定语从句知识点归纳是什么-

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定语从句知识点如下：

1、限制性定语从句不用逗号与主句隔开。

2、非限制性定语从句需使用逗号和主句隔开。

3、whose既可以指人，也可以指物；that既可以指人，也可以指物。

4、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。

5、when指时间在定语从句中做时间状语也可做连接词用。

新概念英语第一册语法知识点：定语从句

定语从句由关系代词who、whom、whose、which、what、as和关系副词where、when、why等引导，但须记住：

1.what不能引导定语从句.

2.关系词的分析须考虑它在定语从句中的成分。

一.指人的关系代词有who、whose、whom、that. 试分析：

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.）注：

A． 指人时有时只用who不宜用that。

1．先行词为one、ones或anyone

（1）The comrade I want to learn from is the one who studies hard and works hard.

（2）Anyone who breaks the law should be punished.

2．先行词为these时

These who are going to Beijing are the best students of our school.

3．在there be 开头的句子中

There is a student who wants to see you.

4．一个句子中带有两个定语从句，其中一个定语从句的关系代词是that，另一个宜用who，以免重复。

The student that won the first prize is the monitor who works hards.

5．在非限制性定语从句中

A。I met a friend of mine in the street, who had just come from Japan.

B．主句以who开头的句子中,只用that,不用who。

二．指物的关系代词有which、whose(=of which)、that. 试分析：

1. I like the books which / that were written by Lu Xun.

2. The desks (which/that) we made last year were very good.

3. This is the house in which we lived last year. (= This is the house which /that we lived in last year.)

4. I live in the room whose windows face south. (= I live in the room ,the windows of which face south.)

注：

A. 介词如果位于作为其宾语的关系代词之前时，只能用whom、 which不能用who或that.

(1). The girl about whom they were talking is our monitor.

(2). The book in which there are many interesting things was written by Li Ming.

B. 部分短语动词中的介词不可与动词拆开，在定语从句中其介词不可前置，只能放在其动词之后。

Is this the book which she is looking for?

The old man who/whom they are waiting for is Professor Li.

The child who/whom she is looking after is Wang Ping’s son.

C． 指物时，下列情况下只能用that ，不宜用which。

英语定语从句知识点总结是什么?

　定语从句

　1.了解定语从句的构成，首先应了解一些相关的基本概念。

　a.被修饰的名词等成分通常叫做先行词;b.连接先行词和定语从句的词为关系词。

　2.定语从句由关系代词、关系副词和关系限定词三类关系词连接而成，这三种也将在定语从句讲解中一一说明。

　定语从句讲解关系词的具体用法

　1.关系代词 which，who，whom，that 和 as

　2.关系代词，顾名思义，必有代替对象。上述五个关系代词各有其具体指代对象，在从句中作相应的成分。此外，它们引导的定语从句和先行词是形容词与名词的修饰关系。

　例句及翻译

　例句1:

　Pumas are large，cat-like animals( that/which are found in America.)

　译文美洲狮是体形似猫的大型动物，产于美洲。

　注解关系代词作从句主语，不可省略。

　例句2:

　The house (that/which we built last year) is very attractive.

　译文我们去年建造的房子很讨人喜欢。

　注解关系代词作从句宾语，可省略。

　例句3:

　The novel (with/which most of you are familiar) has been adapted for the

screen.

　译文你们大多数都很熟悉的那部小说已被改编搬上了荧屏。

　注解关系代词直接置于介词后作介词宾语，此时不可被that替换，也不可省略。

　例句4:

　He was no longer the reckless young man( that/which he was two years

ago).

　译文他不再是两年前那个莽撞的小伙子了。

　注解关系代词作从句表语，可省略;此外，先行词the young man代表一种状态，属物的范畴，不能用who来引导定语从句。

　例句5:

　Migrant workers(to whom much more attention has been paid) strongly desire

that their wages should be duly paid.

　译文现在民工受到了社会更大的关注，他们强烈渴望自己的工资能够及时发放。

　注解关系代词直接置于介词后作介词宾语，此时不可被who替换，也不可省略。

　例句6:

　Such accommodations(as they could find) were generally expensive.

　译文他们能够找到的这些住所费用往往比较昂贵。

　注解之所以选择关系代词as引导定语从句，是因为前面有such之故。

　例句7:

　Such inns(as there were in the mountains) were generally poor.

　译文这些山区里的酒馆条件往往比较糟糕。

　注解之所以选择关系代词as引导定语从句，是因为前面有such之故。　例句8:

　This is the same mosquito(as bit you just now).

　译文这只蚊子和刚才咬你的那只是同一种蚊子。

　注解之所以选择关系代词as引导定语从句，是因为前面有the same之故。

　定语从句讲解小结：

　(1)一般来讲，which和that用来替代指物的先行词，在定语从句中可作主语、宾语或表语

(that不能作介词后面的宾语);who替代指人的先行词，在定语从句中作主语或宾语(但不能

作介词后面的宾语);whom是who的宾格形式，替代指人的先行词，在定语从句中只能作宾 语;as作为关系代词，只能用于一些特殊搭配(such... as/the

same... as)。

　(2)that既可指物也可指人，但在当代英语中，多指物。

　(3)当关系代词在限制性定语从句中作宾语或表语时，经常可省略，但当which，whom 紧跟在介词后则不可省略。

　例如：

　Is that the man(with whom you are going to set up a law firm)?

　Is that the man(who/whom)(you are going to set up a law firm with)?

　只能用that的情形

　a.当先行词为 all,much,anything, something, nothing,everything, little,none 等不定代

词，或先行词被all，any，every等不定代词修饰时，只能用that替代指物的先行词。

　例如：

　①That'a all(that I ask for).

　译文这就是我要的一切。

　②Is there anything(that I can do for you) ?

　译文我可以为您效劳吗?

　③Every tearo(that intends to participate in the contest) is to submit a fee

of 2000.

　译文每一个意欲参加比赛的队伍都应该缴纳两千元的费用。

　b.先行词被形容词最髙级修饰，或被the only,the first,the last,the next,the

very等修饰时，只能用that替代指物的先行词。

　例如：　①He eats the finest food(that is available).

　译文他吃的是所提供的最精美的食物。

　②The first case of bird flu( that was reported in Thailand) captured the

attention of officials with WHO.

　译文泰闰报道的例禽流感引起了世界卫生组织官员们的注意。

　③This is the very book(that I have been hunting for a long time).

　译文这就是我长期以来一直寻找的那本书。

　c.先行词既包括人，又包括物时。

　例如：

　①He is always talking brilliantly of the book and author(that interested

him)

　译文他对那本书及其作者很感兴趣，总是兴高采烈地谈论着他们。

　② We were deeply impressed by the school and its teachers (that we had

visited there).

　译文我们访问的学校和老师给我们留下了深刻的印象。

　(5)只能用which的情形

　a.用于介词之后(可参见A例句3)。

　b.用于非限制定语从句中。

英语定语从句知识点总结有：

1、引导词的位置位于定语从句之前（先行词之后）。

2、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。

3、除why和that不能引导非限定性定语从句外，其余引导词都可以，用法同限定性定语从句一样。

4、as指人或物，在定语从句中可作主语，宾语，表语或状语，不能省略。

5、定语从句一般由关系代词和关系副词引导。

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