高中定语从句详细讲解及练习题

定语从句讲解一．基本介绍❶功能：相当于adj,修饰名词或代词，在句中作定语。

❷位置：被修饰词之后❸先行词：被定语从句修饰的词❹关系词：连接先行词与从句的词称为关系词。

❺确定关系词的步骤：先看先行词，指的是什么；看关系词在充当的成份。

二．特殊用法1.He was looking pleasantly at the children and parcels______filled his bus.2.The village is no longer the one ___it was five years ago. 5.Such books____you bought are useful.23.Which are the books____you bought for me? 6.____ is known,the earth is round.4.There is a room,_____window faces the river. 7.There is lots of air in loose snow,_____can keep the cold out.3高中定语从句练习（整理）1. They talked for about an hour of things and persons _____ they remembered in the factory.A. whichB. thatC. whoD. whom2. We are going to spend this Spring Festival in Beijing, _____ live our grandparents and some relatives.A. whichB. thatC. whoD. where3. There are many areas in the world _____ lack experienced doctors.A. whereB. in whichC. whichD. what4. The years and months _____ we spent together are really wonderful to us all.A. whenB. on whichC. in whichD. that5. _____ has been described above, it is a general rule that solids expand as the temperature increases and contract when they are cooled.A. ItB. AsC. ThatD. Which6. A. who’s B. which C. whose7. Susan is not the brilliant writer _____ she used to be. D. thisA. whichB. thatC. whoD. whom8. I, who _____ your friend, will try my best to help you.A. beB. amC. areD. is9. The size of the audience, _____ we had expected, was well over 1600.A. asB. thatC. whichD. who10. They have started an investigation, _____ are being kept secret.A. whose detailB. whose the detailsC. the details of whichD. the detail of it11. Have you ever asked him the reason _____ may explain his absence?A. whyB. for whichC. whichD. what12. There were two rooms in the beach house, _____ served as a kitchen.A. the smaller of themB. the smallest of whichC. the smaller of whichD. smallest of which13. He imagined various ways _____ he could teach her how to learn English well.A. /B. thatC. in whichD. A , B & C14. The speed _____ light travels is said to be the maximum in the universe.A. in whichB. by whichC. at whichD. from which15. Can you think out a situation _____ this idiom can be used?A. in whichB. thatC. whereD. A & C16. China has hundreds of islands, _____ is Taiwan.A. in which the largestB. its largest of whichC. of which the largestD. which the largest17. We ate in a luxurious restaurant but it wasn’t such a good dinner _____ she had promised us.A. thatB. whichC. asD. what18. They stayed with me for three weeks, _____ they drank all the wine I had.A. whichB. which timeC. during whichD. during which time19. She was dressed in the same way _____ she was when I saw her last time.A. thatB. asC. onceD. in which20. The fire started on the first floor of the hospital, _____ patients are mostly elderly people.A. itsB. whichC. whoseD. their21. The company official _____ I thought would be fired received a raise.A. whomB. whoeverC. whoD. of whom22. Alec asked the policeman _____ he worked to contact him whenever there was an accident.A. with himB. whoC. whomD. with whom23. We are living in an age _____ many things are done on computer.A. at whichB. thatC. whenD. which24. The factory produces half a million pairs of shoes every year, 80% _____ are sold abroad.A. whichB. which ofC. of whichD. of that25. The road conditions there turned out to be very good, _____ was more than we could expect.A. itB. whichC. whatD. that26. He’s such a good teacher _____ we all love and respect.A. thatB. as C who D. whom27. Today, more and more people are concerned about the way _____ the environment is being destroyed.A. whichB. in thatC. in whichD. how28. The old man finally got a chance to visit the school, _____ he used to study, _____ he had beendreaming of for years.A. that…whichB. where…thatC. in which…whatD. where…which29. This is the least interesting book _____ during my holidays.A. that I have ever read itB. what I have ever readC. I have ever readD. which I have ever read30. The result is not the same _____ they had expected, _____ was rather disappointing.A. which…asB. as... thatC. that…whichD. as…which31. We interviewed the old lady, _____ had been killed in the air crash last week.A. whose all childrenB. all her childrenC. all of her childrenD. all of whose children32. There are altogether eleven books on the shelf, _____ are mine.A. of which fiveB. in which fiveC. five of whichD. A & C33. ---Is this dictionary _____ you want to buy?---Yes, this is the very dictionary _____ I need.A. which…thatB. the one…whichC. the one…/D. the one that…which34. I’ll give you my friend’s home address, _______ I can be reached most evenings.A. whichB. whenC. whomD. where35. The friendship is like health, _____ is seldom known until it is lost.A. its valueB. the value of itC. the value of whichD. whose the value36. I can think of many cases _____ students obviously knew a lot of English words and expressions butcouldn’t write a good essay.A. whichB. in whichC. whereD. B & C37. The artist _____ the judge gave a prize is the teacher _____ I have been taught painting for two years.A. from whom…by whomB. to whom…whoC. to whom…by whomD. from whom…who38. American women usually identify their best friend as someone _____ they can talk frequently.A. whoB. asC. about whichD. with whom39. Last night I took a taxi, _____ took me straight home.A. and itB. itC. whichD. A & C40. I shall never forget the days _____ I lived in the countryside with the farmers, _____ has a great effecton my life.A. when…thatB. when…whenC. when…whichD. which…which41. The town _____ you visited last month is the one _____ Einstein was born.A. where…whereB. which…whichC. that…whereD. that...which42. He’s got himself into a dangerous situation _____ he is likely to lose control over the plane.A. whereB. whichC. at whichD. in that43. Tom’s mother kept telling that he should work harder, _____ didn’t help.A. but itB. asC. whichD. A & C44. I’m looking for a present for my mother’s birthday, _____ she can use and at a reasonable price.A. thatB. oneC. whatD. which45. There isn’t much _____ I can do, _____ makes me disappointed.A. that…whichB. which…thatC. that…thatD. which…which46. That e-book is no larger than an ordinary book with a screen _____ you can read novels.A. in whichB. thatC. whereD. of which47. "Who moved my cheese?”, _____ is a best-selling book, is written by Spencer Johnson.A. whichB. thatC. itD. whose48. Shirley said that she would have a two-week holiday in July, _____ I think, is impossible.A. itB. thatC. whenD. which49. It was an exciting moment for these football fans this year, _____ for the first time in years their teamwon the World Cup.A. thatB. whichC. whenD. while50. I was so angry at all _____ he was doing _____ I walked out.A. that…thatB. which…thatC. which…whichD. /…which51. The moment he set his foot in the new country, to his great surprise, he was surrounded by friendlypeople_____ he could turn for help.A. from whomB. to whomC. on whomD. by whom52. It was not until Mum agreed to take her to KFC, _____ was her favorite, _____ the spoilt girl stoppedcrying.A. that…thatB. that…whichC. which…thatD. which…which53. You can use a large plastic bottle, _____ cut off, as a pot to grow flowers in. Which is wrong?A. the top of which isB. whose top isC. its top isD. with its to54. The British are not so familiar with different cultures and ways of doing things, ______is often thecase in other countries.A. thatB. soC. whatD. as55. Keep the drug _____ is out of children reach.A. in a place whereB. whereC. in a place whichD. in which56. When we talk about the cities in United States, the first _____ comes into our mind is New York.A. oneB. cityC. thatD. which57. He arrived in Shanghai in 2003, _____, some time later, he became a teacher.A. whenB. whereC. thatD. which58. The challenge is to create a system, _____ the farmers can teach the world about plant medicine.A. whereB. whichC. whenD. for which59. Jogging on the road was one of the reasons _____ 21 people, including 20 students and 1 teacher, diedand another 16 were injured in the accident in Shanxi Province.A. becauseB. whichC. for whichD. how60. It was in the Beihai Park, _____ they made a date for the first time _____ the old couple told us their love story.A. where…thatB. that…whereC. that…thatD. where…when定语从句Key1. BDCDB 6. CBBAC 11. CCDCD 16. CCDBC 21. CDCCB 26. BCDCD 31. DDCDC 36. DCDDC 41. CADB A 46.CADC A 51.BCCDC 56. CBACA。

完整版)高中英语定语从句讲解及练习定语从句是高中英语的重点知识，也是高考常考点。

本文将主要讲解关系代词引导的定语从句，并解释关系副词引导的定语从句，包括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，并提供例题讲解。

定语从句在句中作定语，修饰一个名词或代词，被修饰的名词词组或代词即先行词。

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。

它们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。

当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。

例如，当先行词是人时，可以使用who或whom作为关系代词。

如：Is he the man who/that wants to see you?（他就是你想见的人吗？）关系代词在从句中作主语。

而当先行词是物时，可以使用which或that作为关系代词。

如：The package（which / that）you are carrying is about to come unwrapped.（你拿的包快散了。

）关系代词在从句中作宾语。

除了who。

whom。

whose。

that。

which，还有关系副词when。

where。

why等。

关系副词引导的定语从句也可以修饰一个名词或代词。

例如：I still remember the day when we met.（我仍然记得我们相遇的那一天。

）关系副词when在从句中作时间状语，修饰先行词day。

总之，掌握定语从句的用法和关系词的选择是英语研究的重要内容。

通过不断的练和实践，相信大家可以掌握这一技能。

关系副词可以代替时间、地点或理由的名词，在从句中作状语。

例如，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。

比如，有时候我们必须屈服，这是任何人都会遇到的情况（There are ns when [on which] one must yield）。

定语从句一、含义：在复合句中修饰主句中某一名词或代词的从句，叫做定语从句，它所修饰的名词或代词叫做先行词。

分为限制性定语从句和非限制性定语从句。

限制性定语从句说明先行词的情况，对先行词起限定作用，与先行词关系十分密切，不可用逗号隔开，也不可省略，否则全句意义就不完整。

Is there anything (that) I can do for you?非限制性定语从句只是对先行词作补充说明，没有限定作用，它与先行词的关系比较松散，因而不是关键性的，如果省略，原句的意义仍然完整。

在文字中通常用逗号与主句隔开。

如：选用关系代词还是关系副词？如果从句中缺少主语、表语、宾语、定语，就用关系代词引导从句；如果从句中缺少状语，就得用关系副词来引导从句。

I still remember the days which we spent together.I still remember the days when we worked together.二、关系代词1）关系代词代替先行词在定语从句中充当主语、宾语、定语，因此定语从句中不能再出现关系代词所替代的名词或代词。

2）关系代词作主语时不能省略3）关系代词作宾语时可省。

4）关系代词that作表语时可省略。

1. who指人，在定语从句中可充当主语、宾语或表语。

I know about the man who spoke to you just now. The man (who) we invited to the party is Professor Smith.2. whom指人，在定语从句中作宾语，口语中也可用who代替。

Here is the man (whom/who) you are looking for.3. whose可修饰人也可修饰物，在定语从句中作定语。

This is the scientist whose name is known all over the world.指物时：whose + n. = the + n. + of which/whom.The room whose windows face south is mine.= The room the windows of which face south is mine.4. which指物，在定语从句中作主语、宾语或表语。

高中定语从句讲解与练习（附答案）定语从句专项讲解与练习1、定语从句在句中修饰某个名词或代词，被定语从句修饰的词叫先行词。

定语从句需用下列关联词：关系代词和关系副词。

它们起连词作用，本身做从句的主语、宾语、表语或定语，本身在从句中作时间、地点或原因状语。

主要有who, whom, that, whose, which, as, when, where, why。

PS:what不能引导定语从句. 指人的关系代词有who、whose、whom、that. 指物的关系代词有which、whose(=of which)、that.The old man who/whom /that we visited yesterday is a famous artist.Miss Wang is taking care of the child whose parents have gone to Beijing .The man with whom my father shook hands just now is our headmaster. （=The man who/whom/ that my father shook hands with just now is our headmaster.）I like the books which / that were written by Lu Xun.The desks (which/that) we made last year were very good.This is the house in which we lived last year. (= This is the house which /that we lived in last year.)I live in the room whose windows face south. (= I live in the room ,the windows of which face south.)2、掌握以上关系代词、关系副词的含义及使用时，要特别注意以下几点：1）指人时宜用who 的情况：a. 当先行词是one, ones, anyone 或those , these 时，关系代词用who。

高中英语定语从句讲解与练习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？He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。

2〕whose 用来指人或物，〔只用作定语, 假如指物，它还可以同of which互换〕。

例如：They rushed over to help the man whose car had broken down.Please pass me the book whose 〔of which〕cover is green. 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. The package 〔which / that〕you are carrying is about to e unwrapped.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。

定语从句一、1.定语：跟主谓宾一样是一种句子成分。

修饰某一中心名词或代词（可以是形容词、短语）a lovely boy a happy life ; a red appleThis is the garden near our school.2.从句：相对于主句而言的，跟从主句之后的一个句子（连接词加一个主谓宾的结构）连接词是以wh、th开头的引导词引导。

之前学过一些从句。

Fg: He said that he would go there next day.3. This is the man.The man helped me yesterday.This is the man ___helped me yesterday.造句：正在打篮球的那个男孩是我弟弟。

(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。

关系代词有: that, which, who, whom, whose,as等关系副词有: when, where, why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）常用的关系代词在从句中作主语、宾语常用的关系副词（在从句中只作状语）: when、why、 whereThe 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，区分人和物。

高中定语从句详细讲解【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 t eacher.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 ex pensive.(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。

高考英语定语从句知识精讲一、关系代词引导的定语从句1、that 指人或物在从句中作主语，宾语或表语；which 指物在从句中作主语，宾语或表语（作宾语时可以省略）；who 指人在从句中作主语，宾语或表语（作宾语时可以省略）；whom 指人在从句中作宾语（作宾语时可以省略）；whose 指人或物在从句中作定语；as 指人或物在从句中作主语，宾语或表语；注意：指物时，whose+名词 = the+名词+of which 或 of which + the +名词2、as 的用法（1）常用于下列结构：such…as; so…as; the same…as;注意：the same…as 表示同一类，不同一个the same…that 表示同一个（2）as与which的区别a、位置不同as可放在主句后，主句前或主句中间；which只能放在主句后。

b、as起连接作用，表达说话人的观点、看法，并指出主句内容的根据或出处，意为“正如，正像”。

which相当于并列句，可以用and this来代替，意为“这一点，这件事’”。

注意：as常用于下列结构：as we know/ as is known to all, as we all can see, as has been said before/above, as might be excepted, as is often the case, 一般不能用which 代替as。

c、在从句中作主语时，which既可作系动词be的主语也可作实义动词的主语，而as只可作系动词be的主语。

二、只用that不用which的情况1、先行词为 all, much, everything, nothing, something, anything, nothing, none, the one等不定代词时2、先行词被only, any, few, little, no , all, just , very ,right等修饰时.3、当先行词是最高级或被形容词最高级修饰时。

高中英语语法基础——定语从句知识点归纳讲解（附同步练习）★先行词：被定语从句修饰的名词或代词叫先行词。

通常情况下，引导词前面的名词即为从句的先行词。

★关系词：引导定语从句的词叫关系词。

也可以称作引导词。

①关系代词：who，whom，which，that，whose，as，在从句内作主语、宾语等名词性成分。

②关系副词：when，where，why在从句内作状语。

（一）. 使用who、whom、which、that的定语从句1. whoThis is the boy who plays basketball very well.This is the teacher who is teaching us English.▲who 指人, 在从句中作主语。

2. whomThis is the boy (whom) I often help.The man is our headmaster (whom) you met just now.I met the girl (whom) you often praise.▲whom 指人,在从句中作宾语, 可省略。

3. whichThis is the farm which keeps many cows.This is the farm (which ) I visit every year.▲which 指事物, 在从句中作主语或宾语,作宾语时可省略。

4. that以上三种情况均可用that。

指人或指物，可作主语和宾语，作宾语时可省略。

（二）. 使用whose的定语从句Do you know the girl whose father is mayor.I used to work in an office whose window faces north.I work in a school whose students are excellent.▲whose 指人或物的所属关系，表示“某人的”或“某物的”。

高中英语定语从句讲解及练习题含答案定语从句是指修饰一个名词或代词的从句，用来限制或说明这个名词或代词的性质、状态、特点、数量等。

在英语中，定语从句使用的引导词包括关系代词who, whom, whose, which, that，以及关系副词where, when, why。

关系代词和关系副词的用法关系代词和关系副词的用法如下：关系代词：who, whom, whose, which, that1) who/whom/whose：用于人who：用于主语The man who is standing over there is my father.whom：用于宾语The woman whom I met yesterday is a doctor.whose：用于所有格The girl whose name is Lucy is my friend.2) which/that：用于物which：用于非限定性定语从句My house, which is near the park, is very quiet.that：用于限定性定语从句The book that you lent me is very interesting.注意：that 既可以用于人也可以用于物，但who/whom/whose 不能用于非限定性定语从句。

关系副词：where, when, whywhere：用于地点This is the school where I study.when：用于时间I still remember the day when we first met.why：用于原因This is the reason why I am late.定语从句的位置定语从句通常紧跟在被修饰的名词或代词后面，如果是用关系代词who, whom, whose, which, that 引导的定语从句，则可以省略该代词的主语或宾语成分，并将关系代词作为引导词。

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关系副词有when, where, why.注意：关系代词与关系副词在定语从句中充当不同的句子成分，定语从句中缺主、宾、表，用关系代词；缺状语用关系副词，何为句子成分？五大根本句1. 主+ 谓〔Vi〕I come.2. 主+ 谓〔Vt〕+ 宾I love you.3. 主+ 谓〔Vt〕+ 间宾+ 直宾I give him a book.4. 主+ 谓〔Vt〕+ 宾+ 宾补I make him happy.5. 主+ 系+ 表I am tall.〔二〕关系代词引导的定语从句1．which 指物，在定语从句中做主语、宾语、表语。

The house which is by the lake looks nice. 〔主〕湖边的那幢房子看上去很漂亮。

This is the pen〔which〕he bought yesterday. 〔宾〕这是他昨天买的钢笔。

She was fond of dancing, which her brother never was. (表) 她喜欢跳舞,她弟弟从不喜欢。

2．that 指人/ 物，在定语从句中作主语、宾语、表语。

The number of people that come to visit this city each year reaches one million.〔人主〕每年来参观这座城市的人数达一百万。

Where is the man〔that〕I saw this morning 〔人宾〕我今天早上看到的那个人在哪儿？He is no longer a little boy that he used to be.〔人表〕他已经不再是以前那个小男孩儿了。

高中定语从句详细讲解一定语：修饰名词或代词的词、短语或从句称为定语。

汉语中常用………的‟表示。

定语主要由形容词担任。

此外名词、代词、数词、副词、介词短语以及动词不定式（短语）、分词也可以做定语。

a beautiful city; a bag full of money.注意：汉语的定语无论多长都放在被修饰词的前面，而英语中的定语则不然，是一个词时，放在被修饰词的前面，若是两个以上的词组、短语或从句则放在被修饰词的后面，thirty women teachers ; his father; the girl in red. the boy from America Our monitor is always the first student to enter the classroom.;falling leaves; fallen leaves; the boy playing basketball; the book bought by my mother; a reading room; a swimming pool;He is the man who you are looking for.二：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：被定语从句修饰的名词或代词叫先行词。

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.指出下列句子中的定语从句，主句、先行词及关系词并翻译。

1.This is the book that I want to read.2.This is the only one of the guests that comes from the USA.3.The letter which I received yesterday was from my father.4. The dog which was lost has been found.5.Here comes the girl who wants to see you.6.Mr. Li is a man who we should learn from.7.Do you know the woman who he is talking to? 8.Rose is the person whom you should look after.9.I know the person whose company produces computers. 10.I like the house whose windows face south.关系词通常有下列三个作用：A、引导定语从句，连接主从句；B、指代先行词；C、在定语从句中担当一个成分。

定语从句Step 1 Leading-in用下划线标出下文中定语或定语从句。

He is a clever student. He is a student who is good at English. He lives in a small village. His grandfather lived there before. I know a girl who lives in the village too. Her name is Wang Fang. Wang Fang’s fathe r is a farmer. He is a hard-working farmer.Step 2 语法讲解1：有关定语从句的几个概念1）功能：在复合句中，充当_______ ，修饰名词或代词，在句中作定语2）位置：定语从句置于被修饰词之后：Those who are willing to attend the party sign here please. 3）先行词：被关系词所指代并且被定语从句所修饰或限制的对象。

*先行词可以不只是一个词，它还可以是一个短语、一个完整的句子。

4）关系词：重复替代先行词、起连接主句和从句的作用并且在定语从句中充当一定成分的连接词。

关系词的作用：1、连接作用：引导从句，把它和主句连接起来；2、替代作用：在从句中代替在它前面的先行词；(思考：定语从句中还能不能再出现关系代词所替代的先行词呢？)The film we saw it last night is very frightening.(改错)I’ll give you a book which you’ll find it interesting.3、成分作用：在从句中总是充当一个句子成分;*关系词分为关系代词和关系副词2：关系词的双重身份及其选用原则1）代替先行词；2一．试一试：观察下列几组简单句，并试着写出定语从句。

高中英语定语从句的用法讲解与专项练习题及答案定语从句的用法讲解与专项练习题及答案第1 讲关系词的选择技巧考点1. 相关概念基础过关1. 用合适的关系词完成句子。

1 The man / was here yesterday is a p ai nter.2 The man / / / I saw is call edSmi th.3 A child parents are dead is called an orphan.4 I’ｄlike a room window looks out over the se a.5 A letter / is written in pencil is hard to read.6 The letter / / I received from himyesterday is very important.7 That is the boy / / / youare looking for.8 Do you know the reason he was late for themeeting？9 This is the school I used to study.10 I still remember the day we met for the first time.考点2. 关系词的选择技巧A. 选用哪个关系词，关键是看关系词在定．语．从．句．中作什么成分含有定语从句的复合句可以分为两部分：主句和从句。

关系词是定语从句的一个成分。

选用关系词，要看关系词在定语从句中作什么成分，而不是看先行词是什么词性。

1 He worked in the factory which produces TV se ts.2 He worked in the factory where his father had worked.3 I like the school w hich is near to my home.4 I like the school w here my sister studies.在句①和句②中，先行词前都有in, 但关系词有用which 也有用where 的；在句③和句④中，先行词都是the school, 但关系词有用which 也有用where 的。

高中定语从句练习题及讲解1. 练习题：The book which I borrowed from the library is very interesting.讲解：在这个句子中，"which" 引导了一个定语从句，用来修饰先行词 "the book"。

定语从句提供了关于书的额外信息，即它是从图书馆借来的。

2. 练习题：She is the only person who I can trust completely.讲解：这里 "who" 作为关系代词，代替先行词 "the only person"，并且在定语从句中作主语。

这个句子强调了她是唯一一个可以完全信赖的人。

3. 练习题：The house whose roof was damaged is being repaired.讲解："whose" 是一个关系代词，用来表示所属关系，修饰先行词"the house"，说明屋顶受损的房子正在被修理。

4. 练习题：I have a friend whose brother is a famous musician.讲解：在这个句子中，"whose" 用来表示拥有关系，修饰 "a friend"，说明这位朋友有一个著名的音乐家兄弟。

5. 练习题：The boy that you saw in the park is my cousin.讲解："that" 在这里引导定语从句，代替先行词 "the boy"，并且指明在公园里你看到的那个男孩是我的表兄弟。

6. 练习题：The stories which are written by Mark Twain arevery popular.讲解："which" 引导的定语从句用来修饰 "the stories"，说明这些故事是由马克·吐温写的，并且非常受欢迎。

定语从句一、知识框架二、知识梳理一）定义(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) 关系词：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）关系代词（在从句中作主语，宾语，表语，宾补，定语）: that、which、who、whom、whose、as关系副词（在从句中只作状语）: when、why、where二）关系代词的用法在定语从句中关系代词起着连接主句与从句、指代先行词和在从句中作句子成分的三重作用。

关系代1. 关系代词who, whom和that的用法三者都可用于指代人，但在用法上存在差别。

who和whomwho可以代替人（即它的先行词必须是人），在从句中可以担任主语，往往也可以代替在从句中担任宾格的whom（常可省略）。

但它的前面不能有介词，如果带介词则必须用宾格whom,即“介词+whom”。

Johnny is a person who always has novel ideas.The girl who won the first prize is from Zhejiang.The person who/whom you just talked to is Mr Depp.= The person to whom you just talked is Mr Depp.We’ll go to the hospital to see the patients, most of whom are children.who和that在定语从句中who和that指代人时常可以通用，但在下列情况中只能用who,而不能用that。

(1)先行词是one, ones和anyone时，宜用who。