as与which在定语从句中的异同点总结
as与which在定语从句中的异同
点总结
■as 和which的相同点
(1) as 和which都可引导非限制性定语从句，放在主句之后；在非限制性定语从句中充当从句的主语、宾语或表语。
如：
Tom has found a good job, as / which we all hope. 汤姆找到了一件好工作，这正是我们大家所希望的。
(2) as 和which都可代表整个句子的内容或主句中的某一成分。
如：
His mother is ill, which makes him very sad. 他母亲病了，这件事情使他很难过。
He has made great progress, as / which makes us very happy. 他进步了，这使得我们很高兴。
以上两句中的as / which都指前面整个句子的内容。
Though he has lots of money, he still rides his old bike, which was bought ten years ago. 尽管他很有钱，但是他还骑着他的旧单车，这单车是十年前买的。
There you can meet many writers as you have ever read in books. 在那里，你可见到你在书中所读过的很多作家。
■as与which的区别
(1)当先行词前面有so + adj. + a / such + (a) + adj. , the same等词修饰时，引导词只能用as，而不用which。
如：
She is so nice a girl as we all like. 她是个我们大家都喜欢的如此好的女孩。
It is such an interesting book as we all want to read. 它是本我们大家都想读的有趣的书。
上面两句中的as就不能用which替换。
(2) as 在从句中常作宾语；作主语时，从句的谓语动词常为系动词，即：系表结构或被动结构。
如：
As you expected, he turned up on time. 正如你所愿，他按时到了。
As is said above, he has conquered the difficulty. 正如上面所说，他征服了困难。
(3)当非限制性定语从句放到主句的前面时，引导词只能用as，而不用which。
如：
As is planned, we got there before eight. 正如计划，我们再把店前到达了那儿。
(4) As引导的非限制性定语从句指表示积极的意义，与主句是顺理成章的关系，绝不能与之矛盾。
若非限制性定语从句表示一种消极的意义，则只用which。
如：
He has succeeded in his career, as / which we all hope. 他在事业中成功了，这正是我们大家所希望的。
Her grandma died last week, which made her very sad. 她的奶奶逝世了，这使得她很悲伤。
(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。
(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：She told us that there was something wrong with her bike, which was true。
她告诉我们说她的单车出了毛病，这话是真的。
He asked her to help him with his English, which she did. 他请她教他学英语，她的确帮了。
(7) 关系代词仅代表主句中的谓语部分时，从句中谓语部分被省略而只保留情态动词的否定式或助动词否定式，引导词一般只用which, 而不用as。
如：
He speaks English very fluently, which I can’t. 他的英语说得非常流利，这我可不行。
(8)关系代词作定语修饰后面的名词时，一般只用which, 而不用as。
如：
He suggested going swimming in the river, which idea we agreed with. 他提议去河里游泳，我们就同意了他的想法。
(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。
(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. 老师眼里流露出对他喜爱的神情，就好像母亲对孩子的喜爱。
(11) as常用于一些固定结构中。
如：
as is well known / as we all know 众所周知；as is said above 正如上面所说；
as might be imagined 正像所想象的那样；as is reported 如报道所说；
as has been pointed 如所指出的那样；as is expected 正如所料。
高中英语 知识点大全13 aswhich引导定语从句异同
高中英语知识点大全（13）：as/which引导定语从句异同1、as/which引导定语从句异同as/ which 都能引导限制性或非限制性的定语从句。
(1)在引导限制性定语从句时；①which从句修饰的先行词是名词（词组），which可与that换用，作宾语时可省去。
如：Then grow some tomatoes in one box which has plant food in the soil and some in another box which doesn’t.But the studios(which)he started are still busy today, producing more and more interesting films.②as从句的先行词是the same/such或被the same/such修饰；as可作主、宾、表语，一律不可省略。
如：Many of the sports were the same as they are now.（as作表语）He uses the same map as I (use).他和我用的是同一份地图。
（as作宾语）Such as beautiful park as is being built was designed by two young engineers.正在建造的如此漂亮的公园是由两个年轻的工程师设计的。
（as作主语）The printed newspaper was not such as the chief editor had expected. 印好的报纸并非如主编原来所期望的那样。
（as作宾语）(2)在引导非限制性定语从句时，as,which都可作主、宾、表语，都不可省去。
①which从句补充说明先行词的用途、性质、状态、特征等。
如：At present,the biggest nature park for milu deer in China is in the Nanhaizi Milu Park,which is about 20 kilometres south of Beijing.(位置)China Daily has plenty of advertisements, which help to cut the costs of making the newspaper.(用途)One of Charile Chaplin’s most famous films was“The Gold Rush”,which was made in 1925.(时间)Now, however,the maters of this great lake,which is also the World’s deepest(over 1,740 metres),have been dirtied by waste from a chemical factory.(特征)②which从句还可表示说话人的看法，也可对主句作意义上的补充；which=and it/ this/ that/ they;which代表的是先行词、主句或主句的一部分；which从句只能放在先行词或主句后。
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。
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。
定语从句中as与which用法异同 (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）：573-574He 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.（我遇见了昨天你看见得那个人。
）马德高，朱崇军 2008 高中英语语法全解［M］北京中国社会出版社 (7):252②such--- as---中，as 引导定语从句，as 在从句中作主语、宾语等; such--- that ---中的that 引导的是结果状语从句。
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。
最新as与which引导的定语从句区别-(1)课件ppt
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。
(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：
as与which引导的定语从 句区别-(1)
一.as和which的相同点
(1)as和which都可引导非限制性定语 从句，放在主句之后；在非限制性 定语从句中充当从句的主语、宾语 或表语。如：
Tom has found a good job, as / which we all hope. 汤姆找到了一 件好工作，这正是我们大家所希望 的。
He has succeeded in his career, as / which we all hope. 他在事业中成 功了，这正是我们大家所希望的。
Her grandma died last week, which made her very sad. 她的奶奶 逝世了，这使得她很悲伤。
(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：
親屬
甲的女兒嫁給乙的兒子為妻，甲乙之間有無姻親 關係？
甲（女）
結婚
乙（子）
問題：甲乙之間有姻親關係嗎？
血親之配偶之血親，非姻親範圍 故甲乙之間（兒女親家）無姻親關係
親屬
親屬之親系 ➢血親親系 1.直系血親：己身所從出或從己身所出之血親 ＊己身所從出：父母祖父母（直系血親尊親屬） ＊從己身所出：子女孫子女（直系血親卑親屬） 2.旁系血親 非直系血親，而與己身出於同源之血親 如：叔公伯公、叔叔伯伯、兄弟姊妹、姪子女
as 和which 引导定语从句的异同
as 和which 引导定语从句的区别一、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.注：which 代表整个句子，还可用于in which case, at which point, on which occasion等。
I may have to work late, in which case I’ll telephone you.我可能得晚点下班，那样我会给你打电话的。
The machine may be out of order, in which case it will be repaired at once.Ten years of hard work changed her greatly, for which reason he could hardly recognize her at first sight.二、不同点：1. 在限制性定语从句中，当先行词被the same, such ,as ,so修饰时，要用as代替who，whom，which 或者that引导定语从句。
Such men as heard him were deeply moved.听过他说话的人，都会深受感动。
（as在定语从句中作heard的主语）I've never heard such stories as he tells.我从未听过像他讲的这样的故事。
（as在定语从句中作tell的宾语）He lifted so heavy a stone as no one else can lift.他搬起别人都搬不起的大石头。
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。
as与which的区别
注意区别：
the same...as 相同物体 the same...that 同一物体 She wore the same dress as her younger sister wore. She wore the same dress that she wore at Mary's wedding.
Kate was late for school , as语义与主句一致, which无此限制
She has married again, which/as was expected. She has married again, which was unexpected.
一、as和which引导非限定性定语从句的区别
1、从句位置不同 as : 句首、中、后 which ：主句或先行词之后，不位于句首
1) She told me she won the match , which was a lie. 2)As is known to all, fish can’t live without water. 3)Air, as we know, is gas. 4)He was a doctor, as I knew from his manner.
as 有正如….那样的意思。
（2013, 山东）You’ll find taxis waiting at the bus station ＿＿ you can hire to reach your host family.
A.which B.where C.when D. as 句意：你会发现出租车在车站等候，你可以租一辆到你 的寄宿家庭。本题考查限制性定语从句
as 引导限定性定语从句，先行词的前面常有the same, such ,as ,so修饰