不能用as代替which）③There is amountain of which the top is always covered with snow.有一座山顶总是覆盖着雪的山。
as和which引导定语从句的区别
as和which引导定语从句的区别as和which引导定语从句的区别导语：As 和which都可以引导非限定性定语从句，在用法上有一些区别。
欢迎阅读！1.as 和which都可以在定语从句中作主语，宾语，既可修饰一个词也可修饰前面的整个句子。
A.She accepted his proposal, as(which)was natural.她接受了她的求婚，这是自然而然的。
B.The boy is pretty handsome, as(which)we can see in our classroom.这个男孩非常的帅气，正如我们在教室看到。
2.as 在非限定性定语从句中的使用2.1 as可以放在主句之前，主句之后，也可以放在句中，可以说位置很灵活。
但是which常用在主句之后A.As we know,technology just like a engine to push the development of economics.众所周知，技术就像是引擎推动着经济的'发展。
B.The diva,as you know, is famous throughoutthe world.这个女歌剧演唱家，正如你知道的，在全世界都出名。
C.He has stood her up, which I don`t believe.他没有赴约，这事我不相信。
2.2 as与the same，such 连用时，用as。
A.This is the same phone as I have borrowed from my sister.这个手机和我向我姐姐借的一样。
B.I have never had such a chance to make a speech as I always imagined.我从没有这样一个机会去演讲，正如我一直想象的那样。
2.3在从句中谓语动词为被动语态，缺少主语时用as，不用which。
as引导定语从句与which
as引导定语从句与whichas引导定语从句与whichas引导定语从句与which关系代词as与which引导的非限制性定语从句，其先行词都可以是整个主句，指代主句的整个意思。
但as和which具有不同的词义、句法和用法。
1. as引导的从句表示说话人的看法、态度、解释或评论引导定语从句时，as仍具有正如，像，由可知等意思，翻译时有时可不必译出。
as定语从句常含有这些动词：see, know, hear, watch, remember, say, tell, show, expect, guess等，这类动词与as连用几乎成了一种固定搭配。
as引导的此类从句可以置于句首、句中或句尾。
如：The famous magician Liu Qian, as we all know, is from Taiwan. 众所周知，著名魔术师刘谦是台湾人。
There is a net bar around here, as I remember. 我记得这儿附近有一家网吧。
As is often the case, girls like dolls while boys like guns. 女孩子喜欢玩具而男孩子喜欢枪，这是常见的情况。
2. which引导的从句对主句所叙述的`事情进行补充说明，表明事物的状态或结果which此时指前面主句所提到的这件事，常译为这一点，这件事等。
这时它所引导的从句与主句之间常含有并列、因果关系。
注意，它引导的从句不像as那样位置灵活，它只能位于主句的后面。
练习题：1）Alice received an invitation from her boss, ___came as a surprise.A. itB. thatC. whichD. he答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后句成为句子，两个独立的句子不能单以逗号连接。
as和which引导非限制性定语从句的区别
as 和which引导非限制性定语从句的区别1，as引导的非限制性定语从句，位置灵活，可以置于主句的句首、句中或句末；先行词不可是一个词，必须是整个主句或主句的部分内容；有“正如、像”等意思，表依据、评论（、态度、看法）等；如：This elephant is like a snake，as anybody can see．像任何人都能看见那样，这头象像条蛇。
He failed in the exam, as we had expected.Tom has passed the test, as everybody knows. 正如每个人所了解的那样，汤姆通过了考试。
【比较：Bamboo is hollow，which makes it very light．竹子是空的，这就使得它很轻。
】常用以下谓语动词的主、被动语态：know, see, say, expect, imagine, hope, believe, announce, suggest, report, point out…, 例：主动（做宾）：as we all know, as you know, as everybody knows; as you see, as we can see, as we have seen, as anybody can see; as was expected; as we can imagine, as we have imagined…As we all know, the earth is round.He was a foreigner, as I know from his accent.Mike, as we expected, attended the meeting．像我们所期望的那样，迈克参加了会议。
被动（做主）：as is known to everybody, as is known to all; as has been expected; as is often the case (with …)，as has been pointed out, as is usual with, as is reported in the newspaper…He is an honest man, as is known to all.As is often the case with young people, he was overconfident.He wasn't unconscious，as could be judged from his eyes．他并未失去知觉，这从他的眼神可以判断出来。
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1．as做关系代词，引导非限制性定语从句2．as引导非限制性定语从句时，指代逗号前的整个句子（即先行词），常翻译为“正如，正像”，可置于句首或句末。
定语从句中as和which的区别
定语从句中as和which的区别作者：王铮来源：《外语学法教法研究》2009年第06期一、在限制性定语从句中在such或 the same之后常用as 作为关系代词引导定语从句,不用which。
such, the same与as 搭配使用,as充当定语从句的主语或宾语。
1.Have you read such a book as I bought yesterday? (as作宾语)2.Such tourists as know Guilin think its scenery is superb. (作主语)3.I once ran into the same trouble as you did years ago. (作宾语)另外,the same 之后也可以跟that 引导的定语从句表同一关系。
He has been admitted to the same university that his brother studies in.二、在非限制性定语从句中(一)as可用在句首或句中,而 which 引导的定语从句只用在句中。
1.As the world know, China successfully hosted the 29th Olympic Games in 2008.2.The engineer was suddenly kidnapped, which surprised his college.3.If Ken comes late, as is usual for another time, we will not receive him any more.(二)which用作关系代词,可用来代指上文某个词也可以代指上文的整个句子,而 as只用来代指整个句子。
1.As was announced, only one of the participants passed the test.2.The manager held a meeting, which lasted two hours.(三)在which引导的定语从句中,谓语动词若是am/is/are则这些系动词不能省略;而若是as 引导的定语从句,则系动词可以省略。
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as we all know 众所周知as is will knownas has been said 正如所说的那样as was expected 正如所预料的那样as was reported 正如报道的那样As is known to all, Taiwan is part of china.Einstein, as we know, is a famous scientist.Taiwan, as is known to all, belongs to china.(3) 在非限制定语从句中，如果结构为主+谓+宾+宾补时，作主语及宾语宜用which 而不用 aseg:He changed his mind, which made me angry.He believed in God, which I find strange.She often reads English in the early morning, which we think important.(4) 如果非限制定语从句的结构是主+谓+宾语时，且关系代词作从句的主语时，只能用whicheg:Her mother was ill yesterday, which stopped her from going to school.The boy got a full ask for English, which pleased his parents a lot.(5) as引导的非限制定语从句，通常用在表示肯定意义的从句中，而不能用在表示否定意义的从句中。