介词+关系词引导的定语从句

介词+关系代词”引导的定语从句

介词加关系代词引导的定语从句要注意以下几点：

1．“介词+ 关系代词”引导的定语从句时，介词的宾语只能用which（指物）和whom （指人），即：介词+which/whom。不能用that 和who。

.This is the teacher from whom we’ve learned a lot. 这就是从他那里我们学了很多东西的老师。

Great changes have taken place in the city in which we live. 我们所居住的城市发生了巨大的变化。

2．有时介词也可放在从句的末尾，这时关系代词可用which/that(指物)，

who/whom/that（指人），也可以省略。

. The situation (which/that ) we had got into was very dangerous. 我们当时的处境很危险。

The man (whom/who/that) you were talking to just now is my English teacher. 你刚刚和他谈话的那个人是我的英语老师。

3．当定语从句中的谓语动词短语是固定搭配，不可分割时，那么动词短语中的介词不能前置。

.This is the pen which I’m looking for. 这是我正在找的那支钢笔。

不能写成：This is the pen for which I’m looking.

4．定语从句也可由“名词/代词/数词+介词+which/whom”引出。

. That old man has two sons, one of whom is a doctor. 那个老人有两个儿子，其中一个是医生。

The house, the windows of which ( = whose windows = of which the windows) were damaged, has now been repaired. 窗子遭破坏的那栋房子现在已经修好了。

5．引导定语从句的关系副词(when, where, why) 可以用“介词+关系代词”代替。

.I’ll never forget the day when I joined the party. (when= on which). 我永远都不会忘记入党的日子。

The factory where my father works is in the east of the city. (where = in which). 父亲工作的那家工厂在城东。

None of us know the reason why Tom was absent from the meeting. (why = for which). 我们都不知道汤姆缺席会议的原因。

6．“复合介词短语+which”引导的定语从句，常与先行词用逗号隔开，而且定语从句常用倒装语序。

. He lived in a big house, in front of which stood a big tall tree. 他住在一幢大房子里，房前有一棵大树。

where引导的定语从句修饰抽象名词

where引导的定语从句修饰抽象名词。 一、where定语从句修饰抽象名词point You reach a point where medicine can’t help. 你已到了药物无法治疗的地步。 The crisis has reached a point where the receiver will have to be called in. 危机已达到非把破产管理人叫来不可的地步。 We have reached a point where a change is needed. 我们到了必须改一改的地步。 注：有时point也可以是具体的地点： Let the point where AB cuts CD be called E. 设AB线与CD线的相交点为E。 The accident happened at the point where the A15 joins the M1. 事故发生在A15与M1交叉的十字路口。 二、where定语从句修饰抽象名词case There are cases where the word “mighty” is used as an adverb. 在一些情况下，mighty一词可用作副词。 Today, we’ll discuss a number of cases where beginners of English fail to use the language properly. 今天，我们将讨论一些英语初学者对英语使用不当的问题。 三、where定语从句修饰抽象名词activity Those successful deaf dancers think that dancing is an activity where sight matters more than hearing. 那些失聪的成功舞蹈演员们认为，舞蹈是一种让人看胜过让人听的活动。 四、where定语从句修饰抽象名词situation He got into a situation where it is hard to decide what is right and wrong. 他陷入一种难以分辨是非的局面。 If you risk something important, you cause it to be in a dangerous situation where you might lose it. 你如果拿重要的东西去冒险，那你就是将它置于一种可能会失去它的危险境地。 五、where定语从句修饰抽象名词position It’s put me in a position where I can’t afford to take the job. 这使我陷入一种不能接受此工作的境地。 六、where定语从句修饰抽象名词job

“介词+关系代词”引导的定语从句

“介词+关系代词”引导的定语从句 请同学们先看下面的高考题： 1. Human facial expressions differ from those of animals in the degree ______ they can be controlled on purpose. A. with which B. to which C. of which D. for which 2. Last month, part of Southeast Asia was struck by floods, from ______ effects the people are still suffering. A. that B. whose C. those D. what 3. I saw a woman running toward me in the dark. Before I could recognize who she was, she had run back in the direction ______ she had come. A. of which B. by which C. in which D. from which 4. Last week, only two people came to look at the house, ______ wanted to buy it. A. none of them B. both of them C. none of whom D. neither of whom 【点拨】 ●“介词＋关系代词”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。在此结构中，关系代词指人时用whom，不可用who或that；指物时用which，不能用that；关系代词是所有格时用whose。但如果介词后置，则不受这种限制，关系代词还可以省去，尤其在口语中。如： 1) Do you know the girl to whom our teacher was talking? = Do you know the girl (that/who/whom) our teacher was talking to? 2) The school (that/which) my brother once studied in is very famous. = The school in which my brother once studied is very famous. 2.关系副词when，where，why可用“介词＋which”来代替。关系副词实际上是介词＋先行词。其中 when=表时间的介词（如：in，at,on,during等）+which； Where=表地点的介词（如：in，at,on,under等）+which； Why=表原因的介词（如：for）+which (1)当先行词表示时间，定语从句中缺少时间状语时，通常用关系副词when引导，此时也可选用表示时间的介词＋which来代替关系副词when。 I still remember the day when I came here. ( on the day =when) (2)当先行词表示地点，定语从句中缺少地点状语时，通常用关系副词where引导，此时也可选用表示地点的介词＋which来代替关系副词where。 This is the house where I lived last year. ( in the house= where) (3)当先行词为reason，定语从句中缺少表示原因状语时，通常用关系副词why引导，此时也可以用for which来代替关系副词why。 There are many reasons why people like traveling. (for the reasons =why) 注意： 1. 含有介词的短语动词一般不拆开, 介词仍放在短语动词的后面。如: look for, look after, take care of， pay attention to, look forward to 等。

定语从句及其引导词用法

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,

where引导定语从句的用法

Where引导定语从句,先行词不一定都表 示地点 1、We will discuss a number of cases __ beginners of English fail to use the language preperly、A、which B、as C、why D、where 2、He was driving so fast as to get himself into a dangerous situation ___he is likely to lose the control over his car、 A、which B、as C、why D、where 两道题都选where ,但就是case, situation都不就是地点,如何理解？ 在“先行词不就是表示地点的名词”的前提下,如何判断就是否使用关系副词where来引导定语从句的问题就是一个高频考点。就就是说,关系副词where 所指代的先行词不只就是表示地点的名词。

用Where引导定语从句,先行词不一定都表示地点按照通常的理解,当where 引导定语从句时,它的先行词就就是表示地点的名词,但事实并不就是我们想象的那么简单。很多情况下,where所指代的先行词并不表示地点。请瞧以下几个例句: Other research, where siblings have been asked to say who their mother and father favor, suggests that mothers do tend to show a preference for their first-born son, but fathers often show great affection for their youngest daughters、 1、Remember that the best relationship is one where your love for each other is greater than your need for each other、请记住,最深的感情关系表现为彼此间的爱超过彼此间的需要。

定语从句引导词的用法

定语从句引导词的用法 that 和Which 都可以指物，其用法区别： 相同点(Similarities) 1.这两个关系代词引导定语从句时，都可以指物； 2.在定语从句中都可作主语或宾语； 3.作宾语，并且前面无介词时都可省略。 The train that/which has just left is for Shanghai．刚开的那列火车是去上海的。(作主语) The book (that/which) you gave me is wonderful. 你以前给我的那本书好极了。(作宾语,可省略) 不同点(Difference) 1.以下情况常用that。 （1）当先行词是不定代词或被它们修饰时（all, something, anything, nothing, everything, none, any, some, few, little, much, many等）。 Is there anything that I can do for you有什么要我做的事吗 He answered few questions that the teacher asked．他几乎没有回答老师的那些问题。（2）当先行词被every, no, the only, the very, the right, the last, just修饰时。T hat‘s the only thing that we can do now. 目前我们只能这样了。 Those are the very words that he said. 那就是他的原话。 （3）当先行词被形容词最高级或序数词修饰时。 This is the most int eresting book that I’ve had. 这是我拥有的最有趣的书。 The first thing that should be done is to get some food．该做的第一件事是弄点吃的。 （4）当先行词是一个既指人又指物的并列词组时。 They were talking about the persons and things that they saw in the factory．（5）当关系代词在定语从句中作表语时。 China is not the country that it was．中国已经不是过去的中国了。 （6）当在以which开头的疑问句中时。 Which is the car that was made in Beijing 哪辆是在北京制造的车 2.以下情况常用which。

介词+关系词引导的定语从句

介词+关系代词”引导的定语从句 介词加关系代词引导的定语从句要注意以下几点： 1．“介词+ 关系代词”引导的定语从句时，介词的宾语只能用which（指物）和whom （指人），即：介词+which/whom。不能用that 和who。 .This is the teacher from whom we’ve learned a lot. 这就是从他那里我们学了很多东西的老师。 Great changes have taken place in the city in which we live. 我们所居住的城市发生了巨大的变化。 2．有时介词也可放在从句的末尾，这时关系代词可用which/that(指物)， who/whom/that（指人），也可以省略。 . The situation (which/that ) we had got into was very dangerous. 我们当时的处境很危险。 The man (whom/who/that) you were talking to just now is my English teacher. 你刚刚和他谈话的那个人是我的英语老师。 3．当定语从句中的谓语动词短语是固定搭配，不可分割时，那么动词短语中的介词不能前置。 .This is the pen which I’m looking for. 这是我正在找的那支钢笔。 不能写成：This is the pen for which I’m looking. 4．定语从句也可由“名词/代词/数词+介词+which/whom”引出。 . That old man has two sons, one of whom is a doctor. 那个老人有两个儿子，其中一个是医生。 The house, the windows of which ( = whose windows = of which the windows) were damaged, has now been repaired. 窗子遭破坏的那栋房子现在已经修好了。 5．引导定语从句的关系副词(when, where, why) 可以用“介词+关系代词”代替。 .I’ll never forget the day when I joined the party. (when= on which). 我永远都不会忘记入党的日子。 The factory where my father works is in the east of the city. (where = in which). 父亲工作的那家工厂在城东。 None of us know the reason why Tom was absent from the meeting. (why = for which). 我们都不知道汤姆缺席会议的原因。

非限制性定语从句的引导词

、先行词指人,在句中作主语who: John,who is only five,has an inborn talent for music. (约翰是一外5岁大的孩子,有着天生的音乐才能。) 2、先行词指人,在句中作宾语whom: His wife,whom you met at my home,was a teacher. (他的妻子，就是你在我家遇见的那个，是一位老师。) 3、先行词指物,在句中作主语或宾语which: Her house,which was built a hundred years ago,stood still in the earthquake.(那座房子在地震中依然耸立，它是一百多年前建造的。) 注意：无论先行词指人或者指物,在句中作主语或者作宾语，非限制性定语从句的引导词都不能用that。 4、先行词在句中作定语，无论指人或者指物,引导词都用whose: The girl,whose name is Kate,is the top of the students in our school.(那个女孩是我们学校最优秀的学生，她的名字叫Kate。) The book,whose cover is red,is mine.(封面是红色的那本书是我的。) 5、先行词指物，在句中作时间状语用when： The sports meeting will be put off till next month,when we will have made all the preparations.(运动会将被推迟到下个月，那时我们做好一切准备。) 6、The next day we arrived in New York,where we were inerviewed on the radio.（第二天我们到达纽约，在那里我们接受了电台的采访。） 7、如果先行词作介词的宾语，先行词指人，介词提前的结构是：介词＋whom；先行词指物，介词提前的结构是：介词＋which: President Wilson,with whom he had not the same intimate relations,is treated much less sympathetically.(威尔逊总统与他没有同样的亲密关系，所以就没有被很同情地对待。) The Second World War,in which millions of people were killed,ended in 1945.(第二次世界大战造成数百万人的死亡，于1945年结束。) 8、as也可以引导定语从句，常与such连用： Such people as you describe are rare nowadays.(象你所描绘的那种人现在已经很少见了。) Let's disscuss only such questions as concern us.(让我们只讨论那些和我们有关的问题吧。) 注意：the same that+从句，意思是：正是那一个人或物；the same as+从句，意思是：就像某个人或物： He is the same man that you are looking for.(他就是你要找的那个人。) He is the same man as you met in the street.(他很象你昨天在街上遇见的那个人。实际上并不是那个人。) This is the same pen that I lost yesterday.(这就是我昨天丢失的那支笔。) This is the same pen as I lost yesterday.(这很像昨天我丢失的那支笔。)

最新如何选择定语从句的引导词_非常有用!

如何选择定语从句的引导词_非常有用!

如何选择定语从句的引导词? *限制性定语从句 限制性定语从句修饰先行词，对先行词起修饰作用，紧接先行词之后，无逗号，若省去，原句意思不完整。引导定语从句的关系代词有 who,whom,whose,which,that等。who,whom,whose用于指人，whose有时也可指物，相当于of which；which用于指物；that既可指人也可指物，但只用于限制性定语从句中。关系代词除了引导定语从句，替代先行词外，还在从句中 担任主语、宾语、定语等。 *非限制性定语从句 非限制性定语从句既可修饰先行词，也可修饰整个主句，起补充说明作用，与主句之间有逗号隔开，若省去，原句意思不受影响。不可用that引导非限制性 定语从句。关系词不可省略。 一、定语从句的引导词有关系代词who， whom，whose，which，that， as；关系副词when， where，why。定语从句中引导词的选用主要看先行词在定语从句中作什么成分或者是定语从句中缺什么成分。 1．定语从句中缺主语，修饰人时用who ／that，修饰物时用which ／that引导。如： Is this the factory which ／that makes TV sets？ The man who ／that visited our school is from Australia．

2．从句中缺宾语，修饰人时用 who ／whom ／that或省略引导词；修饰物时用which ／that或省略引导词。如： Gone are the days which ／that we spent together in the village． He is the man who ／whom ／that I think to be worthy of our praise． 3．从句中缺时间状语，用when或介词＋which引导。如： The day finally came when ／on which I was given a job． We'll put off the outing until next week，when we won't be so busy． 4．从句中缺地点状语，用where或介词＋which引导。如： Please put the letter on the desk where ／on which he can easily find it．5．从句中缺原因状语或先行词是 reason时，引导词用why ／for which ／that。如： This is the reason why ／for which ／ that he didn't come to the meeting．6．从句中缺定语，人和物都用 whose引导。如： A child whose parents are dead is called an orphan． Please pass me the dictionary whose cover is black． 7．当先行词是way时，其定语从句的引导词用in which ／that。如：

which引导的定语从句的用法

which引导的定语从句的用法 WHICH可以引导定语从句，修饰表示事物的先行词，在定语从句中充当主语、宾语或者表语。例如：HEWASREADINGABOOK， WHICHWASABOUTWAR.他正在读一本关于战争的书。（关系代词WHICH在修饰BOOK的定语从句中充当主语。） HEWASREADINGABOOK，WHICHHEHADBOUGHTFROMLONDON.他正在读一本书，这本书是从伦敦买回来的。（关系代词WHICH在修饰BOOK的定语从句中充当宾语。） WHICH引导非限定性定语从句时有一个特殊用法，即它所引导的非限定性定语从句修饰主句中更多的部分甚至整个主句（这时被定语从句所修饰的“先行词”要作广义理解），WHICH仍在定语从句中作主语、宾语或表语。例如：HESETFREETHEBIRDSHAPPILY， WHICHWASACELEBRATIONFORHISSUCCESS.他开心地把鸟放了，这是对他成功的一种庆祝。 把非限定性定语从句“WHICHWASACELEBRATIONFORHISSUCCESS”的先行词视为主句中的“THEBIRDS”显然不符合整句的语境，被 “WHICHWASACELEBRATIONFORHISSUCCESS”所修饰的是整个主句，WHICH所引导的这类特殊的非限定性定语从句对主句所叙述的情况进行某种意义的补充说明，WHICH常可译为“这一点，这件事”。 ［考题1］ YOUCANFINDWHATEVERYOUNEEDATTHESHOPPINGCENTRE， ____ISALWAYSBUSYATTHEWEEKEND.（2006上海春） A.THAT B.WHERE C.WHAT D.WHICH ［答案］D

介词 关系词引导的定语从句

介词+关系代词引导的定语从句 【知识点1】 直接位于介词之后的关系代词只能是which或whom，构成介词+which（指物）；介词+whom （指人）两种结构。 【例】The man to whom you talk just now is a famous runner. 【例】The service about which the students complain a lot should be improved. 【例】He is a library assistant from whom I borrowed some books. 【例】It is a famous school from which he graduated 3 years ago. 【例】The chair on which he is sitting now is made of wood. 【知识点2】 直接位于介词后面的关系代词不能省略，但如果将介词移于句子末尾而不位于关系代词之前时，可省。 【例】The man (who/that/whom) you talk to just now is a famous runner. 【例】The service (which/that) the students complain about a lot should be improved. 【例】He is a library assistant (whom/that/who) I borrowed some books from. 【例】It is a famous school (which/that) he graduated from 3 years ago. 【例】The chair (which/that) he is sitting on now is made of wood. 【知识点3】 关系副词when, where, why 可以相应地转化为：介词+which结构。 【例】This is the house where I lived two years ago. =This is the house in which I lived two years ago. 【例】Do you remember the day when you joined our club? =Do you remember the day on which you joined our club? 【例】I don’t know the reason why he said so. =I don’t know the reason for which he said so. 【知识点4】 有一些动词短语中的介词是固定搭配，不可以拆开，一般还是放在动语之后，不提前： 【例】He is the student (who/whom/that) the teachers are looking for. 【例】The number of the children (who/whom/that) she takes care of is 30. 【知识点5】 注意复杂介词短语+which或whom引导的定语从句，是高考考查热点。 【例】They finally climbed up the mountain, on top of which many strange birds were seen. 【例】Look at the photo. This is Mr. Green, in front of whom sit three students. 【知识点6】 不定代词+of+ which/ whom 引导的定语从句可化为of+ which/ whom+ 不定代词结构；这也是高考常考点。其中用到的不定代词有some, any, none, both, all, many, a few, few, a little, little, either, neither, one, 等等。 【例】There are 40 students in our class, most of whom（=of whom most）like English.

定语从句特殊引导词as, but, than

As、but和than引导定语从句 As、but和than通常都是以介词、连词等身份被大家所熟知，而它们居然可以摇身一变成为关系代词，在定语从句中做主语和宾语。 1. As As最基本的用法是做连词“与……一样”表示同级的比较，介词“作为”。下面是它特殊的用法： 例句：1. He does not possess such qualifications as are necessary to be an actor. 他并不具备一名演员应有的资格。 2. She bought the same skirt as I had bought last week so I need to talk to her about it so we don't wear them the same at the same time. 她买的那条裙子和我上周买的一模一样，我要和她商量一下，免得“撞衫”。 上面两个例句中定语从句都使用了as作为关系代词，我们可以发现例句1中含有“such…as…”，例句2中含有“the same…as…”，由此可见，我们到底要不要使用as来做关系代词，可以根据句中是否出现了与as搭配的短语进行判断。 3. The murderer who had killed several people on the campus was finally arrested by the police, as was expected. 如我们所愿，那个在校园杀害数人的杀人犯终于被警方逮捕。该句中并未出现与as搭配的短语，此处的用法是as做关系代词指代前面整个句子，在定语从句中做主语。 2. But大家熟悉的but基本都是以转折连词的身份出现，但是它还兼职在做定语从句中的关系代词。 例句：There is no man but errs. 没有任何人能够不犯错误。句中的先行词是man，but自然就充当了关系代词的角色，但我们从句意中可以发现，but带有一层否定的意思，相当于“who not”。那么我们可以把例句转换为：There is no man who does not err. 但要注意，只有在but 前有先行词的时候才有此用法！请比较下面这个例句：He did nothing after graduation but spend his parents' money. 他毕业之后无所事事，就知道花爸妈的钱。该句中but是介词的用法，有转折的意义。 3. Than即可以做连词也可以做介词的than都是比较的含义，它居然也可以用在定语从句中。例句：1. Parents had better not give kids more money than is needed. 父母最好别给孩子们太多的钱，够用就可以了。 2. Don't order more food than can be finished. 别点太多吃的，会吃不完的。此处Than以主语的形式出现在定语从句中，其实省略了what，than也就等于than what。例句也可以写作：Parents had better not give kids more money than what is needed 例句2则可以转换为：Don't order more food than what can be finished 不管是做介词、连词也好，在定语从句里做关系代词也罢，than 都表示了一个比较的关系，从上述两个例句来看，句中都出现了比较级的形式。 一、but可被看作关系代词，引导定语从句，在句中作主语，在意义上相当于who not或that not，即用在否定词或具有否定意义的词后，构成双重否定。 如：①There is no mother but loves her children．没有不爱自己孩子的母亲。 ②There was no one present but knew the story already．在场的人都知道这个故事。 二、than作关系代词时，一般用在形式为比较级的复合句中，其结构为形容词比较级（more）．．．than＋从句，than在从句中作主语，相当于that，代表它前面的先行词。（这时，它兼有连词和代词的性质，也有学者认为这种用法的than是连词，后面省略了主语what。）如：①The indoor swimming pool seems to be a great deal more luxious than is necessary．室内游泳池过于豪华。 ②He got more money than was wanted．他得到了更多的钱。 定语从句中的两个特殊关系代词 定语从句是中学阶段一个非常重要的语法项目，在各类考试中都能看到它的身影。它的基本用法，想必读者朋友们已经掌握了吧！现由笔者为大家再介绍两个定语从句中的关系代词——but和than，以飨读者。

关系代词引导的定语从句

测试科目：高一英语备课时间：50分钟备选题目：关系代词引导的定语从句 备课方案如下 关系代词引导的定语从句 定义理解 定语：对名词或代词起修饰或限定作用的词、短语或句子。先行词：被定语从句修饰的名词或代词。 关系词：引导定语从句的词，可分为关系代词和关系副词。 例句分析： The woman (whom you saw in the park) is our English teacher. 先行词定语从句 分析：关系词whom 主句The woman is our English teacher 定语从句whom you saw in the park

关系代词的主要用法 1.关系代词指物时，关系代词用which或that China is a country which has a large population. 2.关系代词指人时，关系代词用who/whom。若后面 紧跟名词表所属，则用whose The boy who is in red over there is my brother. The boy whose clothes is red is my brother. 3.以下四种情况只能用that 1）当先行词是all,much,little,few等不定代词时You should hand in all that you have. I did nothing that might hurt you. 2）当先行词是序数词、形容词、最高级或先行词有only,the same,the very,the last等词修饰时 This is the best film that has been shown so far in this city. Chatting is the only thing that interested her most. 3）当先行词既有指人又有指物的词时 She took photographs of the things and people that she was interested in. 4）当主句是以who或which开头的特殊疑问句时Who is the person that is standing at the gate.

介词引导的定语从句 -答案

介词+关系代词引导的定语从句 “介词+关系代词”引导的定语从句是定语从句的一种复杂形式，这类定语从句的关系代词主要有which ,whom , whose , 它们既可以引导限定性定语从句，也可以引导非限定性定语从句。关系代词前该选用什么样的介词，要根据不同的语境、习语、惯用法等来决定。一．介词选择的主要标准 1.介词与定语从句的先行词是一种习惯性搭配 Human facial expressions differ from those animals in the degree to which they can be controlled on purpose.人类的面部表情和动物的面部表情就可控制的程度来说是不一样的。( to a degree ) The English play in which my students acted at the New Year’s party was a great success.那场在新年晚会上我学生参加表演的英语剧很成功。( in the play ) The schools themselves admit that not all children will be successful in the jobs for which they are being trained.学校本身承认，并不是所有的孩子都能在他们所接受的培训的职业成功。( be trained for the job ) 2.介词与定语从句中的动词是一种习惯性搭配 Who is the man with whom our teacher is shaking hands? 我们的老师与之握手的那个男士是谁？( shake hands with sb. ) Last month , part of Southeast Asia was struck by floods , from whose effects the people are still suffering. 上个月，东南亚的部分地区发生洪水，人们还在遭受着洪水所带来的影响。(suffer from sth. ) 3.介词与定语从句中的形容词构成一种习惯性的搭配 Ours is a beautiful country , of which we are greatly proud . 我们的国家是一个美丽的国家，我们为之感到很自豪。( be proud of ) The woman to whom Spielberg is married is an actress. 同斯皮尔伯格结婚的女人是一位演员。( be married to ) The woman to whom he was engaged was a doctor. 他与之订婚的那个女士是位医生。(be engaged to ) 4.有时关系代词前用什么介词，要根据句子的意思来决定，此时不但要注意其前的搭配，也要注意其后的搭配 I was a woman running toward me in the dark. Before I could recognize who she was, she had run back in the dark.Before I could recognize who she was , she had ran back in the direction from which she had come.看见一位妇女在黑暗中像我走来，我还没来得及认清她是谁，她已经从她来的方向跑回去了。（如果仅注意先行词，很容易受习惯心里的影响而使用in this direction 的搭配，但考虑到语境后的come ，则应该使用from。） He was educated at the local high school, after which he went on to Beijing University. 他在当地一所高中上学，之后他上了北京大学。（after which 的意思就是“在当地一所高中接受完教育之后”）。 In the office I never seem to have time until after 5:30 pm. by which time many have got home.在 办公室我好像总是没时间，只有等到下午五点半，而那个时候大家都已经回家了。（此句不能受at 5:30 pm 的通常表达的影响而选用介词at, 而应该依据整个句子的语意来确定介词。）5.表示“所有格”或“整体与部分关系”时，用介词of The journey around the world took the old sailor nine months, of which the sailing time was 226 days.这次环球旅行老水手用了9个月，其中航行的时间是226天。 The factory produces half a million pairs of shoes every year, 80% of which are sold abroad. 这个工厂每年生产50万双鞋，其中的（指50万双鞋）80%销往海外。 I was told that there were about 50 foreign students studying Chinese in the school, most of whom