as或which引导非限定性定语从句
但下列情况下as和which一般不能互换： 1．as既可以指前面提到过的事实或情况，因此as可以放在句首、句末， 也可以插入主句中，而which指前面提到的事实或情况，一般放在主句之后 （有时也可用as），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． 2．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： He failed in the exam again， as was expected． He failed in the exam again， which was unexpected．
5．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 pass the exam， which made his mother angry． 6．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． 7．在从句中作定语时，常用which，如： I told her to see a doctor， which advice she took． 8．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．
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．√
Байду номын сангаас
3．当定语从句所修饰的主句内容是谓语动词的对象时，常用as，如： Jack was admitted into the university， as we had expected． 4．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
9．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． 10．代替主句中的形容词时，常用which，如： He thought me impatient， which he himself was． 跟踪练习（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．
as与which引导非限定性定语从句用法浅谈
从历年的NMET试题来看，定语从句是必考的语法项目之一。 特别是遇到as和which引导 非限定性定语从句的题目，同学们更是束手无策，笔者在平时 的教学中，收集了一些这方面的材料，为了便于掌握运用，现将 其用法试作总结归纳并举例加以说明。 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， He married her， which／as was natural． I was very useful to him， which as he realized．
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。
高中英语一轮复习语法专题：as和which引导非限制性定语从句的区别专练
高中英语一轮复习语法专题：as和which引导非限制性定语从句的区别专练一、单选题1.—Hello, is Mr. Smith in?—Sorry, there is ______person ______ you referred to in my office.A. such no; thatB. such no; whomC. no such; whoD. no such; as2.Shenzhou I, ________ many of you are old enough to remember, was launched in November, 1999.A. whatB. thatC. asD. one3.____is known to all, good friends _________ happiness and value to life.A. It; addB. As; addC. It; add upD. As; add tost night I saw a film, _____ was about the wild animals.A. whichB. thatC. whoD. whom5.（2015·浙江）Creating an atmosphere ________ employees feel part of a team is a big challenge.A. asB. whoseC. in whichD. at which6.（2015·湖南）It is a truly delightful place, ________ looks the same as it must have done 100 years ago with its winding streets and pretty cottages.A. asB. whereC. thatD. which7.The air quality in the city, ________ is shown in the report, has improved over the past two months.A. itB. thatC. whichD. as8.______ is often the case with children, Amy was better by the time the doctor arrived.A. ItB. ThatC. WhatD. As9.__________ has already been pointed out, grammar is not a set of dead rules.A. ItB. WhichC. AsD. What10.___________ is known to everyone, the moon travels round the earth once every month.A. ItB. AsC. ThatD. What11.（2015.江苏）The number of smokers, _____ is reported, has dropped by 17 percent in just one year.A. itB. whichC. whatD. as12.__________ is known to us, the PRC was founded on October 1, 1949.A. ItB. AsC. ThatD. What13.____is known to us all, April 14, 2010 was the day when Yushu earthquake happened.A. WhichB. AsC. ThatD. Who14.________ is mentioned above, the number of the students in senior school is increasing.A. WhichB. AsC. ThatD. It15.— Dad, let's go white—water rafting!— Ok. But equip yourself first. It is not such an easy job _____it looks.A. asB. whichC. thatD. what16.They have finished the work by themselves, ________ I told you.A. whatB. asC. thatD. when17.My grandfather is fond of talking about the good old days, ___ is often the case with old people.A. whichB. whenC. asD. it18._____ we all know, the Amber Room was missing.A. AsB. ItC. WhichD. That19.There is no simple answer, _____ is often the case in science.A. asB. thatC. whenD. where20.Do not talk about such things ________ you do not understand.A. thatB. whichC. asD. where21.I want to use the same tools________ used in your factory a few days ago.A. as wasB. which wereC. as wereD. which22.Due to the rising rents, the new graduate has decided to leave Beijing for his hometown, have many other classmates.A. soB. asC. whichD. nor23.He is such a person always helps others without claiming a reward, makes him popular in the community.A. that; thatB. that; whichC. which; whichD. as; which24.He is good at English, we all know.A. thatB. asC. whomD. which25.A lot of language learning, has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.A. asB. itC. whichD. this二、语法填空26.The number of smokers, ________is reported, has dropped by 17 percent in just one year.27.There is no simple answer, ________ is often the case in science.28.________ was reported in the paper, no people died in the accident.29.________ is shown in the story, she is very clever.30.The sun heats the earth, ________makes it possible for plants to grow.31.Don't talk about such things________you are not sure of.32.He changed his mind again, ________ made us all angry.33.________ is often the case, she arrived at the school first.34.________ we all know, Mo Yan is a famous writer.35.There is a net bar around here, ________ I remember.答案解析部分一、单选题1.【答案】D【解析】【分析】句意：—你好，Smith先生在吗？—抱歉，在我们办公室里没有你说的这样一个人。
高中英语定语从句 --- As 和which 引导定语从句精讲精练
关系代词as和which 引导的定语从句as和which引导非限制性定语从句，有相同之处也有不同之处。
具体情况是：1. As和which都可以在定语从句中做主语或者宾语，代表前面整个句子。
He was honest, as/which we can see.as 引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以切割一个主句；which引导的非限制性定语从句只能放在主句之后。
另外，as有“正如……，正像……”的意思which 指代整个句子不可置于句首只能位于主句后。
1. They d idn’t come to school on time, which made the teacher angry.2. The sports meeting was put off, which astonished (吃惊）us greatly.3. His father died last year, which made it impossible for him to go to school.4. He didn’t pass the exam, which disappointed his parents.as 引导定语从句，位置灵活，可位于句首、句中和句末。
As we all know, China is a developing country.The number of the visitors, as we had expected, was over 200.China is a great country with a long history, a s is known to all.注意:当主句和从句存在逻辑上的因果关系时,主句与从句有因果或并列，从句谓语动词是“系动词+adj" 使用whichOur class has won the volleyball match, which is inspiring.Tom suddenly fell ill, which made us sad. Tom突然病倒，这使得我们很伤心。
as引导定语从句
as引导定语从句引导定语从句的关系代词有who, whom, whose, which, that；关系副词有where, when, why，如何确定定语从句的引导词。
下面是店铺为你带来的as引导定语从句，欢迎阅读。
As 引导的定从as引导的定从很多人不是很熟悉，我们下面专题讲解。
在定从中，as 是关系代词，在从句作主语或宾语。
1 限制性定从（只用在固定结构中）(1) such +N+as….Such inns as there were were generally dirty and flea-ridden.（as 作主语）=There were inns and inns were generally dirty and flea-ridden.那有一些小旅馆，旅馆通常很脏而且布满跳蚤。
Such people as are indolent are not easy to make their goals a reality.懒惰的人不容易实现目标。
These are such points as they discussed at the meeting.这些是他们在会上讨论的观点。
(2) as +adj +N +as +…You should drink as much water as is required. （第二个as 作主语）你应该尽可能多的喝被要求喝的水。
You’d better make as few mistakes as we did.（第二个as作宾语，引导定从）你应该尽可能少犯我们犯过的错误。
(3) the same +N +as…He uses the same book as I bought.他平时用的书和我之前买的那本一样。
He uses the same book that I bought.他平时用的书就是我之前买的那本。
2 as 引导非限制性定从要点：as引导定语从句的.先行词是一句话。
as引导的非限制性定语从句
t((as 引导的非限制性定语从句：1： as 引导限定性定语从句，常用于以下句式，其中关系代词在从句中担当主，宾，表语： ① so/as/such+名词+as …像……一样的，像……之类 :We have found such materials as are used in their factory.These houses are sold at such a low price as people expected. (00 上海)This book is not such as I expect.Such things as you described are rare now. (四校联考)He isn ’such a man as you described. He is such a lazy man as nobody wants to work with (成都诊断)=he is such a lazy man that nobody wants to work with him.I want to have such a dictionary as he has.I have bought such a watch as was advertised on TV.Mount Wuyi is such an attractive place of interest as everyone likes to visit. 福建质检) Such money as he earned was spent on spirits and tobacco.He was not half such a coward as we took him for.② the same +名词+as 和……同样的 :He is not the same man as he was /used to be.The west is not the same as it was 20 years ago.I like the same book as you do .I shall do it in the same way as you did.This is the same pen as I lost yesterday.Is this the same mosquito as bit you just now?2: as 引导的非限定性定语从句，指代整个主句的内容，但不同于 which 的是，它引导的定语从句既可以位于主句的前面，也可以位于主句的后面。
非限制性定语从句解析
非限制性定语从句解析非限制性定语从句解析下面是店铺收集整理的非限制性定语从句解析，希望对您有所帮助!如果你觉得不错的话,欢迎分享!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。
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。
2、as有时也可用作关系代词。
as引导非限制性定语从句，若as在从句中作主语，其引导的句子可以放在句首，也可以放在句中。
但which引导的非限制性定语从句只能放句中。
例句：As is reported in the newspaper, some artistic treasures (艺术珍品) will be on show at the exhibition on the weekend.3、在非限定性定语从句中，关系词不能用that。
限制性定语从句和非限制性定语从句有四大区别：1在句中作用不同限制性定语从句对被修饰的先行词有限定制约作用，使该词的含义更具体，更明确。
限制性定语从句不能被省略，否则句意就不完整。
非限制性定语从句与先行词关系不十分密切，只是对其作一些附加说明，不起限定制约作用。
如果将非限制性定语从句省去，主句的意义仍然完整。
2外在表现形式不同限制性定语从句因与先行词关系密切，所以不可以用逗号将其与主句隔开;而非限制性定语从句与先行词关系不十分密切，所以可用逗号将其与主句隔开。
例1.Do you remember the girl who taught us English?你还记得教我们的那个女孩吗?例2.Clock is a kind of instrument which can tell people time.钟是一种能够告诉人们时间的仪器。
高一英语非限定性定语从句特殊引导词单选题50题答案解析版
高一英语非限定性定语从句特殊引导词单选题50题答案解析版1.He is very popular among his students, as is often the case.A.asB.whichC.thatD.what答案：A。
本题考查as 和which 引导非限定性定语从句的区别。
as 引导非限定性定语从句，可放在句首、句中或句末，且有“正如……”之意；which 引导非限定性定语从句只能放在句中或句末，没有“正如……”之意。
本题中as 引导的非限定性定语从句放在句末，有“正如……”之意，所以选A。
B 选项which 没有此意；C 选项that 不能引导非限定性定语从句；D 选项what 不能引导定语从句。
2.The book, which was written by a famous author, is very popular.A.asB.whichC.thatD.what答案：B。
本题考查as 和which 引导非限定性定语从句的区别。
which 引导非限定性定语从句，可指代前面整个句子，在本题中指代“这本书是一位著名作家写的”这件事，所以选B。
A 选项as 虽然也可引导非限定性定语从句，但在此处没有“正如……”之意；C 选项that 不能引导非限定性定语从句；D 选项what 不能引导定语从句。
3.As we all know, the earth is round.A.asB.whichC.thatD.what答案：A。
本题考查as 和which 引导非限定性定语从句的区别。
as 引导非限定性定语从句，可放在句首，有“正如……”之意，所以选A。
B 选项which 引导非限定性定语从句不能放在句首；C 选项that 不能引导非限定性定语从句；D 选项what 不能引导定语从句。
4.The old man has two sons, both of which are doctors.A.asB.whichC.thatD.what答案：B。
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).例2. as可引导非限制性从句，常带有'正如'。
as_which引导定语从句
改错 that/ which 1. I’m going to work in the hospital where needs me. 2.This is the place where I once lived there. 3.This is the factory which I worked ten years ago.
4) Bamboo is hollow, ____ B made it very light. A. as B. which C. that D. so
5) The Chinese government has decided to develop the west of C China, _____,I dare say, will benefit the people there, especially those who are still leading a poor life. A.What B. whatever C.which D. as 6) He said she could speak 4 foreign A languages,____ is not true. A. which B. as C. it D. that
it为形式主语,that引导主语从句
What that ______ is known to all is _________the earth is round. what引导主语从句, that引导表语从句
B has been announc final exams next month.(上海2003春） A. That B. As C. It D. What
对比训练
1. It is so difficult a question ____ A no one can solve it. B no one 2. It is so difficult a question ____ can solve. A. that B. as B is announced, the meeting was put 1. ____ off. 2. ____ A is announced that the meeting was put off. A. It B. As
非限制性定语从句关系词有哪些范文一份
非限制性定语从句关系词有哪些范文一份非限制性定语从句关系词有哪些 1as,which引导非限定性定语从句由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。
例如：1、As weknow, smoking is harmful to one's health.如我们所知，吸烟有害健康。
2、The sunheats the earth, which is very important to us.太阳使地球暖起来，这对我们人类很重要。
【特别提示】as和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以做主语和宾语。
但不同之处主要有两点：1、as 引导的定语从句可置于句首，而which不可。
2、as 代表前面的整个主句并在从句中做主语时，从句中的.谓语必须是系动词；若为行为动词，则从句中的关系代词只能用which。
非限定性定语从句分类who引导Our guide，who was a French Canadian，was an excellent cook.我们的向导，一个法裔加拿大人，是一位优秀的厨师。
My gardener，who is very pessimistic，says that there will be no apples this year.我家的园丁非常悲观，他说今年将不结苹果。
whom引导关系代词whom用于指人，在句中作动词宾语和介词宾语，作介词宾语时，介词可位于句首。
如：Peter, whom you met in London, is now back in Paris.彼得现在回巴黎了，你在伦敦见过他。
Mr Smith，from whom I have learned a lot，is a famous scientist.史密斯先生是一位著名的科学家，我从他那儿学了许多东西。