◆英语谚语欣赏
1. He who knows nothing but pretends to know everything is indeed a good-for –nothing.
不懂装懂，一事无成.
千里之行，始于足下
2. It’s the first step that costs.
3. He that makes himself a sheep shall be eaten by the wolf. 甘当小绵羊，迟早要喂狼.
Ⅰ. 概念：
(1) 定语从句：在主从复合句中用作定语的从句叫定语从句。定语从句一般紧接在先行词(antecedent)后面。
(2) 先行词：被定语从句修饰的成份。先行词可以为一个词，短语，或整个主句。
(3) 引导定语从句的词叫关系词，分为关系代词和关系副词。
关系词的作用：
1) 引导定语从句，连接主句和从句，相当于一个连词；
2) 必在从句中作某个句子成份（可以做主语，宾语，表语，定语，状语）
常用的关系代词: that、which、who、whom、whose、as 、but (文语, 置于否定词之后没有……不……", 在从句中作主语，宾语)
=that/who…not…, "
常用的关系副词（在从句中只作状语）: when、why、where
The student who answered the question was John.
I know the reason why he was so angry.
The boy (whom) you are talking to is my brother.
I'd like a room whose window looks out over the sea.
定语从句三步：
第一找出先行词；
第二看先行词在定语从句中的语法功能（做主语、宾语或状语）；
第三选择合适的关系词。
Ⅱ. 几个关系代词的基本用法：
●that: 可指人或物；在定语从句中作主语，宾语，表语。(指人时，相当于who或whom；指物时，相当于which)(一般不用于非限制性定语从句; 不可置于介词后作宾语) 如：
1. A letter that/which is written in pencil is difficult to read. (主语)
2. Do you know the gentleman that/who spoke just now?
高一英语定语从句教案 一、基本概念 1. 定语从句： 修饰一个名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。 2. 先行词： 被定语从句修饰的名词 3. 关系词： 引导定语从句的关联词成为关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as；关系副词有where, when, why。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。 二、关系代词和关系副词的意义及用法 指人：who, that,(指人常用who,不常用that) 主语 指物：which, that 指人：whom, who, that（who常用在在非正式和口语体中） 宾语(关系代词作宾语时常可省略) 关系代词指物：which, that 定语：whose （whose + n.=of which + n. ） 关系词 时间：when 关系副词----状语地点：where = 介词+ which 原因：why 解题技巧：关键看从句缺何种成分 三、例句练习讲解 1.Yesterday I helped an old man ＿lost his way.昨天我帮助了一位迷路的老人。 2.The man ＿you met just now is my friend. 你刚才见到的那个人是我的朋友。 3.This is the pen ＿he bought yesterday. 这是他昨天买的笔。 4.He has a friend ＿father is a doctor. 他有个父亲是医生的朋友。 注意：whose指物时，常用以下结构来代替，例： 门坏了的那间教室很快就会被修好。 The classroom whose door is broken will soon be repaired. The classroom the door of which is broken will soon be repaired. 你喜欢那本封面是黄色的书吗？ Do you like the book whose cover is yellow? Do you like the book the cover of which is yellow? 5.I still remember the day ＿I first came to this school.我仍然记得第一次来到这学校 的那一天。 6.Shanghai is the city ＿I was born. 上海市我出生的地方。 7.Please tell me the reason ＿you missed the plane. 请告诉我你错过航班的原因。 注意：关系副词引导的从句可以由“介词+which”引导的从句替换 8.易错题：This is the mountain village (which) I visited last year. I'll never forget the days (which) I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词where, when联系在一起而做错题。
高中英语定语从句讲解及练习 定语从句是高中重点知识，也是高考常考点，大家也不容易掌握，这篇文章主要教你关系代词引导的定语从句 关系副词引导的定语从句判断关系代词与关系副词限制性和非限制性定语从句等内容，有例题讲解定语从句在句中做定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。 关系代词有：who, whom, whose, that, which等。 关系副词有：when, where, why等。 18.1 关系代词引导的定语从句 关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。 1）who, whom, that 这些词代替的先行词是人的名词或代词，在从句中作主语和宾语。例如： Is he the man who/that wants to see you? 他就是你想见的人吗？（who/that在从句中作主语） He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。（whom/that在从句中作宾语） 2）whose 用来指人或物，（只用作定语, 若指物，它还可以同of which互换）。例如： They rushed over to help the man whose car had broken down.那人车坏了，大家都跑过去帮忙。 Please pass me the book whose （of which）cover is green.请递给我那本绿皮的书。 3）which, that所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等。例如： A prosperity which / that had never been seen before appears in the countryside. 农村出现了前所未有的繁荣。（which / that在句中作宾语） The package （which / that）you are carrying is about to come unwrapped. 你拿的包快散了。（which / that在句中作宾语） 18.2 关系副词引导的定语从句 关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。 1）关系副词when, where, why的含义相当于\"介词+ which\"结构，因此常常和\"介词+ which\"结构交替使用。例如： There are occasions when （on which）one must yield.任何人都有不得不屈服的时候。 Beijing is the place where（in which）I was born.北京是我的出生地。 Is this the reason why （for which）he refused our offer?这就是他拒绝我们帮助他的理由吗？ 2）that代替关系副词，可以用于表示时间、地点、方式、理由的名词后取代when, where, why和\"介+which\"引导的定语从句，在口语中that常被省略。例如： His father died the year （that / when / in which）he was born.他父亲在他出生那年逝世了。 He is unlikely to find the place （that / where / in which）he lived forty years ago. 他不大可能找到他四十年前居住过的地方。 18.3 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： （错）This is the mountain village where I visited last year. （错）I will never forget the days when I spent in the countryside. （对）This is the mountain village （which）I visited last year. （对）I'll never forget the days （which）I spent in the countryside. 习惯上总把表地点或时间的名词与关系副词where, when联系在一起。此两题错在关系词的误用上。 方法二：准确判断先行词在定语从句中的成分（主、谓、宾、定、状），也能正确选择出关系代词/关
①阅读理解中的长难句； ②考关系词：语法填空（不给提示词）和短文改错（增删关系词、关系词用错）。 读句子，猜猜他是谁？ He is a player who is very famous in the world. Heplaysfootballwhichispopularallovertheworld. Heisamanwhosewifeisaworld-famoussinger. He lives in the country where the 2012 Olympic was held. Hewastheleaderoftheteamintheyearwhenthe18thWorld Cup washeld. Do you know the reason why he is so famous and successful? 定语从句
定语从句的概念 一、定语的概念 句子中修饰名词或代词的成分叫做定语。定语可以由形容词，名词，不定式，分词，动名词或从句来充当，且定语往往翻译为“…的”。 即学即练 指出下列句子中的定语由何种词句充当： ①I have a pretty dog. 答案：pretty形容词 ②He is in the reading room.答案：reading现在分词 二、定语从句的概念 在复合句中修饰名词或代词的从句叫定语从句。被定语从句修饰的词叫先行词（跑在前面的词），定语从句一般紧跟在它所修饰的先行词之后。在先行词和定语从句之间起连接作用的词叫关系词。1)定语从句的结构： 圈出每句中被修饰的名词。 2/ 9
He is a player who is very famous in the world. Heplaysfootball which ispopularallovertheworld. Heisamanwhosewifeisaworld-famoussinger. He lives in the country where the 2012 Olympic was held. Hewastheleaderoftheteamintheyear when the18thWorld Cup washeld. Do you know the reason why he is so famous and successful? 指出如下句子的先行词、关系词和定语从句： The boy who broke the window is Tom ’s brother. He was the leader of the team in the year when the 18th World Cup was held. 先行词：the boy、the year 关系词：who、when 定语从句：who broke the window is Tom’s brother.when the 18th World Cup was held. 2)为什么有不同的关系词？ He is a player who is very famous in the world. 拆分：He is a player. The player is very famous in the world.（主语） 拆分句子，并观察先行词在从句中充当什么成分。 I have never seen the girl who you mentioned yesterday. She is the teacher who we want to visit. 即学即练
定语从句 考纲要求： 掌握定语从句的基本知识；区分定语从句和名词性从句的性质和用法。 在具体的语境中考查非限制性定语从句的引导词以及“介词+关系代词”引导的定语从句；设置语境，考查抽象地点或时间概念的名词作先行词时关系副词的选择，甚至通过增加先行词的隐蔽性来增加试题的难度；考查定语从句的特殊句型，即：特定词汇+of whom/which 引导的定语从句。 复合句中修饰名词和代词的从句叫做定语从句，被修饰的名词或代词叫先行词。引导定语从的连接词有关系代词who, whom, that, which, whose, as 和关系副词when, why, where等。这些关系代词或关系副词有替代先行词，连接主句和从句，并在从句中充当成分三个作用。定语从句有限制性定语从句和非限制性定语从句两类。 限制性从句是句子不可缺少的部分，主句和从句间不用逗号隔开。 非限定性定语从句是对主句先行词的补充说明，去掉不影响主句意思的完整性。一般用逗号把主从句分开。关系代词that不可以引导非限定性定语从句，其他可引导定语从句的连词均可引导非限定性定语从句。
先行词：被定语从句修饰的名词或代词叫做先行词，定语从句必须放在先行词之后。有时先行词是关系代词前的整个句子。 1.当先行词是人： 关系词要用who, whom, that, whose等，其中who/that 在从句中课充当主语或宾语，whom 在从句中只能充当宾语，whose在从句中充当定语,不可省略(of whom 可以代替whose指人，词序是名词+of whom。) This is the man who/that can speak several foreign language.（who/that 在从句中作主语，不可省略） I like the girl (who/whom/that)you referred to yesterday.(who/whom/that 在从句中作宾语，可省略） The government tried to help the old woman whose son (of whom the son/the son of whom）died in the war. [注意：whose与所修饰名词之间无任何冠词，否则要用of whom] 注意： ?若连接词在从句中作介词宾语并且介词在前面，代替人必须用whom，且不可省略There is nobody in the street to whom I can turn for help.(turn to sb for help 求助于某人) ?若介词在后面，则who, whom或that均可引导从句，且可以省略。 There is nobody in the street that /who/whom I can turn to for help. （填一填）The settlement is home to nearly 1000 people, many of ________ left their village homes for a better life in the city. ?在下列情况下多用who或whom,而不用that ①先行词是all, anyone, one, ones, those, people等时 All who can dance well will be invited.（who在从句中作主语） Those who (whom)he knows will be invited.(who/whom在从句中作宾语） ②在被分割的定语从句中 A new teacher will come who will teach us English. ③在there be句型中 There is a girl who wants to see you. ④一个句子中有两个定语从句，其中一个用that引导，为了避免重复，另一个用who. Every student that is from China who likes English will have a chance to get a book. 2.当先行词是物： 连接词要用which，that，whose，which/that在从句中作主语或宾语；whose在从句中作定语，后直接跟名词，无冠词，若有则用of which。（whose是一个表示所属关系的词,在定语从句中做定语,相当于my, his, her, its, their 等修饰人或物。of which可以代替whose指物，词序一般是名词+of which或of which+名词。） The building which/that stands in the center is our school library.（which/that在从句中作主语，不可省略） This is the book (which/that)you want.(which/that 在句中作宾语，可以省略） The building whose window (of which the window)faces south is our school library.(作定语）（填一填）Look out! Don't get close to the house ________ roof is under repair. 注意： ?如果关系代词在句中作介词宾语并且介词在前面，必须用which，且不可省略。 The house in which I live is near yours. The house (that/which )I live in is near yours.
定语从句导学案 定语从句 一、定义及相关术语 She is an English teacher (who likes singing songs . )先行词关系词/引导词 1.指代先行词teacher； 2.在从句中充当成分主语。 1.定语从句：一般紧跟在它所修饰的名词或者代词之后，以补充说明该名词并使其具体化。相当于形容词，翻译成“的”。 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。 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。关系代词：which、that、who、whom、 whose 在从句中可作主语、宾语、表语、定语关系副词：when、where、why 二、关系代词关系代词 that which who whom whose 指代人/物物人人人/物在从句中作什么成分主/宾/表主/宾/表主/宾/表宾定语【练一练】用正确的关系代词填空。 1. The eggs _____________ were in the basket were not fresh. 2. The friend ____________ came to supper last
night wasn’t hungry. 3. The noodles ___________ you cooked were delicious. 4. I have a room __________ window faces south. 5. The girl _______________ I met is Lucy. 【注意】 that 与which 的区别 先行词指物时，引导词只用that不用which的四种情况： 1. 先行词是everything, nothing, anything, something, much, little, none等不定代词或不定代词any, some, no, much, few, little, every ,all 等修饰时。 2. 先行词被形容词最高级或序数词修饰时。 3. 先行词中既有人又有物时。 4. 先行词被the very, the only 修饰时。 先行词指物时，引导词只用 which 不用that 的两种情况： 1. 介词后。 2. 非限制性定语从句中。【练一练】 1. They had nothing ________ could cure of his disease. 2. This is the most impressive film _______ has ever been put on. 3. We have to consider the first thing ______ starts our work. 4. 5. 6. 7. That is the only way ______ leads to
高一英语定语从句讲解 精华版 HUA system office room 【HUA16H-TTMS2A-HUAS8Q8-HUAH1688】
定语从句 一、基本概念：定语： 定语从句： Do you know the man who spoke at the meeting just now That is the house where he lived ten years ago. 引导词：关系词 关系代词有：that, who, whom, whose, which; 在从句中充当： 关系副词有：when, where, why. 在从句充当： 先行词： 定语从句中引关系词的作用： 二、关系词的用法： （一）关系代词的用法： 1． He is the man lives next door. The train has just left is for Shenzhen. 2． The man ________ we have just seen is a famous writer. Where is the book ___________I bought last week
（二）关系副词的用法： 1． I still remember the time ________I first became a college student. Do you know the date __________Lincoln was born (三) 使用关系副词应注意下列几点： 1．这三个关系副词在意义上都相当于一定的介词+which结构： when = on (in, at, during…) + which; where = in (at, on…) + which; why = for which. 如： I was in Beijing on the day when (=on which) he arrived. The office where (=in which) he works is on the third floor. This is the chief reason why (=for which) 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 _________ my hometown was liberated. I’ll never forget the days____________we spent together last summer. His father works in a factory____________radio parts are made. His father works in a factory______________makes radio parts.
定语从句----关系副词的用法 I Revision （复习关系代词的用法） 1.定语从句的定义：复合句中，修饰名词或代词的从句叫定语从句。 2. 能引导定语从句的关系代词有： ___________, __________,__________,__________,___________. 它们在引导定语从句时，在从句中充当的成分是否一样呢？不一样！ Ex.1 1. This is the best hotel in the city _______ I know. 2. Your teacher of Chinese is a young lady _________comes from Beijing. 3. Is there anything else _______ you want? 4.Workers built shelters for survivors _______homes had been destroyed. 5. The girl_______you visited yesterday is a student of Yinghua School. 6. He showed a machine ______ was used to increase production. 7. The time _____I first met Nelson Mandela was a very difficult period of my life. 除了以上关系代词可以引导定语从句，还有其他词可以引导定语从句吗？有
II 关系副词 1. when Iwill visitmy friends at this weekend. 主 谓 宾 when 时间状语 2. where Iwill visitmy friends at the bus station. 主 谓 宾 where 3. why Iwill visitmy friends because I miss them. 主 谓 宾 why 分析： 先行词 主 谓 宾 小结：当先行词为表示时间的名词，定语从句中不缺主语，宾语和定语时，可以考虑从句缺时间状 语，用关系副词 when 作引导词。Where 和why 也是如此。
定语从句翻译技巧 英语和汉语分属两种不同的语系，其差别很大，翻译起来有诸多困难，英语定语从句的汉译便是困难之一。由于定语从句在英语中应用十分广泛，因此，我们必须想办法、找方法、寻规律，从而很好地解决它。 一、限制性定语从句 限制性定语从句对所修饰的先行项起限制作用，在意义上与先行项密切不可分。 如被省去，主句的意思就含糊不清，甚至变得毫无意义。关系词和先行项之间一般不用逗号分隔。 （一）定语词组 ①I have but one lamp by which my feed are guided.我只有一盏指路明灯。 ②It was so with the vast railroad yards with the crowded array of vessels she saw in the river.火车站广大的场地，河里鳞次梯比的船只，她也同样不能理解。 ③Before following her in her round of seeking，let us look at the sphare in which her future was to lie.我们暂且把她找寻工作的事搁下来不谈，先看一看她的前途所寄托的这个世界。 ④…and the thread which bound her so lightly to girlhood and home were irretrievably broken……而那些把她和少女时代以及故乡轻轻系住的柔丝，不得不就此断绝了。 翻译这类从句，常常是将关系词省去，在句未加“的”字，放在被修饰项之前。当然，也可视其情况不用“的”字，如①和②。这种译法用得普遍，尤其适用于译简短的定语从句。 （二）并列从句 1）省略英语的先行项 ①The lungs are subjecd to several diseases which are treatable by surgery.肺易受几种疾病的侵袭，但均可经手术治疗。 ②A little way on she saw a great door which，for some reason，attracted her attention.又走了一些路，她看见一个大门，不知怎的，引起了她的注意。 ③As a result， a hum of gossip was set going which moved about the house in that secret manner common to gossip.结果就造成一阵闲话，暗中在公寓里流传，闲话一般都是如此的。
高中定语从句详细讲解 （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。 The number of people that / who come to visit this city each year reaches one million. 每年来参观这座城市的人数达一百万。 Where is the man that / whom I saw this morning? 我今天早上看到的那个人在哪儿？
T e a c h i n g D e s i g n Grammar — The Attributive Clause (I) (who, whom, which, that, whose) 淅川二高贾丽君 I. Teaching aims: 1. Help students understand what the Attributive Clause is and its function. 2. Enable students to use relative pronouns (who, whom, which, that, whose) in the Attributive Clause properly. 3. Encourage students to express their love to fathers using the Attributive Clause. II. Teaching important and difficult points: Enhance students’ proficiency and accuracy in using the relative pronouns to write the Attributive Clauses. III. Teaching methods: Task-based teaching method; Audio-lingual method; Cooperative learning; Group discussion IV. Teaching steps: Step I：Lead in 1. Guess a riddle. This is a man who loves us very much. This is a man whose love is as great as a mother’s.
高三英语定语从句 【本讲主要内容】 定语从句 【知识总结归纳】 定语从句：在复合句中修饰某一名词或代词的从句叫定语从句。 An architect is someone who designs buildings. Barbara worked for a company that makes washing machines. The woman whom I wanted to see was away on holiday. The last time I saw her, she looked very well. The reason I’ m phoning you is to invite you to a party. 定语从句分为限制性定语从句和非限制性定语从句。 The woman who lives next door is a doctor. My brother Jim, who lives in London, is a doctor. We stayed at the hotel （that） Ann recommended to us. We stayed at the Grand Hotel, which Ann recommended to us. I. 先行词：在定语从句中被修饰的词叫先行词。 II. 关系词： 用来引导定语从句的词有关系代词和关系副词，放在先行词和定语从句之间，起连接作用，同时又做定语从句的一个语法部分。 关系代词：that, which , who , whom , whose 关系副词：when , where , why （一）关系代词：that, which, who, whom, whose 1. that：既可以指物，也可以指人，在从句中做主语或宾语． A plane is a machine that can fly．（主语） The car which I hired broke down．（宾语） Who is the man that is reading the newspaper over there?（主语） 2. which指物，在从句中做主语或宾语． A chemist's shop is a shop which sells medicine．（主语） These are the books which you ordered．（宾语） 3. who，whom，指人，在从句中分别做主语和宾语， The man who robbed him has been arrested．（主语） The girl whom I saw told me to come back today．（宾语） 4. whose用来做定语从句中的主语或宾语的定语。 Wei Fang is the student whose home caught fire last week．（定语） This is the house whose window faces to the south．（定语） （二）关系副词: where, when, why 同关系代词一样，关系副词既引导一个定语从句，又在定语从句中担任一个成份。关系副词在句中做状语。
定语从句讲解 1．定语从句：复合句中修饰某一名词或代词的从句叫定语从句。 Recently I bought an ancient Chinese vase which was very reasonable. Those who work hard will make progress. 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。 1）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。 2）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, 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、宾语。 The boys who are playing football are from Class One. Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。 2．whom 指人，在定语从句中做宾语，常可省略。 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. 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。但直接介词后只用whom,不可省略。 The man ( whom / who )you met just now is my old friend. The man to whom you talked just now is my old friend.（whom不可省略） 3．which 指物，在定语从句中做主语或宾语，做宾语时常可省略。或在非限制定语从句中代替整个主句。Football is a game which is liked by most boys. This is the pen ( which ) he bought yesterday. He failed the exam again ,which made his father angry. 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。The number of people that / who come to visit this city each year reaches one million. Where is the man (that / whom) I saw this morning? 我今天早上看到的那个人在哪儿？ Yesterday I received a letter that / which came from Australia. 5．whose 通常指人，也可指物，在定语从句中做定语。 I visited a scientist whose name is known all over the country. 我拜访了一个全国知名的科学家。 I once lived in the house whose roof has fallen in. 我曾经住在那幢屋顶已经倒塌了的房子里。 注意：指物时，常用下列结构来代替： We live in a house,__________ windows face the sea. We live in a house,___________ the windows face the sea. We live in a house, the windows__________ face the sea We live in a beautiful house, and the windows _________ face the sea Do you like the book whose cover is yellow?=_____________________=_________________ （三）“介词+关系代词”引导的定语从句 关系代词在定语从句中作介词宾语时，从句常常由“介词+关系代词”引出。 The school (which / that) he once studied in is very famous. =The school in which he once studied is very famous. 他曾经就读过的学校很出名。 This is the boy (whom / who / that) I played tennis with yesterday. =This is the boy with whom I played tennis yesterday. 这是我昨天跟他打台球的男孩。 The manager whose company I work in pays much attention to improving our working conditions. =The manager in whose company I work pays much attention to improving our working conditions. 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：