语语法是针对英语语言进行研究后，系统地总结归纳出来的一系列语言规则。英语语法的精髓在于掌握语言的使用。下面是小编精心为大家整理的定语从句用法解析（优秀8篇），希望大家可以喜欢并分享出去。
that常用作关系代词，可指代某人，也可指代某物，指物时有的时候可用which替换that，指人时可用who替换。但在下列情况下，一般用that。
一、that指代某物事时
1、先行词为all, few, little, much, the one, something, anything, everything, nothing等时。如：
（1）We'll do all that we can to protect the endangered plants and animals.
我们将尽我们的最大努力来保护那些濒危的动植物。
（2） There is much that I wan to tell you.
我有很多想要告诉你的话。
（3） Is there anything that I can do for you?
有什么我可以帮你的吗？
2、 先行词被all, every, no, some, any, (a)few, (a)little, much等限定词修饰时。如：
（4） You can borrow any book that you want to read in our school library.
在我们图书馆，你可以借任何你想读的书。
3、 先行词被序数词或形容词最高级修饰时。如：
（5）This is the most beautiful city that I've ever seen.
这是我见过的最漂亮的城市。
4、 先行词被the only, the very, the right, the last 等修饰时。如：
（6）This is the very factory that they visited last summer holiday.
这恰好是他们去年参观的那个工厂。
（7）This is the only painting in this style that we have.
这种风格的画我们仅有一幅。
5、 先行词是并列结构，既有人又有物时。如：
（8）He talked happily of the writer and his books that interested him.
6、 先行词前有the same 修饰，表示和先行词是同一物时。如：
（9）This is the same purse that I lost yesterday.
这就是我昨天丢的那个钱夹。
注：如果表示的是与先行词同一类或相似的某物，则用the same…as…。如：
（10）This is the same purse as I lost yesterday.
这个钱夹和我昨天丢的那个一样。
7、 先行词为数词时。
（11）Look at the books on the bookshelf. You can see the two that you bought me for my birthday.
瞧书架上那些书。你可以看到我过生日时你买的那两本。
8、 如果which引导的定语从句中又含有一个定语从句，为避免重复，第二个定语从句用that。如：
（12）They built a factory which produced things that had never been seen.
他们建了一工厂，生产以前从未见过的东西。
9、 以which作主语开头的特殊问句，为了避免重复，定语从句用that。如。
（13）Which is the bus that you will take?
你要乘的是哪一班车？
10、 关系代词在定语从句中作表语时，而且通常省略。如：
（14）My hometown is no longer the place that it used to be.
我的家乡再也不是以前那个样子了。
11、 关系代词在there be 句型中作主语时，而且常可以省略。如：
（15）This is the fastest train (that) there has ever been.
这是有史以来最快的列车。
二、that 指代某人时。
1、 泛指某人时。如：
（16）He is a man that is never at a loss.
他是一个从未一筹莫展的人。
2、 主句是以作主语的who开头的。特殊问句，为了避免重复时。如：
（17）Who is the person that is talking with our headmaster?
和我们校长说话的那人是谁？
3、 先行词前有the same时。如：
（18）This is the same man that gave us a talk last year.
这和去年给我们作报告的是同一人。
4、 关系代词在定语从句中作表语时。如：
（19）He has changed. He was not the man (that) he was 10 years ago.
他变了。他再也不是10年前的他了。
另外，that也可用作关系副词，表示时间、地点、原因和方式，在口语中可以用来代替when, where, why 引导的定语从句。在以下名词day, year, time, moment, reason, place等作先行词时，可用that作关系副词引导定语从句。如：
（20）I'll never forget the day (that) I joined the League.
我永远不会忘记我入团的那一天。
（21）Is this the reason (that) they were late for the meeting?
这就是他们开会迟到的原因吗？
（22）We want to find a place (that) we can have a picomic.
我们想找一个我们能野餐的地方。
（23）This is the first time that I have been abroad for traveling.
这是我第一次到国外去旅游。
（注：先行词是time,前面有序数词或last修饰时，常用that引导定语从句或者省略。）
当先行词为表示方式的词the way时，可用that引导定语从句， that常可以省略。
（24）I don't the way you speak to her.
我不喜欢你和她说话那种方式。
1.who指人在从句中做主语
（1） The boys who are playing football are from Class One. 在踢足球的男孩们是一班的。
（2） Yesterday I helped an old man who lost his way. 昨天，我帮助了一个迷路的老人。
2. whom指人，在定语从句中充当宾语，常可省略。
（注：who和whom已无太大区别，可以通用。）
（1） Mr. Liu is the person (whom) you talked with on the bus. 刘先生就是在公交车上和你聊天的那个人。
（2） Mr. Ling is just the boy whom I want to see. 凌先生恰巧就是我想见的那个男孩。
（3） The man who/whom you met just now is my friend. 你刚刚见到的那个人就是我的朋友。
注意：关系代词whom在口语和非正式语体中常用who代替，可省略。
如果在从句中做宾语，就用whom或who.比如: He is the man whom/who I talk to. 他就是那个和我聊天的男人。
如果是在从句中作主语就只能用who.比如: He is the man who has an English book. 他就是那个有英语书的男人。
3.which指物，在定语从句中做主语或者宾语，做宾语时可省略
（1） Football is a game which is liked by most boys. 足球是大多数男孩都喜欢的游戏。
（2） This is the pen (which) he bought yesterday. 这是他昨天刚买的钢笔。
4. that指人时，相当于who或者whom；指物时，相当于which。
在定语从句中做主语或者宾语，做宾语时可省略。
（5） The number of the people that/who come to visit the city each year rises one million.
（6） Where is the man that/whom I saw this morning?
5. whose通常指人，也可指物，在定语从句中做定语
（1） He has a friend whose father is a doctor.
（2） I once lived in a house whose roof has fallen in.whose指物时，常用以下结构来代替
（3） The classroom whose door is broken will soon be repaired.
（4） The classroom the door of which is broken will soon be repaired.
（5） Do you like the book whose color is yellow?
（6） Do you like the book the color of which is yellow?
1、限定性定语从句和非限定性定语从句
定语从句就其与先行词的关系而言，可分为限定性定语从句和非限定性定语从句。限定性定语从句和先行词之间没有逗号，表示对先行词起修饰限制作用；而非限定性定语从句和先行词之间有逗号分开，是对先行词进行补充说明，相当于并列句。
如：He is the man who has a strong personality. 他是个个性很强的人。（限定性定语从句）
My brother, who works abroad, is coming next week. 我哥哥在国外工作，他下周将回来。（非限定性定语从句）
注：
1) 非限定性定语从句不能用that来引导，一般用which，as或who（指人）。用which或as引导时，既可以修饰主句的部分内容，也可修饰主句的全部内容。如：
He spoke confidently, which impressed me most. （which指代整个主句，在从句中作主语）
2) as引导的非限定性定语从句既可以放在主句之前，也可以放在主句之后，但which或who引导的非限定性定语从句不能放在主句之前。如：As we all know, the moon is a satellite of the earth.The large area is covered with thick snow, which affects people‘s life greatly.
3) 在限定性定语从句中，关系代词作宾语时可以省略；但在 非限定性定语从句中，关系代词作宾语时不能省略。如：
The film （which) I saw last night is about a young teacher. (which可以省去）
She introduced me to her husband, whom I hadn’t met before. （whom不能省去）
2、只用关系代词that，不用 which，who或whom的几种情况
1)当先行词是all, everything, nothing, something, anything, little, much, none, few等时。如：All that you want are here.
2) 当先行词被all, no, some, any, every, a few, a little, much, only, very等修饰时。如：There is no person that doesn’t make mistakes.
3)当先行词被序数词或形容词最高级修饰时。如：This is the best film that I have ever seen.
4)当出现两个或两个以上的先行词，并同时兼指人和物时。如： We are talking about the people and countries that we have
visited.
5) 当主句是以which 或 who 开头的特殊疑问句时。如： Who is the person that is standing over there?
6) 当定语从句为there be 句型时，关系代词只用that，
但经常可以省略。如： I know the difference (that) there is between you.
7)当关系代词在从句中作表语时，常用that。如：He does not seem to be the man that he was
他似乎和过去不一样了。
3、 as 与其他词连用引导的定语从句
as 引导定语从句时，可指人也可指物，通常与the same，such，so等连用，形式为：the same… as，such… as，as …as，so… as。As在定语从句中可作主语、宾语、表语等。如：
She knew he felt just the same as she did. 她知道他的感觉与她自己的一样。（as代替事，作宾语）
I lend you such books as will interest you. 我借给你使你感兴趣的书。（as代替物，作主语）
注：the same… as 和the same… that的用法不同。as引导的定语从句表示其内容与主句所讲的事物“相似”，指同类事物；that引导的定语从句表示其内容与主句所讲的`事物是“同一个”，指同一事物。如：
This is the same pen as I lost yesterday. 这和我昨天丢的笔一样。（类似的笔）
This is the same pen that I lost yesterday. 这支笔就是我昨天丢的那支。（同一支笔）
4、“介词+关系代词”引导的定语从句
在“介词+which/whom”结构中，介词的选择取决于3种情况：
1)定语从句中谓语动词或表语的搭配。如： This is the college in which I am studying. He is the man about whom we are talking.
2)先行词与介词的习惯搭配。如： The speed at which the machine operates is shown on the meter.
仪表上显示出这台机器运转的速度。
3)当定语从句为最高级时只能用of which; 否则用其他介词。如： I have five dictionaries of which Longman Dictionary is the best. I have five dictionaries among which Longman Dictionary is published in UK.
注：不可拆分的动词短语介词不能提前，如put up with;有的短语可能有不同的介词搭配，此时需要根据上下文来确定。如：be familiar with/to，compare with/to等。
有时为表意清楚，还可以在关系副词where/ when前加介词from, to等。如：
China is the birthplace of kites, from
where kite flying spreads to Japan, Korea, Thailand and India.
中国是风筝的故乡，从这里，放风筝的运动传到了日本、韩国、泰国和印度。
注 定语从句和同位语从句的区别
定语从句在复合句中的功能相当于形容词，它对先行词起修饰、描述或限制作用。而同位语从句则属于名词性从句，对与它有同位关系得名词作进一步解释，使其内容具体化。例如：
She felt very sad because of the news that her husband was killed in an aircraft crash. （同位语从句）
The fact that she told me made me very angry. （定语从句）
1.先行词为all, anything, something, nothing, everything, much, little, none等不定代词时，关系代词一般只用that，不用which。在大多数情况下that可以省略。
Please tell me everything you know about the matter.
Thats all we can do at the moment.
2.as引出的限制性定语从句
在such as的结构中as可作关系代词，引出限制性定语从句。有时和same连用，在从句中可作主语、宾语或表语等。
Such people as were recommended by him were reliable.
Ive never seen such a talented young man as he is.
I have the same trouble as you 。
3.as引出的非限制性定语从句
as可作关系代词引出非限制性定语从句，代替整个主句，通常译为（正)如一样，(正）象一样等。as引导的从句一般用逗号与主句隔开，可以位于主句的前面、中间或后面。
I live a long way from work, as you know.
She did not, as her friend had feared, break down.
As is generally accepted, economic growth is determined by the smooth development of production.
4.分隔式定语从句
定语从句一般紧跟在先行词之后，但有时会被其他句子成分与先行词隔开，从而构成分隔式定语从句。
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
1)Whoever spits in public will be punished here.
（Whoever 可以用 anyone who 代替）
2)The parents will use what they have to send their son to technical school.
（what 可以用all that代替）
The man who is shaking hands with my father is a policeman.
The boys who are playing football are from Class One.
Those who want to go to the museum must be at the school gate at 7 tomorrow morning.
Yesterday I helped an old man who had lost his way.
Mr Liu is the person whom you talked about on the bus.
Li Ming is just the boy whom I want to see.
The professor whom you are waiting for has come.
The girl whom the teacher often praises is our monitor.
The man whom you met just now is my old friend.
Football is a game which is liked by most boys.
The factory which makes computers is far away from here.
He likes to read books which are written by foreign writers.
This is the pen which he bought yesterday.
The film which they went to see last night was not interesting at all.
The number of people that come to visit this city each year reaches one million.
Where is the man that I saw this morning?
The person that /whom you introduced to me is very kind.
The season which comes after spring is summer.
Yesterday I received a letter which came from Australia.
I visited a scientist whose name is known all over the country.
He has a friend whose father is a doctor.
I once lived in the house whose roof has fallen in.
The classroom whose door is broken will soon be repaired.
The classroom the door of which is broken will soon be repaired.
Do you like the book whose cover is yellow?
Do you like the book the cover of which is yellow?
The school which he once studied in is very famous.
The school in which he once studied is very famous.
Tomorrow I’ll bring here the magazine which you asked for.
Tomorrow I’ll bring here the magazine for which you asked.
This is the boy whom I played tennis with yesterday.
This is the boy with whom I played tennis with yesterday.
We’ll go to hear the famous singer whom we have often talked about.
We’ll go to hear the famous singer about whom we have often talked.
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.
I still remember the day when I first came to this school.
The time when we got together finally arrived.
October 1, 1949 was the day when the People’s Republic of China was founded.
The reason why he was punished is unknown to us.
I don’t know the reason why he looks unhappy today.
The house where I lived ten years ago has been pulled down.
I visited the farm where a lot of cows were raised 。
Is this the place where they fought the enemy?
Please tell me the reason why you missed the plane.
Do you remember the years when he lived in the countryside with his grandparents.
定语从句在初中英语中的重要性主要体现在完形、阅读和写作中，因此，能否较好的掌握定语从句直接关系到你英语成绩的拔高。其实，定语从句并不难。
一。 定语从句的概念
在复合句中，修饰某一名词或代词的从句叫定语从句。被修饰的名词或代词叫先行词，引导定语从句的词叫关系词，定语从句一般放在先行词的后面。
二。 引导定语从句的关系词
引导定语从句的关系词有关系代词和关系副词，常见的关系代词包括that， which， who（宾格whom，所有格whose）等，关系副词包括where， when， why等。关系代词和关系副词放在先行词及定语从句之间起连接作用，同时又作定语从句的重要成分。
三。 定语从句的分类
根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去。非限制性定语从句与主句之间有逗号分开，起补充说明作用，如省去，意思仍完整。
四。 关系代词的用法
1、 that 既可以用于指人，也可以用于指物。在从句中作主语、宾语或表语。作主语时不可省略，作宾语可省略。例如：
Mary likes music that is quiet and gentle.
玛丽喜欢轻柔的音乐。（that作主语）
The 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）
2.which用于指物，在句中作主语、宾语或表语。作主语不可省略，作宾语可省略。例如：
The building which stands near the train station is a supermarket.
位于火车站附近的那座大楼是一家超市。（作主语）
The 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）
3.who， whom用于指人，who 用作主语，whom用作宾语。在口语中，有时可用who代替whom。who和whom作宾语时也可省略。例如：
The 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）
Who is the teacher （whom） Li Ming is talking to？
正在与李明谈话的老师是谁？（作宾语）
注意：
（1）当定语从句中含有介词，介词放在句末时，who，whom，that， which可省略，但介词在关系代词前时，只能用介词+which/whom结构。例如：
This is the house in which we lived last year.
这是我们去年居住的房子。
Please tell me from whom you borrowed the English novel.请告诉我你从谁那借的这本英文小说。
（2）含有介词的固定动词词组中，介词不可前置，只能放在原来的位置上。例如：
This is the person whom you are looking for.
这就是你要找的那个人。
（3）that 作介词的宾语时，介词不能放它的前面，只能放在从句中动词的后面。例如：
The city that she lives in is very far away.
她居住的城市非常远。
（4）关系词只能用that的情况：
a. 先行词被序数词或形容词最高级所修饰，或本身是序数词、基数词、形容词最高级时，只能用that，而不用which.例如：
He was the first person that passed the exam.
他是第一个通过考试的人。
b. 被修饰的先行词为all， any， much， many， everything， anything， none， the one等不定代词指物时，只能用that，而不用which.例如：
Is there anything that you want to buy in the shop？
你在商店里有什么东西要买吗？
c. 先行词被the only， the very， the same， the last， little， few 等词修饰时，只能用that，而不用which.例如：
This is the same bike that I lost.
这就是我丢的那辆自行车。
d. 先行词里同时含有人或物时，只能用that， 而不用which.例如：
I can remember well the persons and some pictures that I saw in the room.
我能清楚记得我在那个房间所见到的人和一些照片。
e. 以who或which引导的特殊疑问句，为避免重复，只能用that.例如：
Who is the girl that is crying？
正在哭泣的那个女孩是谁？
f. 主句是there be 结构，修饰主语的定语从句用that，而不用which，例如：
There is a book on the desk that belongs to Tom.
桌子上那本书是汤姆的。
（5）关系词只能用which，而不用that 的情况：
a. 先行词为that， those时，用which， 而不用that.例如：
Whats that which is under the desk？
在桌子底下的那些东西是什么？
b. 关系代词前有介词时，which，而不用that.例如：
This is the room in which he lives.
这是他居住的房间。
c. 引导非限制性定语从句，先行词指事物时，用which， 而不用that，例如：
Tom came back， which made us happy.
汤姆回来了，这使我们很高兴。
五。 关系副词的用法
1、 when指时间，其先行词表示时间，when在定语从句中作时间状语。例如：
This was the time when he arrived.
这是他到达的时间。
2、 where指地点，其先行词表示地点，where在定语从句中作地点状语。例如：
This is place where he works.
这是他工作的地点。
3、 why 指原因，其先行词是原因，why在定语从句中做原因状语。例如：
Nobody knows the reason why he is often late for school.
没人知道他为什么上学总迟到。