as与which引导定语从句的用法辨析
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。
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。
which和as的用法归纳及比较
which 和as 的用法归纳及比较一、which 引导名词从句的用法比较which 作为连接代词，可以引导名词从句，作为连接代词，可以引导名词从句，在从句中作主语、宾语、定语或表语等语法成分。
that 在引导名词从句时，只起连接主句和从句的作用，其本身没有任何含义，不翻译。
例如：译。
例如：（1）Which is better depends on these two clothes’ quality.（2）That Tony can’t swim is unbelievable.（3）I don’t know w I don’t know which I should choosehich I should choose ，because the red andthe yellow are both beautiful.（4）I think that you can do it better.从例句中我们可以看到，which 和that 都可以引导主语从句和宾语从句，但是在（1）句和（3）句中which 在从句中分别作了主语和宾语成分，而在（2）句和（4）句中that 在从句中不作任何成分，只起到连接主句和从句的作用。
从句中不作任何成分，只起到连接主句和从句的作用。
二、which 引导定语从句的用法比较which 作为关系代词，可以引导定语从句，在从句中可以代替物作主语和宾语等语法成分。
例如：分。
例如：（5）This is the book which/that I bought last week.（6）The clothes ，which are over there ，seem to have a goodquality.从（5）句和（6）句中我们可以看到which 可以引导限制性和非限制性定语从句，并分别在句中作宾语和主语成分。
一般情况下，that 和which 在引导定语从句中代替物时可以互用，但以下情况一般要用which ：非限制性定语从句中关系代词一般要用which ； 关系代词前如有介词、关系代词须用which ，如把介词移至动词后，可用that （或省略）；如果先行词是that ，关系代词应用which ；如先行词和定语从句之间被其它较长的成分分隔，常用which ；在“those+复数形式的名词”结构中，其后的关系代词多用which ；一个句子中如有两个定语从句，第一个定语从句用了关系代词that ，第二个从句中的关系代词宜用which 。
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。
11 as和which的用法区别
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．
但是，当主句是否定句时，只能as。例如：
Spiders are not insects, as many people think. 蜘蛛不是昆虫，而许多人却认为蜘蛛是昆虫。
三、as 的特殊用法。
1、如果要说明两者有相似之处时通常用as，表达“正如（情形或事实所表示）的那样、像……的一样”的意思。例如：
He was a foreigner，as/which I knew from his accent．他是个外国人，我从他的口音中得知这一点。
I live a long way from work，as/which you know．我离上班的地方很远，你是知道这一点的。
The author was brought up in a small village, as/which is recounted in some of his stories. 作者是在一个小村庄里长大的，这个问题在他的一些小说了就被提到过。
As you know, he is from Beijing. 正如你所知道的，他来自北京。
As is known to everybody，the moon travels round the earth once every month．
as与which引导定语从句的用法辨析
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。
二、只能用which引导的定语从句1. 在限定性定语从句中。
2. “介词+关系代词”引导定语从句时，只能用which。
3. 当后置的非限定性定语从句是否定结构时，只能用which引导。
三、只能用as引导的非限定性定语从句1. 置于句首时，非限定性定语从句只能用as引导。
2. 在the same...as 结构中，意思是“像……那样的”。
3. 在as...as结构中，意思是“像……那样的”。
as作从属连词用时，可以引导五种状语从句。
现归纳如下：1. as表示“当……的时候”，引导时间状语从句，多强调主句和从句中的动作或状态同时发生，从句可放在主句前，也可放在主句后。
例如：As I waited at the stop，I heard a big noise.She rose up as he entered.2. as表示“因为”、“由于”，引导原因状语从句，其语气不如because强，通常为附加说明的理由，且是已知晓的原因，主句与从句没有逻辑上的因果关系。
例如：As she was not well, I went there alone.As he is a tailor, he knows what to do with this material.3. as表示“虽然……但是……”，引导让步状语从句，从句通常用倒装语序，把从句的表语、状语或动词原形放在as前面，可以用though替代。
例如：Child as he is, he knows a lot. Hard as it was raining，they went on working in the field.4. as表示“按照”、“依照”、“像”，引导方式状语从句，从句置于主句之后。
例如：You should do as the teacher tells you.The absence of air also explains why the stars do not seem to twinkle in space as they do from the earth.5. as表示“像……一样”，引导比较状语从句，对主句和从句的动作或状态加以比较，说明它们之间有相似之处，在从句中常省略与主句相同的部分。
which与as引导定语从句的区别 之谈
which与as引导定语从句的区别之谈常见的定语从句引导词一般为关系代词：who,whom,whose,which,that 和关系副词：when,why,where. 而作为比较另类的as用作关系代词和关系副词引导的定语从句，有时候就被大家忽略了。
众所周知，which与as都可以引导定语从句，但它们有许多用法上的区别，现就此简要分析如下：一、which与as引导非限制性定语从句的区别：1.Which只能放在主句后面，而as引导的从句位置相对较灵活，可在前，可在中，也可在后。
例如：A）As he realized, I was very useful to him.（在前）B）Air, as we know, is a gas.（在中）C）He was a foreigner, as I know from his accent.（在后）2.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as 后面若是这种情况，则可以省略。
例如：A）He is a teacher, as （is）clear from his manner.（is可以省略）B）He said he had never seen her before, which was not true.（was不可省略）3.当which引导的从句在意义上近乎并列关系时，可以用and this，and that代替，意思是“这件事”例如：A）He changed his mind, which（and this, and that）made me very angry.他改变了主意，这使我很生气。
B）She has married again, which（=and this, and that）was unexpected.出乎意料的是，她又结婚了。
而as主要起与上下文连接的作用，表达说话人的看法、观点，并指出主句内容的出处或根据等，例如：C）Einstein, as we know, is a famous scientist.爱因斯坦，众所周知，是位伟大的科学家。
as_which引导定语从句的区别
众所周知，which与as都可以引导定语从句，但它们有许多用法上的区别，现就此简要分析如下：一、which与as引导非限制性定语从句的区别：1．Which只能放在主句后面，而as引导的从句位置相对较灵活，可在前，可在中，也可在后。
例如：A) As he realized, I was very useful to him.(在前)B) Air, as we know, is a gas.（在中）C) He was a foreigner,as I know from his accent.(在后)2.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as后面若是这种情况，则可以省略。
例如：A) He is a teacher, as (is) clear from his manner.(is可以省略)B) He said he had never seen her before, which was not true.(was 不可省略)3.当which引导的从句在意义上近乎并列关系时，可以用and this，and that 代替，意思是“这件事”例如：A) He changed his mind, which(and this, and that)made me very angry.他改变了主意，这使我很生气。
B) She has married again, which(=and this, and that)was unexpected.出乎意料的是，她又结婚了。
而as主要起与上下文连接的作用，表达说话人的看法、观点，并指出主句内容的出处或根据等，例如：C）Einstein, as we know, is a famous scientist.爱因斯坦，众所周知，是位伟大的科学家。
D）As is announced in today’s newspaper, we must improve our style of work.今天的报纸上说，我们必须改进工作作风。
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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。
但含义有区别。
1、 Dorothy was always speaking highly of her role in the play, _______ , of course, made the others unhappy.
A. who
B. which
C. this
D. what
2、The number of senior high school students is increasing, _______ is mentioned above.
A. that
B. it
C. such
D. as
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
2. “介词+关系代词”引导定语从句时，只能用which。
例如：
Recently I bought an ancient Chinese vase, _______ was very reasonable.
A. which price
B. the price of which
C. its price
D. the price of whose
3. 当后置的非限定性定语从句是否定结构时，只能用which引导。
例如：
The result of the experiment was very good, _______ we hadn't expected.
A. when
B. that
C. which
D. what
三、只能用as引导的非限定性定语从句
1. 置于句首时，非限定性定语从句只能用as引导。
例如：
_______ is known to everybody, the moon travels round the earth once every month.
A. It
B. As
C. That
D. What
2. 在the same...as 结构中，意思是“像……那样的”。
例如：
Chongqing is not the same city _______ we have seen in other places.
A. that
B. which
C. 不填
D. as
3. 在as...as结构中，意思是“像……那样的”。
例如：
No period in history has had as many important changes _______ have taken place in the past century.
A. which
B. as
C. that
D. what
1. _______ has been announced, we shall have our final exam next month.
A. That
B. As
C. It
D. What
2. The weather turned out to be very good, _______ was more than we could expect.
A. What
B. Which
C. that
D. if
3. In the office I never seem to have time until after 5:30 pm, _______ many people have gone home.
A. whose time
B. That
C. on which
D. by which time
4. Mathilde had to work hard day and night and bought such a diamond necklace _______ she had lost to pay back to Jeanne.
A. as
B. That
C. which
D. 不填
5. —Robert, is this yours?
—Yes, it's just the same Walkman _______ I lost on the playground yesterday.
A. Which
B. what
C. As
D. that。