英语中定语从句是什么精编3篇

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定语从句简单例句1

指人在从句中做主语

(1) The boys who are playing football are from Class One. 在踢足球的男孩们是一班的。

(2) Yesterday I helped an old man who lost his way. 昨天,我帮助了一个迷路的老人。

2. whom指人,在定语从句中充当宾语,常可省略。

(注:who和whom已无太大区别,可以通用。)

(1) Mr. Liu is the person (whom) you talked with on the bus. 刘先生就是在公交车上和你聊天的那个人。

(2) Mr. Ling is just the boy whom I want to see. 凌先生恰巧就是我想见的那个男孩。

(3) The man who/whom you met just now is my friend. 你刚刚见到的那个人就是我的朋友。

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。

如果在从句中做宾语,就用whom或who.比如: He is the man whom/who I talk to. 他就是那个和我聊天的男人。

如果是在从句中作主语就只能用who.比如: He is the man who has an English book. 他就是那个有英语书的男人。

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. 足球是大多数男孩都喜欢的游戏。

(2) This is the pen (which) he bought yesterday. 这是他昨天刚买的钢笔。

4. that指人时,相当于who或者whom;指物时,相当于which。

在定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 year rises 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 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 color is yellow?

(6) Do you like the book the color of which is yellow?

定语从句归纳及用法2

I 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,英语定语从句知识和用法概述。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?(who/that在从句中作主语)

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)

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:

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。

Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。

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.

农村出现了前所未有的繁荣。(which / that在句中作宾语)

The package (which / that)you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)

II. 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。例如:

There are occasions when (on which) one must yield. 任何人都有不得不屈服的时候。

Beijing is the place where(in which) I was born. 北京是我的出生地。

Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗?

2)that代替关系副词,可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句,在口语中that常被省略。例如:

His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。

He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。

III.判断关系代词与关系副词

方法一: 用关系代词,还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语,就必须要求用关系代词;而不及物动词则要求用关系副词。例如:

This is the mountain village where I stayed last year. 这是我去年呆过的山村。

I'll never forget the days when I worked together with you.我永远不会忘记与你共事的日子。

判断改错:

(错) This is the mountain village where I visited last year.

(错) I will never forget the days when I spent in the countryside.

(对) This is the mountain village (which) I visited last year.

(对) I'll never forget the days (which) I spent in the countryside.

习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。

方法二: 准确判断先行词在定语从句中的成分(主、谓、宾、定、状),也能正确选择出关系代词/关系副词。

例1. Is this museum ___ you visited a few days age?

A. where B. that C. on which D. the one

例2. Is this the museum ____ the exhibition was held.

A. where B. that C. on which D. the one

答案:例1 D,例2 A

例1变为肯定句: This museum is ___ you visited a few days ago.

例2变为肯定句: This is the museum ___ the exhibition was held.

在句1中,所缺部分为宾语,而where, that, on which都不能起到宾语的作用,只有the one既做了主句的表语,又可做从句的宾语,可以省略关系代词,所以应选D,英语语法《英语定语从句知识和用法概述》。

而句2中, 主、谓、宾俱全,从句部分为句子的状语表地点,既可用副词where,又因 in the museum词组,可用介词in + which 引导地点状语。而此题中,介词on 用的不对,所以选A。

关系词的选择依据在从句中所做的成分,先行词在从句中做主、定、宾语时,选择关系代词(who, whom, that, which, whose); 先行词在从句中做状语时,应选择关系副词 ( where 地点状语,when 时间状语,why 原因状语) 。

IV. 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。限制性定语从句是先行词不可缺少的部分,去掉它主句意思往往不明确;非限制性定语从句是先行词的附加说明,去掉了也不会影响主句的意思,它与主句之间通常用逗号分开。例如:

This is the house which we bought last month. 这是我们上个月买的那幢房子。(限制性)

The house, which we bought last month, is very nice.这幢房子很漂亮,是我们上个月买的。(非限制性)

2) 当先行词是专有名词或物主代词和指示代词所修饰时,其后的定语从句通常是非限制性的。例如:

Charles Smith, who was my former teacher, retired last year. 查理?史密斯去年退休了,他曾经是我的老师。

My house, which I bought last year, has got a lovely garden. 我去年买的'的那幢房子带着个漂亮的花园。

This novel, which I have read three times, is very touching. 这本小说很动人,我已经读了三遍。

3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数。例如:

He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思,这使我心烦。

Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽,这就叫做蒸发。

说明:关系代词that和关系副词why不能引导非限制性定语从句。

V. 介词+关系词

1)介词后面的关系词不能省略。

2)that前不能有介词。

3)某些在从句中充当时间,地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。例如:

This is the house in which I lived two years ago. 这是我两年前住过的房子。

This is the house where I lived two years ago.

Do you remember the day on which you joined our club? 还记得你加入我们俱乐部的那一天吗?

Do you remember the day when you joined our club?

VI. as, which 非限定性定语从句

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。例如:

As we know, smoking is harmful to one's health. 如我们所知,吸烟有害健康。

The sun heats the earth, which is very important to us. 太阳使地球暖起来,这对我们人类很重要。

典型例题

1)Alice received an invitation from her boss, ___came as a surprise.

A. it B. that C. which D. he

答案C. 此为非限定性从句,不能用 that修饰,而用which.,it 和he 都使后

句成为句子,两个独立的句子不能单以逗号连接。况且选he句意不通。

2)The weather turned out to be very good, ___ was more than we could expect.

A. what B. which C. that D. it

答案B。which可代替句子,用于非限定性定语从句,而what不可。That 不能用于非限定性定语从句,it不为连词,使由逗号连接的两个句子并在一起在英语语法上行不通。

3)It rained hard yesterday, ____ prevented me from going to the park.。

A. that B. which C. as D. it

答案B. as 和which在引导非限制性定语从句时,这两个关系代词都指主句所表达的整个意思,且在定语从句中都可以作主语和宾语。但不同之处主要有两点:

(1)as 引导的定语从句可置于句首,而which不可。

(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.。在本题中,prevent由于是行为动词,所以正确选项应为B。

as 的用法

例1. the same…as;such…as 中的as 是一种固定结构, 和……一样……。例如:

I have got into the same trouble as he (has)。 我碰到了跟他一样的麻烦。

例2. as可引导非限制性从句,常带有'正如'。例如:

As we know, smoking is harmful to one's health. 如我们所知,吸烟有害健康。

As is known, smoking is harmful to one's health.

As是关系代词。例1中的as作know的宾语;例2中,它充当从句的主语,谓语动词know要用被动式。

VII. 先行词和关系词二合一

1) Whoever spits in public will be punished here. (Whoever 可以用 anyone who 代替)

英语定语从句语法解析3

关系代词as与which引导的非限制性定语从句,其先行词都可以是整个主句,指代主句的整个意 思。但as和which具有不同的词义、句法和用法。

1、 as引导的从句表示说话人的看法、态度、解释或评论

引导定语从句时,as仍具有正如,像,由……可知等意思,翻译时 有时可不必译出。as定语从句常含有这些动词:see, know, hear, watch, remember, say, tell, show, expect, guess等,这类动词与as连用几乎成了一种固定搭配。as引导的此类从句可以置于句首、句中或 句尾。如:

The famous magician Liu Qian, as we all know, is from Taiwan. 众所周知,著名魔术师刘 谦是台湾人。

There is a net bar around here, as I remember. 我记得这儿附近有一家网吧。

As is often the case, girls like dolls while boys like guns. 女孩子喜欢玩具而男孩子 喜欢枪,这是常见的情况。

2、 which引导的从句对主句所叙述的事情进行补充说明,表明事物的状态或结果

which此时指前面主句所提到的这件事,常译为这一点,这件事等。这时它所引 导的从句与主句之间常含有并列、因果关系。注意,它引导的从句不像as那样位置灵活,它只能位于主句 的后面。如:

He changed his mind again, which made us all angry. 他又改变了主意,这使我们大家都生 气了。

She tore up my photos, which (=and that) upset me.她撕碎了我的照片,这使我很不安。

3、 在从句中作定语或介词的宾语时,要用which,不用as

Jenny might come, in which case I‘ll ask her. 詹妮可能会来,要是那样的话我就去问 她。

She graduated from a local middle school, after which she went to Beijing University. 她毕业于当地的一所中学,之后她去了北京大学。

4、 当从句的谓语动词是否定形式或含着一个复合宾语时,一般用which而不用as

He pretended not to know me, which I didn’t understand. 他假装不认识我,这是我搞 不明白的。

He admires everyone in his class, which I find quite strange. 他羡慕班里的每个学生, 我认为太奇怪了。

特别说明

as引导非限制性定语从句的最大特点是位置灵活;其次,as有以下常见的,而which不具备的 固定表达:

as we all know 众所周知

as I can remember 正如我所记得的

as often happens 正如经常发生的那样

as we expect 正如我们预料的那样

as you see 这一点你明白

as was expected 正如预料的那样

as can be seen 看得出来

as may be imagined 正如可以想象的那样

as has been said above 如上所述

as we all can see 正如我们都能看到的那样

as is often the case 像常规那样

as everybody can do 正如人人都能做到的那样

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