as和which引导的定语从句的用讲解
1.as引导定语从句的用法
关系代词即可以引导限定性定语从句，也可以引导非限定性从句，as在从句中做主语，并与或表语。
1)Such +名词+as… (像…一样…/像…之类)
The same +名词+as (和…同样的)
These houses are sold at such a low price as people expected.(as作宾语)
He is not the same man as he was. (作表语)
We have found the same materials as are used in their factory. (做主语)
2)Such …as引导的定语从句与such…that引导的状语从句的区别
He is such a naughty boy as everyone dislikes.
He is such a naughty boy that everyone dislikes him.
3)结构such as中such作代词，意为“这样的人或事”，as在从句中做成分，修饰先行词。
This book is not such as I expect. (这不是我想要的书)
He is such as you can’t rely on.
2.As和which引导定语从句的区别
1）as的用法：①在从句中通常做主语代指整个主句，②表示的意思是正如，正像③其引导的定语从句即可以放在主句之前也可以放在主句之后。
As we expect, we won the game.（正如我们预料的一样，我们赢了）。
The Pacific is the largest ocean, as we all know.
The earth is round, as we all know.（正如我们所知到的一样地球是圆的）
As is known to all, he is the best student in our class.
2）which的用法：①关系代词，在从句中做主语或宾语，代指人或事。②当代指整个主句时表示的意思是主句和从句之间是因果关系即因为所以。③其引导的非限制性定语从句只能放在主句之后。
Tom suddenly fell ill, which made us sad.
The road was too slippery, which caused lots of accidents. (因果关系)
3）当非限定性定语从句放在主句后面时，一下情况要注意：
a.当非限定性定语从句是否定词或表否定时，只能用which.
He came here very late, which was unexpected/out of our expectation.
Johnson refused to apologize for his blame and flashed the door angrily, which left the atmosphere of the meeting in embarrassment.
b.as仍然保持连词时常含有“正如…/正像…”的含义
Jack has won the first price, as it often happens.
He is unusually warm-hearted, loving and generous, as all his friends can see.
c.当as在从句中作主语时，后面常接动词的被动语态。如果从句中行为动词是主动语
态，一般用which。
She has been absent again, as is expected.
Tom has made rapid progress, which makes me very happy.
d.当非限定性定语从句的宾语是一个复合结构(如宾补)的时候，只能用which。
Betty always tells a lie, which makes her parents feel strange.
一、“as / which”特殊定语从句的先行成分
1. 形容词或形容词短语作先行成分, 具有形容词意义的介词短语也可以充当先行成分，My grandmother’s house was always of great importance to me, as my own is.
在一定的语言环境里，有些名词可以具有形容词的性质。这些名词主要是那些表示人的身份、职业、状态的名词。值得一提的是，在这些具有形容词性质的名词之后，引导定语从句的关系代词不能用who / whom.
2. 动词短语先行成分。
这种动词短语既可是限定形式也可是非限定形式。如果是动态动词短语，它们在从句中就一般有限定或非限定形式的替代动词do和as / which一起代替。do可以出现，也可以不出现，但不能用其它动词代替。
3. 句子作先行成分。
这句子可以是整个主句也可以只是主句中的一个从句。有时是连续几个句子，有时甚至可以是一个完整的故事。
二、“as/which”特殊定语从句在句中的位置
由于先行成分的构成成分不同，“as/which”特殊定语从句在句中的位置有以下几种情况：1. 形容词做先行成分时：形容词或形容词短语（含具有形容词性质的名词）作先行成分，“as / which”特殊定语从句置于先行成分之后。
2. 动词短语作先行成分时：动词短语作先行成分时，“as / which”特殊定语从句置于先行成分之后。但是，当从句中含有表示主观意志的插入成分时，“as”特殊定语从句可以移至句子之首。
3. 句子作先行成分时：“as”特殊定语从句的位置较灵活，可以置于先行成分之前、之中或之后。但如果先行成分是直接引语，“as”特殊定语从句多在先行成分之前。如果先行成分是否定句，“as”特殊定语从句与否定词的相对位置不同可以使它产生不同的意义。由于“as”特殊定语从句具有这一特点，所以有时它的位置不能随便移动。在非正式的文体里，“which”特殊定语从句可以出现在先行成分之中。
三、“as/which”特殊定语从句的语义功能
一般说来，as与which的语义功能相同，可以相互替换。但先行成分为句子时，它们的语义功能则有差异。
1. 表示结果（which）
表示结果的特殊定语从句与其先行成分之间存在着一定的因果关系，从句中往往使用有结果意义的词，如动词result, make, enable, cause和形容词interesting, surprising, delightful, disgraceful等。
2. 表示评注（as）
表示评注的特殊定语从句对其先行成分所述事实的正确性有肯定的倾向，它通常与那些表示客观事实，普遍真理或某种习性的先行成分连用；从句中则常用一些表示“合乎自然规律”、“众所周知”或“经常发生”等意义的词语，如natural, known to all, usual等。
3. 有无状语意义
“as”特殊定语从句具有状语意义（主要是方式状语意义），而“which”特殊定语从句则无状语意义。“as”特殊定语从句的状语意义要求它在语义上与其先行成分的语义保持一致，“which”特殊定语从句则不受这种限制。
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。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：
which,who引导的定语从句教案资料
which, who引导的定语从句 看下面的几个例句： It successfully shows the rich culture which makes Beijing so famous. 它成功地展示了使北京闻名遐迩的悠久文化。 The photo which we liked best was taken by Zhao Min. 我们最喜欢的照片是赵敏照的 先行词是物 It successfully shows the rich culture which makes Beijing so famous. 引导词在从句中作主语 先行词是物 The photo which we liked best was taken by Zhao Min. 引导词在从句中作宾语 由此，我们可以看出：which引导的定语从句修饰的是无生命的东西。which 在从句中的成分是可以作主语，也可以作宾语。 下面我们再看一个句子： 先行词是人 His father is the person who will be most unhappy. 引导词在从句中作主语 由此，我们可以看出： 如果先行词是人，那么定语从句的引导词就可以是who。 注意：当who 在从句中作宾语时，在现代语法规则简化为大多数情况下都可用who了。 如：Do you know Mr Zhang who(m) they like very much? 在先行词是物的定语从句中，一般情况下that和which都可以通用, 但在下列情况下, 一般用that而不用which。 (1)先行词为all, everything, nothing, something, anything, little, much 等不 定代词时。 I am sure she has something that you can borrow. (2).先行词被all, little, much, every, no, 等修饰时。 I’ve read all the books that are not mine. (3)先行词被序数词或最高级修饰时。 This is the first book that he has read (4)先行词被the only, the very, the same, the last修饰时。 This is the very book that belongs to him. (5)先行词为人和物的组合。 They talked for an hour of things and persons that they remembered in the
as引导定语从句的用法
as引导定语从句的用法 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 (1) As is known to all, China is a developing country. (2) He is from the south, as we can see from his accent. (3) John, as you know, is a famous writer. (4) He has been to Paris more than several times, which I don’t believe. ================================ 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 we know, smoking is harmful to one's health. As is known, smoking is harmful to one's health. As是关系代词。例1中的as作know的宾语； 例2中，它充当从句的主语，谓语动词know要用被动式。 一、“as / which”特殊定语从句的先行成分 1. 形容词或形容词短语作先行成分, 具有形容词意义的介词短语也可以充当先行成分，如： My grandmother’s house was a lways of great importance to me, as my own is. 在一定的语言环境里，有些名词可以具有形容词的性质。这些名词主要是那些表示人的身份、职业、状态的名词。值得一提的是，在这些具有形容词性质的名词之后，引导定语从句的关系代词不能用who / whom. 2. 动词短语先行成分。 这种动词短语既可是限定形式也可是非限定形式。如果是动态动词短语，它们在从句中就一般有限定或非限定形式的替代动词do和as / which一起代替。do可以出现，也可以不出现，但不能用其它动词代替。 3. 句子作先行成分。 这句子可以是整个主句也可以只是主句中的一个从句。有时是连续几个句子，有时甚至可以是一个完整的故事。 二、“as/which”特殊定语从句在句中的位置 由于先行成分的构成成分不同，“as/which”特殊定语从句在句中的位置有以下几种情况：1. 形容词做先行成分时：形容词或形容词短语（含具有形容词性质的名词）作先行成分，“as / which”特殊定语从句置于先行成分之后。 2. 动词短语作先行成分时：动词短语作先行成分时，“as / which”特殊定语从句置于先行成分之后。但是，当从句中含有表示主观意志的插入成分时，“as”特殊定语从句可以移至句子之首。 3. 句子作先行成分时：“as”特殊定语从句的位置较灵活，可以置于先行成分之前、之中或之后。但如果先行成分是直接引语，“as”特殊定语从句多在先行成分之前。如果先行成分是否定句，“as”特殊定语从句与否定词的相对位置不同可以使它产生不同的意义。由于“as”特殊定语从句具有这一特点，所以有时它的位置不能随便移动。在非正式的文体里，“which”特殊定语从句可以出现在先行成分之中。
定语从句中where和which的区别
定语从句中where和which的区别
定语从句中where和which的区别 1.This is the factory_________we visited yesterday. 2.This is the stable__________Jesus Chirst was born. 1,which 2.where 分析：关键是看从句中的动词。如果是及物动词（顾名思义，就是必须要接物做宾语的动词，或能用做被动的动词），则表明从句缺宾语，修饰人用who/whom/that。修饰物用that/which. 如动词是不及物（顾名思义就是不需要接物做宾语的或要接宾语时前面必须要加介词的，即用介宾的动词），则说明从句不缺宾语，可能是状语(或介宾）。表地点用where.时间用when. 如题1：从句的动词是visit，我们说参观某个地方说：visit some place。而不说visit in the place所以visit是及物动词。所以缺宾语，修饰物故用which. 如题2，我们说出生于某地用be born in，如：i was born in beijing 而不说i was born
beijing.故说明born 后不直接跟宾语，应用介宾，或关系副词（where/when)所以此处填in which 也是正确的。 所以在平时的练习中应注意动词的及物于不及物性1这是解决这类题的关键之一。扩展练习： 1.These are the days ____ I spent with my mom. (when） 2.These are the times _____ I experienced .（which） 英语定语从句that ,where ,which 的区别 例如：(1) I love places ____ the people are really fridendy A.that B.which C.where D.who (2) This is the place ____ I have ever visited there B.whom C.he D.which (3).This is the house ____ I want to buy A.In which B.that C.what D.that (4)this is the museum ____ we visited last year A.where B. in which C.which D.in that
which引导的定语从句
关于which引导从句的小结： 关系代词which 一般指物，在定语从句中作主语、宾语或定语，既可引导限制性定语从句，又可引导非限制性定语从句。 1. 引导限制性定语从句 A shop should keep a stock of those goods which sell best. [ stock存货] 商店应存有最畅销的货物。 This is the family which is planning to move to the city 这是要搬进城里的一家。 2. 引导非限制性定语从句。 （1 ）用来指代一个句子。 Internet is so interesting, which makes all possible happen. 因特网是如此有趣，它使任何事都有可能发生。 （2 ）用来指代句子的一部分。 When deep in thought, which he often was, he would forget all around him. 他常常陷入沉思，这时他就会忘掉周围的一切。 （3 ）如果要引导两个非限制性定语从句，第二个which 前要加and. He bought a book, which was written by LuXun, and which he decided to give to his friend. 他买了本鲁迅写的书，他决定送给朋友。
练习1. [1. board董事会 2. data资料,数据 3. shareholder 【英】股东 4. on behalf of代表 5. guard保护] The ability to guard customer data is the key to market value, which the board is responsible for on behalf of shareholders. which的先行词是谁？ 译文：保护客户资料的能力是市场价值的关键，董事会代表股东对市场价值负有责任。 【难点小结：1.介词短语 2.which 的先行词 3. 非限制性定语从句有时要翻译成一句话】 例2. 【1.semiconductor半导体 2. casualty伤亡，灭亡，覆灭 3.< A sit at the heart of B> A是B的核心】
as 引导定语从句, 在定语从句中作主语、宾语、表语
as的用法: (as引导定语从句,在定语从句中作主语、宾语、表语) (1)如为限制性的，多用于the same …as ; the same as；such …as …; as many/muchas；so …as等结构中。如： 1. I have the same book as you (have).我有一本和你的一样的书。 Her attitude to him was quite the same as it had always been. (关系代词as和指示代词same连用,在从句中用作表语,先行词是same.) 2.---Why didn't you mention that in face of the police just now? --- I thought it was such a minor detail as was hardly worth mentioning. We will only discuss such problems as have something to do with our own interests.Don't do such things as you are not sure about. There is no such place as you dream of in all this world. 比较： I live in the same house that he used to live in. I'm wearing the same shirt as you wore yesterday. 比较： Here is so big a stone as no one can lift.（定语从句） Here is so big a stone that no one can lift it.（结果状语从句） (2)如为非限制性的，多单独引导一个定语从句，这种定语从句可置于句首，句中或句尾，译为"正如，这一点"。（动词常为know, see, expect, point out, etc.） 1. As we all know, smoking is harmful to one's health . (as作宾语) =As is known to all, smoking is harmful to one's health .（as作主语）
as在定语从句中的用法
关系代词as 引导的定语从句 1、as 可以在定语从句中做主语或宾语，代表前面整个句子。如： He married her, as was natural. 他跟她结婚了，这是很自然的事。 He is honest, as we can see. 他很诚实，这一点我们看得出来。 2、as 引导的非限制性定语从句可以放在主句之前、主句之后，甚至还可以分割主句。另外，as 常 常有“正如、正像”的含义。如： As is known to all, China is a developing country. 众所周知，中国是发展中国家。 He is from the south, as we can know from his accent. 他是南方人，从他的口音我们就可以知道。 John, as you know, is a famous writer. 正如你所知，约翰是个著名作家。 3、当先行词受such, the same 修饰时，关系词常用as。如： I’ve never heard such stories as he tells. 我从未听过象他讲的这样的故事。 He is not such a fool as he looks. 他可不象他看上去的那样傻。 This is the same dictionary as I lost last week. 这部词典跟我上星期丢失的一样。 注意： 当先行词受the same 修饰时，偶尔也用 that引导定语从句，但与as引导的定语从句意思有区别。如：She wore the same dress that she wore at Mary's wedding. 她穿着她在玛丽婚礼上穿过的那个同一条连衣裙。 She wore the same dress as her younger sister wore. 她穿就像着跟她妹妹所穿的一样的连衣裙。
as和which的用法区别
非限制性定语从句中的as和which ■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 is said above, he has conquered the difficulty. 正如上面所说，他征服了困难。
定语从句中that 和which的用法
定语从句中的that和which的用法 引导定语从句的关系代词有：that（指人或物）,which （指物）,who (指人）.指人时可用that或who ；指物时可用that 或which 。 That和which在从句里都可以做宾语和主语，做宾语时可以省略。指物时，两者一般可以互换，但在下列情况下只能用that： 1）当先行词是all ,any ,anything ,everything ,nothing 或被它们修饰时.例如： Is there anything that I can do for you 有什么可以为你做的吗? All that can be done must be done . 凡是能做的都必须做. 2）当先行词被形容词的最高级或序数词修饰时.例如：That is one of the most interesting books that are sold in the bookshop . 那是这家书店出售的最有趣的书之一. The first thing that we should do is to get some food . 我们该做的第一件事是弄点吃的. 3）当先行词有：the only ,the very ,the same ,the last 等修饰时.例如：
My necklace is not the only thing that's missing . 我的项链不仅是丢掉的东西. 4）当主句以who或which开头时,定语从句中引导词用that ,不用which 或who .以避免重复.例如： Who is the girl that is wearing a red coat 正穿一件红色外套的女孩子是谁? 5）当先行词既有人又有物时,用that .例如： The writer and his novel that you have just talked about are really well known . 你刚才谈起的那位作家以及他的小说确实很著名. 请注意: 以下几种只能使用which的情况: 1.引导非限制性定语从句，用which。 2.在“介词＋关系代词”结构中，关系代词必须用which。 如：The house in which we live is very large. 我们住的房子非常大。 This is the reference book of which the teacher is speaking. 这就是老师正在谈及的那本参考书。 注意：如果介词不放在修饰事物的限定性定语从句的句首，which就可换为that，例如：This is the question which/that we've had so much discussion about. =This is the question about which we've had so much discussion.
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which Our 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。Which引导的非限制性定语从句在从句中做主语，其代指整个主句，主从句的关系是因果关系，因为他的病，所以我们伤心。 The road was too slippery, which caused lots of accidents. 路太滑了，以至于引起了很多事故。which引导的非限制性定语从句在从句中做主语，其代指整个主句，主从句的关系是因果关系，因为路滑，所以出事。 (1) As is known to all, China is a developing country. (2) He is from the south, as we can see from his accent. (3) John, as you know, is a famous writer. (4) He has been to Paris more t han several times, which I don’t believe. (5) Tom was always late for school, which made his teacher angry.
定语从句中用Which的几种情况
定语从句中用Which的几种情况 Abstract :Generally, when talking about the differences between “that”and “which”in the Attributive Clauses, teachers like to emphasize the uses of “that”. So most students are familiar with them and know how to use “that”.But many of th e students don’t know the relative pronoun “which” also has many uses .In the past few years, “which”appeared more frequently in NMET than “that”.So in this article , the author mainly show us when to use “which” and give a complete conclusion of “which”. Key words: which 定语从句指代物指代人 通常，在讲定语从句关系代词“that”与“which”的区别时，老师喜欢强调“that”的用法，大部分学生对其比较熟悉，也知道如何使用“that”。然而，关系代词“which”的用法同样比较多。它既可以指物，也可以指人（这一点可能许多同学不太熟悉和了解）：既可以引导限制性定语从句，也可以引导非限制性定语从句。近几年来，高考对“which”的考查越来越多。请看下面几个高考题： 1 . The factory produces half a million pairs of shoes every year, 80%_______ are sold abroad . (2004年辽宁卷, 答案:A .which指代物) A. of which B. which of C. of them D. of that 2 . The journey around the world took the sailor nine months ,________ the sailing time was 226 days .(2004年广西卷,答案A . which 指代物) A. of which B. during which C. from which D. for which 3 . Frank’s dream was to have his own shop ______ to produce the workings of his owm hands. (2005年湖南卷答案：B which 指代物) A. that B. in which C. by which D. on which 4 . The English play _______my students acted at the New Year’s party was great success .(200 5 年全国I卷答案:C which指代物) A. for which B. at which C. in which D. on which 5 . Her sister has become a lawyer , _______ she wanted to be . ( 2005年湖北卷答案D which指代人) A. who B. that C. what D. which 因此，掌握“which”在何种情况下使用是非常有必要的。那么，“which”到底有那些用法呢？笔者在多年的教学实践中将“which”的用法进行了较全面的总结。现将其一些较特殊的和不常见的用法予以展示, 希望可对各位同仁和英语爱好者有所帮助。 一、先行词表物时下列情况只用which;不能用that： 1、在定语从句中,当关系代词紧跟介词,作介词宾语时 Eg：①.The table under which the boy crawled was put up for aution. 男孩在下面爬的那张桌子被拿去拍卖了。 ②.Light is the fast thing in the world , the speed of which is 300,000 kilometers per second. 世界上光的速度是最快的,其速度是每秒三十万公里。 ③.He once participated the investigation the result of which will be soon published. 他参加了结果不久就将公布的那项调查。 另外，还可以在不定式作定语的结构中作介词宾语。此时不定式短语相当于一个定语从句。 Eg : ①. The key with which to open the door has been lost. 开这扇门的钥匙不见了。
as引导定语从句的用法
as引导定语从句得用法 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引导得非限制性定语从句只能放在主句之后。另外,as有“正如……,正像……”得意思 (1) As is known to all, China is a developing country、 (2) He is from the south, as we can see from his accent、 (3) John, as you know, is a famous writer、 (4) He has been to Paris more than several times, which I don’t believe、 ================================ As 得用法例 1、the same…as;such…as 中得as 就是一种固定结构, 与……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 we know, smoking is harmful to one's health、 As is known, smoking is harmful to one's health、 As就是关系代词。例1中得as作know得宾语; 例2中,它充当从句得主语,谓语动词know要用被动式。 一、“as / which”特殊定语从句得先行成分 1、形容词或形容词短语作先行成分, 具有形容词意义得介词短语也可以充当先行成分,如: My grandmother’s house was a lways of great importance to me, as my own is、 在一定得语言环境里,有些名词可以具有形容词得性质。这些名词主要就是那些表示人得身份、职业、状态得名词。值得一提得就是,在这些具有形容词性质得名词之后,引导定语从句得关系代词不能用who / whom、 2、动词短语先行成分。 这种动词短语既可就是限定形式也可就是非限定形式。如果就是动态动词短语,它们在从句中就一般有限定或非限定形式得替代动词do与as / which一起代替。do可以出现,也可以不出现,但不能用其它动词代替。 3、句子作先行成分。 这句子可以就是整个主句也可以只就是主句中得一个从句。有时就是连续几个句子,有时甚至可以就是一个完整得故事。 二、“as/which”特殊定语从句在句中得位置 由于先行成分得构成成分不同,“as/which”特殊定语从句在句中得位置有以下几种情况: 1、形容词做先行成分时:形容词或形容词短语(含具有形容词性质得名词)作先行成分,“as / which”特殊定语从句置于先行成分之后。 2、动词短语作先行成分时:动词短语作先行成分时,“as / which”特殊定语从句置于先行成分之后。但就是,当从句中含有表示主观意志得插入成分时,“as”特殊定语从句可以移至句子之首。 3、句子作先行成分时:“as”特殊定语从句得位置较灵活,可以置于先行成分之前、之中或之后。但如果先行成分就是直接引语,“as”特殊定语从句多在先行成分之前。如果先行成分就是否定句,“as”特殊定语从句与否定词得相对位置不同可以使它产生不同得意义。由于“as”特殊定语从句具有这一特点,所以有时它得位置不能随便移动。在非正式得文体里,“which”特殊定语从句可以出现在先行成分之中。 三、“as/which”特殊定语从句得语义功能 一般说来,as与which得语义功能相同,可以相互替换。但先行成分为句子时,它们得语义功
(完整版)as和which引导非限制性定语从句的区别
As与which引导非限定性定语从句辨析 1.as引导非限制性定语从句，只代表主语或主句的一部分所表达的意思(不能指代某个名词或代词)，可以放在主句前，后或中间，在从句中作主语或宾语、例如： As is known to all, he is the best student in our class. (as指代整个句子，作主语，置于句首) He opposed the idea, as could be expected. (as 指代整个句子，作主语，置于句末) As we all know, he studies very hard. (as 指代整个句子，作宾语，置于句首) Taiwan is, as you know, an inseparable part of China. (as指代整个句子，作宾语，置于句中) 2.在非限制性定语从句中，which和as引导定语从句时的区别： a. which引导的从句不能放在主句前，而as引导的从句则既可以放在主句前，也可以放在主句后。例如： As (正确) is often the case, he is absent. Which (错误) He saw the girl, as (正确) He had hoped. Which （正确） b.用能做关系代词，as和which都可以指代一个句子，但as有“正如”、“就像”之意，which则没有此含义。 He is a foreigner, as I know from his accent. (as指代一个句子，意为“正如”、“就像”) He has to work on Sunday, which he doesn’t like. (which指代一个句子，没有“正如”、“就像”) c.当从句的谓语动词是be或相当于联系动词的seem, become等时，可用as或which作主语。但当从句的谓语是行为动词时，只能用which作主语。例如： He married her, as (正确) was / seemed natural. Which （正确） He saw the girl, as (错误) delighted him. Which （正确
which在非限制性定语从句的用法
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，如若定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确；非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开，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。 which引导的非限制性定语从句。 关系代词which在非限制性定语从句中所指代和修饰的可以是主句中的名词、形容词、短语、其他从句或整个主句，在从句中作主语、动词宾语、介词宾语或表语。 ① which指代主句中的名词，被指代的名词包括表示物、婴儿或动物的名词、表示单数意义的集体名词以及表示职业、品格等的名词。 如：These apple trees，which I planted three years ago，have not borne any fruit. 这些苹果树是我三年前栽的，还没有结过果实。 She is an artist，which I am not. 她是一位艺术家，而我不是。 Water，which is a clear liquid，has many uses. 水是一种清澈的液体，有许多用途。 The two policemen were completely trusted，which in fact they were. 那两个警察完全受到信任，事实上，也真是如此。 ② which指代主句中的形容词。 如：She was very patient towards the children，which her husband seldom was. 她对孩子们很耐心，她丈夫却很少这样。 She is always careless，which we should not be. 她总是马虎大意，我们可不应该这样。
As引导的定语从句(含配套练习与答案)
As引导的定语从句（配练习与答案） 一、Review定语从句 1. 定语从句的基本用法 2. 限制性定从的基本用法 a. 作用：起限定作用, 不可省，使句意不完整。 b. 位置：位于先行词之后，不用逗号。 c. 翻译：用形容词的形式去翻译。 d. 修饰：先行词。 ! Eg: He has two sisters who are working in the city. （他有两个在城市里工作的妹妹。） 3.非限制性定从 a.作用：起补充说明, 可省。 b.位置：位于先行词之后，用逗号隔开。 c.翻译：译成两个并列句。 Eg: He has two sisters , who are working in the city. (他有两个妹妹，都在城市里工作。) d.不能用“that”引导非限制性定从。 e.修饰：先行词或整个句子。 (which可指代整个句子) f.^ g.Eg: He missed the show, which was a great pity. (他错过了那个节目，真是太遗憾 了。) h.表达先行词部分或全部的数量的结构为：先行词为人：some/all + of +whom 先行词为物：some/all + of +which Eg: Here are the questions , some of which I thought are very easy. 二、as 引导限制性定从 1. as 作关系代词, 可指人也可指物, 在从句中可作主语和宾语。 2. 固定搭配: such as (例如, 象这样)，as…..as (和…..一样)，the same as (与…..相同) Eg: Such people as had made great contributions should be respected. (主语) # Eg: You can take as many books as you need. （宾语） 三、As引导的非限定性定从句
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）：573-574 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. （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):252