but和than引导的定语从句
由于长期模式化的学习，很多学习者对于定语从句的引导词就有了一种定势的理解，所以无法理解but和than可以充当定语从句中的关系词。作为特殊的关系代词，but和than 在定语从句中也是充当主语或宾语。But引导的定语从句相当于一个否定的结构
who/which/that...not,表示某某人或事物不....；than引导的定语从句必须出现在比较级中，同时意义上保留“比”的意思。
but引导的定语从句
前文已经说过but引导定语从句时的功能及其含义，以下有两个例句，在翻译时一定要注意将but翻译成who/that/which...not
例1：Don’t be confined by rules. There is no rules but have exceptions.
不要让规则限制了你，没有规则没有例外。
注释：此时but在从句中充当主语，从句相当于there is no rules which/that do not have exceptions。
例2：There is no man but admires her generosity and kind heart.
没有人不赞赏她的慷慨和好心。
注释：此时but在从句中充当主语，相当于there is no man who does not admire her generosity and kind heart。
than 引导的定语从句
than引导定语从句一定出现在比较级当中，所以在理解上也要将than的意义放进去。
例1：Children today are likely to have less supervision at home than was common in the traditional family structure. (此时than在句中充当主语)
与传统家庭结构相比，现代家庭结构中的孩子受到的管教表少了。
例2：He soon found it easy to make more money by thieving than his father had done by a lifetime of honest work. (than在句中充当done(made)的宾语)
很快他就发现，通过盗窃所得的钱要比他爸爸一辈子辛勤劳动挣来的钱多得多。
结语：对于but和than引导的定语从句，很多同学感觉难以理解，也很难从根本上去领悟。所以，在学习的时候，大家不要生搬硬套过去的语法规则，而是要从心里去接受这一新的语法知识，并且在见到相应句子时适当积累，逐步地达到内化的效果。
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】
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
when 和 where 引导定语从句的用法 定语从句既是英语语法的一个重点，同时又是一个难点。说它是难点，主要难在两点上：一点是如何正确判断什么样的汉语句子要译为英语的带定语从句的复合句；另一点是定语从句的引导词较多(包括关系代词who, that, which, as 和关系副词when, where, why)，而且其用法也较复杂。那么到底什么情况下用when和where来引导定语从句呢？它们又该怎么用呢？下面就举例说明： 一、when：当主句中的先行词(即主句中被后面定语从句修饰的词)是表示时间意义的名词时，它只能作定语从句的时间状语，放在定语从句句首。如果定语从句的引导词是作该定语从句的主语或宾语，则要改用关系代词that或which来引导。例如： The days when we used foreign oil are gone. 我们用洋油的日子一去不复返了。 I'll never forget the day when I was born. (=I'll never forget my birthday.) 我永远不会忘记我出生的日子。 It happened in November when the weather was wet and cold. 这事发生在天气又湿又冷的十一月。 In the years that (which) followed, Marx kept on studying English and using it. 在这之后的几年中，马克思继续学习和使用英语。(that作定语从句"that followed"的主语) The day (that) I always remember in all my life is my birthday. 我一生中最难忘的日子是我的生日。(that作定语从句"that I always remember in all my life"的宾语，that可以省略)
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
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。
一、从句是如何出题的？ 1. 时态 2. 考连接词 3. 考语言顺序 二、学好从句的两个基本条件 1. 时态 2. 从句的三个必须:①必须是句子；②必须有连接词；③必须是陈述句 三、状语从句、宾语从句、定语从句重点 1.如何判断何种从句 2. 从句的时态 3. 从句的连接词与扩展 4. 经典单选、从句与选词、长句子分析 四、如何判断三种从句 1. 状语从句无先行词 2. 宾语(表语)从句无先行词有动词或词组 3. 定语从句先行词多为名词或代词 一、When引导的定语从句与时间状语从句的区分 1. when的译法不同。在时间状语中，when 翻译成“当……的时候” I want to be a teacher when I grow up. 当我长大的时候，我要做一名老师。在定语从句中，when不翻译。I won't forget the day when he says he loves me. 我不会忘记他说爱我的那一天。 2. 在时间状语中，when从句前面或后面是句子；定语从句中，when 从句不能位于句首，且通常when前为表示时间的名词day、year等。 3. when在从句的作用不同。在时间状语从句中，when是连词，只起连接主句和从句的作用，不做从句的任何成分。不过when引导的时间状语从句修饰主句的谓语，做主句的时间状语。 在定语从句中，when是关系副词，在从句中代替先行词做从句的时间状语，修饰从句的谓语。 例1 I will always remember the days when I lived with my
grandparents in the country. 例2 I always remember the days in the country when I see the photo of my grandparents. 点评：例1意为“我会永远记得跟我祖父母一起住在乡下的那些日子”，其中when 引导的是一个定语从句, 修饰the days, when在从句中作时间状语。例2意为“当我看到祖父母的照片时，总是会想起在乡下的那些日子”，其中when 引导的从句并不修饰前面的名词the country，因此可判定为时间状语从句。 例1中的when可用in which替代，即从句可改为...in which I lived with my grandparents in the country. 例2中从句前有名词，但根据句意可 知并不是从句所修饰的对象，也不能用“介词+ which”来替代。 二、判断关系代词与关系副词 方法一：用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词；而不及物动词则要求用关系副词。例如： This is the mountain village where I stayed last year. 这是我去年呆过的山村。 I'll never forget the days when I worked together with you. 我永远不会忘记与你共事的日子。 判断改错： 1. This is the mountain village where I visited last year. 2. I will never forget the days when I spent in the countryside. 3. This is the mountain village （which）I visited last year.
定语从句 定语从句及相关术语 1.定语从句：定语从句是由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，相当于形容词，所以又称为形容词性从句，一般紧跟在它所修饰的先行词后面。 2.关系词：引导定语从句的关联词称为关系词，关系词有关系代词和关系副词。关系代词有that, whi ch, who, whom, whose, as等；关系副词有where, when, why等。关系词常有3个作用：1，引导定语从句。2，代替先行词。3，在定语从句中担当一个成分。 注：关系代词有主语.宾语之分。一般whom作为宾语。 4.定语：定语用来限定、修饰名词或代词的，是对名词或代词起修饰、限定作用的词、短语或句子，汉语中常用‘……的’表示。主要由形容词担任。此外，名词，代词，数词，分词，副词，不定式以及介词短语也可以来担任，也可以由一个句子来担任．单词作定语时通常放在它所修饰的词之前，作前置定语。短语和从句作定语时则放在所修饰的词之后，作后置定语。 先行词：被定语从句修饰的名词、代词称为先行词。 （一）限定性定语从句 一、关系代词（在句中作主语、宾语或定语） 1. that既可代表事物也可代表人，which代表事物；它们在从句中作主语或宾语，that在从句中作宾语时常可省略关系词，which在从句中作宾语也可以省略。[eg：this is the book （which）you want。]而且，如果which在从句中作“不及物动词＋介词”的介词的宾语，注意介词不要丢掉，而且介词总是放在关系代词which的前边，但有的则放在它原来的位置 2. which作宾语时，根据先行词与定语从句之间的语义关系，先行词与which之间的介词不能丢 3. 代表物时多用which，但在带有下列词的句子中用that而不用which，这些词包括当先行词是anyt hing, everything, nothing , none等不定代词时，或者是由every, any, all, some, no, little, few, muc h等修饰时等，这时的that常被省略还有先行词前有序数词或形容词最高级修饰时,或先行词就是序数词或最高级时.以及先行词中既有人又有物时.还有句中前面有which时,都只能用that 4. who和whom引导的从句用来修饰人，分别作从句中的主语和宾语，whom作宾语时，要注意它可以作动词的宾语也可以作介词的宾语 5. whose是关系代词，修饰名词作定语，相当于所修饰成分的前置所有格.它引导的从句可以修饰人和物, 当它引导的从句修饰物体时, 可以与of which 调换,表达的意思一样。 二、关系副词（在句中作状语） 关系副词=介词+关系代词 why=for which where=in/ at/ on/ ... which (介词同先行词搭配) when=during/ on/ in/ ... which (介词同先行词搭配) 1. where是关系副词，用来表示地点的定语从句。 2. when引导定语从句表示时间［注］值得一提的是，表示时间“time"一词的定语从句只用when引导，有时不用任何关系代词，当然也不用that引导。 By the time you arrive in London, we will have stayed there for two weeks. I still remembe r the first time I met her. Each time he goes to business trip, he brings a lot of living necessiti es, such as towels, soap, toothbrush etc。
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.
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、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。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。 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。 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。
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。
when，where，why引导的定语从句 when，where，why作为定语从句的引导词，总称为关系副词。下面用句子合并的方法分析它们的使用。 一、where引导的定语从句 请分析下面两个简单句： 句①I know a garden. 句②You can find wild strawberries there. 把句②变为句①的定语从句，句①中的agarden做定语从句的先行词。在句②中there指句①中提到的agarden也就是定语从句的先行词，there在句中做地点状语，因此要用where 引导定语从句，代替句②中的there，也就是说there就不能出现在定语从句中了。由此得到句③I know a garden where you can find wild strawberries. 句②还可以写作句④You can find wild strawberries in it(it指句①中的garden，“在花园中”要使用介词短语in the garden)。把句④变为句①的定语从句，因为it做介词in 的宾语，先行词是agarden，指物。在这种定语从句中介词常常提到定语从句的开始，这时关系代词只能使用which替代it，it就不能在定语从句中出现了。由此得到句⑤即：I know a garden in which you can find wild strawberries. 请把下面每组的两句话合并为一句，把第二句话变为第一句的定语从句。 第一组： This is the village. I was born there. →This is the village where I was born. 第二组： The lab is not far from here. The chemist often does experiments there. →The lab where the chemist often does experiments is not far from here.
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