定语从句的特殊规则及练习
高中定语从句讲解与练习（附答案）
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。
定语从句的规律及练习
疑难探究
1.注意定语从句中谓语动词的单复数：
Li Hua is one of the girls who _______never are late for school.
5.先行词是the way
in which/that/ /
6.先行词中含有the same/such时， as
7.定语从句只用that 的情况。 1.先行词前有最高级，序数词,every, no, any, only, very, right时， 2.先行词中有 all, few, little, much, none, some, something, anything, nothing 3.先行词中即有人又有物时 4.主句以who/which 引导的特殊问句时 8.当定语从句主谓宾都全，先行词是地点 where=in which 先行词是时间 when=on which 先行词是原因 why=for which
A where B. who C. which D. in which 11.A child ____parents are dead is called orphan. D A. which B. his C. who D. whose 12.Can you tell me the name of the factory___you C visited last week? A. what B. in which C. / D. where
12.非限定性定语从句中as 和 which 的区别
13.非限定性定语从句插入语的位置 which I think
高中英语定语从句讲解及练习较全面
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。
(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。
定语从句讲解及练习
定语从句1.定语从句：定语从句是由关系代词或关系副词引导的从句，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。
2.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。
关系代词有that, which, who, whom, whose, as等；关系副词有where, when, why等。
关系词常有 3 个作用： 1 ，引导定语从句。
2 ，代替先行词。
3，在定语从句中担当一个成分。
注：关系代词有主语.宾语之分。
一般whom 作为宾语。
4.定语：定语用来限定、修饰名词或代词的，是对名词或代词起修饰、限定作用的词、短语或句子，汉语中常用 , ⋯⋯的 ?表示。
主要由形容词担任。
此外，名词，代词，数词，分词，副词，不定式以及介词短语也可以来担任，也可以由一个句子来担任．单词作定语时通常放在它所修饰的词之前，作前置定语。
短语和从句作定语时则放在所修饰的词之后，作后置定语。
（一）关系代词（在句中作主语、宾语或定语）1. that 既可代表事物也可代表人，which 代表事物；它们在从句中作主语或宾语，that 在从句中作宾语时常可省略关系词，which 在从句中作宾语也可以省略。
[eg ：this is the book（which）you want。
]而且，如果which在从句中作“不及物动词＋介词”的介词的宾语，注意介词不要丢掉，而且介词总是放在关系代词which 的前边，但有的则放在它原来的位置2. which作宾语时，根据先行词与定语从句之间的语义关系，先行词与which 之间的介词不能丢3. 代表物时多用which ，但在带有下列词的句子中用that 而不用which ，这些词包括当先行词是anything, everything, nothing , none等不定代词时，或者是由every, any, all, some, no, little, few, much等修饰时等，这时的that 常被省略还有先行词前有序数词或形容词最高级修饰时,或先行词就是序数词或最高级时.以及先行词中既有人又有物时 .还有句中前面有which 时 ,都只能用that4. who 和 whom 引导的从句用来修饰人，分别作从句中的主语和宾语，whom 作宾语时，要注意它可以作动词的宾语也可以作介词的宾语5. whose 是关系代词，修饰名词作定语，相当于所修饰成分的前置所有格.它引导的从句可以修饰人和物, 当它引导的从句修饰物体时, 可以与of which调换,表达的意思一样。
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”。
定语从句讲解及练习
定语从句一定语从句（Attributive Clauses）由关系代词或关系副词引导的从句，其作用是作定语修饰主句的某个名词性成分，被修饰的名词，词组或代词即先行词。
定语从句一般紧跟在它所修饰的先行词后面，由关系词（关系代词或关系副词）引出。
关系代词有that, which, who, whom, whose, as等；关系副词有where, when, why等。
关系词常有3个作用：①引导定语从句。
②代替先行词。
③在定语从句中担当一个成分。
二关系代词引导的定语从句举例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(主格，在定语从句中做主语), whom(宾格，做宾语)，两者“代替的是人”。
(1) Is he the man who wants to see you? 他就是想见你的人吗？（who在从句中作主语）(2) He is the man (whom) I saw yesterday. 他就是我昨天见的那个人。
（whom在从句中作宾语，可省略）2.whose是所有格，用来指人或物，(只用作定语, 若指物，它还可以同of which互换）(1) 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。
(2) Please pass me the book whose (of which) cover is green.请递给我那本绿皮的书。
3.which指物，在定语从句中做主语或宾语。
作宾语时刻省略。
(1) Tom lost his favorite book, which made him very upset.汤姆丢了他最喜欢的书，这让他很不开心。
在非限制性定语从句中，which可指代前面讲到的整件事。
定语从句最细致讲解，附练习题（值得收藏）
定语从句最细致讲解，附练习题（值得收藏）定语从句（安徽中考不考，但平时月考会考到）（一）1.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。
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：引导定语从句的连词叫关系词。
如that、which、who、whom、whose、where、when等。
4.由that、which、who、whom、whose引导的定语从句。
that指人也指物which指物who指人whom指人，做宾语whose指人或物，做定语二、定语从句（二）1.先行词是物时，一般情况既可用that也可用which.但下列情况下，只能用that不用which。
1).当先行词为指物的不定代词，如all、everything、something、anything、nothing、none、the one等时，只能用that。
There is nothing ______ I can do for you .2).当先行词被the only、the very 、the last、all、no、little等词修饰时，只能用that。
This is the very book ______ I’m looking for .3).先行词被序数词修饰时，只能用that 。
This is the first nextbook ______ I studied in the middle school .4).先行词为最高级或被最高级修饰时，只能用that。
This is the most beautiful mountain ______ I have ever seen .=I have _____ seen _____ a beautiful mountian .5).先行词既有人也有物时，只能that 。
He told us many interesting things and persons _______ we had .2.先行词是物时，一般情况既可用that也可用which.但下列情况下，只能用which不用that。
定语从句讲解及练习
定语从句讲解及练习定语从句讲解和练习一、概念: He is the boy who often goes to school late.先行词关系词定语从句二、原则：a.定语从句必须紧紧地跟在先行词后面，限制修饰先行词。
b.定语从句必须用关系词来引导。
c.关系词在定语从句中作一个句子成分.三、扩大. She is the old woman whom I saw this morning.Mary is the girl whose parents work in Japan.Is this the key which you are looking for?October 1, 1949 is the day when New China was founded.This is the house where the great man was born.I don’t know t he reason why she looks unhap py today.四、下列定语从句只能用that来引导：1.先行词为形容词最高级所修饰This is the longest bridge that I have ever seen.2.先行词为序数词所修饰I happened to be the thousandth guest that visited the great hotel.This is the first composition that he has ever written in English.3.先行词既包括人又包括物They talked of things and persons that happened in the school.He talked about the teachers and schools that he had visited.4.主句是who或which开头的特殊疑问句中的定语从句Who is the man that came this morning?Which is the bag that you lost?5.先行词为the only, the very, the last, the same所修饰的定语从句He is the very person that the police are looking for.This is the only thing that I can remember.6.先行词是everything, nothing, something, all, little, much,everybody等不定代词Tell us everything that you know, please.Is there anything that you don’t understand?7.先行词被all, every, no, some, any, little, much修饰时All that glitters is not gold.I’ve read all the books that you gave me.五、“介词+ 关系词”及关系副词when, where, why1). The box is full of bottles. He is standing on the box.----> The box on which he is standing is full of bottles.The box where he is standing is full of bottles.2). This is the train. We work on the train.---->This is the train on which we work.This is the train where we work.3). I know the reason. She did it for the reason.---->I know the reason for which she did it.I know the reason why she did it.4). The man is our school master. You shook hands with the man justnow.----> The man with whom you shook hands is our schoolmaster. 5). The pen is made in Shanghai. She is writing with the pen.----> The pen with which she is writing is made in Shanghai.不能拆开的词组：look for / look after / catch hold of /take care of / put on / take off…….六、非限制性定语从句只对先行词起补充，说明的作用，常用逗号分开。
英语定语从句讲解及练习
英语定语从句讲解及练习一、什么是定语从句定语从句是英语中一种常见的复合句结构，用来修饰名词或代词。
它通常由一个关系词引导，用来限定或描述先行词的属性、特征或状态。
定语从句的引导词有：who, whom, whose, which, that等。
二、定语从句的结构定语从句一般由三部分组成：1. 关系词：引导定语从句的词，如who, which等。
2. 先行词：定语从句所修饰的名词或代词。
3. 从句：包含主语和谓语，并与先行词之间存在关系的句子。
定语从句的位置可以是先行词之前或之后，具体位置取决于引导词的属性。
下面是一些定语从句的例子：- The man who is wearing a blue hat is my brother.who is wearing a blue hat is my brother.- The book which I bought yesterday is very interesting.which I bought yesterday is very interesting.- This is the house that Jack built.that Jack built.三、练请根据所给情景，完整地填入合适的定语从句。
1. The girl whose father is a doctor studies medicine at university.whose father is a doctor studies medicine at university.2. I have a friend who lives in London.who lives in London.3. This is the house that was built in the 18th century.that was built in the 18th century.4. The car which was stolen has been found by the police.which was stolen has been found by the police.5. The student whom I met yesterday is very friendly.whom I met yesterday is very friendly.四、小结英语定语从句是一种常见的句子结构，用于修饰名词或代词。
（完整版）定语从句全面详细讲解附练习题加答案
（完整版）定语从句全面详细讲解附练习题加答案定语从句详细讲解（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等；关系副词有when, where, why等。
关系词通常有下列三个作用：A、引导定语从句；B、代替先行词；C、在定语从句中担当一个成分。
例如：The man who is shaking hands with my father is a policeman. 该句中，who is shaking hands with my father 是定语从句，修饰先行词the man，“who”是引导定语从句的关系词，代替先行词the man，在定语从句中作主语。
（二）关系代词引导的定语从句1．who 指人，在定语从句中作主语。
The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。
Those who want to go to the museum must be at the school gate at 7 tomorrow morning. 想去博物馆的人必须在明晨7点到大门口集合。
Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。
That is the teacher who teaches us physics. 那就是教我们物理的老师。
2．whom 指人，在定语从句中做宾语，常可省略。
Mr Liu is the person ( whom ) you talked about on the bus. 刘先生就是你们在公共汽车上谈论的那个人。
英语定语从句讲解及练习
英语定语从句讲解及练习1. 什么是定语从句定语从句是英语中一种常用的修饰成分，用于修饰名词或代词，在句中起定语的作用。
2. 定语从句的构成定语从句由关系词引导，关系词可以是关系代词或关系副词。
2.1 关系代词关系代词有：who, whom, whose, which, that。
- who 和 whom 用于修饰人。
- whose 用于修饰所有格。
- which 用于修饰物。
- that 同时可以修饰人和物。
2.2 关系副词关系副词有：when, where, why。
- when 用于修饰时间。
- where 用于修饰地点。
- why 用于修饰原因。
3. 怎么使用定语从句定语从句一般紧跟在被修饰的名词或代词后面，并且在从句中起修饰作用。
关系词所在的位置可以是主语、宾语或介词宾语的位置。
以下是一些例句来说明如何使用定语从句：1. The person who is sitting next to me is my best friend.（坐在我旁边的那个人是我最好的朋友。
）（你知道她为什么没来的原因吗？）3. This is the book which I bought yesterday.（这是我昨天买的书。
）练题：1. Can you lend me the pen ___________ doesn't have ink anymore? (which / who)2. The girl ___________ is standing over there is my sister. (who / what)3. I have a dog ___________ barks all night. (which / whose)请在下面填写正确答案：1. which2. who3. that---> 注意：以上答案仅供参考，实际情况应根据具体语境来确定。
(完整版)定语从句归纳及专项练习题
定语从句语法归纳及练习一、语法知识归纳一、基本概念（一）定语从句在复合句中作定语，修饰名词或代词的从句叫定语从句。
（二）先行词被定语从句所修饰的名词或代词。
一般情况下，定语从句紧跟先行词。
但也有因各种原因定语从句与先行词被分割的现象。
（三）关系代词和关系副词定语从句的引导词。
与先行词关系密切，因此紧跟先行词，并在定语从句中充当一个成分。
关系代词有：who, whom, which, that和whose, 另外，as也可充当关系代词。
关系代词在定语从句中充当主语、宾语、表语和定语。
关系副词有：when, where和why。
在定语从句中充当状语。
二、关系代词的用法（一）基本用法根据先行词的不同，和在从句中所充当的成分不同，选用不同的关系代词。
例如：（注意关系代词在定语从句中所充当的成分）①Do you know the professor who/that will give us a speech next week? （作主语）②I read a report about his new novel that/ which will soon be published. （作主语）③The plan that/which they argued about was settled at last. （作宾语）④This is the new secretary (who/whom/that) I would like to introduce to you. （作宾语）⑤The soldier whose legs were badly wounded was operated on without delay. （作定语）注意：关系代词在定语从句中充当宾语时可以省略，充当主语时则不能。
（见上例③④）（二）关系代词that代替which的一些情况which, that 在代替物时，一般可以通用。
定语从句讲解及巩固练习(有答案)
定语从句讲解及巩固练习一、定语从句的概念关系词（引导定语从句）↑1.People who have the highest EQ are the most successful↓先行词(被修饰词)二、定语从句的分类1. 限制性定语从句: 与先行词关系密切, 如果没有定语从句, 主句不完整, 且与先行词之间无逗号。
2. 非限制性定语从句: 对先行词起补充说明作用, 如果删除, 主句意义仍然完整, 与先行词之间有逗号。
eg: On the desk there are twenty books, three of which are mine.My aunt Alice ,whom I haven’t seen for years, is coming next month.★ that不能用于非限制性定语从句。
三、定语从句的关系词1. 指人的关系代词: who / whom / that1) 先行词在从句中作主语eg: A doctor is a person who / that looks after people’s health.2) 先行词在从句中作宾语eg: Mr White invited many friends to his party (who / whom / that) he respected much.3) 关系代词前有介词eg: Nancy is the right person on whom you can depend.小结：⑴ 指人的关系代词中，在从句中充当主语的是who和that,且在句中不可以省略。
⑴ 指人的关系代词中, 在从句中充当宾语的是who，that和whom，且可以省略。
⑴ 当关系代词前有介词时，指人只能用whom。
2. 指物的关系代词: which / that1) 先行词在从句中作主语eg: The river which / that runs through the city brings us lots of pleasure.2)先行词在从句中作宾语eg: The book (which / that) you just laid on the shelf is mine.3)关系代词前有介词eg: Here is the money with which I will buy a piano.3. 表示所有格：whose (既表示人的所有也表示物的所有)1) 表示人的所有eg: The girl whose father is a model worker is our monitor.2) 表示物的所有eg: I’d like a room whose window looks out over the sea.弄清as和which引导的非限制性定语从句指代整体时的区别★位置上的区别：as引导的非限制性定语从句的位置比较灵活，可以放在主句前，也可以放在主句后，还可插在主句的中间；而which引导的非限制性定语从句只能放在主句之后。
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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一、特殊规则：当先行词指物时宜用that，不用which的情况。
1. 先行词为不定代词everything, anything，nothing, few, little，much，all，the one, none 等。
e.g. Finally, the thief handed everything ______he had stolen.2 先行词为数词I am afraid I am not fit for the job, because it is one requires a lot of patience.3 先行词为同时指人和指物时，用that。
e.g. We talked about the things and persons ______ we saw then.4先行词被any few little all some no修饰时5 先行词被序数词及the only，the very，the last 修饰时e.g. He is the only person _______ I want to see now.It is the only book _______ I want to see now.6. 先行词被形容词最高级修饰时e.g. This is the best book ______ I’ve ever read. 7．若主句中有疑问代词who, which 为了避免重复, 关系代词不要再用who, which,用that. e.g. Who of them _____ stood there was the monitor?Practice:1This is the only book I got last year.2This is the largest animal Tom saw in the zoo.3Rose still remember the trees and teachers in the mother school.4All the desks are bought look wonderful.5Do you have any money is used to build the factory?6This is the second watch my father bought for me.4) 介词+关系代词引导的定语从句关系代词作介词宾语，不论是在限制性定语从句中，还是在非限制性定语从句中，当介词前置时，只能用whom 指人，which 指物；但如果介词后置，则不受这种限制，关系代词还可以省去，特别是在口语中。
1 Do you know the boy to whom she was talking? =Do you know the boy (that/who/whom) she was talking to?2.The pencil (which / that) he was writing with suddenly broke. =The pencil with which he was writing suddenly broke.（1）根据从句中动词或形容词的习惯搭配（2）根据先行词与介词的搭配习惯Practice one1. Do you like the book _________ she spent $10?2. Do you like the book ____ ____ she paid $10?3. Do you like the book __________ she learned a lot?4. Do you like the book ___________ she often talks?5. China has a lot of rivers, the second longest _______ is the Yellow River.6. The man ________ I spoke on the phone last night is very good at wrestling.7. This is the book _____ I am looking for.8. The sun gives us light and heat, which we can’t live.9. Are you interested in any of the songs you’ve listened?1 on which2 for which3 from which4 about which5 of which6 to whom7 which/ that /- 8without 9 to whichPractice two1.American women usually identify their best friend as someone _____ they can talk frequently. A. who B. as C. about which D. with whom2. The English play ______ my students acted at the New Year’s party was a great success.A. for whichB. at whichC. in whichD. on which3. There are altogether eleven books on the shelf, ______ five are mine.A. on whichB. in whichC. of whichD. from which4. The journey around the world took the old sailor nine months, _____ the sailing time was 226 days. A. of which B. during which C. from which D. for which DCCAPractice three:①He loves his parents deeply,__________ are very kind to him.他深深地爱着他的父母，他们俩待他都很好。
②In the basket there are quite many apples, ＿＿＿＿＿＿＿(=＿＿＿＿＿＿＿) have gone bad. 篮子里有好些苹果，有些已经坏了。
③There are forty students in our class in all,＿＿＿＿＿＿＿＿(=＿＿＿＿＿＿＿) are from big cities. 我们班总共有40个学生，大多数来自大城市。
④Up to now, he has written ten stories, ________________(=_________________) are about country life. 迄今为止，他写了10部小说,其中３部是关于农村生活的。
1 both of whom2 some of which / of which some3 most of whom / of whom most4 three of which / of which three5) whose=of whom/which1 I sat next to a girl whose name was Diane.=I sat next to a girl the name of whom was…=I sat next to a girl of whom the name was…2 He lives in the room whose door is green. =He lives in the room is green1 In the dark street , there wasn’t a single person _____ she could ask for help.A. thatB. whoC. from whomD. to whom2 After living in Pairs for fifty years he returned to the small town ____ he grew up as a child. A. which B. where C. that D when3 Oh the wall hung a picture _____color is blue.A. whoseB. of whichC. whichD. its4 The boss ____ department Ms King worked ten years ago looks down upon women.A. in whichB. in thatC. in whoseD. whose5 Recently I bought an ancient Chinese vase , _____ was very reasonable.A. which priceB. the price of whichC. its priceD. the price of whose6 The reason ____ he is late is that there wasa breakdown on the railway. A. why B. which C. Because D. thatthe door of which/ of which the door CBACBA二、关系副词When= at / in / on/…which Where= at / in / on/…which Why = for whichA:I’ll never forget the day which she said good-bye to me.B: Who can give me the reason which he hasn’t turned up yet?C: The sun gives us light and heat, which we can’t liveOn; for ; without先行词是“时间、地点、原因名词”时，并非总是用“when,where, why”来引导定语从句，应视？？该名词在定语从句中所充当的成分而定(还原法)---如果先行词代入从句中不需要加介词用关系代词，需要加介词用关系副词Practice one1 I still remember the day ______ I came here.2 I still remember the day _____ I came here.3.I still remember the day ____________ we spent together.4 I went to the place ________ we worked ten years ago.5 I went to the place ______ we worked ten years ago.6. I went to the place _________we visited ten years ago.7This is the reason ______________ he was late.8.This is the reason ____________ he explained to me.9. This is the reason____________ can explain his being late.10 The library ____ ____ students often study was on fire last night.11 The library ____ ____ you visited yesterday was built in 1990.12 I’ll never forget the time _____ ____ I spent on campus.13 I’ll never forget the time __________ was spent with you.14 I’ll never forget the day _________ we first met in the park.15 This is the reason __ ________I didn’t come here.16 The reason _____ _____ she gave was not true.17 It is the library___ __I borrowed the book.18 This is the library_ ___he designed.1-5 when; when; when; where; where; 6-10 which; why; which; which/that; where/ in which; 11-15 which; that; which/that; when; why 16-18 which/ that;; which/ that/-; which/ that/--Practice two1. The train _____she was traveling was late.A. whichB. whereC. on whichD. in that2. He has lost the key to the drawer _____ the papers are kept.A. thatB. in whichC. under whichD. which3. I want to know the reason _____he didn’t attend the meeting.A. thatB. whichC. for thatD. why4. Can you remember the afternoon ____I went to your home to borrow a diamond necklace of yours?A. whichB. thatC. XD. when5. The person ______we had worked on the farm wrote to us yesterday .A. to whomB. with whomC. whoD. that6. That’s the day __________ I’ll never forget.A. whenB. on whichC. thatD. on that7. I can remember the sitting room __________my mother and I used tosit in the evening.A. whatB. whichC. thatD. where8. When you read the book you’d better make a mark in the place _______ you have any questions.A. at whichB. at whereC. the place whereD. where9. That’s the reason_______ I wrote to him.A. for thatB. becauseC. whyD. that10. Hang zhou is the place ________ I visited last year.A. whereB. in which C why D. thatCBDDB CDDCD三、特殊的先行词1) the way:作为先行词在定语从句中做方式状语时，关系词可以用that/ in which或省略；作主语或宾语则用关系代词that/which1 The way he thought of to solve the problem is a clever one.A howB thatC in whichD in that2 I don’t like the way you laugh at her.A whichB thatC in thatD what3 What surprised me was not what he said but he said it.A the wayB in the way thatC in the wayD the way which4 Please tell me the way _______________ you did the job.BBA(Sth was not A but B所以空格中心词应为名词the way 后面再有定语从句修饰)；that/ in which/--2) situation/point/case/business1）若直接还原，用which 或that(宾语时还可省略) + 定从2）若充当定从的“状语”时（还原时接额外加介词），用where + 定从.The situation _______ _______the students designed for the play proved a success.The situation ______the students acted the play proved a success.1 I work in a business almost everyone is waiting for a great chance.A whenB thatC whereD which2 I can think of many cases students obviously knew a lot of English words and expressions but couldn’t write a good essay.A whyB thatC whereD which3 This is the point they stuck to.A whenB thatC whereD why4 I think we’ve got to the point a change is needed otherwise you will fail.A whenB thatC whereD which5 The media can often help solve problems and draw attention to situation help is needed.A whenB thatC whereD whichCCBCC限制性和非限制性定语从句：Eg:1 He seems not to have grasped what I meant, which greatly upsets me.2 His mother is an engineer, ____ makes him very proud.3 The weather turned out to be very good, ______ was more than we could expect.4 She was educated in Beijing University,______ she went on to have her advanced study abroad.(06陕西)A.after whichB.from whichC.from thatD.after thatWhich; which; Aas用来指代整个主句的内容，在句中可放在句首，句中，句末（要用逗号与主句隔开）。