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.
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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。
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
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
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。
四、关系代词as与which的句法功能
1. as / which 在特殊定语从句中作主语。
as作主语时，谓语动词常为连系动词（主要是be, seem），主语补语为usual、a rule、a matter of fact等时，系动词be习惯经常省略。行为动词作“as”特殊定语从句的谓语时一般用于被动语态（其中助动词be常略），不及物的行为动词在“as”特殊定语从句中作谓语的极少，常见的有happen一词。如：
Freddie, as might be expected, was attending the conference.
Which作主语时，谓语动词不限，主语被动皆可，只是谓语动词为被动语态时助动词be 省略。
2. as和which都可以在特殊定语从句中宾语。
3. as和which在特殊定语从句中作补语。如：
We thought him a gentleman, as/which he could never be.
“as”特殊定语从句中可以主谓倒装，“which”从句中则不能主谓倒装。
如果先行成分不是主语补语或宾语补语，关系代词用which而不用as。如：
He talked like a native, which/as he hardly was.
4. which在特殊从定语句中作定语。
which可以在特殊定语从句中作定语，修饰fact, matter, thing 等名词。这些名词代表先行成分表达的意义，有时将其略去句义仍然完整。as不能作定语。如：
I was told to go not by train but bus, which advice I followed.
第一、在限制性定语从句中的区别：
as 的用法：其通常和such\ the same连用，代指物在从句中做主语或宾语
This is the same pen as I bought yesterday。
这种笔和我昨天买的笔一样（同样的但不是同一个）。引导定语从句的关系词在从句中做宾语，因先行词被the same所修饰所以用as引导
注意：上句与下句的区别This is the same pen that I used yesterday.这就是昨天我使用的那一支钢笔（指的是同一个）。
I studied in the same school as she did in Beijing.
我和他在北京的同一所学校就读。
引导定语从句的关系词在从句中做宾语，因先行词被the same所修饰所以用as引导
I want to have such a dictionary as he has.
我想要一本和他的一样的字典。
引导定语从句的关系词在从句中做宾语，因先行词被such所修饰所以用as引导
which的用法：关系代词，在从句中做主语或宾语，做宾语时通常可以省略（直接做介词的宾语时除外，不能省。）
The radio which he bought yesterday doesn't work now.
他昨天买的收音机现在坏了。
引导定语从句的关系代词在从句中做宾语，代指物，故用which.
Can you lend me the book which was written by Lun Xun..
你能借我那本由鲁迅所写的书吗？
引导定语从句的关系代词在从句中做主语，代指物，故用which.
This is the park which is the most beautiful one in our city.
这是我们这个城市最漂亮的公园。
引导定语从句的关系代词在从句中做主语，代指物，故用which.
This is the map by which we can get to the forest.
这是张地图，借助它我们能到达那个森林。
引导定语从句的关系代词在从句中做介词的宾语，代指物，故用which.
第二、在非限制性定语从句中的区别：
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象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。
The Pacific is the largest ocean, as we all know.
太平洋是最大的洋，这一点我们都知道（正如我们所知到的，太平洋是最大的洋）。
引导非限制性定语从句的as在从句中做know的宾语，其代指整个主句。
As we expect, we won the game.
我们赢了，这一点在我们预料之中。（正如我们预料的一样，我们赢了）。
引导非限制性定语从句的as在从句中做主语，其代指整个主句。从句在主句的前面
The earth is round, as we all know.
地球是圆的，这一点我们都知道。（正如我们所知到的一样地球是圆的）
引导非限制性定语从句的as在从句中做know的宾语，其代指整个主句。
As is known to all, he is the best student in our class.
众所周知，他是我们班上最好的学生。（正如我们所知到的一样，他是我们班上最好的学生。
引导非限制性定语从句的as在从句中做主语，其代指整个主句。
which的用法：①关系代词，在从句中做主语或宾语，代指人或物。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.
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。
He was angry, which made him cry.
他太生气了以至于他哭了起来。
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，因为生气，所以哭。
初中英语定语从句的用法解析 【摘要】定语从句是一种形容词的关系从句。它由关系代词或关系副词引导（1）。初中英语中的定语从句仅限于限制性定于从句，但对初中生来说，定语从句既是一个重点，也是一个难点。 【关键词】定语从句先行词关系代词关系副词 一、英语中的定语从句与汉语中的定语位置不同。 在复合句中，修饰某一名词或代词的从句叫做定语从句。英语中的定语从句始终要放在被修饰的词之后，而汉语中的定语则放在被修饰词之前。如： The man who / that I saw at the school gate yesterday is my English teacher. 先行词定语从句 昨天我在校门口看见的那个人是我的英语老师。 二、英语从句中的句型结构比较复杂，有先行词、关系代词或关系副词。被定语从句修饰的词叫先行词，引导定语从句的关联词有关系代词或关系副词。限制性关系分句和它的先行项的所指意义有着不可分割的联系（2）。关系代词或关系副词放在先行词和定语从句之间起纽带作用，关系代词或关系副词在定语从句中要充当一个成分。关系代词在句中可作主语、宾语或定语，关系副词在句中作状语。如： I am waiting for the boy who /that is wearing a red coat. （主语） 先行词关系代词 我正在等穿着红色外套的那个男孩。 The dictionary that / which my sister gave me last Sunday is very expensive.(宾语) 先行词关系代词 我姐姐上周星期天给我的那本字典很贵。 The woman is his mother whose name is Linda Brown. (定语) 先行词关系代词 那个是他的母亲，名叫琳达·布朗。 That is the house where my father used to live.(状语) 先行词关系副词 那是我父亲曾经居住过的房子。 三、初中英语中的定语从句关系代词或关系副词的具体用法。 1. who指人（也可用that），在定语从句中作主语，也可作宾语。如： Yesterday I helped an old man who / that lost his way. （主语） 昨天我帮助了一位迷路的老人。 Mr Wang is the man (who / that / whom )you met in the zoo this morning.(宾语) 王先生就是今天早上你在动物里遇到的那个人。 注意：关系代词who指人,作宾语时，可用whom代替；作宾语时，关系代词可省略。作其它成分，关系代词则不能省略。 2. whose指人，也可指物。在定语从句中作定语。 The boy whose mother is ill is staying at home to look after her today. 其母亲生病的那个男孩今天呆在家里照顾她。 I have a story book whose cover is red. 我有一本封面是红色的故事书。 3. which指物（也可用that），在定语从句中作主语，也可作宾语。如： Football is a game which / that is liked by most boys. （主语） 足球是被大多数男孩喜欢的运动。 I don’t believe the news which / that Tom won the game. (宾语)
英语中定语从句的基本用法(一) 摘要]本文通过实例浅析了英语中定语从句的基本 用法,如有不当之处,望大家批评指正。 关键词]定语从句用法宾语主语 英语,作为一门学科,每天有很多人在其中徜徉,可是也有 很多人虽为它倾注了很多精力却依然觉得举首无措?的确,在 英语中有很多的学问,需要我们去了解和掌握,下面就其中的某 个方面——定语从句,通过实例,分析一下它的基本用法,和大 家一起学习。 在句子中用作定语的从句称为定语从句。定语从句通常位 于它所修饰的名词或代词之后,这种名词或代词称为先行词。引导定语从句的关联词为关系代词和关系副词。关系代词在定语 从句中可以用作主语、宾语、表语、介词宾语和定语等等;关系副词在定语从句中只用作状语。 I.由关系代词who,whom,whose,which,that引导的定 语从句。 i.who代替人,在从句中作主语。 e.g.Amanwhodoesn’ttrytolearnfromotherscannot hopetoachievemuch. 一个不向别人学习的人是不能指望有多大成就的。 ii.whom代替人,在从句中作宾语,通常可以省略。 e.g.Theengineerwhomwemetyesterdayhaveworked outanewautomaticdevice. 我们昨天碰到的工程师研制出了一种新型的自动化装置。 iii.whose代替人或物,在从句中作定语。 e.g.MadamCurieisagreatscientistwhosenameis knownallovertheworld. 居里夫人是一位世界闻名的伟大科学家。Theyliveinthehousewhosedoorandwindowsareall broken. 他们住在一间门窗都已破败不堪的房子里。 iv.which代替物,在从句中作主语、宾语或介词宾语。作宾 语时,通常可以省略。 e.g.Adirectcurrentisacurrentwhichflowsinone directiononly. 直流电是沿着一个方向流动的电流。Themusictowhichwelistenedlastnightwaswrittenby myfather. 我们昨晚欣赏的音乐是由我父亲写的。 v.that代替人或物。在从句中作主语或宾语,但不能作介 词宾语。作宾语是通常可以省略。 e.g.HeistheonlyoneamongusthatknowsEnglish. 他是我们中间唯一懂英语的人。ThecarthatalmostcrashedintomebelongedtoBrown.
初中英语分类练习 ——定语从句 【复习目标】 ▲掌握定语从句的意义及作用。 ▲区别各类引导词。 【课前准备】 ●要求学生用定语从句造五个句子。 【知识要点】 在复合句中，修饰名词或代词的从句叫定语从句，被修饰的名词或代词叫先行词，引导定语从句的有关系代词who, whom, whose, which, that等和关系副词where, when, why等，关系代词和关系副词在定语从句中担任句子成份。 1.由who引导的定语从句中，who用作主语，如：This is the boy who often helps me. 2.由whom引导的定语从句中，whom用作宾语，如：The man whom you are waiting for has gone home. 3.由whose引导的定语从句中，whose用作定语，如：Do you know the girl whose skirt is white? 4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如： The room in which there is a machine is a work shop. The river which is in front of my house is very clean. 实用文档
This is the pen which you want. 注意： (1)whom, which用作介词宾语时，介词可放在whom、which之前，也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如：He is the very person whom we must take good care of. (2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I have lost my bag, which I like very much. (3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。 5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如： The book that I bought yesterday was written by Lu Xun. 注意在下面几种情况下必须用that引导定语从句。 (1)先行词是不定代词all, few, little, much, something, nothing, anything等，如： All that we have to do is to practise English. (2)先行词被序数词或形容词最高级所修饰，如 The first letter that I got from him will be kept. (3)先行词被all, any, every, each, few, little, no, some等修饰，如 I've eaten up all the food that you gave me. 实用文档
从句 从句按其在主句中的句法功能可分为三类: 即名词性从句、形容词性从句(即定语从句)和副词性从句(即状语从句)。 引导从句的词称作关联句. 一、名词性从句 引导这些名词性从句的关联词包括: 从属连词that, if, whether; 连接代词 who,whoever,whom,whomever,which,whichever,what,whatever,wh ose; 连接副词where, when, why, how。 其中, 从属连词只起连接作用, 在从句中不充当任何句法成分, 而连接代词和连接副词既起连接作用, 在从句中又充当一定的成分. That Owen should have married his cousin is not at all surprising. The fact is that he didn't go to the dinner party. I don't know if he will attend the meeting. Have you heard the news that Mary is going to marry Tom? 你听说玛丽要和汤姆结婚的消息了吗?(that引导同位语从句) [提示]
1. 在含有主语从句的复合句中, 为保持句子平衡, 常用it作形式主语,而将真正的主语从句置于句末. It's well-known that water is indispensable to life.(形式主语) 2. 为保持句子平衡, that引导的宾语从句也常用it代替, 而将真正的宾语从句置于主句句末。这常常出现在主句有形容词或分词作宾语补足语的情况下。 He made it quite clear that he preferred to live here. 3. 从属连词whether和if都作“是否…”解, 但if不可引导主语从句和表语 从句。whether可与or(not)连用, 而if不可以。 I don't know whether (if) she is at home. Whether she comes or not makes no difference. 4. that和what引导名词性从句的区别: that在从句中不充当成分,而what在从句中充当一定的成分, 如主语、表语、宾语等。that可省略, what则不可省。 He always means what he says. She suggested (that) he do it at once. 5. 同位语从句大多由从属连词that引导, 常跟在下列名词后面, 如fact, idea, opinion, news, hope, belief等, that不可省。同位语从句一般用来解释说明这些名词的具体含义和内容。 We are familiar with the idea that all matter consists of atoms. The news that we are invited to the conference is very encouraging.
一、基本概念： 在复合句中，修饰某一名词或代词的从句叫定语从句。如： Do you know the man who spoke at the meeting just now? That is the house where he lived ten years ago. 定语从句所修饰的词叫先行词；定语从句一般用关系代词或关系副词来引导，关系词放在先行词与定语从句之间起连接作用，同时又作从句中的一个成分。 引导定语从句的关系代词有：that, who, whom, whose, which; 关系副词有：when, where, why. 二、关系词的用法： （一）关系代词的用法： 1．作主语用who, which和that, 如： He is the man who/that lives next door. The train which/that has just left is for Shenzhen. 2．作宾语用whom, who, which, that, 如： The man (whom/who/that) we have just seen is a famous writer. Where is the book (which/that) I bought last week? 注：在非正式文体中，用于指人的关系代词who whom, that 通常可以省略，但在正式文体中通常用whom, 不可省略；用于指物的关系代词which和that 在非正式文体中也通常省略，但在正式文体中一般不省略。 3．作定语用whose, 如： (a) He is the man whose car was stolen last week. (b) It was a meeting whose importance I did not realize at that time. 注：“whose +名词中心词”这一结构在定语从句中既能作主语（如上a句），又能作宾语（如上b句）。whose 的先行词常用来指人，但有时也可以用来指具体事物或抽象概念，这时可以与of which 结构互换，词序是：“名词+of which”，如： They came to a house whose back wall had broken down.. (= the back wall of which) He’s written a book the name of which I’ve completely forgotten. (= whose name) 4．作表语只用that ，它既可以指人，也可以指物，但时常省略。如： He is no longer the man that he used to be. This is no longer the dirty place (that) it used to be. （二）关系副词的用法： 1．when 指时间，在从句中作时间状语，它的先行词通常有：time, day, morning, night, week, year 等。如： I still remember the time when I first became a college student. Do you know the date when Lincoln was born? 注：when时常可以省略，特别是在某些句型和某些时间状语中。如： Each time he came, he did his best to help us. But help never stopped coming from the day she fell ill. 2．where指地点，在从句中作地点状语。它的先行词通常有：place, spot, street, house, room,
英语定语从句用法总结 定语从句，一个简单句跟在一名词或代词后关系代词的用法：1. 作主语用who, which和that, 如： He is the man who/that lives next door. The train which/that has just left is for Shenzhen. 2. 作宾语用whom, who, which, that, 如： The man we have just seen is a famous writer. Where is the book I bought last week? 注：在非正式文体中，用于指人的关系代词who whom, that 通常可以省略，但在正式文体中通常用whom, 不可省略;用于指物的关系代词which和that 在非正式文体中也通常省略，但在正式文体中一般不省略。 3. 作定语用whose, 如： It was a meeting whose importance I did not realize at that time. 注：“whose +名词中心词”这一结构在定语从句中既能作主语 He’s written a book the name of which I’ve completely forgotten. 4. 作表语只用that ，它既可以指人，也可以指物，但时常省略。如： He is no longer the man that he used to be.
This is no longer the dirty place we met yesterday. 3. why指原因或理由，它的先行词只有reason。如： That is the reason why he is leaving so soon. 注：why时常也可以省略。如： That is the real reason he did it. + which; where = in he arrived. The office where he works is on the third floor. This is the chief reason why we did it. 2. 当先行词是表时间的time, day等和表地点的place, house等时，一定要注意分析从句的结构，如果缺少主语或 宾语时，关系词应该用which或that, 缺少时间状语或地点 状语时，才能用when或where，试比较： I’ll never forget the day when my hometown was liberated. I’ll never forget the days which/that we spent together last summer. His father works in a factory where radio parts are made. His father works in a factory which/that makes radio parts. 3. when和where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。而why 只
Un itl 《 school life 》 Grammar (1) 定语从句(AttributiveClause) I根据初中所学知识，请用红笔标出下列表格中的定语 定语从句的定义及其作用： 定语从句是又称形容词性从句，在句子中起定语作用，修饰一个名词或代词，有时也可修饰一个句子.受定语从句修饰的词叫先行词.定语从句的作用和作定语的形容词、介词词组、分词词组相似，有时可以相互转换，例如：金发女孩可译作abl on degirl， agirlwithbl on dehair 或agirlwhohasblo ndehair。定语从句通常由关系代词 that/which/who/whom/which/as 或关系副词when/where/why 引导，这些词既指代主句中要说明的名词或代词，又充当从句中的某个句子成分。定语从句可分为：限制性定语从句和非限制性定语从句。 定语从句一般都紧跟在它所修饰名词后面，所以如果在名词或代词后面出现一个从句，根据它与前面名词或代词的逻辑关系来判断是否是定语从句。 川定语从句的必备三要素 1先行词(名词或代词) | relativepr on. (assub.,obj.,pred.) 2关系词 (that 指人或物/which 指物/who(m)指人/whose) 3关系词在从 句中充当成分ativeadv. (asadverbial) (whe n/where/why) 找出下列句中的定语从句；分析定语从句三要素 1.Youaretherightmanwhomwearelookingfor. 2.I ' vespentallthemoneythatwasgivenbymyparents. 3.Iwillneverforgettheday whenljoinedtheparty.
定语从句的基本用法 先请认真阅读下列各句，下列各句中的黑体部分均为该句所包含的定语从句： 1.This is the teacher who played basketball with us yesterday. 2.Tom is the boy whom they are looking for. 3.The house , which they built last year looks very new. 4.Physics is the most interesting subject that we learnt in the middle school. 从以上各句中我们可以看出定语从句是用来修饰它前面的名词或代词的，它起着修饰或限定作用。当然定语从句也可以用来修饰一个句子，在此我们不作讨论。定语从句分为限制性定语从句和非限制性定语从句。限制性定语从句所修饰的词是一个、一些或一类特定的人或事物，一般不能省略，拿掉后剩下的部分则没有意义，或者表述不清。非限制性定语从句则不然，它只对所修饰的词作进一步的说明，拿掉以后剩下的部分仍然可以成立，常常用逗号将其隔开。例如： This is the place where the Chinese Communist Party was founded. 此句中的定语从句是限制性定语从句。如果拿掉则This is the place.一句没有意义。 This message was left by Xiao Wang, who telephoned you just now. 此句中的定语从句是非限制性定语从句。如果拿掉则This message was left by Xiao Wang,一句仍有意义。 被定语从句修饰的词叫做先行词，引导定语从句的词称为关系代词或关系副词。常见的关系代词和关系副词有who, whom,that,whose,which,where,when,why等。现在我们侧重讨论如何使用这些关系代词和关系副词。如果关系代词在从句中作主语时一般不能省略，而作宾语时一般可以省略。 一，关系代词who, whom的用法。 1.who可以代替人（即它的先行词必须表示人），在从句中可以担任主语。也可以在 从句中担任宾语，但是它的前面不能带介词，如果带介词则必须使用宾格whom。 whom在从句中只能担任宾语。例如： a)This is the teacher who often tells us interesting stories in class. b)Mary is the girl who/whom Tom wants to marry. c)Mrs White is a teacher whom every student likes. d)She is the girl with whom I will go to Shanghai tomorrow. 2.在定语从句中当先行词表示人时who和that是通用的。例如： a)Miss Green is the new teacher who/that teaches us spoken English. b)John’s father is an engineer who/that came to see him last Wednesday. 但在下列情况下则宜用who 而不用that。
高中定语从句详解与练习 （一）定义及相关术语 1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。 2．先行词：被定语从句修饰的词叫先行词。 3．关系词：引导定语从句的词叫关系词。 关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等；关系副词有when, where, why等。 关系词通常有下列三个作用：A、引导定语从句；B、代替先行词；C、在定语从句中担当一个成分。例如： The man who is shaking hands with my father is a policeman. 该句中， who is shaking hands with my father 是定语从句，修饰先行词the man，“who”是引导定语从句的关系词，代替先行词the man，在定语从句中作主语。 （二）关系代词引导的定语从句 1．who 指人，在定语从句中作主语。 The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。Those who want to go to the museum must be at the school gate at 7 tomorrow morning. 想 去博物馆的人必须在明晨7点到大门口集合。 Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。That is the teacher who teaches us physics. 那就是教我们物理的老师。2．whom 指人，在定语从句中做宾语，常可省略。 Mr Liu is the person ( whom ) you talked about on the bus. 刘先生就是你们在公共汽车 上谈论的那个人。 Li Ming is just the boy ( whom ) I want to see. 李明正是我想要见的男孩。 The professor ( whom ) you are waiting for has come. 你正在等的教授已经来了。 The girl ( whom ) the teacher often praises is our monitor. 老师经常表扬的那个女孩是我 们的班长。 注意：关系代词whom 在口语或非正式文体中常可用who 来代替，也可省略。 The man ( whom / who )you met just now is my old friend. 3．Which 指物，在定语从句中做主语或宾语，做宾语时常可省略。 Football is a game which is liked by most boys. 足球是大多数男孩所喜欢的运动。 The factory which makes computers is far away from here. 制造计算机的那家公司离这儿很远。 He likes to read books which are written by foreign writers. 他喜欢外国作家写的书。 The house which is by the lake looks nice. 湖边的那幢房子看上去很漂亮。 This is the pen ( which ) he bought yesterday. 这是他昨天买的钢笔。 The film ( which ) they went to see last night was not interesting at all. 他们昨晚看的电影一点意思也没有。 4．That 指人时，相当于who 或whom；指物时，相当于which.。在定语从句中作主语或宾语，作宾语时常可省略。
定语从句用法总结 一.定义：定语由一个句子来充当，那么这个句子就叫做定语从句。 eg: The old town has narrow streets and small houses that are built close to each other.其中划线部分为定语从句。 二.分类：分为限制性定语从句和非限制性定语从句，还有间隔性定语从句。 eg: is the school (that/which)we visited last year. （限制性定语从句） weather turned out to be very good,which was more than we could expect. （非限制性定语从句） days are gone when physical strength was all you needed to make a living.（间隔性定语从句） ] 注：定语从句和非限制性定语从句的区别 限制性定语从句无逗号隔开、不可缺少、起修饰限制作用；而非限制性定语从句有逗号隔开、可有可无、起补充说明作用。 三.构成：定语从句有先行词、引导词和从句构成。 先行词是定语从句所修饰限制的名词或代词。 引导词是用来引导定语从句的关系代词或关系副词。 eg: The old town has narrow streets and small houses that are built close to each other. 此句中先行词为：narrow streets and small houses, ( 引导词为：that，定语从句为：that are built close to each other 四．基本原则 定语从句中不能出现与先行词在意义上相一致的词 is the book that I like it best .(it 与book指同一物，所以要去掉。) 五．定语从句中常见考点：
英语定语从句用法详解 在复合句中，修饰名词或代词的从句叫定语从句，被修饰的名词或代词叫先行词，引导定语从句的有关系代词who, whom, whose, which, that等和关系副词where, when, why等，关系代词和关系副词在定语从句中担任句子成份。 1.由who引导的定语从句中，who用作主语，如：This is the boy who often helps me. 2.由whom引导的定语从句中，whom用作宾语，如：The man whom you are waiting for has gone home. 3.由whose引导的定语从句中，whose用作定语，如：Do you know the girl whose skirt is white? 4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如： The room in which there is a machine is a work shop. The river which is in front of my house is very clean. This is the pen which you want. 注意： (1)whom, which用作介词宾语时，介词可放在whom、which之前，也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如：He is the very person whom we must take good care of. (2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I have lost my bag, which I like very much. (3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。 5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如： The book that I bought yesterday was written by Lu Xun. 注意在下面几种情况下必须用that引导定语从句。 (1)先行词是不定代词all, few, little, much, something, nothing, anything等，如： All that we have to do is to practise English. (2)先行词被序数词或形容词最高级所修饰，如 The first letter that I got from him will be kept. (3)先行词被all, any, every, each, few, little, no, some等修饰，如 I've eaten up all the food that you gave me. (4)先行词被the only, the very, the same, the last修饰时如 He is the only person that I want to talk with. (5)先行词既有人又有物时，如: They talked about persons and things that they met. (6)当句中已有who时，为避免重复，如：Who is the man that is giving us the class? 6.由when, where, why引导的定语从句，如: I don't know the reason why he was late. This is the place where we have lived for 5 years. I'll never forget the day when I met Mr Li for the first time. 注意：先行词是表示地点时，如果从句的谓语动词是及物的，就用that(which)，如果从句的谓语动词是不及物的，就用where引导。This is the house Which /that he has lived in for 15 years.(Where he has lived for 15 year.)
A good student A developing country A developed country A 5-star friend A man named Chuck A language widely used 定语从句：修饰某一名词或代词的主谓结构(完整的基本句子结构-----五种句型)。 ↓↓ （主句之中）先行词关系词+其它成分 ↓ 在定语从句中必须担当一个成分。 ↓ 定语从句中缺啥就补啥 定语从句(The Attributive Clause) ( (二)关系代词的作用 1. 关系代词：用来连接定语从句，并在从句中代表先行词的代词。 先行词是物：which that 先行词是人：who that ※由who, whom, whose引导的定语从句。这类定语从句中who用作主语，whom作宾语，whose作定语。 e.g. This is the man who helped me. The doctor (whom) you are looking for is in the room. Do you know the man whose name is Wang Yu? ※在定语从句中，若先行词指人，其关系代词可用who, whom, 也可用that。 e.g. The girl who/that is speaking at the meeting is our monitor. The boy (who/whom/that) you saw just now is my brother. 3. 关系代词的具体用法及作用 1).who指人，在从句中做主语。 如：The boys who are playing football are from Class One. Yesterday I helped an old man who lost his way. 2). whom指人，在定语从句中充当宾语，常可省略。 如：Mr. Liu is the person (whom) you talked about on the bus. Mr. Ling is just the boy whom I want to see. 注意：关系代词whom在口语和非正式语体中常用who代替，可省略。 如：The man who/whom you met just now is my friend. 3). which指物，在定语从句中做主语或宾语，做宾语时可省略
英语定语从句用法详解（初中） 在复合句中，修饰名词或代词的从句叫定语从句，被修饰的名词或代词叫先行词，引导定语从句的有关系代词 who, whom, whose, which, that等和关系副词where, when, why 等，关系代词和关系副词在定语从句中担任句子成份。 1.由who引导的定语从句中， who用作主语，如： This is the boy who often helps me. 2.由whom引导的定语从句中，whom用作宾语，如：The man whom you are waiting for has gone home. 3.由whose引导的定语从句中， whose用作定语，如： Do you know the girl whose skirt is white? 4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如： The room in which there is a machine is a work shop. The river which is in front of my house is very clean. This is the pen which you want. 注意： (1)whom, which用作介词宾语时，介词可放在 whom、which之前，也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如： He is the very person whom we must take good care of. (2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I have lost my bag, which I like very much. (3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。 5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如： The book that I bought yesterday was written by Lu Xun. 注意在下面几种情况下必须用 that引导定语从句。 (1)先行词是不定代词all, few, little, much, something, nothing, anything等，如： All that we have to do is to practise English. (2)先行词被序数词或形容词最高级所修饰，如 The first letter that I got from him will be kept. (3)先行词被all, any, every, each, few, little, no, some等修饰，如 I've eaten up all the food that you gave me. (4)先行词被the only, the very, the same, the last修饰时如 He is the only person that I want to talk with. (5)先行词既有人又有物时，如: They talked about persons and things that they met. (6)当句中已有who时，为避免重复，如： Who is the man that is giving us the class? 6.由when, where, why引导的定语从句，如: I don't know the reason why he was late. This is the place where we have lived for 5 years. I'll never forget the day when I met Mr Li for the first time. 注意：先行词是表示地点时，如果从句的谓语动词是及物的，就用 that(which)，如果从句的谓语动词是不及物的，就用where引导。This is the house Which /that he has lived in for 15 years.(Where he has lived for 15 year.)
定语从句用法归纳标准化管理处编码[BBX968T-XBB8968-NNJ668-MM9N]
定语从句用法归纳 篇一：定语从句的用法一、定语从句的有关概念所谓定语从句，就是在复合句中起定语作用以修饰主句中的名词或代词的从句。学习定语从句，首先要弄清两个重要概念——先行词和关系词。先行词是我们汉语中从来没有听过的一个新概念，它其实指的就是被定语从句所修饰的词。由于定语从句修饰名词或代词时，定语从句通常是后置的，所以人们就将放在定语从句前被定语从句修饰的名词或代词叫先行词。 那什么是关系词呢其实它就是用于引导定语从句的引导词。事实上，英语中的各类从句，不管性质如何，它们都需要有一个词来“引导”，正如人们给引导状语从句的词语取了个名字叫从属连词一样，人们也给引导定语从句的词语取了个名字，叫它关系词，因为它通常被放在先行词和定语从句之间起连接作用，以表明两者之间的修饰关系，同时它还在定语从句中充当一定的句子成分。二、定语从句中关系词与所修饰先行词的关系 为了更好地理解定语从句，我们还有必要研究一下关系词与先行词之间的关系。但在研究这种关系之前，我们先来看看关系词有哪些。根据关系词在定语从句中的作用，我们可以将关系词分为关系代词和关系副词两种。所谓关系代词就是指起代词作用的关系词，它们在引导定语从句的同时，还在定语从句中充当主语、宾语、宾语等，英语中比较常用的关系代词有that, which, who, whom, whose等。类似地，关系副词就是指起副词作用的关系词，它们在引导定语从句的同时，还在定语从句中充当状语等，英语中比较常用的关系副词只有三个，即when, where和why。许多初学定语从句的人弄不清关系词与先行词之间到底是什么关系。其实啊，关系词与先行词之间的关系很简单，简单得可以划一个等号。因为，关系词的含义在本质上等价于先行词，它与先行词指的就是同一个人或同一个事物。为便于理解，下面我们来看几个例子吧。I know the man who lives next door. 我认识住在隔壁的那个人。这是一个含有定语从句的复合句。句中的the man为先行词，who lives next door为修饰the man的定语从句；在定语从句中，who是关系词，它在定语从句中用作主语，从意义上说，它在