初一英语定语从句测试题6篇 英语定语从句初三
下面是范文网小编整理的初一英语定语从句测试题6篇 英语定语从句初三，供大家阅读。
第四讲
高 考 命 题 走 向：
定语从句是重要的语法现象，学好定语从句对于更好地理解文章具有相当重要的意义，近年来高考试题多考查引导定语从句的关系代词和关系副词，区别限定性从句和非限定性从句，定语从句和状语从句的不同，关系代词在介词后的使用等。
预的高考题将在关系代词和关系副词的选择，which在非限定性从句中的使用，which与it的区别，that在关系从句中的使用，关系副词和连接副词的使用区别，as在定语从句中的使用等几方面进行考核。
高 考 试 题 自 评：
1. In the dark street, there wasn’t a single person ___ she could turn for help. (MET92)
A. that B. who C. from whom D. to whom
2. The weather turned out to be very good, ____ was more than we could expect. (MET94)
A. what B. which C. that D. it
3. Caral said the work would be done by October, __ personally I doubt very much. (MET99)
A. it B. that C. when D. which
4. ____ is mentioned above, the number of the students in senior schools is increasing. (上海98)
A. Which B. As C. That D. It
5. Recently I bought an ancient Chinese vase, ___ was very reasonable. (上海99)
A. which price B. the price of which
C. its price D. the price of whose
6. ---- I drove to Zhuhai for the air show last week.
---- Is that the reason ___ you had a few days off?
A. why B. when C. what D. where (NMET99)
7. Dorothy was always speaking highly of her role in the play, ___, of course, made the others unhappy.
A. who B. which C. this D. what (MET)
8. The result of the experiment was very good, ___ we hadn’t expected. (2000春)
A. when B. that C. which D. what
9. The film brought the hours back to me ___ I was taken good care of in that far-away village.
A. until B. that C. when D. where (NMET01)
10. ___ is know to everybody, the moon travels round the earth once every month. (NMET)
A. It B. As C. That D. What
11. Alec asked the policeman ____ he worked to contact him whenever there was an accident.
A. with him B. who
C. with whom C. whom (上海)
12. There’s a feeling in me ___ we’ll never know what a UFO is. (上海2002)
A. that B. which C. of which D. what
13. York, ___last year, is a nice old city.(北京)
A. that I visited B. which I visited
C. where I visited D. in which I visited
训 练 提 高：
1. Jack old me everything __ he knew about it.
A, what B. that C. which D. who
2. Lei Lei is the girl __ pronunciation is the best in our class.
A. whose B. who C. who's D. that
3. I, __ your best friend, will try my best to help you.
A. who is B. who am C. that is D. which am
4. All ____ should be done has been done.
A. what B. which C. that D. whatever
5. Who is the boy __ is reading under the tree over
there?
A. whom B. who C. which D. that
6. Around the factory, there are a lot of people __ the smoke from it does great harm.
A. to whom B. for who C. whom D. to who
7. She is the only one of the girls in our class __ been to the United States.
A. who have B. that had C. whom has D. that has
8. The room __ window is still bright is our head teacher's office.
A. which B. its C. whose D. of whose
9. I have three uncles, two of ___ are teachers.
A. whom B. who C. them D. which
10. Can you lend me the book __ the other day?
A. you talked about it B. that you talked
C. about that you talked D. you talked about
11. The two old friends talked about the persons and places __ impressed them most.
A. which B. who C. where D. that
12. These articles are written in simple language, __
makes it easy to read.
A. that B. this C. which D. it
13. My father works in the factory __ this type of truck is made.
A. in where B. in which
C. from which D. of which
14. The school ____ we visited last week was built in 1956.
A. / B. where C. that D. both A and C
15. I shall never forget the day __ we spent swimming in that beautiful lake.
A. when B. in which C. that D. on which
16. I shall never forget the day __ I joined the league.
A. on which B. in which C. that D. when that
17. China is not the same country __ it was twenty years ago.
A. that B. as C. which D. like
18. He arrived half an hour late, __ made us unhappy.
A. as B. that C. which D. when
19. Wang Fei is the boy __ I think is the most diligent in our class.
A. who B. whom C. about whom D. him
20. He is one of the few boys who __ been given the price.
A. were B. has C. have D. was
21. Is the river __ through that town very large?
A. flows B. the one flows
C. that flowing D. that flows
22. ___ leaves the room last should lock the door.
A. Those who B. Anyone C. He D. Whoever
23. She heard a terrible noise, __ brought her heart into her mouth.
A. it B. which C. this D. that
24. I gave him a warning, ____ he turned a deaf ear.
A. of which B. for which
C. about which D. to which
25. There is a mountain ____ the top is covered with snow all the year round.
A. of that B. whose C. its D. of which
26. I have some letters to write __ put off.
A. what is not to B. that can' t be
C. which cannot D. it can't be
27. The teacher told us the truth ____ practice makes perfect.
A. that B. which C. about which D. why
28. Tom told the teacher the reason ___ he was late again.
A. that B. for why C. for that D. for which
29. You should put the book ___ you took it.
A. that B. where C. which D. there
30. Is this pen ____ you are looking for?
A. the one B. that C. which D. it
歼 灭 难 点 训 练 题：
1.----Do you know our town at all?
---- No, this is the first time I __ here.
A. was B. have been C. came D. am coming
2. He paid the boy ￥10 for washing ten windows, most of __ hadn't been cleaned for at least a year.
A. these B. those C. that D. which
3. All __ is needed is a supply of oil.
A. the thing B. that C. what D. which
4. After living in Paris for fifty years, he returned to the small town __ he grew up as a child.
A. which B. where C. that D. when
5. His parents wouldn't let him marry anyone __ family was poor.
A. of whom B. whom C. of whose D. whose
6. The word“ write” has the same pronunciation __ the word “fight”.
A. of B. as C. to D. from
7. Finally, the thief handed everything ____ he had stolen to the police.
A. which B. what C. whatever D. that
浅谈定语从句
浅谈定语从句_英语教学论文引导定语从句的有：关系代词who(whom,?whose)，which,?that和关系副词when,?where,?why等。例如：
the?girl?who?had?lunch?with?me?yesterday?is?my?girl?friend.昨天与我共进午餐的那个女孩是我的女朋友。(girl是先行词，who是关系代词)
the?book?that(which)I?am?reading?is?very?interesting.我正在看的这本书非常有趣。(book是先行词，that是关系代词)
现略谈一谈关系代词和关系副词的作用和用法，引导定语从句的关系代词和关系副词在先行词和定语从句之间起联系作用，它们可以作定语从句的一个成分：
一、关系代词可以作定语从句的主语、宾语或定语。
1.who指人，是主格，在定语从句中作主语；whom是宾格，在定语从句中作宾语；whose是所有格，在定语从句中作定语。例如：
(1)This?is?Uncle?Li?who?mended?computers?for?us.这就是为我们修电脑的李叔叔。
the?student?who(that)is?playing?with?a?yoyo?is?only?seven.正在玩溜溜球的那个学生仅仅七岁。
(2)?This?is?the?man(whom)I?met?in?Australian?last?month.这就是我上个月在澳大利亚遇见的那个人。
the?soldier?whom?you?want?to?see?has?already?come.你要见的那名士兵已经来了。
(3)There?is?nobody?here?whose?name?is?Gu?Jianfei.这儿没有名叫顾剑飞的人。
my?aunt?whose?photo?I?showed?you?yesterday?will?come?to?see?us?this?evening.我姨妈今晚要来看我们，她的照片昨天我给你看过。
2.which指物，在定语从句中作主语或宾语。例如：
(1)Take?the?pencil?which?is?lying?on?the?desk.把课桌上的那支铅笔拿去。
We?visited?the?Jade?Buddha?Temple,?which?is?in?the?northwestern?part?of?Shanghai.我们参观了玉佛寺，它在上海西北边。
(2)The?factory?which?we?visited?yesterday?is?very?famous?in?the?world.我们昨天参观的那家工厂是全球闻名的。
the?money?which?they?found?in?the?street?is?mine.他们在街上找到的钱是我的。
3.that指物，有时也指人，在定语从句中作主语或宾语。指物时，它的'用法和which大致相同。例如：
(1)The?comrade?that?you?saw?is?a?combat?hero.你见到的那个同志是个战斗英雄。(that作宾语，指人)
Is?this?the?pen?that?you?were?looking?for?你要找的钢笔是这一支吗?(that作宾语，指物)
(2)The?man?that?called?me?last?night?was?killed?this?morning.昨夜给我打电话的那个人今早给人杀了。(that作主语，指人)
there?is?no?difficulty?that?cannot?be?overcome.没有不能克服的困难。(that作主语，指物)
[注1]that和which都指事物时，一般可以通用。但在下列情况下必须用that，而不能用which:
1先行词为all，everything,?nothing,?something,?anything,?much?little,?few,?none,?the?one等时。例如：
Say?all(that)you?know.把你知道的全部讲出来。
Is?there?anything(that)I?can?do?for?you?now?现在需要我为你做点什么吗?
this?book?contains?much?little?that?is?useful.这本书中有很多(没有多少)有用的东西。
I?mean?the?one?that?was?bought?yesterday.我指的是昨天买的那个。
2先行词为数词或被序数词(含last)修饰时。例如：
this?is?the?first?film(that)I?have?seen?since?I?came?here.这是我到这里以来所看的第一部电影。
the?last?place?they?visited?was?the?Summer?Palace.他们最后参观的地方是颐和园。
Look?at?those?presents.?You?can?see?the?two?that?you?gave?me.看那些礼物，你能看见你送我的那两个吗?
3先行词被形容词的最高级或the?very,?the?only等所修饰时。例如：
this?is?the?biggest?apple(that)I?have?ever?eaten.这是我所吃到的苹果中最大的一个。
She?is?the?very?thief(that)the?policeman?is?looking?for.她就是警察正在寻找的那个小偷。
mary?is?the?only?friend(that)I?have?in?Australia.玛丽是我在澳大利亚唯一的朋友。
4先行词中既有人又有物时。例如：Peter?and?his?car?that?disappeared?mysteriously?in?London?in?1987?appeared?mysteriously?in?New?York?in?1993.彼得和他的小轿车1987年在伦敦神秘地失踪，后来于1993年又神秘地出现在纽约。
We?were?deeply?impressed?by?the?teachers?and?schools?that?we?had?visited.我们访问过的老师和参观过的学校给我们留下了深刻的印象。
5先行词在主句中作表语，或关系代词在从句中作表语时。例如：
this?is?a?dictionary?that?will?help?you?a?lot.这是本对你很有帮助的字典。
Don’t?cheat?me.?I’m?no?longer?the?boy?that?I?was?three?years?ago.别骗我了，我再也不是三年前的我了。
[注2]在下列情况下不宜用that:
1.关系代词前有介词时。例如：
this?is?the?house?in?which?I?lived?ten?years?ago.这就是我十年前住过的房子。
2.先行词本身是that时。例如：
What?was?that?which?he?said?他说了些什么?
[注3]whom,which和that在定语从句中作宾语时，特别是在口语中，往往可以省略。例如：
the?man(that)you?got?the?news?from?is?a?friend?of?mine.告诉你这个消息的人是我的朋友。
Is?that?the?car(which)you?want?to?buy?那就是你所要买的汽车吗?
this?is?the?little?boy(whom)Comrade?Li?saved?yesterday.这就是李同志昨天救的那个小男孩。
二、关系代词whom,?which在定语从句里作介词的宾语时，介词一般放在先行词与关系代词之间。例如：
I?want?to?make?some?friends?from?whom?I?can?learn?a?lot.我想交几个朋友，从他们那儿我可以学许多东西。
但是，有时介词也可以放在宾语从句的后面，特别是在省略了关系代词时，介词必须放在定语从句的后面。例如：
the?room?which(that)we?live?in?is?very?bright.
the?room?we?live?in?is?very?bright.我们住的那间房间很明亮。
三、关系代词which有时指整个前面一句话。这时关系代词前面有逗号，定语从句是附加的说明；which的意思相当于and?this。例如：
tom?said?he?didn’t?know?anything?about?Kate,?which?was?a?lie.汤姆说他对凯特的情况一无所知，这是撒谎。
the?worker?didn’t?do?any?work，which?made?his?boss?very?angry.那个工人什么活也没干，这令老板非常生气。
四、关系副词where,?when和why在定语从句中分别作地点状语、时间状语和原因状语。
1.where指地点，在定语从句中作状语，相当于in等＋which。例如：
this?is?the?workshop?where(=in?which)I?work.这是我工作的车间。
A?booking?office?is?a?place?where(=in?which)tickets?are?sold.售票处就是卖票的地方。
2.when指时间，在定语从句中作状语。例如：
He?came?at?a?time?when?we?needed?help.他在我们需要人帮忙的时候来到了。
3.why指原因、理由，在定语从句中作原因状语。例如：
the?reason(why)he?changed?his?mind?is?not?clear.他改变主意的原因尚不清楚。下面再略谈一谈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不可缺少的定语，如果省去，主语的意思就会不完整或不明确。这种从句和主句之间不能用逗号分开。非限制性定语从句，只是对先行词的附加说明，如果省去，主句的意思仍然很清楚，它和主句之间常用逗号分开。试比较下列句子：
(1)I?have?a?brother?who?is?a?doctor.我有一个当医生的兄弟。(意思是我还有其他兄弟)(限制性定语从句)
(2)I?have?a?brother,?who?is?a?doctor.我有一个兄弟，是个医生。(意思是我只有一个兄弟)(非限制定语从句)
[注1]在非限制性定语从句里不宜用关系代词that。因此，凡是that所引导的定语从句，一般都是限制性定语从句。例如：
误：She?gave?me?some?flowers,?that?were?very?beautiful.
正：She?gave?me?some?flowers,?which?were?very?beautiful.(非限制性定语从句)
正：She??gave??me??some??flowers??that(which)were?very?beautiful.(限制性定语从句)
[注2]非限制性定语从句在口语里很少用，尤其是在对话里，经常是采用简单句或并列句。例如：“I?have?a?brother,?who?is?a?doctor.”这句话，在口语里总是说：“I?have?a?brother;?he?is?a?doctor.”或说：“I?have?a?brother,?and?he?is?a?doctor.”
1．定语从句在句中作定语用，修饰句中的某一名词（或代词），被定语从句所修饰的词叫先行词。定语从句必须放在先行词之后。引导定语从句关联词有：
关系代词：who，whom，whose，which，that
关系副词：when，where，why, that等。
⒈定语从句试题，主要考查使用关系词的能力。
○1找出被修饰的先行词，分析关系词在从句中的语法作用，确定关系代词：
this is the hospital（that）we visited yesterday．
此句的先行词为hospital,可用which／that，但不可用who，whom。关系词在从句中作visit的宾语，不可用where。
又如：We visited a factory＿which or that＿makes toys for children.
We visited the factory __where__ Li Ming’s father once worked.
○2掌握 which和that使用上的区别。
A. 只能用which的情况：
（l）先行词是物时，介词后的关系代词应用which，不用that。
this is the home in which（＝where）Lu Xun once lived.
若介词不前置,用that也可。
如：The room which／that we live in is clean．
（2）在非限制性定语从句中，关系代词用which．
Last night I saw a very good film, which was about the Anti-Japanese War.
（3）先行词为物，且被that或those修饰时，通常用which。如：
that book which Tom bought yesterday is useful.
b.在下列情况下，一般用that。
（1）先行词为all, everything, nothing，something，anything，little，no，much，the only，the same，the very，the first，the last，any，every时。如：
Is there anything（that）1 can do for you in town？
He was the only teacher（that）I knew in your schoo1．
（2）先行词为形容词最高级所修饰时。
this is one of the most exciting football games (that) I have ever seen.
It was the finest art exhibition that we ever saw.
先行词中既有人，也有物时。如：
Can you see a man and his horse that are crossing the bridge?
○3用词不可重复。定语从句中，己有关系词作主语、宾语或状语时，不可再重复。如：
the man＿＿＿＿was a friend of mine！
A. that you just talked to B. whom you just talked to him
C. who you just talked to him D. which you just talked to
○4as 和which可代表全句意思，但其用法有差别。它们引导非限制性定语从句，可以用整个主句作为先行词，指代上面或下面所说的一件事。区别如下：
A. as引导的从句可放在主句之前或之后，而which只可放在主句之后。如：
As is known to us all, we have made great progress in science and technology.
tom failed in the exam, which made us so sorry.
b. 从句中的谓语动词是describe, do, tell, know, expect，see, hear, watch, say, show等实义动词时，用as.
As we all know, Shakespeare is a famous writer.
to shut your eyes to facts, as many of you do, is foolish.
there is great disorder, as the newspapers will have told you.
C. 当从句的谓语动词是否定形式或从句谓语带有一个复合宾语结构时，一般用which而不用as。
如：
You pretended not to know me, which I didn’t understand.
He admires everyone in the class, which I find quite strange.
D. as 作关系代词常与the same, such配合使用。
如：
I had the same things as you.
metals are such things as iron, silver and gold.
○5 介词加关系代词中介词的选用
（1） 根据与先行词的习惯搭配。
I will never forget the day on which I joined the Party.
（2） 根据和从句中动词的固定搭配。
this is not the dictionary of which the teacher spoke in class.
（3） 根据句子的具体意义。
He invented a telescope, with which he could study the sky.
○6使用定语从句应注意的几个问题：
（1）关系代词在从句中作主语时，从句的谓语动词用单数还是复数应由先行词决定。
the mm who lives downstairs speaks English fluently.
the students who are in Grade Three are going to climb the hi11 tomorrow。
(2)定语从句有时不直接紧靠着先行词，中间由一个定语、状语或谓语隔开。
如：
there is an expression in his eyes that I can’t understand．
the days are gone forever when the Chinese people were looked down upon。
(3)引导定语从句的关系副词可以用“介词+which”来代替。
如：
0ctober l，1949 was the day on which（=when）the People’s Republic of China was founded.
(4)当定语从句中谓语动词是带介词或副词的短语动词时，短语动词的各个固定的部分不要拆开。
the dictionary which you are looking for is on the desk.
the sick man whom she is 1ooking after is her father.
一、用适当的关系代词或关系副词填空
1. The boy ______ is wearing the black jacket is very clever.
2. This is the present ____he gave me for my birthday.
3.The man _______ talked to you just now is an engineer.
4. He talked about the teachers and schools _______ he had visited.
5. There is nothing in the world ______can frighten him.
6. We visited a factory _______makes toys for children.
7. Is this the place _______ your father once lived
8. I’ll never forget the days _______ I joined the League.
9The car______my father bought last month is beautiful.
10The man______hair is white is his grandfather.
二 选择题
( )1.Rosa likes music ___ is quiet and gentle. A. when B. that C. where D. who
( )2.--Is the girl _ is interviewing the manager of that company your friend--Yes, she is a journalist from CCTV.
A. whom B. which C. who D. whose
( )3 Yao Ming is a famous basketball star ___ is playing in the NBA. A. whose B. who C. what D. which
( )4. The doctor ___I am waiting for is Mr. Smith. A. which B. whom C. whose D. why
( )5. --- Do you know Hong Zhanhui? ---Yes. He’s the college student ____ has moved Chinese people a lot.
A. who B. which C. what D. whom
( )6. In my family, my sister is the only person __ loves chocolate. A. which B. who C. whom D. she
( )7. This is the place ____ the old man lived last year. A. when B. where C. that D.which
( ) 8. The song ___ Jay Zhou sings are popular with students. A. why B. whom C. what D. which
( )9. The farmer was very thankful to the doctor ___ treated his son. A. what B. which C. who D. whose
( )10.I like to live in a house__ is big and bright. A. that B. who C. how D. why
( )11. The young lady ___ we met yesterday is our new math teacher. A. what B. whose C. whom D. which
( )12. --Can you introduce the town to me? --OK. This is the town in __ I was born. A. that B. who C. which
( )13. Miss green is the only person __ can help you with your English. A. she B. whom C. which D. who
( )14. I like the second football match ___was held last week. A. which B. who C. that D. /
( )15. Is there anything ____ to you? A. that is belonged B. that belongs C. that belong D. which belongs
( )16. I hate people ___ don’t help others when they are in trouble. A. who B. which C. they
( )17. This is the only book ___I am looking for. A. that B. which C. who D. whom
( )18 Her sister__ you met at my home was a teacher of English. A. whom B. that is C. which D. who is
( )19 The book__is sold out at the moment. A.you need Bwhat you need C.which you need it D that you need it
( )20 I'm one of the boys ______never late for school. A. that is B. who are C. who am D. who is
( )21.__cleans the classroom can go home first. A. Anyone B. Those who C. However D. The one who
( )22. The old man __yesterday is a scientist.A.I spoke B. I spoke to C. whom I spoke D. that I spoke to him
【拓展延伸】
定语从句
定语从句（Attributive Clauses）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。
定语从句（Attributive Clauses）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。
☆ 关系代词和关系副词的选用取决于先行词及它们在定语从句中的语法成份
关系代词 先行词 在定语从句中充当的语法成份
Who 人 主语
Whom 人 宾语
Whose 人或物 定语
Which 物 主语或宾语
that 人或物 主语或宾语
关系副词 先行词 在定语从句中充当的语法成份
When 表时间的名词 时间状语
Where 表地点的名词 地点状语
Why 表原因的名词 原因状语
that用于表示时间、地点、方式、理由的名词后取代when, where, why和“介词+ which”可作关系副词
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，在从句中所起作用如下：
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
它们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)
☆ 当关系代词在定语从句中充当宾语时，可把关系代词省掉
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）when, where, why
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
that可以用于表示时间、地点、方式、理由的名词后取代when, where, why和“介词+ 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。
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.
I'll never forget the days when I worked together with you.
判断改错
this is the mountain village where I visited last year.
I will never forget the days when I spent in the countryside.
this is the mountain village (which) I visited last year.
I'll never forget the days (which) I spent in the countryside.
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/关系副词。
例1. Is this museum ___ you visited a few days age?
A. where B. that C. on which D. the one
例2. Is this the museum ____ the exhibition was held.
A. where B. that C. on which D. the one
4 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。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，例如：
this is the house which we bought last month. 这是我们上个月买的那幢房子。（限制性）
the house, which we bought last month, is very nice.这幢房子很漂亮，是我们上个月买的。（非限制性）
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的，例如：
Charles Smith, who was my former teacher, retired last year. 查理史密斯去年退休了，他曾经是我的老师。
my house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。
this novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时as和which代替的是整个主句，相当于and this或and that。As一般放在句首，which在句中。并且从句谓语动词要用第三人称单数，例如：
He seems not to have grasped what I meant, (=and that)which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, which (=and that) is called evaporation. 液态水变为蒸汽，这就叫做蒸发。
☆ As还在以下几种结构中作关系代词引导定语从句
① the same as : He is just the same as he use to be.他还是和过去一样
② such…as : Such passengers as survived the explosing were drowned.象那些在爆炸中幸免遇难的乘客都被淹死了
③ as…as : As many as we found were taken to the hospital.我们找到多少就送到医院
☆关系代词that和关系副词why不能引导非限制性定语从句。
5 介词+关系词 (介词前置：关系代词如果在定语从句中充当介词的宾语，可把介词前置到关系代词的前面，形成介词+关系代词的结构)
1）介词后面的关系代词不能省略。
2）that前不能有介词。
3）如果关系代词是动词短语的宾语，动词短语的介词不能前置
错误用法：This is the girl of whom he will take care.
正确用法：This is the gril whom he will take care of
4）某些在从句中充当时间，地点或原因状语的“介词+关系词”结构可以同关系副词when 和where 互换。
this is the house in which I lived two years ago.
this is the house where I lived two years ago.
Do you remember the day on which you joined our club?
Do you remember the day when you joined our club?
☆另外还应注意的是:
①way后常用that代替in which，也可省略that
I really don't like the way (that) he talks.
that was the way in which the old lady looked after us.
②of which起形容词的作用，相当于whose（用来指物）
they live in a house whose door (the door of which) opens to the south.
③相同的先行词在表示不同的含义时，要根据其含义用不同的介词。
I can't remember the age at which he won the prize.我记不起他获得奖金的年纪
that is the age in which people live in peace and happiness. 那正是人们生活在和平幸福的时期
Age在前句中意为“年岁”，与at搭配，在后句中意为“时期”，与in搭配。
④先行词或定语从句中的动词、形容词要根据不同的具体语境选择适当的介词。 This is the bus on which the accident happened. 这是发交通意外的那辆巴士
this is the bus by which I came to this town. 这是我搭程去镇上的巴士
6 Which和that 的选用
1）当先行词是不定代词(everything , something , anything , littlt , much)时，只能用that
Is there anything that I can help you? 有什么我可以帮你的吗？
2)当先行词被序数词所修饰时，只能用that
this is the second book that was written by the writter. 这是那个作者写的第二本书
3)当先行词被形容词的最高级修饰时，只能用that
this is the best film that I have ever seen. 这是我所看过的最好的电影
4)当先行词前有限定词(or , every , a few , noly , some , very等)修饰时，只能用that
this is the only film that I wanted to see. 那正是我唯一想看的电影
5）在there be句型中，只用that，不用which
6）先行词既有人，又有物时，只能用that
5)当介词前置时，只能用which(P5-2)
6)在非限制定语从句，只能用which(并在前用 ，号与主句隔开)
7 But引导的定语从句相当于一个否定从句
there is no one but knows about the matter. 没有人不知道这事
8定语从句和同位语从句的区别
1）同位语从句与前面的名词是同位关系，即说明它前面名词的内容；而定语从句与前面的名词是修饰与被修饰关系，即限定它前面的名词范围，或补充一些情况。
the news that l hove passed the exam is true．我通过了考试这一消息是真的。（同位语从句，即从句所表达的意思就是前面名词的内容。）
the news that he told me just now is true．他刚才告诉我的消息是真的。 （定语从句，从句对前面名词起修饰限制作用，即“他告诉我的”那个消息，而不是别的消息。）
2) 引导同位语从句的that是连词，在从句中不充当任何成份，而引导定语从句的that是关系代词，除起连接作用外，还在从句中充当主语、宾语或表语等。如：
the idea that computers can recognize human voices surprises many people. 计算机能够识别人的声音的想法使许多人感到惊奇。（that在从句中不充当任何成份。）
the idea that he gave surprises many people． 他提出的观点令许多人感到吃惊。 （that在从句中作gave的宾语。）
定语从句练习
1易混易错定语从句练习
有些定语从句方面的题，如果不仔细审题、不弄清句意和句子结构，就很可能把一些似是而非的东西搞混，从而降低解题的准确性。要想解决这个问题就得从准确理解句意和理清句子结构入手。
1．①Who lives in the house ＿＿＿ windows face south？
② Who lives in the house ＿＿＿ the windows face south？
A．whose B．which C．of which D．that
解析：答案是①A②C。在句①中windows前没有定冠词，它所缺的是定语形容词，而whose的用法就是在定语从句中作定语且既可指人也可指物。在句②中windows前有定冠词，所以要填的内容不能作前置定语，又因为“房子的窗户”用英语表达是“the windows of the house”，故可用of which引导定语从句。
2．①Is this factory ＿＿＿ you visited last year？
②Is this the factory ＿＿＿＿＿＿you visited last year？ A．that B．of which C．the one D．wher
解析：答案是①C②A。在句①中factory前没有定冠词，这说明this是作它的定语。这样，句中就缺少表语，也就是说定语从句缺少先行词，故选C（the one后省略了that）。在句②中this作主语，the factory作表语，其后带一个that引导的定语从句，故选A
3．①John is the only one of the students who＿＿＿French．
②John is one of the students who ＿＿＿ French．
A．know B．knows C．knowing D．known
解析：答案是①B②A。在句①中的句意是“约翰是学生中唯一懂法语的那个学生”，其重心是the only one故从句谓语动词应与one一致。在句②中的句意是“约翰是懂法语的学生中的一个”，也就是“懂法语的学生不止一个，约翰只是其中之一”，其重心是the students，故从句中谓语动词应与students一致。
4．①When I have trouble，he is the only one ＿＿＿I can ask for help．
②When I have trouble，he is the only one ＿＿＿I can go for help．
A．whom B．to whom C．which D．to who
解析：答案是①A②B。句①中，在结构上所要添的内容在从句中作ask的宾语其句式是ask sb．for sth．，故用whom引导定语从句。在句②中，go是不及物动词其句式是go to sb．for sth．，故用to whom引导定语从句。
5．①This is the knife ＿＿＿I usually cut my pencil．
②This is the knife ＿＿＿I usually use to cut my pencil．
A．with which B．which C．by which D．with that
解析：答案是①A②B。在句①中，定语从句的句式是cut my pencil with the knife，故用with which引导定语从句。在句②中，定语从句的结构是use the knife to cut my pencil，故用which引导定语从句。
6．①Last summer he went to Beijing，＿＿＿ he had visited twice．
②Last summer he went to Beijing，＿＿＿ he visited a lot of places of interest．
A．which B．where C．that D．there
解析：答案是①A或B②B。在句①中，所要填的内容在定语从句中应作visited的宾语，故应填关系代词which或that。在句②中，所要填的内容在定语从句中作地点状语，故应填关系副词where。 7．①He still remember the days ＿＿＿we spent together．
②He still remember the days ＿＿＿we spent the summer holidays together．
A．which B．when C．where D．that
解析：答案是①A②B。在句①中，所要填的内容在定语从句中应作spent的宾语，故应填关系代词which。在句②中，所要填的内容在定语从句中作时间状语，故应填关系副词when。
8．①The reason ＿＿＿ he gave us was that his car broke down on the way．
②The reason ＿＿＿ he was late was thathis car broke down on the way．
A．why B．which C．how D．what
解析：答案是①B②A。在句①中，所要填的内容在定语从句中应作gave的宾语，故应填关系代词which。在句②中，所要填的内容在定语从句中作原因状语，故应填关系副词why。
2高考真题练习
1. (’03北京24)York, ________ last year ,is a nice old city.
A. that I visited B. which I visited C. where I visited D. in which I visited
【解析】 考查非限制性定语从句。是用关系代词或者是用关系副词引导定语从句，要根据他们在定语从句中的成份来确定，visit是及物动词，后面需要用关系代词作宾语，排除C，D。that 不用于非限制性定语从句中，排除A。答案为B。
2.(’03上海41)I can think of many cases _________ students obviously knew a lot of English words and expressions but couldn't write a good essay.
A. why B. which C. as D. where
【解析】 考查定语从句。此句的先行词是many cases，单看从句与先行词的关系应是：students obviously knew a lot of English words and expressions but couldn't write a good essay in many cases.因此应用in which或where引导定语从句，备选答案中没有in which，于是选where。答案为D。
3. (’03上海44)There is a new problem involved in the popularity of private cars _________ road conditions need_________.A. that ...to be improved B. which...to be improved C. where ...improving D .when...improving
【解析】 考查同位语从句。因为先行词在从句中不作任何成份，因此用关系词that，故B、C、D均不正确。对于第2个空，need既可作实义动词，又可作情态动词。作实义动词时后跟动词不定式，即need to do sth，另外 road conditions与improve之间是被动关系，因此是need to be improved(need to be done=need doing)。译文：私家车受欢迎所涉及到的新问题是道路状况需要改善。答案为A。
4.(’03北京春季31)We are living in an age ________ many things are done on computer.
A. which B. that C. whose D. when
【解析】 这是定语从句，先行词是age,表时间，所以用when引导。答案为D。
5.(’03安徽春季24)People have heard what the President has said; they are waiting to see _________he will do.
A. how B. what C. when D. that 【解析】 考查宾语从句。what引导宾语从句，在从句中作do的宾语。排除A、C、D。答案为B。
6.(’03上海春季32)_________ has been announced ,we shall have our final exams next month.
A. That B. As C. It D. What
【解析】 as引导定语从句表示“正如……”，并非某个名词或代词是先行词，而是整个主句所表达的内容是定语从句所修饰的。译文：正如所宣布的那样，下月我们将进行期末考试。答案为B。
7.(’02北京22)We will be shown around the city :schools ,museums ,and some other places, ________ other visitors seldom go. A. what B. which C. where D. when
【解析】 这是一个定语从句，先行词是places，表示地点，非限定性定语从句中缺少状语，因此用where来引导定语从句，故要填where。译文：我们被带领着参观了这座城市：学校、博物馆和其他一些游人很少去的地方。答案为C。 8.(’02上海31)Alec asked the policeman _______ he worked to contact him whenever there was an accident.
A. with him B. who C. with whom D. whom
【解析】 这是一个定语从句，the policeman是先行词。work是不及物动词，“work with sb”意为“与某人共事”，所以定语从句应为with whom he worked。译文：无论何时发生事故时，Alec要求与他一起工作的警察与他联系。答案为C。
9.(’02上海35)There's a feeling in me _______we'll never know what a UFO is-not ever.
A. that B. which C. of which D. what
【解析】 同位语从句that we'll never know what a UFO is-not ever作a feeling的同位语，解释a feeling的具体内容。that连接同位语从句时，只起连接作用不作从句的任何成分。译文：我有一个这样的感觉，我们不会知道什么是UFO--永远不会。答案为A。
10.(’02京、蒙、皖春季35)The famous basketball star, ______tried to make a comeback, attracted a lot of attention.
A. where B. when C. which D. who
【解析】 先行词是The famous basketball表示人，非限定性定语从句中缺少主语，因此要填who。who在定语从句中作主语。答案为D。
11.(’02上海春季35)Is this the reason _______at the meeting for his carelessness in his work?
A. he explained B. what he explained C. how he explained D. why he explained
【解析】 the reason后接定语从句。因为先行词the reason作explained的宾语，用that或which引导定语从句在从句中作宾语时省略。译文：这就是他在会议上对他为什么在工作上粗心大意的理由所作的解释吗?答案为A。
12.(’01全国22)The film brought the hours back to me_________I was taken good care of in that far-away village.
A. until B. that C. when D. where
【解析】 when引导定语从句(the hours的定语)，修饰先行词the hours,when在从句中作状语。译文：这部电影使我回忆起我在那偏远的村庄得到无微不至的照顾的时光。答案为C。
13.(’01上海35)Information has been put forward ________ more middle school graduates will be admitted into universities. A. while B. that C. when D. as
【解析】 这是一个同位语从句。that引导从句作information的同位语，解释information的具体内容。注意：that和what引导名词性从句(主语、宾语、表语和同位语从句)的区别：that引导名词性从句，只起引导作用，在从句中不作成分。that引导宾语从句时，that可省略，而在其他三个从句中，that虽不作成份，一般也不省略；what在这四个名词从句中一定作成分，作主语、宾语、表语或补语。译文：有消息说，更多的中学毕业生将进入大学。答案为B。
14.(’01上海37)He's got himself into a dangerous situation ________ he is likely to lose control over the plane.
A. where B. which C. while D. why
【解析】 这是一个定语从句。先行词是a dangerous situation。因为situation的意思是“位置”，所以要填where。译文：他已陷入飞机似乎失去控制的危险境地。答案为A。
15.(’01京、蒙、皖春季11)John said he’d been working in the office for an hour, ______was true.
A. he B. this C. which D. who
【解析】 考查非限定性定语从句。which引导非限定性定语从句，修饰整个主句所表达的内容。答案为C。
16.(’01上海春季30)Have you seen the film “Titanic”, ________leading actor is world famous?
A. its B. it's C. whose D. which
【解析】 这是一个定语从句，因为先行词the film “Titanic”和leading actors是所属关系，所以要填写whose。答案选C。
17.(’00全国17题)Dorothy was always speaking highly of her role in the play, _________,of course , made the others unhappy. A．who B．which C．this D．what
【解析】 这是一个非限制性定语从句，which指代Dorothy夸大自己在剧中角色的作用这件事。答案选B。
18.(’00上海28)Recently I bought an ancient Chinese vase, ________ was very reasonable. A. which price B. the price of which C. its price D. the price of whose
【解析】 这是一个非限定性定语从句。根据句意可知是花瓶的价格。在定语从句中表示“谁的”，可以这样表达，如：I live in the room whose windows face south(名词前没有冠词，用whose)=I live in the room the windows of which face south(如果名词前有冠词就用of which)，答案为B。
19.(’00上海30)She found her calculator ________ she lost it.
A. where B. when C. in which D. that
【解析】 这是一个地点状语从句，意思是“东西是在丢的地方找到的。”in which用于定语从句中，其前必须有先行词。这个句子中没有先行词，所以不能填in which。答案为A。
20.(’00上海35)Greenland, ________island in the world, covers over two million square kilometres.
A. it is the largest B. that is the largest C. is the largest D.the largest
【解析】 有些考生把这个句子理解成了定语从句，误选了选项B。如果这是非限制性定语从句，必须用关系代词which引导，而不用that，即which is the largest islad in the world。实际上，the largest island in the world作Greenland的同位语。答案选D。
21.(’00京、皖春季10)The result of the experiment was very good, ________we hadn't expected.
A. when B. that C. which D. what 【解析】 这是一个非限制性定语从句，which在定语从句中作hadn't expected的宾语。这句话的意思是“实验的结果很好，是没有预想到的”。答案选C。
22.(’00京、皖春季16)It was an exciting moment for these football fans this year,________for the first time in years their team won the World Cup.
A. that B. while C. which D. when 【解析】 根据句子的结构可以排除that和which。再根据所提供的情境It was an exciting moment可以看出是一个时间状语从句。注意：while的意思是during the time that表示一段时间内；when的意思是of that time that表示某个时刻，与an exciting moment相对应。这句话的意思是“当他们的队首次进入世界杯时，对于这些足球迷来说是今年的一个令人激动的时刻”。答案为D。
23.(’全国19)Carol said the work would be done by October, ________personally I doubt very much.
A. it B. that C. when D. which 【解析】 在这个非限制性定语从句中，关系代词which代替Carol所说的话。这句话的意思是“Carol说工作将在十月完成，我个人对此表示怀疑。”答案选D。