高中英语复习专题：定语从句(含知识要点,典型例题和解析)
高中英语-定语从句知识点和练习(含答案)
10.定语从句定从的本质是形容词，修饰其前的名词或代词。
与名从和状从最大的区别是其前有先行词。
一、定语从句在复合句中，修饰某一名词或代词从句叫定语从句，在句中起定语修饰的作用. 被定语从句修饰的词叫做先行词。
引导定语从句的词叫关系代词或关系副词。
如：Mary is a beautiful girl.Mary is a girl (who is beautiful). 定语从句先行词关系代词This is a book which was written by Tom who is my best friend.I remember the days____ I spent with you.I remember the days____ I played with you.I remember the place____ I visited last year.I remember the place____ I lived last year.I remember the reason____ I give to you.I remember the reason____ I was late.二．引导词注：这些引导词中有名词从句中的What，how，Wh—ever吗？三．引导词各自用法（Ⅰ）1．who修饰“人”作主语，口语中可作宾语。
T his is the man who often helps me.(who作主语)The man who you just talked is a teacher.2．whom修饰“人”作宾语。
可省略，但在介词后和非限制性定语从句中不可省略。
The doctor (who/whom) you are looking for is in the room.3．whose是who，which的所有格，作定语，修饰“人”“物”。
This is a book whose cover is blue.4.that修饰“人”“物”作主语、宾语、表语。
(完整版)高中英语定语从句讲解及练习题(含答案)
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。
[精]高中英语定语从句知识点、难点与考点解析
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高中英语语法重点难点回顾――定语从句用来说明主句中某一名词或代词（有时也可说明整个主句或主句中一部分）而起定语作用的句子叫作定语从句。
一、关系代词引导的定语从句1. 关系代词用来指代先行词是人或物的名词或代词句子成分用于限制从句或非限制性从句只用于限制性从句代替人代替物代替人或物主语Who which that主语Whom which that宾语Whose(=of whom) whose(=of which)例1：This is the detective who came from London.例2：The book which I am reading is written by Tomas Hardy.例3：The desk whose leg is broken is very old.例4：This is the room that Shakespeare was born in.2．关系代词的用法(1) 如果先行词是all, much, anything, something, nothing, everything, little, none等不定代词，关系代词一般只用that，不用which。
例如：All the people that are present burst into tears.(2) 如果先等词被形容词最高级以及first, last, any, only, few, mush, no, some, very等词修饰，关系代词常用that,不用which, who，或whom。
例如：(3) 非限制性定语从句中，不能用关系代词that,作宾语用的关系代词也不能省略。
例如：There are about seven million people taking part in the election, most of whom are well educated.(4) which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。
完整版)高中英语定语从句讲解及练习
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）。
(完整版)定语从句语法详解
定语从句语法专题（Attributive Clauses）教案一. 定语从句的概述:1.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。
在句中做定语，被修饰的名词或代词，叫做先行词。
从句通常放在先行词之后，由关系词（关系代词或关系副词）引导。
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。
eg She is the girl（who got the first prize.）girl先行词who充当从句主语, 从句做定语修饰girlThis is the boy who broke the window.这就是打破窗子的孩子。
the boy是先行词, who broke the window是限制性定语从句, 明确指出theboy是打破窗子的那个孩子,who 在从句中充当主语That is the house where he lived ten years ago.He is the man who/that lives next door.He is the man who I want to see.先行词关系词定语从句复合句: 是由一个主句和一个或一个以上的从句构成的句子, 复合句中的主句和从句都具有完整的的主语和谓语, 主句是复合句的主体, 可以独立存在, 从句需要有一个连词引导, 是修饰说明主句的, 不能独立存在, 根据在句中的不同作用, 从句可以分为三类: 定语从句, 名词性从句, 状语从句。
二. 引导定语从句的关系词有两大类:1.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: that, who, whom, whose, which, as（主, 宾, 定）关系副词: when, where, why.（状语）2.关系词的作用:（1）引导定语从句, 在先行词和定语从句之间起连接作用；（2）代替先行词在句中充当成分。
高考英语必考语法--定语从句详细讲解(附练习题及答案)
高考英语语法定语从句 attributive clause◆概念(1) 定语从句：在主从复合句中用作定语(修饰某一名词或代词)的从句叫定语从句，一般紧接在先行词(antecedent)后面。
(2) 先行词：被__________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 关系代词____, ______, ______, ______, _____, _______关系副词 _____, ______, ______ 在从句中作某个句子成份（可以做主语，宾语，定语，状语）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、定语或状语）； 第三选择合适的关系词。
考点一：关系代词引导的定语从句1.who ,whom 和whose 引导的定语从句(1)who或whom均可指代人，但who在从句中作主语或宾语，做宾语时不可以出现在介词后；whom在从句中作宾语；两者在引导限制性定语从句时可用that 替换。
作主语时，who/that不可省略；作宾语时，whom/who/that可以省略。
◆ I’ve become good friends with several of the students in my school _________I met in the English speech contest last year.◆ I have many friends to _________ I’m going to send post cards.◆ The person I want to talk about with is Tu Youyou, the one ______ won theNobel Prize in Physiology or Medicine in 2015.(2)whose表所属关系，一般指人，也可指物，在从句中作定语。
高考英语专项定语从句语法详解以及练习题
高考英语专项定语从句语法详解以及练习题定语从句确实是由关系代词和关系副词引导的从句，同时作定语修饰主句中某一名词或代词（一）定语从句一样由关系代词和关系副词引导1、关系代词：who, whom, whose, which, that, as2、关系副词：when, where, why关系代词和关系副词必须位于主句先行词之后，定语从句之首，，起着连接先行词和定语从句的作用，同时在从句中又充当句子成分。
先行词：定语从句修饰的词叫先行词。
She is the girl who/that lives next door. 她确实是住在隔壁家的女孩。
关系代词that 人/物主语宾语Which 物主语宾语Whom 人宾语Who 人主语宾语Whose 人/物定语As 人/物主语宾语先行词在定语从句中作的语法成分关系副词when 时刻名词状语Where 地点名词状语Why 缘故reason 状语关系副词when（指时刻，在定语从句中作时刻状语，where（指地点，在定语从句中作地点状语），why（指缘故，在定语从句中作缘故状语）。
who, whom, whose, which, that, as的使用先行词指人，在定语从句中作主语，用who/that,同时不能省略She is the girl who/that lives next door. 她确实是住在隔壁家的女孩。
先行词指人，在定语从句中作宾语，用whom/who/that,能够省略That is the girl whom/who/that I teach. 那个确实是我教的女孩。
先行词指物，在定语从句中作主语，用which/that,同时不能省略The work that/which has just been finished is very important. 刚刚完成的那份工作专门重要。
先行词指物，在定语从句中作宾语，用which/that,能够省略This is the book which/that I want to read. 这确实是我想读的一本书。
高考英语定语从句讲解+习题-
在复合句中充当定语的从句叫定语从句。
定语从句的作用相当于形容词，用来修饰主句中的某一名词或代词或整个主句，所以，也称作形容词性从句。
被定语从句修饰的词叫先行词，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。
关系词有关系代词和关系副词两种。
提示：关系词在定语从句中有三大作用1. 连接作用——连接先行词和定语从句。
I I . 我把我所有的钱都给了她。
（连接先特词和定语从句I ）2. 替代作用——在定语从句中替代从句所修饰的先行词。
a . 住在隔壁的那个人是个名师。
（替代）3. 成分作用——在定语从句中作主语、宾语、定语或状语。
I . 我喜欢传统的中国画。
（在定语从句中作主语）一、关系代词引导的定语从句引导定语从句的关系代词主要有, , , , 等。
它们分别代替前面的先行词，并在定语从句中作主语、宾语或定语。
A．指人，在定语从句中作主语。
借钱给你的那人叫什么名字？（定语从句修饰先行词）. 谁笑到最后谁笑得最好。
（定语从句修饰先行词）会议主席坐在我右边，他先发言。
（定语从句修饰先行词）B．指人，在定语从句中做宾语。
在口语或非正式文体中，可省略或可用来代替，但在介词后面以与在非限制性定语从句中只能用。
有些人我们是喜欢的，有些人则是我们讨厌的。
（定语从句分别修饰先行词, ）I .和我一起工作的人都很友好。
（定语从句修饰先行词）. , I , .. , I , .昨晚我在里和卡特先生交谈过，他对我们的计划很感兴趣。
（非限制性定语从句中不能用代替）, I , .两个人来到我的办公室，我以前从未见过他们。
（在介词后面不用）C．人、物皆可，做定语，后面要紧跟被修饰的名词，先行词和后面的名词之间往往是从属关系。
有些人，他们的脸你永远难以忘怀。
（定语从句修饰先行词）I .我看见一些树的树叶由于空气污染而发黑。
（定语从句修饰行词）D．1．指物，在定语从句中做主语或宾语。
做宾语时常可省略。
(word完整版)高中英语语法定语从句讲解及练习
高中英语语法：定语从句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。
注意：关系代词和关系副词处在先行词和定语从句之间，起着连接主从句、指代先行词和在从句中作句子成分的三重作用。
一、关系代词that, which, who引导的定语从句二、关系代词whose引导的定语从句关系代词whose为关系代词who的所有格形式，用作名词的限定语，whose引导的定语从句既可为限制性的，也可为非限制性的。
先行词既可为人，也可为物，whose和它所修饰的名词在定语从句中可作主语及动词或介词的宾语。
例如：This is the scientist whose name is known all over the world.The room whose window faces south is mine.He has written a book whose name I’ve forgotten.=He has written a book the name of which I’ve forgotten.四、判断关系代词与关系副词先把主句和定语从句分开，再找出定语从句所修饰的名词/代词（即先行词），然后放入定语从句中，看看这两者的搭配情况。
1）如果定语从句和该先行词可以直接相连，且在从句中充当主语/宾语/表语的话，则用关系代词。
This is the city (which/that) you visited last year.2）如果定语从句和该先行词无法直接相连，必须另外多加上介词，并在定语从句中充当状语时，则使用关系副词。
This is the city where you stayed last year.选择：1. Is this museum ___ you visited a few days age?A. whereB. thatC. on whichD. the one2. Is this the museum ____ the exhibition was held.A. whereB. thatC. on whichD. the one五、限制性和非限制性定语从句1）定语从句有限制性和非限制性两种。
高一定语从句知识点的整理总结、专项训练题目
高一定语从句知识点的整理总结、专项训练题目知识点整理总结：定语从句是英语中常用的一种从句类型，用来修饰名词或代词，使语言更加精准和丰富。
以下是高一阶段定语从句的一些常见知识点总结：1. 定语从句的构成：- 引导词：关系代词（that, which, who, whom, whose）或关系副词（when, where, why）。
- 定语从句的位置可以是名词的前面或后面，具体取决于修饰的成分。
2. 关系代词的选择：- 指物时使用关系代词 that 或 which。
- 指人时使用关系代词 who 或 whom。
- 指物时使用关系代词 whose 表示所属关系。
3. 关系副词的使用：- where 表示地点。
- when 表示时间。
- why 表示原因。
4. 定语从句的省略：- 当关系代词在定语从句中作宾语且不作介词宾语时，可以省略。
5. 定语从句的限制性和非限制性：- 限制性定语从句对所修饰的名词起限定作用，不可省略。
- 非限制性定语从句对所修饰的名词作补充说明，用逗号隔开，一般可省略。
专项训练题目：1. 下列句子中有定语从句的是：- A. The book on the table is mine.- B. This is the pen that I lost yesterday.- D. The boy is tall.2. 选择正确的关系代词填空：- The house _______ you bought is very beautiful.- A. where- B. that- C. who3. 选择正确的关系副词填空：- Do you remember the day ______ we went to the beach? - A. when- B. who- C. why4. 下列句子中哪个是限制性定语从句：- A. My brother, who is a doctor, lives in Paris.- B. The dog that I adopted is very friendly.- C. The house, where we spent our vacation, is now on sale.5. 填入合适的关系代词或关系副词：- This is the bus _______ I often take to work.- A. who- B. when- C. that作答：1. B2. B3. A4. B5. C以上是高一定语从句知识点的整理总结和专项训练题目。
高中定语从句全面详细讲解附练习题加答案
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。
高中英语高考复习定语从句知识精讲(附练习题)
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 ——定语从句知识点总结归纳讲解(附同步练习)(有答案)
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 知识点考点解析含答案 知识讲解 定语从句(介词+which whom)
定语从句（介词+which/whom)概念引入This is the reason for which (=why) he left the company.这就是他离开公司的原因。
Can you tell me for whom you are working?你能告诉我你现在为谁工作吗?There are sixty students in our class, all of whom are working hard.班上有60 名学生，他们都在努力学习。
Recently I bought an ancient Chinese vase，the price of which was very reasonable.最近我买了一个中国古代花瓶，价格非常合理。
观察句子，句子中的引导定语从句的连接词which，whom前都有介词，which和whom 都是代替各自的先行词作介词的宾语。
那么由这种“介词+which/ whom”结构引导定语从句有什么需要注意的呢，这就是本单元我们要学习的内容。
语法讲解【高清课堂：定语从句—定语从句关联词】，“介词+关系代词”引导的定语从句1. 介词放在关系代词前，关系代词只能用which或whom, 关系代词不能省略。
这是莎士比亚出生的房子吗？Is this the house in which Shakespeare was born?在黑暗的街道上，没有任何人能让她求助。
In the dark street, there wasn’t a single person to whom she could turn for help.2. 在限定性定语从句中，当介词位于定语从句末尾时，可用that/which (指物), that/whom/who （指人）作介词的宾语，且关系代词可以省略。
This is the hero that/who/whom we are proud of.这就是让我们骄傲的英雄。
高中英语语法基础 ——定语从句知识点总结归纳讲解(附同步练习)(有答案)
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”。
【英语】英语定语从句解题技巧讲解及练习题(含答案)含解析
【英语】英语定语从句解题技巧讲解及练习题(含答案)含解析一、定语从句1．The teenagers like the musician ____ different kinds of music.A．who play B．which plays C．who plays D．that play【答案】C【解析】【分析】【详解】试题分析：句意：青少年喜欢演奏不同种类音乐的音乐家。
The musician是先行词，后面跟的是它的定语从句。
先行词musician指人，用who、that引出定语从句，Ｂ错；关系词在定语从句中作主语，定语从句的谓语与先行词保持一致。
musician是单数，谓语用单数：plays。
故选C。
2．—Have you watch the TV play ＂ In the name of people＂（人民的名义）?—Yes. It’s the most popular play _________ shows our Party’s trying to struggle against corruption（反对腐败）.A．where B．whether C．that D．who【答案】C【解析】句意：——你看电视剧“人民的名义”了吗？——是的，它是表现我们的党尽力反对腐败的最受欢迎的电视剧。
这是一个定语从句的句子，先行词是play，所以引导词用that/which；故选C3．Music is the only thing ______ can help me to relax after a long day of hard work. A．which B．that C．who【答案】B【解析】【详解】句意：音乐是可以在努力工作的一天后，帮助我放松的唯一一件事。
which修饰事物，引导定语从句；that修饰事物，引导定语从句；who修饰人，引导定语从句。
此处修饰先行词thing，有the only修饰，故用that引导定语从句。
高中英语定语从句详解及习题精炼附答案
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。
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高中英语复习专题：定语从句一．概述She is the girl who likes singing . 她是个喜欢唱歌的女孩。
↓ ↓↘先行词 引导词 定语从句定语从句：在句中作定语，修饰主句中的一个名词或代词，通常出现在先行词之后，由引导词（关系代词或关系副词）引出。
只作整个句子的一个成份，起修饰和说明的作用。
关系代词：在从句中可作主语、宾语或定语关系副词：在从句中作地点、时间或原因状语结构： 主句的先行词 + 引导词（关系代词或关系副词）引导的定语从句↓ ↓二. 关系代词who, whom, whose, that, which, as 的基本用法1. who ：在从句中作主语，只可指人①The girl who often helps me with my English is from England.经常在英语方面帮助我的那个女孩是英国人。
（作主语）②Anyone who breaks the law should be punished.任何犯法的人都应受到惩罚。
（作主语）2. whom：who的宾格，在从句中作宾语，只可指人①Who is the teacher whom Li Ming is talking to？正在与李明谈话的老师是谁？②The professor whom you are waiting for has come. 你正在等的教授已经来了。
3. whose：属格，在从句中作定语，可指人或物。
①Who is the girl whose father is a doctor? 父亲是医生的那个女孩是谁？②I want the book whose cover is red. 我要封面是红色的那本书。
③I 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。
【★】指人/物时，常用下列结构来代替whose+n.= the+n.+of which/ the+n.+of whom或of which+the+n./ of whom+the+n.①她就是我们班上发音最好的学生。
She is the student whose pronunciation is the best in our class.the pronunciation of whom is the best in our class.of whom the pronunciation is the best in our class.②你看到窗户破了的房子吗？Do you notice the house whose window is broken?the window of which is broken?of which the window is broken?4. that：作主语、★宾语（可省略），可指人或物①Mary likes music that is quiet and gentle.玛丽喜欢轻柔的音乐。
（that作主语）②China is not the country that she used to be.中国已经不是过去的中国了。
(that作主语)③The coat (that) I put on the desk is blue.我放在桌子上的那件外套是蓝色的。
（that作宾语可省略）5. which：作主语、★宾语（可省略），指物①Football is a game which is liked by most boys. 足球是大多数男孩所喜欢的运动。
（作主语）②The film （which）we saw last night was wonderful. 我们昨天晚上看的那部电影很好看。
（作宾语）③This is the pen (which ) he bought yesterday. 这是他昨天买的钢笔。
（作宾语）6. as：作主语、宾语多单独引导一个非限定性定语从句，这种定语从句可置于句首，句中或句尾，译为"正如，这一点"。
①As we all know, smoking is harmful to one's health. (as作宾语，句首)=Smoking is harmful to one's health, as we all know.（as作宾语，句尾）=Smoking, as we all know, is harmful to one' health.（as作宾语，句中）=As is known to all, smoking is harmful to one's health. （as作主语）=It's known to all that smoking is harmful to one's health.②He was a foreigner, as I knew from his accent. (宾语, 先行词是前面整个句子)【考题印证】1. I've become good friends with several of the students in my school I met in the English speech contest last year. （2010湖南）A. whoB. whereC. whenD. which【解析】A。
考查定语从句。
该空引导定语从句修饰表示人的先行词the students，且在从句中作met的宾语，故选关系代词who，即A项。
2. The prize will go to the writer ________ story shows the most imagination. （2011全国卷I）A. thatB. whichC. whoseD. what【解析】C。
考查定语从句。
本题主句中的先行词writer和从句中的主语story有所属关系，译为作者的故事，因此选C。
句子的意思是：我们的奖金会留给故事情节最富有想象力的作者。
3. The old temple _______ roof was damaged in storm is now under repair. （2010陕西）A. whereB. whichC. itsD. Whose【解析】D。
考查定语从句。
所填词引导定语从句，先行词是the old temple，关系词在从句中做roof的定语，用关系代词whose，选D。
其余选项与题意不符。
4. The newly built café, the walls of_______ are painted light green, is really a peaceful place for us, specially after hard work. （2010江苏）A. thatB. itC. whatD. which【解析】D。
考查定语从句。
定语从句表示咖啡屋的墙5. The air quality in the city, ________is shown in the report, has improved over the past two months.A. thatB. itC. asD. what （2012福建卷）【解析】C。
本题考查定语从句的引导词。
本句难点是把定语从句分割出来放在句首就很明了了，把句子转换成is shown in the report, the air quality in the city has improved over the past two months.就能直接看到非限制性定语从句引导词放句首指的是下文所提到的一句话用as引导“正如在所写的那样”。
6. You’ll find taxis waiting at the bus station ____ you can hire to reach your host family.A. whichB. whereC. whenD. as （2011上海卷）【解析】A。
考查定语从句。
先行词为the bus station，从句中谓语动词hire后缺少宾语，故用关系代词which。
7. The old town has narrow streets and small houses _____are built close to each other. （2011山东卷）A. theyB. whereC. whatD. that【解析】D。
考查定语从句的引导词。
关系代词that代替先行词small houses，在从句中作主语。
句意为：这座古老的城镇街道狭窄，小房子挨得很近。
三. 几组关系代词的区别1. 只能用that，而不用which(1)当先行词是everything, anything, nothing (★something 除外), all, ★none, few, little, ★some等不定代词时，或当先行词被every, any, all, some, ★no, little, few, much等代词修饰时。
例如：①Have you taken down everything that Mr. Li said? 李老师讲的你都记下来了吗？②All that can be done has been done. 所有能做的都做好了。
③There is little that I can do for you. 我不能为你干什么。
④Is there anything that you want to buy in the shop？你在商店里有什么东西要买吗？【★】当先行词指人时，偶尔也可用关系代词whoAny man that / who has a sense of duty won’t do such a thing. 任何有责任感的人都不会做这样的事。
All the guests that / who were invited to her wedding were important people. 所有应邀来参加她婚礼的客人都是重要人物。
(2) 当先行词被形容词最高级修饰或被序数词修饰时。
例如：①This is the best film that I have ever seen. 这是我看过的最好的电影。
②He was the first person that passed the exam. 他是第一个通过考试的人。