1、1初三英语定语从句讲解及练习题在复合句中修饰名词和代词的从句叫做定语从句。被定语从句修饰的名词或代词叫做先行词。引导定语从句的关系代词有 who, whose, whom, which, that 。引导定语从句的关系副词有 when, where, why。关系代词在定语从句中做主语，宾语，定语。关系副词在定语从句中做状语。一、who 引导的定语从句,who 在从句中做主语(口语中也可做宾语 )，修饰表示人的先行词。This is the man who helped me.The boy who/whom we saw yesterday is Johns brother.二、whom 引
2、导的定语从句,whom 在从句中作宾语,修饰表示人的先行词，口语中可以省略。The doctor (whom) you are looking for is in the room.The person (whom) you just talked to is Mr. Li.=The person to whom you just talked is Mr. Li. (介词后 whom 不能省略)The babies whom the nurses are looking after are very healthy.(固定短语中的介词一般不能拆开，仍放在动词之后。look for / loo
3、k after /take care of / put on / take off)三、whose 引导的定语从句,whose 在从句中作定语，修饰表示人或物的先行词。Do you know the woman whose name is Mary. Pass me the dictionary whose cover is black.He has a friend whose father is a doctor.四、that 引导的定语从句，that 在从句中做主语或宾语、修饰表示人或物的先行词。作宾语时可省略,不能放在介词后面作宾语. (that 指人时，相当于 who 或者 whom
4、；指物时，相当于 which)The letter (that/which) I received was from my father.I cant find the letter that/which came this morning.Do you still remember the days (that/which)we spent together ?This is the man that/who helped me.The house (that/which) we live in is not large. =The house in which we live is not
5、 large.The doctor (that/whom /who)you are looking for is in the room.五、which 引导的定语从句，which 在从句中做主语，也可做宾语，或介词的宾语，修饰2表示物的先行词。This is the book (which/that ) you want.The building which/that stands near the river is our school.The room in which there is a machine is a workshop.(介词后面的 which 不能省略)The hous
6、e (which/that) we live in is not large. This is the watch (which/that ) he was looking for.六、that 和 which 都可以修饰表示物的先行词, 但是下列情况只能用 that.先行词为不定代词 all, few, little, much, everything, nothing, anything 等.All (that) you have to do is to practise every day. There isnt much (that) I can do.Tell us everythi
7、ng that you know, please. Is there anything that you dont understand?先行词被序数词或形容词的最高级所修饰时.The first lesson (that) I learned will never be forgotten.This is the best film (that ) I have ever seen.先行词被 all, any, every, few, little, no, some, much 等不定代词修饰时.I have read all the books (that) you gave me.先行
8、词被 the only, the very, the last, the same 等修饰时.This is the very book that I want to read. This is the same book that I want to read. This is the last time ( that ) I shall give you a lesson.This is the only thing that I can remember. 七、由 when 引导的定语从句，修饰表示时间的先行词，when 为关系副词，做定语从句的时间状语。I still remember
9、 the day when I first came to Beijing.I still remember the day on which I first came to Beijing. ( 介词which 可以代替 when)Ill never forget the time when we worked on the farm.I remember the days which/that we spent together.八、由 where 引导的定语从句，修饰表示地点的先行词，where 为关系副词，做定语从句的地点状语。This is the place where we li
10、ved for five years.The factory where his father works is in the west of the city.The factory in which his father works is in the west of the city.( 介词which 可以代替 where)This is a place which/that I wanted to visit. 3Shanghai is the city where I was born.九、Why 引导的定语从句，why 做原因状语。I know the reason why he
11、 came late. ( forwhich 可以代替 why)The reason why / for which he was late was that he was ill.十、关系代词在从句中作主语，谓语动词的数与先行词保持一致。The student who is good at English studies hard.The students who are good at English study hard.十一、定语从句可分为两大类，即限制性定语从句和非限制性定语从句。 限制性定语从句是先行词在意义上不可缺少的定语，如果去掉的话，主句的意思就不完整，意义就表述不明。这种句
12、型一般定语从句紧接先行词（不用逗号隔开）如：I was the only person in my office who was invited. 非限制性定语从句。它与主句的关系不十分密切，只是对先行词起补充、说明的作用，也就是说即便去掉定语从句，句意也不受影响。主从句之间常用逗号分开，且非限制性定语从句不能用 that 来引导。This was the American Civil War, which lasted 4 years before the North won in the end.一、用关系代词（that 、which 、who、 whom 、whose ）或关系副词（wh
13、en、 where、 why）填空。1This is the man _ wants to see you.2The student _ answered the question is Zhang Hua.3The man _ you went to see has come.4The man _I met yesterday lent me some money.5The woman _ you saw is our geography teacher. 6Here is the pen _ you lost the day before yesterday.7These books _
14、you lent me were very useful.8A clock is a machine _ tells people the time.9This is the shirt _I bought yesterday.10 The book _ is on the table is mine.11 The film _ they are talking about is very interesting.12 I will never forget the people and the places _ I have ever visited.13 Is there anyone _
15、 family is in Beijing?14 Show me the boy _ mother is a well-known singer.15 The boy_ father is a teacher is good at English.416 I dont know the reason _ he was late for the class.17 A birthday is the date _ one was born.18 Do you know the reason _ no one questioned Aristotles theory for about 2,000
16、years?19 Do you still remember the days _we spent together last term?20 Shanghai is the city _ I was born.21 The house _ I lived ten years ago has been pulled down.22 I still remember the day _I first came to the school.23 The time _we got together finally came.24 Please tell me the reason _ you mis
17、sed the plane.25 I dont know the reason_ he looks unhappy today.26 Everything _ I know will be taught to the students.27 This is the best film _ I have ever seen.28 The manager walked toward the gate _ the workers are waiting.29 You cant go into this room _ they are having a meeting.30 I still remem
18、ber the days _ we studied together.31 The picture _ has a house and flowers is the one I like best.32 He failed in the exam, _ surprised us all .33 Her parents wouldnt let her marry anyone _ family was poor.34 Tom, _ parents are poor workers, always goes hungry.二、单项选择。( )1. This is the bag _ my moth
19、er bought yesterday.A. that B. who C. whom D. this( )2. The man _ lives next to us is my English teacher.A. whom B. which C. who D. /( )3. The girl _ you saw in the street is Mary.A. that B. whose C. which D. as( )4. Is this the factory _ a lot of students visited yesterday?A. the one B. which C. wh
20、o D. whom( )5. Is this factory _ a lot of students visited yesterday?A. the one B. that C. which D. /( )6. The only language _ is easy to learn is the mother tongue.A. which B. that C. / D. it( )7. The girl handed everything _ she had picked up in the street to the police.5A. which B. in which C. th
21、at D. all( )8. _ cleans the blackboard should be praised.A. That B. Who C. The one who D. The students who( )9. Please show me the book _ you bought yesterday.A. which B. whom C. whose D. this( )10. This is the best book _ I have been looking for all this year.A. who B. whom C. which D. /( )11. This
22、 is the only article of these that _ written by him.A. was B. were C. is D. are( )12. The man _ was here just now is a doctor.A. whom B. who C. / D. he( )13. The boy _ has two lovely dogs. A. who live next doorB. which lives next door C. whom lives next door D. that lives next door( )14. Those _ mad
23、e no mistakes in todays exercises please raise your hands.A. which B. whom C. that D. who( )15. Dont go in, this is the shop _ we have just been _.A. /, to B. that, / C. where, to D. which, there( )16. He is the most careful boy _ I know.A. what B. which C. as D. ./ ( )17. This is the school _ Mr. S
24、mith once taught.A. in that B. when C. where D. there( )18. Have you visited the house _ the famous scientist was born?A. where B. in that C. that D. which( )19. The factory _ Mr. Li used to work was closed last week.A. when B. where C. that D. which( )20. Do you still remember the day _ we first me
25、t?A. that B. when C. what D. on that( )21. The time _ we studied together is not easily forgotten.A. that B. when C. where D. in which( )22. October 1,1949 is the day _ well never forget.A. when B. that C. where D. in which( )23. October 1,1949 was the day _ the Peoples Republic of China was founded
26、.6A. which B. when C. where D. in which( )24. Is this the shop _ sells childrens clothing?A. which B. where C. in which D. what( )25. Is this museum _ they visited last month?A. that B. which C. where D. the one( )26. I still remember the sitting-room _ my mother and I used to sit in the evening.A.
27、what B. which C. that D. where三、句型转换1The film is interesting. They saw it last night. _2The students will not pass the exam. They dont work hard._3The lady is our teacher. You saw her just now. _4I was reading a book. The book is about a boy. _5He is the young writerHe wrote the book _6I like Chines
28、e tea with nothing in it. I like Chinese tea _ _nothing in it 7The girl who is wearing the red coat is very clever The girl _ the red coat is very clever 8The strange thing with three legs was used for drinking long before The strange thing _ _ three legs was used for drinking long before 参考答案答案：1.
29、that 2. that 3. where 4. where 5. when 6. which/ that 8. which 9. that 10. whose 11. whose一 单项选择 定语从句 15 A C A B A 610 B C C A D 1115 C B D D A 1620 D C A B B 2126 B B B A D D二 在下列定语从句中，用适当的介词填空。1. with 2. through 3. from 4. by 5. of 6. under 7. without 8. 7to 9. in 10. at 11. on 12. on 13. of 14. against 15. of
