名词性从句用法详解-

高一语法专题：名词性从句

在句子中起名词作用的从句叫名词性从句。名词性从句的功能相当于名词词组，它在

复合句中能担任主语、宾语、表语、同位语，因此根据它在句中不同的语法功能，名词性

从句又可分为主语从句、宾语从句、表语从句、同位语从句。

引导名词性从句的词叫做连接词，包括：1. 连词（在名词性从句中只起连接作用，不

作成分）

2. 连接代词（在名词性从句中作主语、宾语

或表语）

3. 连接副词（在名词性从句中作状语）

I 主语从句：是在主句中作主语的从句。它由连接词引导，通常位于谓语动词之前。

&

连接词：

1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。

That he got the first prize excited him much.

他获得一等奖一事使他非常兴奋。

It is doubtful whether we can get there on time.

我们能否按时到达那儿还不确定。

1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。一般情况

下that不可省略。

That light travels in straight lines is known to all.

众所周知，光沿直线传播。

That you don't like him is none of my business.

（

你不喜欢他不关我的事。

2）whether引导的主语从句：常置于句首，表示“是否”之意；

Whether he can finish his task on time is of great

importance.

他是否能按时完成任务非常重要。

Whether you can succeed or not depends on how

hard you work at it.

你能否成功取决于你努力的程度。

2.连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具

体意义且不能省略。常见的连接代词有who, whom, whose, what, which,

.

whoever, whomever, whatever, whichever。

What we should do with the problem is undecided.

我们如何处理这个问题还未作出决定。（what引导主语从句，不表疑问意义）

Whom the letter was from is still unknown.

这封信是谁邮寄的还不清楚。

3.连接副词：在从句中起副词的作用，常作从句的状语，表示时间、地点、原因、方式等。

常见的连接副词有when, where, how, why, whenever, wherever, however等。

Why he did that wasn't quite clear.

他为什么做那件事还不十分清楚。

Where we can look up his address is still a problem.

我们在哪儿可以查他的地址还是个难题。

…

注意：it代替主语从句作形式主语

that从句作主语通常用it作形式主语，而将that从句置于句末。

常见的it替代主语从句的句式主要有以下几种：

1）It + 系动词 + 形容词 + that从句

It is quite clear that the whole project is doomed to failure.

很清楚，整个计划注定要失败。

It is likely that there will be a snowstorm tomorrow.

明天很可能会有一场暴风雪。

2）It + 系动词 + 名词 + that从句

常见的用于此结构的名词有：a pity（遗憾），a shame（遗憾，耻辱）， a fact

（事实），an honor（荣耀），a wonder（奇迹），no wonder（难怪），good news

]

（好消息）等。

It's no wonder that you've achieved so much success.

难怪你已取得了如此大的成功。

It's a pity that you didn't attend their wedding.

你没有参加他们的婚礼真是遗憾。

3）It + 系动词 + 动词的过去分词 + that从句

It is said that no passengers were injured in the accident.

据说在那次意外事故中没有乘客受伤。

It is announced that the plan has been successfully carried out.

据宣布计划已被顺利实施。

4）It + 特殊动词+ that从句

(

常用于这种结构的动词有：seem（看上去），appear（显得），happen （碰巧），

matter（关系重大），turn out（结果），occur to sb. （某人突然想起）等。

It seems to me that he objects to the plan.

在我看来，他好像反对这个计划。

It happened that I met an old friend on the street yesterday.

昨天我碰巧在街上遇见了一位老朋友。

II 宾语从句：在主句中起宾语作用的从句称为宾语从句。宾语从句可分为动词的宾语从句、

介词的宾语从句和形容词的宾语从句。

1. 连词that, if/ whether引导的宾语从句

引导宾语从句时，that, whether/if 都只起连接作用，在从句中不作任何成分。

that无实义，在句子中可以省略；

)

wether/if 意为“是否”，不可省略。

He said (that) he couldn't finish his work before dusk.

他说黄昏之前他完不成任务。

Nobody knows whether/ if he likes school or not.

没有人知道他是否喜欢上学。

注意：whether/ if都意为“是否”。一般情况下，它们可以互换，口语

中常用if，

但在以下情况中，只能用whether：

1）与or not 紧接连用时。如：

Let me know whether or not you can come.

请让我知道你是否能来。

2）作介词的宾语从句时。如：

|

We are interested in whether you will attend the meeting.

我们对你是否会参加会议感兴趣。

3）引导主语从句、表语从句与同位语从句时

4）在动词不定式前时。如：

I don’t know whether to go.

2. 连接代词引导的宾语从句

who, whom, what, which, whomever, whoever, whatever, whichever 等引导宾语从句，

并且在宾语从句中充当主语、宾语、表语、定语等成分, 每个连接代词都有自己特定

的意义，一般不省略。

Do you know who is in charge of the company

你知道谁负责这家公司吗（作主语）

》

Can you tell me which boy is your son

你能告诉我哪个是你儿子吗（作定语）

What do you think his job is

你认为他是干什么工作的（作表语）

3.连接副词引导的宾语从句

when, where, why, how, whenever, wherever, however等引导宾语从句，并且在宾语从

句中充当状语，表示时间、地点、原因、方式等。

（有时how much, how many等也可引导宾语从句。每个连接副词都有自己特定的意义，

一般不省略。）

The police asked me how the accident happened.

警察问我事故是怎么发生的。（方式状语）

《

I don't know when we will meet again.

我不知道我们何时才能再见面。（时间状语）

Do you know where Mr. Brown lives

你知道布朗先生住在哪儿吗（地点状语）

使用宾语从句的注意事项

1.宾语从句的语序：在宾语从句中要用陈述句语序。

He asked me when we could set out the next day.

他问我第二天什么时候可以出发。

Did you find out where she lost her car

你查出她在哪里丢的车了吗

2.宾语从句的时态：1）如果主句的谓语是一般现在时，其宾语从句的时态可以是

任何适当

！

的时态。

She says (that) she works from Monday to Friday.

她说她周一至周五上班。（从句时一般现在时）

She says (that) she will leave a message on his desk.

她说要在桌子上留个便条。（从句是一般将来时）

She says (that) she has never been to Mount Emei.

她说她从来没有去过峨眉山。（从句是现在完成时）

2）如果主句的谓语是一般过去时，其宾语从句的时态一般要用适当的

过去时态（客观真理、事实除外）

He said there were no classes yesterday afternoon.

他说昨天下午没有课。（从句是一般过去时）

￥

He said that he was going to take care of the baby.

他说他会去照看这个婴儿。

He said that they were having a meeting at that time.

他说他们那时正在开会。（从句是过去进行时）

3）当宾语从句是表达客观真理和规律的句子时，其时态仍用一般现在

时。

The teacher told us that nothing is difficult if we

put our heart into it.

老师告诉我们，世上无难事，只怕有心人。

He said that light travels much faster than sound.

他说光比声传播得快。

解题技巧：1. 动词find, feel, think, consider, make, believe, guess, suppose, assume等后有宾

]

语补足语时，则要用it作形式宾语，而将that宾语从句后置。

I think it necessary that we take plenty of boiled water every day.

我认为每天多喝开水是有必要的。

I have made it a rule that I keep diaries.

我每天写日记成了惯例。

2. hate, like, take, owe, have, take for granted等表示“喜欢；痛恨；认为”的动

词或动词短语和see to 表示“注意，留意”后有宾语补足语时，要用it作

形式宾语而将宾语从句后置。

I hate it when they talk with their mouth full of food.

我讨厌他们含着满嘴食物说话。

When you start the engine, you must see to it that the car is in neutral.

$

启动发动机时，一定要使汽车的离合器处于空挡位置。

3. 介词后的宾语从句。

She is always thinking of how she can do more for others.

她总想着如何才能为别人做得更多。

We are talking about whether we admit students into our club.

我们正讨论是否让学生加入我们的俱乐部。

4. 宾语从句的否定转移。将think, believe, suppose, expect, fancy, imagine等动

词后面宾语从句的否定词转移到主句中，即主句的谓语用否定式，而从句

的谓语用肯定式。

I don't think I know you.

我想我并不认识你。

<

I don't believe he will come.

我相信他不回来。

注意：反意疑问句的主语一般与宾语从句的主语保持一致，附加问句用肯

定形式。（主语是第一人称且为一般现在时）

I don't suppose that's his fault, is it

我认为这不是他的过错，是不是

5. 宾语从句中的特殊疑问形式（又称双重疑问句）

在某些宾语从句中，宾语从句的连接代词或连接副词常被移到

主句之前，

构成特殊疑问形式，其构成为：

Wh-/ How do you + vt. +宾语从句的其他部分

常见的用于此结构的动词有think, believe, consider, suppose, imagine, expect,

？

guess, say等。

What do you think we will do next

你认为我们下一步该怎么办

Who do you guess will be our new headmaster

你猜谁会是我们的新校长

6.宾语从句中引导词that不可省略的情况

一般情况下，宾语从句中的引导词that 可省略，但下列情况下一般不省

略that：

1）介词except, but, besides等后跟that引导的宾语从句时。 The American stood quite still, except that his lips moved slightly.

那个美国人站着一动不动，只是嘴唇还微微在动。

！

2）that引导的宾语从句和主句之间有插入语时。

I think, first of all, that we must believe in ourselves.

我认为，尤其重要的是，我们必须对自己有信心。

He said, in his opinion, that Lei Feng was a good example of serving the

people heart and soul.

他说，在他看来，雷锋是一个全心全意为人民服务的好榜样。

3）宾语从句为主从复合句且从句位于主句之前时。

He said that if he came back early, he could come for the meeting.

他说如果回来的早的话，他会来参加会议的。

Mary said that, as she was not well, she could not get the highest score in

the midterm exam.

|

玛丽说，因为身体不好，她无法在期中考试中得最高分。

4）当it作形式宾语，that引导的宾语从句后置时。

We have made it clear that we will learn to deal with various difficult

problems.

我们已经表明，我们将学会处理各种难题。

We took it for granted that they would accept the proposal.

我们想当然地以为他们会接受这个建议的。

5）有多个that引导的从句时，第一个that可以省略，而其他的that常不可

省略。

I think (that) it will clear up this afternoon and that they will come to say

goodbye to us.

$

我认为今天下午天会放晴，他们会来向我们告别的。

6）当when, who, what, where, why, how等引导的从句与that 引导的从句作

主句谓语动词的并列宾语时。

I know what the time is and that the wind remains low.

我知道现在是什么时候，且风依然不大。

I'm sure where he lives and that he is living a happy life.

我非常清楚他住在什么地方，而且他生活得很幸福。

宾语从句用法小结：

一是关键引导词，不同句子词相异：陈述句子用that；

一般疑问是否（if, whether）替；

特殊问句更好办，引导还用疑问词。

·

二是时态常变化，主句不同从句异：主句若为现在时，从句时态应看意；

主句若为过去时，从句时态向

前移。

三是语序要记清，从句永保陈述句。

III 表语从句

表语从句是在主句中作表语的从句，常跟在be, look, seem等系动词后。

常见的引导表语从句的连接词有that, whether; 连接代词who, whom, whose, which, what,

whoever, whomever, whichever, whatever; 连接副词when, where, how, why 引导。

1. that, whether引导的表语从句

that, whether引导表语从句时只起连接作用，不作任何成分；that无实义，whether意

为“是否”。

The fact is that we should depend on ourselves.

\

事实是我们应该依靠自己。

The question is whether we can reduce the cost of the project.

问题是我们能否降低这项工程的开支。

注意：当主语为表示“计划、建议、命令、要求、主张”等的名词时，其表语从句谓

语动词应用“(should+) 动词原形”。

My suggestion is that we (should) have a discussion about this matter instead of just

laying it aside.

我提议我们应当讨论一下这个问题，而不应把它放在一边。

The doctor's advice is that you (should) lie in bed for a few days.

医生建议你卧床休息几天。

2. wh- 词和because引导的表语从句

、

wh- 词包括连接代词who, whom, whose, what, which, whoever, whatever, whichever, 和

连接副词when, where, why, wherever, whenever等，此类词大多表示疑问意义，偶尔表

示陈述意义。because引导的表语从句表示陈述意义。

The question is how we can persuade him to go.

问题是我们如何才能说服他去。

That was where we camped last time.

那就是上次我们野营的地方。

3. as, as if, as though引导的表语从句

此类表语从句常跟在特定动词后面，如seem, appear, look, taste, sound, feel等。

It sounds as if someone is knocking at the back door.

听上去好像有人在敲门。

《

You look just as you looked 10 years ago.

你看上去和十年前完全一样。

I feel as though the house is shaking.

我感到好像房子在晃动。

4. reason作主语时的表语从句

reason作主语时，其表语从句需用that引导，一般不用why或because 引导。

（但reason的定语从句常由why引起）

The reason why he didn't pass the exam was that he was too careless.

他没有通过考试的原因是他太粗心了。

（why引导定语从句，the reason是先行词；that引导表语从句，the reason作主语）

The reason for the car accident is that the driver was drunk.？

这次交通事故是司机酒后驾驶导致的。

（that引导表语从句，the reason用作主语）

IV 同位语从句

同位语从句是用以解释说明某一名词内容的从句，所以它总是跟在某一个名词的后

面。该名词被称作先行词。

1. 同位语从句的连接词：that, whether, why, who, where, how, when等。 that, whether不作成分，that无实际意义，whether 表示“是否”；

其他连接词具有实义，同时在同位语从句中作一定成分。

（引导同位语从句的连接词一般都不省略）

We have proof that this man committed the crime.

我们有证据证明是这个人犯的罪。

》

I have no idea why she quit her present job.

我不知道她为什么辞职。

2. 可跟同位语从句的名词：advice建议belief信念，相信 doubt怀疑explanation解释

fact事实 fear害怕 feeling感觉 hope希望 idea想法，主意 news消息 possibility可能性thought想法

wish愿望 question问题 promise答应，诺言reply答复

suggestion建议 order命令 problem问题

I have no idea when they will be back and settle down.

我不知道他们什么时候回答定居。

He must answer the question whether he agrees to it or not.

他必须回答他是否同意这样一个问题。

）

The problem why the earth is becoming warmer and warmer is still

under discussion.

地球为什么变得越来越暖这一问题仍在讨论之中。

There is a feeling in me that we'll never know what a UFO is.

我内心有种感受，我们将永远不知道UFO是什么。

3. 同位语从句与定语从句的区别：

1）先行词不同：同位语从句的先行词常是一些具有具体信息内容或一定内涵的名词，如

idea, fact, news, hope, belief, suggestion, proposal, word, thought, doubt,

truth, possibility, promise, order等，而定语从句的先行词可以是名词、代

词、主句的一部分或是整个主句。

Word came that he had been abroad.

《

据说他已经出国了。（同位语从句）

The doctor whom you are looking for is in the room.

你找的那位医生在房间里面。（定语从句）

2）从句表达的含义与功能不同：定语从句是对其先行词的修饰或限制，属于形容词性从句的范畴；

而同位语从句是对前面抽象名词的进一步说明和解释，属于名词性

从句的范畴。

The news that our team has won the game is true.

我们队赢了那场比赛的消息是真的。

（同位语从句，补充说明news的内容）

The news that he told me yesterday was true.

（定语从句，news在从句中作told的宾语）

3）引导词的不同：有些引导词如how, whether, what可以引导同位语从句，但不能引导定

语从句。

The question whether we need it has not been considered.

我们是否需要它这个问题还没有考虑。（同位语从句）

I have no idea what has happened to him.

我不知道他发生了什么事。（同位语从句）

4）that引导的同位语从句与定语从句的区别

引导词that引导定语从句时，在从句中作主语或宾语，指物时还可以用which代替，

作宾语时常常省略；that在同位语从句中仅起连接作用，不充当任何成分，并且不能

省略，也不能用which来代替。

The order that we should send a few people to help the other groups was received yesterday.

我们昨天收到了应派几个人去帮助其他小组的命令。

（同位语从句，是对order的具体解释，that虽不作成分，但不能省略）

The order that we received yesterday was that we should send a few people to help the other

groups.

我们昨天收到的命令是我们应该派几个人去帮助其他小组。

（定语从句，是名词order的修饰语，that在从句中作received的宾语，可以省略）

定语从句特殊用法

定语从句中的特殊用法 定语从句是起定语作用的,修饰,说明名词,代词或句子内容的从句,被定语从句修饰的词叫做先行词。引导定语从句，并在句中担任成分的词叫做关系代词或关系副词。定语从句是高考常考内容之一，使用时要尤其注意以下十种特殊用法。 一、只用that不用which的情况 1、当先行词是all, little, few, much, something,everything, anything, nothing, none等不定代词时。如：Everything that happened then was like a nightmare.当时发生的一切就像是一场噩梦。 I will tell him all that you told me at the ball.我要把你在舞会上跟我说的话全都告诉他。 2、当先行词被only, any, few, little, no, all, just, very（恰好的,表示强调）等词修饰时。例如：The only thing that we could do was to wait.我们能做的只是等待。 That’sthe very thing that we can do.那正是我们能做的事。 3、当先行词是序数词、形容词最高级或先行词被序数词或形容词最高级修饰时。例如：The first place that we visited was the Great Wall.我们参观的第一个地方是长城。 This is the best novel that I have ever read.这是我看过的最好的小说。 4、被修饰词为数词时。例如： Yesterday I caught two fishes and put them in a basin of water. Now you can see the two that are still alive.昨天我捉到了两条鱼，把它们放在一盆水里。你可以看到那两条鱼还活着呢。 5、主句是There be结构，修饰其主语的定语从句宜用that作关系代词修饰物。例句：There’sstill a room that is free.还有一个空房间。

名词性从句

1 名词 一般来说名词主要考查： 1．可数名词复数构成的规则及不规则变化。 2．可数名词和不可数名词的判断与用法——对比。 3．名词的所有格，包括’s所有格，…of…所有格和双重所有格的用法。 4．名词作定语和名词构成的习语及用法等。 5．名词的词义辨析。 2名词性从句有哪些引导词？并试着说明他们的用法。 热点一．语序与时态： 能力激活1： 想一想：名词性从句中的语序要注意什么问题？ 1. No one can be sure _____in a million years. A. what man will look like B. what will man look like C. man will look like what D. what look will man like 3. I don’t know when_____, but if he _____, I’ll let you know. A. he comes , will come B he will come , will come C he will come, comes D he comes, comes 小结1：不管主句是肯定句、否定句还是疑问句,名词性从句总是使用_____________. 观察与比较：I’m not sure if he will come ,but if he comes ,I’ll let you know . 小结2：主句是现在时态，宾语从句用_________________. 感悟疑点: He has come, but I didn’t know that he _____ until yesterday. A is coming B will come C was coming D wasn’t coming 能力激活2： 想一想：宾语从句中的时态应如何与主句时态保持相应的一致？ 1.The police found that the house _____ and a lot of things _____． A．has broken into; has been stolen B．had broken into; had been stolen C．has been broken into; stolen D．had been broken into; stolen 2.We were all surprised when he made it clear that he _____ office soon．(NMET’93) A. leaves B. would leave C．left D．had left 小结1: 主句是过去时态时，宾语从句用_________________. 但如果表达真理性的，则用现在时。疑点：3．Mum is coming .What present do you expect _____for your birthday? A. that she has got B. that has she got C. she has got D. has she got 思考：句中出现插入语时，语序该怎么办？ 疑点观察、总结与拓展： 4. What do you think we should do to solve the problem of air pollution in cities? 5. Where do you suppose he can be? 小结2：以上句子体现了何种句式结构？_____________________________ 小试牛刀： 6. Rose looks worried. What do you think ____________________(她该怎么办)? Exception :7．He went up to see ________ with her.

名词性从句用法详解

名词性从句用法详解 一、概说 名词性从句，即指性质相当于名词的从句，它包括主语从句、宾语从句、表语从句和同位语从句。从高考的考查的实际情况来看，名词性从句考得最多的是宾语从句，其次是主语从句，再次是表语从句，而同位语从句则很少考查。 二、名词性从句的一般引导词 1. 连接词that 只起连接作用，没有任何意思，也不充当句子成分，在宾语从句中可省略，但引导其他名词性从句时通常不省略。如： I hope (that) you enjoy your holiday. 希望你假期过得好。 That he likes you is very obvious. 很显然他喜欢你。 2. 连接词whether 也不充当句子成分，但有自己的意思，表示“是否”；引导宾语从句时，可换成if，但引导其他名词性从句时不能换成if。如： He asked whether [if] I would show him the way. 他问我是否可以给他带路。 Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。(引导主语从句，不能用if 代替whether) 3. 连接代词who(m), whose, which, what 等，均有各自的意义，在从句中作主语、宾语、定语等。如： That’s why she wanted to leave. 这就是她想离开的原因。 When we arrive doesn't matter. 什么时候到没有关系。 Tell me which one you like best. 告诉我你最喜欢哪一个。 4. 连接副词when, where, why, how 等，也各自有自己的意义，在从句中作状语。如： The question is how we should carry out the plan. 问题是怎样执行这个计划。 When she’ll be back depends much on the weather. 她什么时候回来在很大程度上要看天气。 Why he did it will remain a puzzle forever. 他为什么这样做将永远是一个谜。 三、名词性从句的重要引导词 1. what 用于引导名词性从句是一个十分重要的引导词，它可引导主语从句、宾语从句和表语从句，但不用于引导同位语从句。它引导的名词性从句有两个意思是：一是表示“什么”，带有疑问意味；二是表示“…所…的”，相当于一个先行词后接一个关系代词。如： I don’t know what you want. 我不知道你想要什么。 I don’t know what you want is this. 我不知道你所想要的是这个。 2. what 引导名词性从句时可用作限定词，其后修饰名词。如： I gave him what books I had. 我把我所有的书都给他了。 He gave me what money he had about him. 他把身边带有的钱全给了我。 注：what 后的名词可以是复数名词或不可数名词，但通常不能是单数可数名词，并且后接不可数 名词时，有时可有little修饰，两者的区别是：what+不可数名词=所有的都，what little+不可数名词=虽少但全部。如：

定语从句及其引导词用法

一、基本概念： 在复合句中，修饰某一名词或代词的从句叫定语从句。如： Do you know the man who spoke at the meeting just now? That is the house where he lived ten years ago. 定语从句所修饰的词叫先行词；定语从句一般用关系代词或关系副词来引导，关系词放在先行词与定语从句之间起连接作用，同时又作从句中的一个成分。 引导定语从句的关系代词有：that, who, whom, whose, which; 关系副词有：when, where, why. 二、关系词的用法： （一）关系代词的用法： 1．作主语用who, which和that, 如： He is the man who/that lives next door. The train which/that has just left is for Shenzhen. 2．作宾语用whom, who, which, that, 如： The man (whom/who/that) we have just seen is a famous writer. Where is the book (which/that) I bought last week? 注：在非正式文体中，用于指人的关系代词who whom, that 通常可以省略，但在正式文体中通常用whom, 不可省略；用于指物的关系代词which和that 在非正式文体中也通常省略，但在正式文体中一般不省略。 3．作定语用whose, 如： (a) He is the man whose car was stolen last week. (b) It was a meeting whose importance I did not realize at that time. 注：“whose +名词中心词”这一结构在定语从句中既能作主语（如上a句），又能作宾语（如上b句）。whose 的先行词常用来指人，但有时也可以用来指具体事物或抽象概念，这时可以与of which 结构互换，词序是：“名词+of which”，如： They came to a house whose back wall had broken down.. (= the back wall of which) He’s written a book the name of which I’ve completely forgotten. (= whose name) 4．作表语只用that ，它既可以指人，也可以指物，但时常省略。如： He is no longer the man that he used to be. This is no longer the dirty place (that) it used to be. （二）关系副词的用法： 1．when 指时间，在从句中作时间状语，它的先行词通常有：time, day, morning, night, week, year 等。如： I still remember the time when I first became a college student. Do you know the date when Lincoln was born? 注：when时常可以省略，特别是在某些句型和某些时间状语中。如： Each time he came, he did his best to help us. But help never stopped coming from the day she fell ill. 2．where指地点，在从句中作地点状语。它的先行词通常有：place, spot, street, house, room,

名词性从句用法详解

高一语法专题：名词性从句 在句子中起名词作用的从句叫名词性从句。名词性从句的功能相当于名词词组，它在 复合句中能担任主语、宾语、表语、同位语，因此根据它在句中不同的语法功能，名词性 从句又可分为主语从句、宾语从句、表语从句、同位语从句。 引导名词性从句的词叫做连接词，包括：1. 连词（在名词性从句中只起连接作用，不 作成分） 2. 连接代词（在名词性从句中作主语、宾语 或表语） 3. 连接副词（在名词性从句中作状语） I 主语从句：是在主句中作主语的从句。它由连接词引导，通常位于谓语动词之前。 连接词：

1. 连词：在从句中不充当任何成分，常见的引导主语从句的连词有that, whether。 That he got the first prize excited him much. 他获得一等奖一事使他非常兴奋。 It is doubtful whether we can get there on time. 我们能否按时到达那儿还不确定。 1）that引导的主语从句：在从句中不作任何成分，也没有实际意义。一般情况 下that不可省略。 That light travels in straight lines is known to all. 众所周知，光沿直线传播。 That you don't like him is none of my business. 你不喜欢他不关我的事。 2）whether引导的主语从句：常置于句首，表示“是否”之意；

Whether he can finish his task on time is of great importance. 他是否能按时完成任务非常重要。 Whether you can succeed or not depends on how hard you work at it. 你能否成功取决于你努力的程度。 2.连接代词：在从句中起名词或代词的作用，常作从句的主语、宾语、表语或定语，有具 体意义且不能省略。常见的连接代词有who, whom, whose, what, which, whoever, whomever, whatever, whichever。 What we should do with the problem is undecided. 我们如何处理这个问题还未作出决定。（what引导主语从句，不表疑问意义） Whom the letter was from is still unknown.

高中英语名词性从句 which的用法

一、在名词从句中连接词which 有两种词性, 常用来引导宾语从句： 1. [连接代词] 哪个 1）用作从句的主语，如： He wanted to know which was on the table. 他想知道哪一个在桌子上。 2) 用作从句的宾语，如： He asked me which I liked best. 他问我最喜欢哪一个。 2. [连接形容词]放在名词前作定语，表示“哪个XX，哪些XX”，如： Do you wnow Which country is the largest? 你知道哪国家一个最大? Could tell me which children made him still more angry. 能告诉我那些 孩子使他更加生气了。 二、which 除引导上述宾语从句外，还可以引导主语从句和表语从句。 1. 主语从句(常用形式主语it) It was clear which children made him still more angry. 显而易见那些孩子使他更加生气了。 It is known to us which he liked best. 众所周知他最喜欢哪一个。 2. 表语从句 That was which children made him still more angry. 那就是那些孩子使他更加生气了。 This is which he liked best. 这就是他最喜欢哪一个。 三、which 与what 的区别 用在名词从句中，which 意思是“哪一个/那一些”，what 意思是“所...的”，后者等于“先行词+关系代词”，如你的补充问题就需要选择what： It's quite different from what I read last month. = It's quite different from (the one that) I read last month. 这本书与我上周所读过的那一本区别很大。 1.that在所有名词性从句中无成分无意义。 2.which强调哪一个，有一个选择的范围。 从句中from后边缺宾语，所以要选择的是宾语从句的引导词，首先that引导宾语从句时，不做介词宾语（除了in,except,but) 其次read后边缺宾语，也就是从句中缺成分，参见上面第一条，所以排除that.B选项which指哪一个，这里

英语定语从句用法总结

英语定语从句用法总结 定语从句，一个简单句跟在一名词或代词后关系代词的用法：1. 作主语用who, which和that, 如： He is the man who/that lives next door. The train which/that has just left is for Shenzhen. 2. 作宾语用whom, who, which, that, 如： The man we have just seen is a famous writer. Where is the book I bought last week? 注：在非正式文体中，用于指人的关系代词who whom, that 通常可以省略，但在正式文体中通常用whom, 不可省略;用于指物的关系代词which和that 在非正式文体中也通常省略，但在正式文体中一般不省略。 3. 作定语用whose, 如： It was a meeting whose importance I did not realize at that time. 注：“whose +名词中心词”这一结构在定语从句中既能作主语 He’s written a book the name of which I’ve completely forgotten. 4. 作表语只用that ，它既可以指人，也可以指物，但时常省略。如： He is no longer the man that he used to be.

This is no longer the dirty place we met yesterday. 3. why指原因或理由，它的先行词只有reason。如： That is the reason why he is leaving so soon. 注：why时常也可以省略。如： That is the real reason he did it. + which; where = in he arrived. The office where he works is on the third floor. This is the chief reason why we did it. 2. 当先行词是表时间的time, day等和表地点的place, house等时，一定要注意分析从句的结构，如果缺少主语或 宾语时，关系词应该用which或that, 缺少时间状语或地点 状语时，才能用when或where，试比较： I’ll never forget the day when my hometown was liberated. I’ll never forget the days which/that we spent together last summer. His father works in a factory where radio parts are made. His father works in a factory which/that makes radio parts. 3. when和where既可以引导限制性定语从句，也可以引导 非限制性定语从句。而why 只

定语从句用法讲解

高中定语从句详解与练习 （一）定义及相关术语 1．定语从句：修饰某一名词或代词的从句叫定语从句。定语从句一般紧跟在它所修饰的先行词之后。 2．先行词：被定语从句修饰的词叫先行词。 3．关系词：引导定语从句的词叫关系词。 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when, where, why等。 关系词通常有下列三个作用：A、引导定语从句；B、代替先行词；C、在定语从句中担当一个成分。例如： The man who is shaking hands with my father is a policeman. 该句中， who is shaking hands with my father 是定语从句，修饰先行词the man，“who”是引导定语从句的关系词，代替先行词the man，在定语从句中作主语。 （二）关系代词引导的定语从句 1．who 指人，在定语从句中作主语。 The boys who are playing football are from Class One. 正在踢足球的男孩是一班的。Those who want to go to the museum must be at the school gate at 7 tomorrow morning. 想 去博物馆的人必须在明晨7点到大门口集合。 Yesterday I helped an old man who had lost his way. 昨天我帮助了一位迷路的老人。That is the teacher who teaches us physics. 那就是教我们物理的老师。2．whom 指人，在定语从句中做宾语，常可省略。 Mr Liu is the person ( whom ) you talked about on the bus. 刘先生就是你们在公共汽车 上谈论的那个人。 Li Ming is just the boy ( whom ) I want to see. 李明正是我想要见的男孩。 The professor ( whom ) you are waiting for has come. 你正在等的教授已经来了。 The girl ( whom ) the teacher often praises is our monitor. 老师经常表扬的那个女孩是我 们的班长。 注意：关系代词whom 在口语或非正式文体中常可用who 来代替，也可省略。 The man ( whom / who )you met just now is my old friend. 3．Which 指物，在定语从句中做主语或宾语，做宾语时常可省略。 Football is a game which is liked by most boys. 足球是大多数男孩所喜欢的运动。 The factory which makes computers is far away from here. 制造计算机的那家公司离这儿很远。 He likes to read books which are written by foreign writers. 他喜欢外国作家写的书。 The house which is by the lake looks nice. 湖边的那幢房子看上去很漂亮。 This is the pen ( which ) he bought yesterday. 这是他昨天买的钢笔。 The film ( which ) they went to see last night was not interesting at all. 他们昨晚看的电影一点意思也没有。 4．That 指人时，相当于who 或whom；指物时，相当于which.。在定语从句中作主语或宾语，作宾语时常可省略。

定语从句用法总结

定语从句用法总结 一.定义：定语由一个句子来充当，那么这个句子就叫做定语从句。 eg: The old town has narrow streets and small houses that are built close to each other.其中划线部分为定语从句。 二.分类：分为限制性定语从句和非限制性定语从句，还有间隔性定语从句。 eg: is the school (that/which)we visited last year. （限制性定语从句） weather turned out to be very good,which was more than we could expect. （非限制性定语从句） days are gone when physical strength was all you needed to make a living.（间隔性定语从句） ] 注：定语从句和非限制性定语从句的区别 限制性定语从句无逗号隔开、不可缺少、起修饰限制作用；而非限制性定语从句有逗号隔开、可有可无、起补充说明作用。 三.构成：定语从句有先行词、引导词和从句构成。 先行词是定语从句所修饰限制的名词或代词。 引导词是用来引导定语从句的关系代词或关系副词。 eg: The old town has narrow streets and small houses that are built close to each other. 此句中先行词为：narrow streets and small houses, ( 引导词为：that，定语从句为：that are built close to each other 四．基本原则 定语从句中不能出现与先行词在意义上相一致的词 is the book that I like it best .(it 与book指同一物，所以要去掉。) 五．定语从句中常见考点：

名词性从句知识点总结

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(完整word版)英语定语从句用法详解

英语定语从句用法详解 在复合句中，修饰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，引导定语从句的有关系代词who, whom, whose, which, that等和关系副词where, when, why等，关系代词和关系副词在定语从句中担任句子成份。 1.由who引导的定语从句中，who用作主语，如：This is the boy who often helps me. 2.由whom引导的定语从句中，whom用作宾语，如：The man whom you are waiting for has gone home. 3.由whose引导的定语从句中，whose用作定语，如：Do you know the girl whose skirt is white? 4.由which引导的定语从句中，which用作主语或谓语动词的宾语或介词的宾语，如： The room in which there is a machine is a work shop. The river which is in front of my house is very clean. This is the pen which you want. 注意： (1)whom, which用作介词宾语时，介词可放在whom、which之前，也可放在从句原来的位置上；但在含有介词的动词固定词组中，介词只能放在原来的位置上。如：He is the very person whom we must take good care of. (2)引导非限制性定语从句时，必须用关系代词which，不用that,如：I have lost my bag, which I like very much. (3)关系代词在句中作主语时，从句的谓语动词的人称和数必须和先行词保持一致。 5.由that引导的定语从句中，that可以指人或物，在从句中作主语或谓语动词的宾语，但不能放在介词后面作介词宾语，如： The book that I bought yesterday was written by Lu Xun. 注意在下面几种情况下必须用that引导定语从句。 (1)先行词是不定代词all, few, little, much, something, nothing, anything等，如： All that we have to do is to practise English. (2)先行词被序数词或形容词最高级所修饰，如 The first letter that I got from him will be kept. (3)先行词被all, any, every, each, few, little, no, some等修饰，如 I've eaten up all the food that you gave me. (4)先行词被the only, the very, the same, the last修饰时如 He is the only person that I want to talk with. (5)先行词既有人又有物时，如: They talked about persons and things that they met. (6)当句中已有who时，为避免重复，如：Who is the man that is giving us the class? 6.由when, where, why引导的定语从句，如: I don't know the reason why he was late. This is the place where we have lived for 5 years. I'll never forget the day when I met Mr Li for the first time. 注意：先行词是表示地点时，如果从句的谓语动词是及物的，就用that(which)，如果从句的谓语动词是不及物的，就用where引导。This is the house Which /that he has lived in for 15 years.(Where he has lived for 15 year.)

英语语法名词性从句用法小结

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英语晚会将在哪里举行，还没有宣布。 it 作形式主语：有时为避免句子头重脚轻，常用形式主语it 代替主语从句作形式主语放 于句首，而把主语从句置于句末。 It is clear that he is innocent in the accident. 很明显，他在这场事故中是无辜的。 2. 宾语从句 在整个句子中用作宾语的从句叫宾语从句。 He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。 We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。 it 作形式宾语：在“主语+谓语+宾语+宾补”的句型中，如果宾语是从句的形式，则必须 用it 做形式宾语，把真正的宾语即宾语从句置于句末。 We found it impossible that the so much work will be finidhed in one day. 我们发现一天之内完成这项工作不可能。 3. 表语从句 在整个句子中用作表语的从句叫表语从句。 The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That is why he didn’t come t o the meeting.

定语从句用法归纳完整版

定语从句用法归纳标准化管理处编码[BBX968T-XBB8968-NNJ668-MM9N]

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名词性从句用法归纳

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