定语从句专项知识点总结汇总
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。
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定语从句专项知识点总结汇总
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定语从句(Attributive Clauses)在句中做定语，修饰一个名词或代词，有时也可以修饰部分或整个句子。
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, as。
关系副词有：when, where, why, how。
关系代词和关系副词放在先行词和定语从句之间，起连接作用，同时又可做定语从句的一个成分。
当关系代词做宾语时可以省略。
定语从句中的谓语动词必须在人称上和数量上和先行词保持一致。
定语从句分为限制性定语从句和非限制性定语从句。
1
关系代词引导的定语从句
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?
(who/that在从句中作主语)
He is the man whom/ that I saw yesterday.
(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：
Please pass me the book whose (of which) cover is green.
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.
(which / that在句中作宾语)
The package (which / that) you are carrying is about to come unwrapped.
(which / that在句中作宾语)
关系代词that和which 都可以指物，that 和Who 都可以指人，其用法区别：
>>>>
不用that的情况：
a) 在引导非限定性定语从句时
(错)The tree, that is four hundred years old, is very famous here.
b) 介词后不能用
We depend on the land from which we get our food.
c) 多用who 的情况
①关系代词在从句中做主语
A friend who helps you in time of need is a real friend.
②先行词为those, people 时
Those who were either fools or unfit for their offices could not see the cloth.
③先行词为all, anyone, ones, one 指人时
One who doesn't work hard will never succeed in his work.
④在There be句型中There is a stranger who wants to see you.
⑤在被分隔的定语从句中
A new teacher will come tomorrow who will teach you German.
⑥在有两个定语从句的句子中，其一用who，其二用that,但若先行词后接两个以上的并列定语从句时，后一个必须重复前一个关系代词。
The student who was praised at the meeting is the monitor that is very modest and studies very hard.
There is a teacher who is always ready to help others and who enjoys what he does.
>>>>
只能用that作为定语从句的关系代词的情况
a)在不定代词，如：anything, nothing, everything, all, much, few, any, little等作先行词时，只用that，不用which。
All that is needed is a supply of oil.
Finally, the thief handed everything that he had stolen to the police.
b)先行词有the only, the very, the just修饰时，只用that。
He is the very man that helped the girl out of the water.
c)先行词为序数词(the last)、数词、形容词最高级时，只用that。
The first English book that I read was "The Prince and the Pauper" by Mark Twin.
d)先行词既有人，又有物时。
He talked about the teachers and schools that he visited.
e)当主句是以who 或which 开始的特殊疑问句时，用that 以避免重复。
Who is the person that is standing at the gate.
f)关系代词在从句中做表语
He is not the man that he used to be.
3
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、方式或理由的名词，在从句中作状语。
关系副词when, where, why, how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.
Beijing is the place where (in which) I was born.
Is this the reason why (for which) he refused our offer?
I'm surprised the way how (by which) he works out the problem.
>>>>
注意：
①在非限制性定语从句中，"介词+ which"结构不能代替关系副词。
如：They set up a state for their own , where they would be free to keep Negroes as slaves.
②含有介词短语的动词一般不能拆开，介词仍放在动词后面。
Is this the book which (that) she was looking for?
3
名词/数词/代词/形容词最高级+ 介词+ 关系代词引导定语从句
She has written a book , the name of which I have forgotten.
There are fifty-five students in our class , all of whom are working hard. There are five continents in the world , the largest of which is Asia.
4
as, which 引导非限定性定语从句的差别
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。
As一般放在句首，which在句中。
As we know, smoking is harmful to one's health.
The sun heats the earth, which is very important to us.
as可引导非限制性从句，常带有“正如”的意思。
As is know, smoking is harmful to one's health.
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用法区别：
(1) as 引导的定语从句可置于句首，而which不可。
As we all know, he never smokes.
(2) as 代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词;若为行为动词，则从句中的关系代词只能用which。
(3)非限定性定语从句中出现expect, think, suppose 等表示猜测、想象、预料等时。
She succeeded in her doing the research work , as we expected.
(4)As 的用法the same…as; such…as 中的as 是一种固定结构, 和……一样……。
I should like to use the same tool as is used here.
We should have such a dictionary as he is using.。