定语从句专项知识点总结汇总

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定语从句_语法知识归纳

定语从句语法知识归纳一、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。

一．关系代词引导的定语从句关系代词的用法（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。

如下表：关系词先行词从句成分例句备注关系who 人主语，宾语Do you know the man who istalking with your mother?whom,which和代词whom 人宾语Mr. Smith is the person with whomI am workingThe boy (whom) she loved died inthe war.that在从句中做宾语时，常可以省略，但介词提前时后面关系代词不能省略，也不可以用that whose 人，物定语I like those books whose topics areabout history.The boy whose father worksabroad is my classmate.that 人，物主语，宾语A plane is a machine that can fly.She is the pop star (that) I want tosee very much.which 物主语，宾语The book (which) I gave you wasworth $10.The picture which was about theaccident was terrible.as 人，物主语，宾语He is such a person as is respectedby all of us.This is the same pen as I lostyesterday.as做宾语一般不省略例如：（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。

初中定语从句知识梳理

初中定语从句知识梳理一、定语从句的概念定语从句是由一个句子充当另一个句子的定语，用来修饰名词或代词。

定语从句在句中充当形容词，起到限定或补充说明修饰作用。

二、定语从句的引导词常用的定语从句引导词有：关系代词和关系副词。

1.关系代词：that, who, whom, whose, which2.关系副词：where, when, why三、引导词的用法和区别1.关系代词的用法和区别：(1)that：1)作主语或宾语时，可以先行词是人也可以是物。

2)不能用于非限制性定语从句。

(2)who/whom：1)who作主语时，先行词必须是人。

2)whom作宾语时，先行词必须是人。

3)非限制性定语从句一般用who；宾语从句的引导词只能用whom。

(3)which：1)作主语或宾语时，先行词必须是物。

2)非限制性定语从句一般用which；宾语从句的引导词只能用which。

(4)whose：1)表示"……的"，用于人或物，用来修饰名词。

2)通常在定语从句中作用是轻微的。

2.关系副词的用法和区别：(1)where：在定语从句中修饰地点，相当于介词+ which。

(2)when：在定语从句中修饰时间，相当于介词+ which。

(3)why：在定语从句中修饰原因，相当于介词+ which。

四、定语从句的基本结构1.先行词+定语从句引导词+其他成分2.定语从句引导词+先行词+其他成分五、易错点以及注意事项1.区分定语从句和宾语从句：定语从句修饰名词或代词，而宾语从句作动词的宾语。

2.先行词的重复性：定语从句中一般不再重复先行词。

3.谓语动词的变化：定语从句中的谓语动词根据先行词的数和人称变化。

4.引导词的选择：根据先行词的不同特点，选择适当的引导词。

(完整版)定语从句知识点大全

(完整版)定语从句知识点大全什么是定语从句？定语从句是英语中常用的一种修饰句子成分的从句形式。

它通常用来修饰名词或代词，在句子中起定语的作用。

定语从句一般由关系代词或关系副词引导，并且与被修饰的名词或代词有一定的关系。

关系代词的用法关系代词用来代替先行词，并引导定语从句。

常用的关系代词有：- who: 指人，作主语- whom: 指人，作宾语- which: 指物，作主语或宾语- whose: 所有格，指人或物- that: 指人或物，作主语或宾语关系副词的用法关系副词用来引导定语从句，并表示地点、时间、原因等关系。

常用的关系副词有：- where: 表示地点- when: 表示时间- why: 表示原因定语从句的形式定语从句可以是限制性的，也可以是非限制性的。

限制性定语从句限制性定语从句是对先行词进行限定和修饰的从句，如果去掉，整个句子的意思就不完整或失去了关键信息。

限制性定语从句通常使用关系代词和关系副词引导，关系代词在从句中作主语或宾语。

非限制性定语从句非限制性定语从句是对先行词进行补充说明，它对整个句子的意思并不具有限制作用，就算去掉也不会影响主句的表达。

非限制性定语从句通常使用逗号将其和主句隔开，关系代词在从句中作主语或宾语。

定语从句的位置定语从句可以放在先行词之后，也可以放在先行词之前。

定语从句的例句- I have a friend who lives in New York.（非限制性定语从句）- The book that you borrowed is on the desk.（限制性定语从句）以上就是关于定语从句的一些基本知识点。

定语从句在英语语法中是一个重要的内容，掌握好定语从句的用法可以有效地提升我们的写作水平。

希望本文对您有所帮助！。

初中定语从句知识点总结

初中定语从句知识点总结一、定语从句的引导词1. that“that” 既可以用来指代人也可以用来指代事物，常用来引导定语从句，作主语或宾语。

例如：The book that I borrowed from the library is very interesting.2. which“which” 只能用来指代事物，常用来引导非限制性定语从句，作主语或宾语。

例如：Tom showed me his new computer, which runs very fast.3. who“who”用来指代人，在定语从句中作主语。

例如：The girl who is singing is my friend.4. whom“whom” 用来指代人，在定语从句中作宾语。

例如：I know the boy whom you met yesterday.5. whose“whose” 用来指示所属关系，常用来引导定语从句，修饰名词。

例如：He met a person whose car was broken down.6. when“when”引导的定语从句，修饰表示时间的名词。

例如：Do you remember the day whenwe first met?7. where“where”引导的定语从句，修饰表示地点的名词。

例如：I know the place where he used to live.8. why“why”引导的定语从句，修饰表示原因的名词。

例如：I don't understand the reason whyhe is so angry.二、定语从句的位置1. 定语从句通常位于被修饰的名词之后，用来对这个名词进行进一步的说明和解释。

例如：The girl who is sitting in the front is my sister.2. 当定语从句中有表示时间，地点，原因等关系的词时，可以用关系副词where、when、why来引导。

定语从句语法总结

定语从句语法总结定语从句语法总结定语从句语法总结一．几个基本概念1.定语从句的定义：用作定语的从句叫定语从句。

2.先行词：被定语从句所修饰的名词或代词。

3.定语从句的位置：紧跟先行词（名词或代词）之后。

4.引导词：引导定语从句的词（包括关系代词和关系副词）。

（1）关系代词：thatwhowhomwhichas（2）关系副词：whenwherewhy5.引导词的位置：位于定语从句之前（先行词之后）。

【as除外】6.引导词的功能（作用）：（1）连接先行词和定语从句。

（2）在定语从句中充当一定的成分（关系代词充当主语或宾语，关系副词充当状语）。

7.定语从句的类型：（1）限定性定语从句（主句和定语从句之间无逗号）。

①直接由引导词引导定语从句The man who you’re talking to is my friend.②由介词+关系代词（whomwhich）引导The man to whom you’re talking is my fr iend.I need a pen with which I can write a letter.=I need a piece of paper on which I can write a letter.介词的选用可根据从句中的相关词组确定，该介词通常可以放在关系代词之前，也可放在从句之尾。

例如：The man (whowhomthat)I talked about at the meeting is from Beijing University.=The man about whom I talked at the meeting is from Beijing University.The palace (whichthat)I often pay a visit to was built in the 17th century.=The palace to which I often pay a visit was built in the 17th century.（2）非限定性定语从句（主句和定语从句之间用逗号隔开）。

定语从句相关知识点总结

定语从句相关知识点总结一、定语从句的概念。

1. 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，定语从句一般放在先行词的后面。

- 例如：I like the book which/that is very interesting. 其中“book”是先行词，“which/that is very interesting”是定语从句，用来修饰“book”。

二、关系代词的用法。

1. that.- 既可以指人也可以指物，在从句中作主语或宾语。

- 当先行词是all, much, little, something, everything, anything, nothing, none等不定代词时，关系代词用that。

- 例如：All that can be done has been done.（先行词是“All”，关系代词“that”在从句中作主语）- 当先行词被序数词或形容词最高级修饰时，关系代词用that。

- 例如：This is the best film that I have ever seen.（先行词“film”被最高级“the best”修饰，关系代词“that”在从句中作宾语，可省略）- 当先行词被the only, the very, the same等修饰时，关系代词用that。

- 例如：This is the very book that I want.（先行词“book”被“the very”修饰，关系代词“that”在从句中作宾语）2. which.- 指物，在从句中作主语或宾语。

- 例如：The book which/that is on the desk is mine.（“which/that”在从句中作主语）；I like the book which/that you lent me.（“which/that”在从句中作宾语）- 在非限制性定语从句（从句与主句之间用逗号隔开）中，只能用which，不能用that。

定语从句小知识点总结

定语从句小知识点总结一、关系代词1. who/whom/whose：用来指人，who做主语，whom做宾语，whose做定语，也可指代事物。

2. which：用来指事物，既可以作主语又可以作宾语。

3. that：用来指人或事物，可以作主语也可以作宾语。

4. where: 用来指地点，在定语从句中作状语，表示地点。

5. when: 用来指时间，在定语从句中作状语，表示时间。

6. why: 用来指原因，在定语从句中作状语，表示原因。

以上是关系代词的主要用法，我们可以根据名词或代词的性质和引导定语从句的需要来选择相应的关系代词。

二、定语从句的引导词的省略1. 当定语从句的引导词在从句中作宾语时，可以省略。

例如：I have a friend (who/that) I like very much.2. 当定语从句的引导词指人时，可以省略。

例如：This is the man (whom/who/that) you wanted to see.3. 当定语从句的引导词在从句中作主语时，不可省略。

例如：I like the book which/that you recommended.三、定语从句的位置定语从句的位置通常紧跟在被修饰的名词或代词之后。

例如：The man who is speaking is my father.四、引导定语从句的介词在定语从句中，如果介词位于关系代词之后，其宾语必须是定语从句的第一个词。

例如：The pen with which you are writing was made in China.五、定语从句的关系代词与先行词的关系定语从句的关系代词指的是先行词，通过关系代词引导的定语从句与先行词构成了逻辑上的关系。

关系代词在定语从句中既起代词的作用，又充当引导词的作用，起连接作用。

六、定语从句的特殊结构1. “all, everything, something, nothing, none, anything”等不定代词和“the + 名词”的定语从句，其关系代词用“that”。

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。

定语从句知识点总结详细

定语从句知识点总结详细一、定语从句的概念定语从句是一种对名词起修饰或限制作用的从句，它通常由关系词引导，用来进一步说明先行词的情况、属性或特征。

在句子中充当形容词，对名词进行修饰。

二、定语从句的用法1. 修饰名词定语从句通常用来修饰名词，对名词进行进一步的解释或者描述。

例如：The book that you recommended is very interesting.（你推荐的那本书非常有趣。

）2. 限制名词定语从句还可以作为限制性定语从句，用来对名词进行限定。

例如：I want to buy the pen which is on the table.（我想买桌子上的那支笔。

）三、定语从句的结构定语从句通常由关系代词或者关系副词引导，加上从句。

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

从句的结构可以是主语从句、宾语从句、表语从句等。

1. 关系代词引导的定语从句关系代词引导的定语从句通常用来修饰人或物，其结构如下：that（指人或物）which（指物）who（指人）whom（指人）whose（表所有关系）2. 关系副词引导的定语从句关系副词引导的定语从句通常用来修饰时间、地点、原因等，其结构如下：when（指时间）where（指地点）why（指原因）四、定语从句的关键词1. thatthat通常用来指代人或物，可以用来引导限制性定语从句和非限制性定语从句，常用于口语和书面语中。

例如：The book that I bought yesterday is very interesting.（我昨天买的那本书非常有趣。

）2. whichwhich通常用来指代物，可以用来引导限制性定语从句和非限制性定语从句，常用于口语和书面语中。

例如：I like the dress which you are wearing.（我喜欢你穿的那条裙子。

定语从句结构知识点总结

定语从句结构知识点总结一、定语从句的引导词定语从句可以由关系代词和关系副词引导，其中关系代词包括who, whom, whose, which, that, 关系副词包括when, where, why。

下面分别对它们进行详细介绍。

1. 关系代词（1）whowho用来修饰表示人的名词或代词，在定语从句中作主语或宾语。

在口语和非正式文体中，who通常可以替换为that。

例句：The man who is sitting over there is my English teacher.（2）whomwhom用来修饰表示人的名词或代词，在定语从句中作宾语。

例句：The girl whom you met yesterday is my sister.（3）whosewhose用来修饰表示人或物的名词或代词，在定语从句中表示所属关系。

例句：This is the girl whose bag was stolen.（4）whichwhich用来修饰表示物的名词或代词，在定语从句中作主语或宾语。

在口语和非正式文体中，which通常可以替换为that。

例句：The book which you are reading is very interesting.（5）thatthat用来修饰表示人或物的名词或代词，在定语从句中作主语或宾语。

在口语和非正式文体中，that通常可以替换为which。

例句：This is the coat that I bought last week.2. 关系副词（1）whenwhen用来修饰表示时间的名词，在定语从句中表示时间。

例句：The day when we first met was a sunny day.（2）wherewhere用来修饰表示地点的名词，在定语从句中表示地点。

例句：This is the place where we used to play.（3）whywhy用来修饰表示原因的名词，在定语从句中表示原因。

总结定语从句知识点

总结定语从句知识点1. 定语从句的基本结构定语从句通常由关系代词（who, whom, whose, which, that）或关系副词（where, when, why）引导，与所修饰的名词或代词构成一个从句。

定语从句的基本结构为：关系代词/关系副词 + 谓语 + 其他成分。

例如：The book (which/that) I bought yesterday is very interesting.在这个句子中，定语从句是“which/that I bought yesterday”，它修饰的是名词“book”，其中关系代词“which/that”引导引导定语从句，而谓语是“bought”，其他成分是“yesterday”。

2. 关系代词的选择在选择关系代词时，需要根据其在定语从句中的成分以及其所修饰的名词的性质来决定。

通常情况下，关系代词的选择有以下几点：（1）指人的名词一般用关系代词 who/whom/whose，指物的名词一般用which/that。

（2）在非限制性定语从句中，只能使用关系代词who/whom/whose/which，而不能使用that。

（3）当关系代词在定语从句中作表语时，要根据所修饰的名词是人还是物，决定使用who/which或that。

例如：The woman who/that is standing over there is my English teacher.The book which/that I borrowed from the library is very interesting.3. 定语从句的位置定语从句通常放在被修饰的名词之后，形成一个完整的句子。

但在特定情况下，定语从句也可以放在被修饰的名词之前。

通常情况下，定语从句的位置有以下几点：（1）定语从句放在被修饰的名词之后时，一般不用逗号与主句分开，因为这种情况下定语从句与主句构成一个紧密结合的句子。

定语从句知识总结(最新9篇)

定语从句知识总结（最新9篇）英语的定语从句总结篇一一、关系代词引导的定语从句1、由who, whom, that，Whose引导的从句这些词代替的先行词是人的名词或代词，who作主语指人，whom作宾语指人，that既可作主语又可作宾语（作宾语可以省略），可以指人也可以指物。

Whose 用来指人或物，只用作定语。

（1) Is he the man who/that wants to see you? 他是那个想见你的男人吗？(who/that在从句中作主语）（2) 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）（3）The man whom you spoke to just now is our English teacher 你刚刚说话的那个男人是我们的英语老师（4）he man whose son is a doctor is our professor. 那个儿子是医生的男人是我们的教授。

2、由which, that引导的从句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，作宾语时可以省略，例如：（1) 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在从句中作主语）（2) The package (which / that) you are carrying is about to come unwrapped. 你拿那个包裹快要散开了。

(which / that在从句中作宾语）注意：代表物时多用which，但在下列情况中用that而不用which：a)先行词是anything, everything, nothing ，none等不定代词时；b)先行词由every, any, all, some, no, little, few, much等修饰时，这时的that常被省略；c)先行词前有序数词或被形容词最高级修饰时；d)先行词中既有人又有物时；e)整个句中前面已有which，who,that时；f)当先行词为物并作表语时；g)先行词为one时；h)先行词同时又被the only,the very,the same修饰时；二、关系副词引导的定语从句1、when指时间在定语从句中做时间状语也可做连接词用I still remember the day whenI first came to the school.2、where指地点在定语从句中做地点状语Shanghai is the city where I was born.3、why指原因在定语从句中做原因状语，用在reason 后面。

定语从句知识点详细总结

定语从句知识点详细总结一、定语从句的定义定语从句是由关系代词或关系副词引导的从句，它用来修饰名词或代词，限定其具体的内容或范围。

定语从句充当一个形容词的作用，对名词进行修饰、限定或补充说明。

二、定语从句的分类1. 关系代词引导的定语从句关系代词有：who, whom, whose, which, that。

2. 关系副词引导的定语从句关系副词有：when, where, why。

关系代词用来引导修饰人或物的定语从句，关系副词专门用来引导修饰时间、地点和原因等的定语从句。

三、定语从句的引导词的选择1. 指人时可用关系代词who, whom, whose, that引导；2. 指物时可用关系代词which, that引导；3. 指人或物的地点时可用关系副词where引导；4. 指人或物的时间时可用关系副词when引导；5. 指人或物的原因时可用关系副词why引导。

四、定语从句的位置定语从句通常紧跟在被修饰的名词或代词之后，作为一个整体来修饰它。

如：the man who is talking over there（正在那里说话的人）。

五、定语从句的用法1. 修饰名词或代词定语从句用来对名词或代词进行修饰，起到限定或补充说明的作用。

如：The book that you borrowed from me is very interesting（你从我这里借的那本书非常有趣）。

2. 表示所属关系定语从句还可以表示所属关系，用来说明名词或代词所属的人或物。

如：The man whose car is parked over there is my friend（停在那里的那辆车的主人是我的朋友）。

3. 表示时间、地点、原因定语从句还可以用来修饰表示时间、地点、原因等的名词或代词。

如：I still rememberthe day when we first met（我仍然记得我们第一次见面的那天）。

六、关系代词和关系副词在定语从句中的用法1. who, whom, whose, thatwho, whom, whose, that都可用来引导修饰人的定语从句，其中who常用作主语，whom常用作宾语，whose用来表达所属关系或修饰名词。

定语从句语法知识点总结

定语从句语法知识点总结定语从句是指修饰一个名词或代词的句子，用来进一步说明这个名词或代词的内容。

以下是定语从句的语法知识点总结：1.引导词：定语从句通常由关系代词或关系副词引导。

关系代词有：that, which, who, whom, whose, 以及关系副词：where, when, why。

2.关系代词的用法：(a) that: 作主语时，可修饰人和物。

如：The book that I borrowed from the library is very interesting.(b) which: 作主语时，只修饰物，不修饰人。

如：The car whichis parked outside is mine.(c) who/whom: 作主语时，修饰人。

如：The girl who is playing the piano is my sister. 作宾语时，who指代主语，whom指代宾语。

如：The man whom I met yesterday is a famous writer.(d) whose: 用于表示所属关系，修饰人和物。

如：The house whose roof was damaged by the storm needs to be repaired.3.关系副词的用法：(a) where: 修饰地点。

如：I still remember the city where I was born.(b) when: 修饰时间。

如：This is the day when we will havethe final exam.(c) why: 修饰原因。

如：I don't understand the reason why he quit his job.4.关系代词在从句中的成分：关系代词在定语从句中可以充当主语、宾语、介词的宾语或者表语。

如：The girl (who/whom/that) I met at the party is my cousin. （关系代词充当宾语）5.关系词的省略：当关系代词在定语从句中作宾语时，且在从句中不作其他成分时，可以将关系代词省略。

定语从句笔记整理

定语从句一、关系代词1. that既可指人又可指物,在从句中作主语宾语2.which 只指物,在从句中作主语或宾语.3.who/whom 只指人,who在从句中作主语或宾语,而whom只作宾语.4.whose是代词的所有格,既可代人也可代物Eg 1.The letter that/which I received was from my father.2.The doctor whom /who /that you are looking for is in the room.3.Do you know the man whose name is Wang Y u.4.The book whose cover is red is my English book.注：一、关系代词指物时只用that不用which的情况1.先行词为all, everything, nothing, anything , little , much 等不定代词时.Eg Tell me everything that you know2.先行词被very , both , the only , all , no , every , any , little , much , some修饰时. Eg This is the only book that I have.3.先行词被形容词最高级修饰时Eg This is the most beautiful city that I have visited.4.先行词被序数词修饰时Eg This is the last lesson that we have this term.5.先行词既包括人又包括物Eg They talked of things and persons that they remembered in the school.6.主句是以who或which开头的特殊疑问句时Eg Which is the coat that you like best?Who is the man that was talking to you?7. that 常用作表语Eg China is not the country that it used to be.He is not that man that he was.8.有两个定从，其中一个已用which另一个用that.Eg Edison build a factory which produced things that had never been seen before.二、适宜用which的情况1.在从句中作介词的宾语,当介词提前时,只用which,代词在句尾时两者皆可. Eg He found that which he had been looking forThis is the question that/which we have had so much discussion about.This is the question about which we’ve had so much discussion.The chair (which/that) she is sitting on is made of wood.The chair on which she issitting is made of wood.2.在非限定性定语从句中必用which不能用thatThey have invited me to visit their country, which is very kind of them.I said nothing,which made him angry.三、下列情况中多用whoEg One who has nothing to fear dares to tell the truth.Those who want to go to the Great Wall sign up here.Anyone who fails to finish the task should be criticized.There is an old man who wants to see you.The boy that you met last night is the group leader who studies veryhard.二、关系副词1、whereEg 1、This is the school. I used to teach at the school.This is the school where/at which I used to teach.2、What’s the name of the town? We stayed in the town last night.What’s the name of the town where / in which we stayed last night?3、This is the house where I was born.This is the house which/that I was born in.This is the house in which I was born.2、whenEg 1、Tell me the time. The train leaves at that time.Tell me the time when / at which the train leaves.2、July is coming soon. We can go home for a rest in July.July, when / in which we can go home for a rest, is coming soon.3、I’ll never forget the day. I reached the top of Mount Tai on that day.I’ll never forget the day when / on which I reached top of Mount Tai.4、Y ou will have some spare time. Y ou can learn French at home during this time.Y ou will have some spare time when / during which you can learn French at home.3、whyEg I don’t know the reason. He left here for the reason.I don’t know the reason why/ for which he left here.注: The reason why he was late was that her child was ill in hospital.The reason which she gave me was that her child was ill in hospital.4、由as, which 引导的非限定性定语从句，as和which可代整个主句。

定语从句知识点归纳总结

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做定语从句。

被定语从句修饰的名词或代词叫先行词，定语从句一般放在先行词的后面。

二、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。

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

1. 关系代词的用法that 既可以指人也可以指物，在定语从句中作主语、宾语或表语。

which 指物，在定语从句中作主语、宾语。

who 指人，在定语从句中作主语、宾语。

whom 指人，在定语从句中作宾语。

whose 既可以指人也可以指物，在定语从句中作定语。

2. 关系副词的用法when 指时间，在定语从句中作时间状语。

where 指地点，在定语从句中作地点状语。

why 指原因，在定语从句中作原因状语。

三、定语从句的分类1. 限制性定语从句限制性定语从句对先行词起限制、修饰的作用，关系紧密，一般不可缺少，否则主句的意思就不完整。

2. 非限制性定语从句非限制性定语从句对先行词起补充说明的作用，关系较松散，即使去掉，主句的意思仍然完整。

非限制性定语从句与主句之间通常用逗号隔开。

四、定语从句中关系词的选择1. 先行词是人时，关系词用 who/whom/that当先行词在从句中作主语时，用 who/that。

当先行词在从句中作宾语时，用 whom/who/that（在口语或非正式文体中常用 who 代替 whom）。

2. 先行词是物时，关系词用 which/that当先行词在从句中作主语或宾语时，用 which/that。

3. 先行词是人和物时，关系词用 that4. 先行词是时间名词时，关系词用 when当先行词在从句中作时间状语时，用 when。

5. 先行词是地点名词时，关系词用 where当先行词在从句中作地点状语时，用 where。

6. 先行词是 reason 时，关系词用 why当先行词在从句中作原因状语时，用 why。

定语从句知识总结（精选8篇）

定语从句知识总结（精选8篇）定语从句知识总结篇1一.定语从句及相关术语1.定语从句：修饰某一句中的名词或代词的从句称为定语从句，一般紧跟在它所修饰的先行词后面。

被修饰的词称为先行词。

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。

二.关系代词引导的定语从句1.who指人，在从句中做主语(1)The boys who are playing football are from Class One.(2)Yesterday I helped an old man who lost his way.2. whom指人，在定语从句中充当宾语，常可省略。

(1) Mr. Liu is the person (whom) you talked about on the bus.(2) Mr. Ling is just the boy whom I want to see.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。

(3) The man who/whom you met just now is my friend.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.(2) This is the pen (which) he bought yesterday.4. that指人时，相当于who或者whom;指物时，相当于which。

在宾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 yearrises 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 cover is yellow? (6)Do you like the book the color of which is yellow?三.介词+关系代词引导的定语从句1. 关系代词在定语从句中做介词宾语时，从句常由介词+关系代词引导(1)The school (that/which) he once studied in is very famous.(2)The school in which he once studied is very famous.(3)Tomorrow I will bring here a magazine (that/which) you asked for.(4)Tomorrow I will bring here a magazine for which you asked.(5)We’ll go to hear the famous singer (whom/that/who) we have often talk-ed about.(6) We’ll go to hear the famous singer about whom we have often talked.2.关系代词前的介词的选择* 由先行词的习惯搭配或根据先行词的需要。

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。

定语从句最全面的知识点整理

定语从句最全面的知识点整理定语从句是修饰一个名词或代词的从句，用于进一步说明或限定这个名词或代词的内容。

下面是定语从句的最全面的知识点整理：1.引导词：- 关系代词：who, whom, whose, which, that- 关系副词：where, when, why2.关系代词的用法：- who：指人作主语或宾语- whom：指人作宾语- whose：指人或物作定语，表示所属关系- which：指物作主语或宾语- that：指人或物作主语或宾语，可省略3.关系副词的用法：- where：指地点，在定语从句中作状语- when：指时间，在定语从句中作状语- why：指原因，在定语从句中作状语4.定语从句的结构：-先行词+关系代词/关系副词+句子-关系代词/关系副词在定语从句中担任特定成分5.定语从句的位置：-定语从句一般紧跟在先行词之后，形成一个整体6.先行词的选择：- 指人：who, whom, whose- 指物：which, whose- 指人或物：that7.定语从句的用法和功能：-限定性定语从句：对先行词进行具体的限制和说明，不可省略，不用逗号隔开-非限定性定语从句：对先行词进行额外的补充说明，可省略，用逗号隔开8.定语从句的语法注意事项：-先行词在定语从句中可作主语、宾语、表语或介词的宾语等- 在定语从句中，关系代词充当宾语时，只能用 whom；关系代词充当主语时，只能用 who 或 that-当关系代词作介词的宾语时9.定语从句的省略：-当关系代词在定语从句中作宾语且有前置介词时，可省略-当先行词为所有格时，关系代词可省略10.定语从句的比较级和最高级：-定语从句中修饰的先行词是比较级或最高级时，关系代词与其相应词的用法相同，也可省略。

高中定语从句知识点汇总

定语从句知识点汇总一、先行词二、关系词1.关系代词：2.关系副词：三、分类1.限制性定语从句：对先行词有限制,区分的作用,并与先行词有着不可分割的关系,不能省略2.非限制性定语从句：对先行词起补充说明的作用,可省略不会影响主句的意思,与主句用逗号隔开3.区别：4.非限制性定语从句的特殊情况有些既可以做限制性,又可以做非限制性的定语从句,其含义不同There are 20 students in this class who are from the north of China. There are 20 students in this class,who are from the north of China.5.关系代词that和关系副词why不能引导非限制性定语从句四、关系词的用法,thatwhich指物,在从句中作主语,宾语that指人或物,指人可与who,whom互换；指物可与which互换,whom从句中的介词提到关系代词词前,whom作宾语,不能用who代替In our class there are 46 students, of whom half wear glasses.先行词为指人的one,ones,anyone或those时,关系代词用who；双重定语从句中一个定语从句的关系代词是that,另一个指人的关系代词用who;3.whose表示“……的”;可指人或物;用来指物时,whose+名词=限定词+名词+of which=of which+限定词+名词The house whose windows face south is ours.The house the window of which face south is ours.=The house of which the window face south is ours.4. as作为关系代词可指人或物,在从句中作主语,宾语或表语;一般用于such...as 、the same...as 、as...as结构中,表示“像”的意思We have found such materials as are used in their factory.They felt such heat in the jungle as they had never felt before.He is not the same man as he was.same...as/that...和such...as/that①the same...as/that...as引导的定语从句往往侧重方式：I bought the same phone as you bought. that引导的定语从句侧重指同一个对象：I met the same person that I saw that day.②such...as/thatas引导定语从句,在从句中作主语,宾语等：Peter is not such an intelligent person as you think.that引导结果状语从句,在句子中不作成分：He came to such a sudden stop that we almost hit him.as和which的区别①④⑤⑥⑦⑧都可以用来引导非限制性定语从句,有时可以互换②as引导的从句可以位于主句之前,之中和之后；而which只能位于主句之后③当非限制性定语从句为否定句或谓语带的是复合宾语结构时,用which来引导He criticized Mary in public,which she doesn’t like at all.He was always late for school,which made his teacher unhappy.④先行词作主语且定语从句为被动语态时,通常用as不用which；如果从句中行为动词是主动语态,一般用which作主语She passed the exam, as was expected.Tom has made rapid progress,which makes me happy.⑤当主句和从句存在逻辑上的因果关系时,通常用which不用asTom was late for work again and again,which made his boss very angry.⑥固定搭配：as we know/as is known to allas we all can seeas has been said before/aboveas might be expectedas is often the case⑦在从句中作介词宾语时,只能用whichShe might possibly come,in which case I’ll tell you.5.只用that不用which当先行词是all,much,little,few,everything等不定代词或被不定代词修饰时;当先行词被the only,the last,the very等修饰时;当先行词是形容词最高级或被形容词最高级修饰时;当先行词是序数词或被序数词修饰时;当先行词既有表示人又有表示物的名词时;当主句的主语是疑问词who或which时;当先行词是主句的表语,或关系代词在从句中作表语时：Jack is not the man that he was.当主句以here,there开头且先行词是指物的名词时;6.只用which不用that关系代词前有介词;在非限制性定语从句中;先行词本身是that,those指物或双重定语从句中其中一个已用关系代词that时;先行词后有插入语时;Here is the CD which,as I have told you, is a great help to you.7.只用who不用that先行词为表示人的不定代词anyone,anybody,everyone,everybody,someone,somebody,one,no one时;先行词为those且指人时;在指人的非限制性定语从句中;that/what连接词what可以看作关系代词和先行词的结合,即what=the person/place/thing which/that;表示“所....的;”what 不引导定语从句,而是引导名词性从句;what引导句子,没有先行词,起名词作用;What引导宾语从句可以和that引导的定语从句互换;Tell me anything that you know.=Tell me what you know.9.介词+关系代词既能够引导限制性,也可以引导非限制性定语从句;指物用which,指人用whom;介词不可省略,如果要省略,必须将介词放在从句句末;介词的确定①根据定语从句中动词,形容词所需要的习惯搭配来确定;②根据先行词搭配的具体含义来确定;③根据所表达的意思来确定;介词+关系代词结构的变式①介词+关系代词+不定式She must have time in which she could grow calm.=in which to grow calm Frank’s dream is to have his own garden in which he can produce many beautiful flowers.=in which to produce many beautiful flowers②名词/代词/数词+介词+关系代词He told us a story in English, the meaning of which I couldn’t understand completely.There are about 400 students in our grade,most of whom are from Haidian District.10.关系副词：作时间状语：when=at/in/on/during which作地点状语：where=in/at/to/on which作原因状语：why=for which辨析The reason why.../The reason that.../The reason is that...The reason why...中why引导的是定语从句,why在句子中作原因状语,可以替换成for which;The reason that...中that引导的是同位语从句,that不作成分,that后面的内容说明reason的内容;The reason is that...是that引导的表语从句,不能用because,以免重复;五、其他1.主谓一致：从句中的谓语动词要和先行词的单复数保持一致;在“the one of + 复数名词”结构中,定语从句中的谓语动词常用复数形式;但是在the one of +复数形式或the only one of +复数名词结构中,定语从句的谓语动词用单数形式;2.关系词的省略与不可省略：关系代词在定语从句中作动词的宾语,表语时可以省略关系代词在定语从句中作介词的宾语,且介词在从句句尾时非限制性定从中的关系代词不可省略介词+关系代词中的关系代词不可省略表示时间的名词后关系副词可以省略,如the time,the moment表示地点名词后关系副词可以省略,如the place先行词the reason后面的关系副词可以省略先行词为way方法,手段时,关系副词可以省略3.如何判断定语从句和同位语从句根据that在从句中是否作成分来判断：that在定语从句中担任成分,在同位语从句中不做成分;The newsthathe told me yesterday is not true.The news that he singer will come here is not true.根据意思来判断：在引导词前加is后,如果句子成立就是同位语从句,否则是定语从句;The news is that he told me yesterday.句子不成立The news is that the singer will come here.句子成立4.定语从句转变为ing和ed形式直接转化为ing或ed形式,,去掉定语从句中who/which is/was/are/were.The boy who is playing the piano is from London.I like this film,which was directed by Zhang Yimou.将句子中的动词进行ing形式转化①The number of people who learn Chinese rises each year.=The number of people learning Chinese rises each year.②My grandfather,who hasn’t been used to living in the city,has decided to settle in the country.=My grandfather,not having been used to living in the city,has decided to settle in the country.=Not having been used to living in the city, my grandfather has decided to settle in the country.。