语法知识—定语从句的知识点复习

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高三语法复习定语从句(学生版)

高三语法复习第3讲定语从句定语从句01.结构：先行词+关系代词/关系副词+从句先行词一般为名词，代词，人称代词或者上文中的一件事情关系代词：that,which ,who, whom, as ,whose关系副词：when ,where ,why02做题方法1)先找到从句，从句的未知大致有两种主谓/系宾/ 表（宾，表为现行词）关系代词/关系副词+从句I never forget the day when we first met in the campus.主（主语为先行词）+关系代词/关系副词+从句+ 谓/系宾/ 表The man that I talked to in the elevator is my professor in the college.2)分析从句的成分，通过句子成分分析从句中缺主语，宾语，标语，选择that，which，who, whom,as ,从句中缺定语，选择whose（先行词与从句中名词构成所属关系）从句中缺状语，选择when，where ,why.3)根据先行词，判断关系词的选择。

1.Happiness and success often come to those who are good at recognizing their own strengths.2.Do you know the boy(whom) we met at the gate?3.The exact year(which/that) Angela and her family spent together in China was 2008.4.She is the pop star(that/who/whom) I want to see very much.Among the many dangers(which/that) sailors have to face,probably the greatest of all is fog.5.The books on the desk,whose covers are shiny,are prizes for us.6.It was so difficult a problem as nobody in my class could work out.7.As the smallest child of his family,Alex is always longing for the time when he should be able to be independent.8.Students should involve themselves in community activities where/in which they can gain experience for growth.9.Tell me the reason why/for which you came late.03关系词的用法1）必须用关系代词that的情况1.当先行词是everything,anything,nothing,something,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等不定代词修饰时。

初一英语常用语法知识——定语从句知识点复习(含答案解析)

一、选择题1．—Remember, ________ you do your homework, ________ mistakes you will make.—OK, Mom.A．the more careful; the less B．the more carefully; the less C．the more carefully; the fewer C解析：C【解析】【分析】【详解】句意：——记住，做作业越仔细，犯的错误就越少。

——好的，妈妈。

考查比较级的用法。

the +比较级…, the+比较级…表示“越……，就越……”。

分析句子，空1应用副词carefully修饰动词do，其比较级为more carefully，排除A。

less是little的比较级，修饰不可数名词；fewer是few的比较级，修饰可数名词复数；空2后面mistakes是名词复数，故用fewer修饰。

故选C。

2．Jack sings _________ and he is a _________ singer(歌手).A．nice; good B．well; good C．good; well B解析：B【解析】【详解】句意：Jack唱歌很好，他是一名好歌手。

考查形容词和副词的用法。

nice好的，形容词；good好的，形容词；well好，副词。

根据题干可知，第一空需要用副词well修饰动词sings；第二空需要用形容词good修饰名词singer。

故选B。

3．—How often does he watch TV?—He watches TV.A．hard ever B．ever C．never C解析：C【解析】【详解】句意：——他多长时间看一次电视？——他从来不看电视。

考查频度副词。

hardly ever几乎从不，很少，没有hard ever这个词组，排除；ever (用于否定句和疑问句，或与if连用的句子)在任何时候，从来，曾经，本句没有否定词，也不是疑问句或if连用的句子，排除；never从不，绝不；故选C。

高中英语语法：定语从句精华知识点复习

定语从句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。

一、关系词有关系代词和关系副词两种（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who, whom, whose, which, that，as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、表语或定语。

1．who指人，在定语从句中作主语。

What was the name of the man who lent you the money？借钱给你的那人叫什么名字？（定语从句修饰先行词the man）He who laughs last laughs best.谁笑到最后谁笑得最好。

（定语从句修饰先行词he）The chairman of the meeting, who spoke first, sat on my right.会议主席坐在我右边，他先发言。

（定语从句修饰先行词the chairman）2．whom指人，在定语从句中做宾语。

在口语或非正式文体中，whom可省略或可用who来代替，但在介词后面以及在非限制性定语从句中只能用whom。

There are some people (whom/who)we like and others (whom/who) we dislike.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people, others）The people whom I work with are all friendly.和我一起工作的人都很友好。

（定语从句修饰先行词the people,介词后）Mr Carter, whom I spoke to on the phone last night, is very interested in our plan.昨晚我在电话里和卡特先生交谈过，他对我们的计划很感兴趣。

高中语法复习：定语从句考点易错点归纳

语法复习：定语从句考点易错点归纳考点一：关系代词的用法1.限制性定语从句和非限制性定语从句的区别：1)The girl who/that is holding a pink umbrella is Jim’s sister.2)I like the novel Gone with the Wind very much, which is popular with readers all over the world.①形式上：非限制性定语从句和主句之间用逗号隔开，不能用that引导。

②作用上：限制性定语从句与主句关系密切，对先行词起修饰限制作用，如果去掉从句，主句意义不完整，甚至不合逻辑。

非限制性定语从句与主句关系不密切，对主句起补充说明作用，去掉从句，意思仍然完整。

2.先行词+who/whom引导的定语从句：1)Most students like the teachers _________ can understand them.2)The professor ____________________they want to visit is president of the university.3)Anyone __________laughs last laughs best.4)Do you know the woman with ____________ my manager talked just now?①who在定语从句中作什么成分？②whom在定语从句中作什么成分？③who/whom什么时候可以省略？④什么时候只能用whom⑤先行词为指人的one, ones, anyone, those 时，关系代词常用who。

3.先行词+whose引导的定语从句：1)The prize will go to the writer whose story shows the most imagination.2)The school shop, whose customers are mainly students , is closed for the holiday.①whose :“…的”，其后紧跟______词，在定语从句中作________。

初中英语定语从句知识点复习巩固

初中英语定语从句知识点复习巩固定语从句指的是用来修饰名词或代词的从句，常用来对句中的人或物进行补充说明和限定。

以下是初中英语定语从句的知识点复习和巩固：1. 引导词：关系代词和关系副词是引导定语从句的主要词汇。

关系代词有who, whom, whose, which, that等；关系副词有where, when, why等。

2.关系代词的用法：- who和whom用来修饰人，who用于主语或宾语位置，whom只用于宾语位置。

- whose用于修饰人或物，表示所属关系，相当于"的"。

- which用来修饰物，也可用于修饰整个句子。

- that既可修饰人又可修饰物，用法更灵活。

3.关系副词的用法：- where用来修饰地点，在定语从句中作地点状语。

- when用来修饰时间，在定语从句中作时间状语。

- why用来修饰原因，在定语从句中作原因状语。

4.定语从句的位置：定语从句通常位于被修饰的名词之后。

5.定语从句的引导词可以省略：-当关系代词在定语从句中作宾语时，可以省略。

-当关系代词在定语从句中作主语时，不能省略。

-当关系副词在定语从句中作状语时，可以省略。

6.定语从句的谓语动词的形式：定语从句中的谓语动词的形式要根据先行词的意义和时间状况来决定。

7.注意在定语从句中注意将关系代词或关系副词放在合适的位置，以避免造成歧义。

例句：- The girl who is standing over there is my sister.（关系代词who修饰人）- The book, which is on the table, is mine.（关系代词which 修饰物）- The school where I study is very big.（关系副词where修饰地点）。

定语从句知识点归纳讲解讲义-2024届高考英语二轮复习

定语从句知识点归纳讲解一、定语从句以及相关术语★定义：定语从句是用来修饰某一名词或代词的从句。

★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。

★分类：定语从句分为限制性定语从句和非限制性定语从句。

二、定语从句的关系词(引导词)用法（一）关系代词：who、whom、which、that、whose、as关系代词先行词在从句中充当的成分who人主语、宾语、表语whom人宾语whose人/物定语which物主语、宾语that人/物主语、宾语、表语as人/物主语、宾语、表语语等。

as和which引导非限制性定语从句中都能指代整句内容，which译为“这”，as 译为“正如”。

但定语从句位于句首时只能用as。

As we all know,…/As is known to all,…（正如大家所知道....）（二）关系副词：where, when, why关系副词先行词在从句中充当的成分when表示时间的名词时间状语where表示地点的名词地点状语why表示原因的名词(reason)原因状语的地点,其后常由where引导。

▲The reason why...is that... 。

的原因是。

三、非限制性定语从句非限定性定语从句，从句式上看，有逗号隔开。

它既可以修饰先行词，也可修饰整个句子。

它对其先行词没有限定、修饰的作用，只起补充、说明的作用。

1.非限制性定语从句通常不能用that2. 非限制性定语从句不能用why引导，要用for which代替why。

例如：I had told them the reason，for which I didn’t attend the meeting.3. 非限制性定语从句置于句首时，不能用which引导。

定语从句知识点详解(初中英语专项复习) (2)

定语从句知识点详解（初中英语专项复习）1.引导定语从句的关系代词（1)who,whom用来指人，who在从句中作主语、宾语；whom在从句中作宾语。

Success will belong to those who never say "impossible".成功永远属于那些从不说“不可能”的人。

（2)which用来指物，在从句中可作主语、宾语，作宾语时可省略。

－What shall we do next?我们下一步应该做什么？－Take the advice which is given by Dr. Bloch.采纳布洛赫博士给的建议。

（3)that既可指人又可指物，在从句中可作主语、宾语。

I like the movies that are about Chinese history.我喜欢那些关于中国历史的电影。

（4)whose用来指人或物，只用作定语。

Chaplin was a great actor whose name is well-known all over the world.卓别林是一位闻名于世的伟大的演员。

2.引导定语从句的关系副词（1)when代替时间，where代替地点，相当于“介词＋which”，因此常交替使用。

I'll never forget the day when/on which I won the prize.我永远不会忘记我获奖的那天。

This is the city where/in which I have worked for 20 years.这就是我工作了20年的城市。

（2)why在从句中作原因状语。

We don't know the reason why he didn't come yesterday.我们不知道他昨天没来的原因。

3.定语从句只用that不用which 引导的情况（1)先行词是指物的不定代词，如all,little,much,everything,anything,nothing等，或先行词被不定代词修饰时。

定语从句知识点归纳

定语从句复习一、语法知识归纳定语从句( Attributive Clause) 句子作定语叫做定语从句。

定语从句放在先行词之后。

Ⅰ定语从句的引导词：关系代词和关系副词。

1. 关系代词(Relative pronoun)Do you still remember the chicken farm (that) we visited three months ago?I live in the house whose window faces the street. (＝I live in the house the window of which faces the street.)2. 关系副词We are living in an age when many things are done on computer.Ⅱ定语从句的分类：限制性定语从句和非限制性定语从句。

限制性定语从句（一）限制性定语从句的基本特征：限制性定语从句对被修饰的先行词有限定制约作用，使该词的含义更具体，更明确。

限制性定语从句不能被省略，否则句意就不完整。

从句与先行词之间没有逗号。

He has two sons who work in the same company. (Perhaps he has more than two sons.)（二）限制性定语从句中关系代词的用法1. that, which当先行词指物，并且关系代词在定语从句中充当主语或宾语时，用which/that引导定语从句。

在限制性定语从句中有些情况下只能用关系代词that，不用which。

(1) 当先行词是不定代词all, much, little, something, everything, anything, nothing, none, the one时。

You should hand in all that you have.(2) 当先行词前面被the only, the very, any, few, little, no, all等词修饰时。

专题01定语从句十大考点归纳(清单)-高考英语一轮复习知识清单(全国通用)

专题01 定语从句十大考点（解析版）讲义目录定语从句高考考点细目表P1 考点清单一、关系代词that和which典型用法对比P2 考点清单二、关系代词whose, who, whom典型用法归纳P4 考点清单三、关系副词where典型用法归纳P5 考点清单四、关系副词when典型用法归纳P5 考点清单五、关系副词why 典型用法归纳P6 考点清单六、如何区分先行词作状语还是宾语P6 考点清单七、关系代词as典型用法归纳P7 考点清单八、定语从句“介词+关系代词”结构P8 考点清单九、定语从句中的主谓一致典型用法P9 考点清单十、分割型定语从句及强调句型、名词性从句变式考查P9 分类训练（一）高考真题P10 分类训练（二）模拟试题P11 分类训练（三）单句改错P12 分类训练（四）句式升级（书面表达）P12 分类训练（五）语篇运用（外刊原创）P13 （一）二十四节气之夏至来历及风俗P13（二）英雄猫及时施救心脏病主人P15近年高考真题定语从句考点细目表考点清单一、关系代词that和which典型用法对比要点精讲1：I don’t like the way that/in which you speak to your mum. 我不喜欢你对妈妈说话的方式。

（the way在定语从句充当方式状语）【即时训练】用关系代词that或which填空。

1. I don’t like the way _______you speak to her.2. He is the only man __________ I can find for the work.3. He is no longer the man _________he was five years ago.4. The first English novel __________ I read was Gone With Wind.5. This is one of the most exciting football games _______ I have ever seen.6. John told his parents about the cities and the people _________ he had visited.7.（2014全国I卷）Maybe you leave a habit ________is driving your family crazy.8.（2015全国I卷）I’d skipped nearby Guilin, a dream place for tourists seeking the limestone mountain tops and dark waters of the Li River _________are pictured by artists in so many Chinese paintings.9. (2018全国II卷)The Chinese Ministry of Agriculture finds that between 2005—when the government started a soil-testing program ___ ___ gives specific fertilizer recommendations to farmers---and 2011, fertilizer use dropped by 7.7 million tons.10.（2020全国III卷）Understanding her good intentions, I eat all the food what is provided by Mom with appreciation. （短文改错）【答案与解析】1. that。

高中英语语法复习——定语从句(共45张ppt)

2、先行词：被定语从句修饰的名词或者代词叫做先行词。定语从句通常置于它所修饰的成分之后。
eg: The boy who is playing basketball is my younger brother.
3、关系词：引导定语从句的关联词就叫关系词。
A. 把从句和主句中被修饰的先行词连接在一起．
2. I think the day will finally come______ air pollution can be put under control. A. that B. which C. when D. as
3. This is the store______ we visited the famous shop assistant. A. where B. there C. that D. which
结构分析：系词所指代的先行词在句中作 know的宾语。
4. I don’t like the way _____ you speak to her. A. / B. that C. in which D. all A, B and C
特别注意!（5）
在实践中会遇到很多形似定语从句的句子，要注意定语从句与其它从句的结构上的细微差别, 能够正确区分使用它们.
couldn’t be found.
A. that
B.where C. in which D. in that
The places couldn’t be found.可知关系词所指代的先行词在句中作主语。
结构分析：
3. This is the reason ______ he has always been eager to know for these years. A. which B. why C. for which D. because He has always been eager to know the reason for these years.可知关

高考英语定语从句语法专项学习复习课件

He who does not reach the Great Wall is not a true man. Those who want to go, please sign their names here.
2> 句中有两个定语从句，一个用了that, 为避免重复或引起歧义
The man that spoke at the meeting is our headmaster who has just come from Shanghai.
例 5) The girl ____w_h_o_/_th_a_t_ is sewing a dress studies in a
句 vocational school
展 6) What do you think of the coat __w_h_i_c_h_/t_h_a_the made?
示 7) These are the wires with __w_h_i_c_h_ different machines are
宾语 Who(m)/that That/which
that
定语
whose Whose/of which
1) This is a truck _w_h__ic_h_/_t_h_a_t_ is made in China.
定 2) I like the book _w_h__ic_h__/t_h_a_t_ you bought yesterday.
添加文字饰的词叫先行词。定语从句通常放在被修饰的词(即先行词)之后。定
语从句由关系词(关系代词、关系添副加词文)字引导。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.
关系代词的基本用法
指代对象

语法复习：定语从句

语法复习：定语从句
语法复习：定语从句
1.简单句（SimpleSentence)
2.并列句（CompoundSentence)
3.复合句（ComplexSentence)
(1)简单句的五大基本句型：
主语+连系动词+表语
主语＋及物动词＋宾语
主语＋不及物动词＋状语
主语＋及物动词＋间宾＋直宾
主语＋及物动词＋宾语＋宾补
（2）并列句：由两个或两个以上等立而又相互独立的简单句构成，两个简单句由等立连词连在一起。

其结构是：简单句+等立连词+简单句
eg:HehasstudiedEnglishforonlyoneyear,buthecanreadandwrit enow.
Keeponandyouwillmakeprogress.
（3）复合句：由一个主句或几个从句构成的.句子。

从句只用作句子的一个成份，不能独立。

根据从句在句中的作用，可分为名词性从句、定语从句和状语从句三类。

高考英语语法知识点专题复习—定语从句

高考英语语法知识点专题复习—定语从句定语从句---基础篇一、定语从句（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、as、where、when、why等。

4.由that、which、who、whom、whose引导的定语从句。

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 textbook ______ 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。

语法知识—定语从句的知识点总复习附解析

一、选择题1．一What kind of musician does Carmen like?一She likes musicians __________play different kinds of music.A．which B．who C．whom2．—Do you know the man is talking with our teacher?—Oh, he is Tony’s father.A．which B．who C．whose D．what3．Shirley is the girl ______ taught me how to use Wechat(微信).A．whom B．which C．who4．The painting by Picasso ________ is about people’s love for life is shown in the museum. A．who B．which C．what5．-Have you found the information about the famous people ______ you can use for the report? -Not yet. I’ll search some on the Internet.A．who B．what C．whom D．which6．This is the best movie_________ I have ever seen.A．that B．it C．which D．what7．Running man is a very relaxing TV program_______is hot among the young people.A．what B．which C．who D．whom8．---Have you found the information you can use for your report? ---Yes.A．who B．where C．what D．which9．The four tools _________ people use for Chinese handwriting are called“Four Treasures of Study”.A．that B．who C．what D．whom10．The movie ____ I have seen twice is The Wandering Earth.A．who B．that C．where D．when11．The foreigner teaches English in our school is from England.A．what B．which C．who12．Do you know the girl_______ is drawing a picture?A．when B．whose C．which D．who13．I’ll tell you everything __________ I know.A．which B．who C．that D．what14．My grandparents like stories __________ have happy endings.A．they B．who C．which D．/15．Do you like the music that you relaxed?A．make B．making C．makes16．—Do you know the girl is talking with our teacher?—Oh, she is my sister.A．which B．what C．whose D．who17．The boy _______won the first prize is called Joy.A．when B．whom C．which D．who18．—Do you like watching movies?—Yes. I prefer movies ________give me something to think about.A．that B．what C．when D．who 19．—Have you found the details of Yuan Longping ________ you can use for your report?—He is so famous that I’ve easily got plenty on the Internet.A．where B．which C．what D．who20．Rosa likes music ______ is quiet and gentle.A．when B．that C．where D．who21．The film brought the hours back to me ________ I was taken good care of in that far-away village.A．which B．who C．when D．where 22．—This is the reason ________he gave for his absence from school.—It is the least believable excuse ________I have ever heard.A．that; that B．why; / C．why; which D．for which; that 23．—Have you finished the book ______________you borrowed from the library?A．which B．where C．what D．whose24．—Do you know the boy ________ is talking to Mr. Smith?—Yes, he’s my brother.A．what B．which C．whose D．who25．Lots of people like Tale of Yanxi Palace, the most popular TV play________is based upon an online novel.A．what B．who C．which D．that【参考答案】***试卷处理标记，请不要删除一、选择题1．B解析：B【解析】【详解】句意：——卡门喜欢什么样的音乐家？——她喜欢演奏不同种类音乐的音乐家。

定语从句知识点详解(初中英语专项复习) (10)

定语从句知识点详解（初中英语专项复习）1. 根据定义定特点在复合句中, 修饰某一名词或代词的从句叫作定语从句。

两个句子之间通过关系代词(that, which, who, whom, whose) 或关系副词(when, where, why)连接起来。

定语从句前的那个被修饰的名词或代词叫作先行词。

如：Running Man is a very relaxing TV program which is popular among the young people. 主句：Running Man is a very relaxing TV program 从句：which is popular among the young people先行词：TV program 关系代词：which因此, 如果确定是考查定语从句, 我们就可以排除不是关系代词或关系副词的选项, 如：what。

2. 根据成分选连词在此过程中要掌握“三看”原则。

(1) 一看指人还是物先行词指人：that, who (曲靖：2016.39), whose, whom先行词指物：that (曲靖：2016.45), which, whose (2) 二看句中作何用① 当先行词是all, little, much, none, everything, anything, nothing等不定代词时(曲靖：2017.40)。

--- Tom told his mother all that had happened. 汤姆把发生的所有事情告诉了他的妈妈。

① 当先行词前面有the only, the very, the last等修饰时。

--- This is the only book that I can find. 这就是我能找到的唯一的一本书。

① 当序数词或形容词最高级修饰先行词时。

---The tallest player that plays football for our team is from Shanghai. 为我们足球队踢足球的那个最高的运动员来自上海。

06.定语从句-高考英语一轮复习语法知识

2.只用which不用that的情况 (1)关系代词前有介词时。 This is the reference book of which the teacher is speaking. (2)引导非限制性定语从句时。 Crusoe’s dog, which was very old, became ill and died.
考点2 “介词+关系代词”引导的定语从句【要点归纳】
在“介词+关系代词”结构中,关系代词若是表示人,就只能用whom;关系代词若是表示事物,就只能用which。 Where is the supermarket in which you bought the laptop last week? Do you know the lady with whom our manager is talking in the office? 【特别提示】
在正式的文体中,“介词+关系代词”引导的定语从句可缩写成“介词+关系代词+不定式”结构。 She had some money in the bank, with which she could help her mother.
【要点巩固】 ①(2024·韶关模拟) Then he took a break in an inn and ordered several dishes, among _w__h_ic_h__there was fried shrimp. ②(2023·浙江高考·1月卷) There’s never a stage at _w_h_i_c_h__the system knows what it’s talking about. ③(2023·新高考Ⅱ卷改编) In contrast to our increasingly networked lives in _w__h_ic_h__ the information we consume is monitored and tracked, a printed book still offers the chance of a wholly private, “off-line” activity.

语法专题定语从句和状语从句课件高三英语一轮复习

5. 关系副词
关系副词
用法
示例
先行词是reason,在从句中 Tell me the reason why/for which you were absent yesterday.
why 作原因状语(可与for which 告诉我你昨天缺席的原因。
互换)
即练即清3
1. The statues fill only one part of the emperor's huge tomb, which still has not been completely unearthed. (人教B1U2) 2. People in modern times can read the classic works that/which were written by Chinese in ancient times. (人教B1U5) 3. As the Chinese saying goes, “A kind-hearted person lives a long life.”(外研B3 U2) 4. After several months, Ryan had raised the $2,000, with which a well was built near a primary school in Uganda. (外研B3U2)
5. 关系副词
关系副词
用法
示例
when
先行词通常是表示时间的 There comes a time when/in which the old must give way to the
词语,在从句中作时间状语 new.新旧更替的时代已经到来。
(可与at/in/on/during which Autumn is the season when/in which trees shed their leaves.

定语从句必考知识点总结

定语从句必考知识点总结一、定语从句的构成定语从句是由关系词引导的从句，关系词有关系代词和关系副词两种。

关系代词包括：who, whom, whose, which, that；关系副词包括：when, where, why。

定语从句的构成主要有两种形式：一种是直接连接定语从句，另一种是间接连接定语从句。

1. 直接连接定语从句：直接连接定语从句的情况比较简单，通常是使用关系代词或关系副词来引导从句。

例句：This is the book that I want to read.这就是我想要读的书。

I don't know the reason why he is absent today.我不知道他今天缺席的原因是什么。

2. 间接连接定语从句：间接连接定语从句通常是通过介词+which/whom/whose来引导的。

例句：The girl with whom he is talking is my sister.他正在和那个女孩交谈的人是我妹妹。

The house in which I live is very beautiful.我住的房子非常漂亮。

二、关系代词的使用关系代词在定语从句中起到连接主句和从句的作用，同时在从句中充当名词的成分。

其中，who, whom, whose, which, that 是关系代词，对于不同的情况需要选择不同的关系代词。

1. who：指人，作主语。

例句：This is the girl who won the first prize in the competition.这就是那个在比赛中获得一等奖的女孩。

2. whom：指人，作宾语。

例句：The man whom you met yesterday is my brother.你昨天见到的那个人是我的兄弟。

3. whose：指人或物，表示所有关系。

例句：The man whose car was stolen is very upset.那个车被偷的人非常难过。