名词性从句用法详解文档
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）
所有的名词性从句的语序都是陈述句语序。
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；
if一般不引导主语从句。
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.
名词性从句超详细讲解] 【文字｜双语| 教程】▼引导名词性从句的连接词可分为三类：连词（5个）：that （本身无意义。引导单一的宾语从句时that常可省略，但引导主语从句、表语从句、同位语从句时that通常不被省略）whether,if （均表示“是否”表明从句内容的不确定性）as if ,as though （[1] 均表示“好像”，“似乎”）以上在从句中均不充当任何成分连接代词（10个）：what/ whatever, who/ whoever, whom/ whomever, whose/whosever, which/ whichever连接副词（7个）：when/ whenever, where/ wherever, how/ however, why不可省略的连词：1. 介词后的连词。2. 引导主语从句和同位语从句的连词不可省略。That she was chosen made us very happy.We heard the news that our team had won.3. 在从句中做成分的连词.比较whether与if 均为"是否"的意思。但在下列情况下，只可用whether：1. whether引导主语从句并在句首。 eg:Whether he can come to the party on time depends on the traffic.2. 引导表语从句。eg:The question is whether we can get in touch with her.3.whether从句作介词宾语。eg:I am thinking about whether I should quit my present job.4.if与whether都可以与or not 连用，但后面紧跟or not 时只能用whether。We didn't know whether or not she was ready.（此时只能用
英语语法：名词性从句语法讲解 时间：2016-10-08作者：来源：精品学习网 笔者在此就名词性从句中的几大易错点进行分析，希望对同学们有所帮助。 [关系代词和关系副词的误用] 例1 （2016·全国卷Ⅰ） My uncle is the owner of a restaurant close to that I live. 解析 that→where。本题考查宾语从句，引导词在从句中充当地点状语，所以将that改为where。 例2 （2015·全国卷Ⅱ） As natural architects， the Pueblo Indians figured out exactly thick the adobe walls needed to be to make the cycle work on most days. 解析 how。根据语境和空后的形容词thick可知应用how引导宾语从句，此处表示要弄清楚到底土坯房的墙需要“多”厚。故答案为how。 点拨若从句缺少主语、宾语、表语或定语，则考虑用关系代词；若从句缺少时间、地点、原因、方式等状语成分，则使用关系副词 （when/where/why/how）。 [if和whether的误用] 例3 He asked her the question if they can be friends. 解析 if→whether。question后为同位语从句，只能用whether来引导，故而将if改为whether。 例4 It doesn’t matter so much you will come or not. 解析考查主语从句。句意：你来还是不来，这不怎么重要。代词it作形式主语，真正的主语是whether引导的主语从句。 点拨在表达“是否”这一意思时，我们经常会用到whether和if，但以下几种情况只用whether不用if： 1. 在表语从句、主语从句、同位语从句中； 2. 在介词后的宾语从句中。如：It all depends on whether they will
what引导名词性从句的五种用法 一、用法归纳 1. 表示“……的东西或事情”： They’ve done what they can to help her. 他们已经尽力帮助了她。 He saves what he earns. 他赚多少，积蓄多少。 What Mary is is the secretary. 玛丽的职务是秘书。 2. 表示“……的人或的样子”： He is no longer what he was. 他已经不是以前的那个样子。 He is what is generally called a traitor. 他就是人们通常所说的叛徒。 Who is it that has made Fred what he is now? 是谁把弗雷德培养成现在这个样子的？ 3. 表示“……的数量或数目”： Our income is now double what it was ten years ago. 我们现在的收入是10年前的两倍。 The number of the students in our school is ten times what it was before liberation. 现在我校学生的数量是解放前的10倍。 4. 表示“……的时间”： After what seemed like hours he came out with a bitter smile. 似乎过了几个小时他才苦笑着出来。 The young girl was too frightened to speak, standing there for what seemed like hours. 小女孩吓得不敢说话，在那儿站了几个小时。 5. 表示“……的地方”： This is what they call Salt Lake City. 这就是他们称为盐湖城的地方。 In 1492, Columbus reached what is now called America. 1492年哥伦布到达了现在所称的美洲大陆。 二、用法说明 (1) 这样用的what相当于“先行词+关系代词”，所以其前不能有先行词： 你喜欢什么就拿什么吧。 正：You can have what you like. / You can have everything (that) you like. 误：You can have everything what you like. (2) 有时what 可用作限定词，其后修饰一个名词： 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。 (3) 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： 误：I gave him what book I had.
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。（宾语从句可省） That he likes you is very obvious. 很显然他喜欢你。（That引导主语从句不能省） 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。 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. whoever, whatever, whichever 等也可引导名词性从句，其意分别为“所…的一切事或东西”、“任何…的人”、““…的任可人或物”等。如： Whoever wants the book may have it. 任何人要这书都可拿去。 I’ll do whatever I can to help him. 我们将尽我们所能来挽救他。 注意以下受汉语意思影响而弄错的句子： 任何人来都欢迎。 误：Who comes will be welcome. / Anyone comes will be welcome. 正：Whoever comes will be welcome. / Anyone who comes will be welcome. 另外，它们也可引导让步状语从句，其意为“无论…”、“不管…”，其意相当于no matter who [what, which]。如： Whatever happens, you must be calm. 不管发生什么情况，你都必须镇静。(whatever = no matter what)
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 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.
名词性从句归纳 一、名词性从句概说、结构与功能 名词性从句是起名词作用的从句，其功能相当于名词词组，在复合句中可作主语、宾语、表语和同位语。与之对应的名词性从句分别为主语从句、宾语从句、表语从句和同位语从句。 二、主语从句 1、主语从句的类别 ●以从属连词that 引导的主语从句。（从句位于句首，that通常不省略） → That she will come to the conference has excited every one of us. ●以从属连词whether 引导的主语从句。（从句置于句首时一般不用if来代替whether） → Whether we’ll go outing depends on the weath er. ●以连接代词（what, whatever, who, whoever, which, whichever等词）引导的主语从句。 → Whoever will be in charge of the project hasn’t been decided yet. 【注】what 与that在引导主语从句时，what 不但起连接作用，而且还有具体意义，意为“所…的”，相当于the things that结构；而that则无词义。即如果从句中不缺少主语或宾语时，选择that，否则用what。 ●以连接副词（when，where, how, why 等词）引导的主语从句. → When the new road is open to traffic has not been made clear. 2、用it 作形式主语的主语从句 注：以下几种特殊情况必须用it作形式主语： ⑴ It is + adj. + that 从句 常见的形容词有：necessary，right，likely，wrong，important，certain，clear，obvious，strange 等。 → It is likely that there will be a snowstorm tomorrow. ⑵ It is + noun + that 从句 常接这种句型的名词有：a pity, a shame, good news, a fact, an honor, a wonder, no wonder 等。 → It is a pity that you didn’t attend the lecture [讲座] yesterday. ⑶It is + 过去分词
【英语】英语名词性从句解题技巧讲解及练习题(含答案) 一、初中英语名词性从句 1．_______ makes me feel worried is _______ singing stars are centered on by masses of teenagers today. A. What; what B. That; that C. What; that D. That; what 【答案】 C 【解析】【分析】句意：让我感到担忧的是，今天的歌星是以青少年为中心的。分析句子可知，主语从句中的谓语动词makes 缺少主语，主语从句中缺少宾语一般用what，因此选择 what 来引导主语从句；系动词 is 后面的表语从句句意完整，不缺少成分，因此选择 that 引导表语从句。分析选项可知C项符合题意，故选C。 【点评】考查名词性从句，本题涉及what引导的主语从句和that引导的表语从句的应用。 2．________ is known to us all that the old scientist, for ________ life was hard in the past, still works hard in his eighties. A. As; whose B. It; whose C. As; whom D. It; whom 【答案】 D 【解析】【分析】句意：我们都知道，那位老科学家，过去生活很艰苦，到了八十多岁还在努力工作。第一空it is known to us all that…是个固定句型，意为“众所周知…”；第二空为介词+关系代词引导的定语从句，先行词the old scientist指人，作介词for的宾语，只能用whom，故选D。 【点评】考查名词性从句和定语从句，本题涉及固定句式it is known to us all that…和whom引导的限制性定语从句。 3．Some people believe _______ has happened before or is happening now will repeat itself in the future. A. whatever B. whenever C. wherever D. no matter what 【答案】 A 【解析】【分析】句意：一些人认为之前发生的或现在正在发生的任何事情在将来都会重复发生。Whatever has happened before or is happening now是一个主语从句，whatever既引导起这个主语从句，也在句中做主语。BC项都属于副词的性质，都不能做主语，通常只能做状语；no matter what只能用来引导状语从句，故选A。 【点评】考查名词性从句，本题涉及"特殊疑问词+ever"引导的主语从句。 4． is even more important is the earth cooled down, water began to appear on its surface.
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） 所有的名词性从句的语序都是陈述句语序。 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； if一般不引导主语从句。 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。 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。 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
名词性从句 名词性从句是由if, whether, that 和各种疑问词充当连接词所引导的从句，其功同名词一样。 一．主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语和it引导强调句的比较 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。例如：
It is a pity that you didn't go to see the film. It doesn't interest me whether you succeed or not. It is in the morning that the murder took place. It is John that broke the window. 2. 用it 作形式主语的结构 (1) It is ＋名词＋从句 It is a fact that … 事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) it is ＋形容词＋从句 It is natural that… 很自然… It is strange that… 奇怪的是… (3) it is ＋不及物动词＋从句
It seems that… 似乎… It happened that… 碰巧… (4) it ＋过去分词＋从句 It is reported that… 据报道… It has been proved that… 已证实… 3. 主语从句不可位于句首的五种情况 (1) if 引导的主语从句不可居于复合句句首。 (2) It is said , (reported) …结构中的主语从句不可提前。例如： It is said that President Jingo will visit our school next week. (right) That President Jiang will visit our school next week is said. (wrong)
名词性从句用法归纳Mar 3, 2011 名词性从句包括主语从句，宾语从句，表语从句和同位语从句。它们的作用相当于名词，因此为名词性从句。 一. 主语从句 引导词：连词that, whether; 连接代词who / whoever，what / whatever，which ； 连接副词when, where, how, why。 1.That 1) That computers have changed our life is clear to everyone. = It’s clear to everyone that computers have changed our life. 2) That children must go to school is accepted by us all. = It’s accepted by us all that children must go to school. 3) That you are from Tangshan can be judged from your accent. = It can be judged from your accent that you are from Tangshan. 结论：that 无含义, 不做成分。 2. what 1）What I can’t understand is why he is often absent from school. 2）What parents say and do has a life-long effect on their children. (07 陕西) 3）What matters most in learning English is enough practice. (07 全国） 结论：what “所…的”，在从句中做成分。 3. whatever 1)Whatever was said here must be kept a secret. 2)Whatever David says sounds right to Helen. 3)Whatever I may do is supported by my parents. 4. whoever 1)Whoever works hard is respected by others. 2)Whoever breaks school rules will be punished.
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：
常见名词性从句最全总结 一、初中英语名词性从句 1．______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. Who 【答案】 D 【解析】【分析】句意：谁将负责这次会议还没有决定。______ will be in charge of the meeting是一个主语从句，从句中缺少主语，指人，故选D。 【点评】考查名词性从句，本题涉及who引导的主语从句。 2．It________that the road will be closed tomorrow for repairs. A. was announced B. has been announced C. had been announced D. would be announced 【答案】 B 【解析】【分析】本题考查动词的时态和语态。题干句子中that到句子结束是宾语从句，且从句动词用“will＋动词原形”表示将来，由此推断出空白处谓语动词应用现在的某种时态，在所给四个选项中，只有B项正确。 【点评】考查现在完成时的被动语态，其结构是have/has +been +done。需要注意宾语从句的时态。主句用现在时，从句所需的任何时态。 3．Has it been announced ______? A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off 【答案】 D 【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗？此处是when引导的主语从句，且要用陈述句语序，故选D。 【点评】考查名词性从句，it作形式主语，关系副词when引导的从句作真正的主语。 4．Located between the 16th and the 18th floor, ______ I call my “home” is more like a “bird's nest”. A. which B. that C. what D. where 【答案】 C 【解析】【分析】考查主语从句。What引导主语从句______ I call my “home”且 What在从句中充当call的宾语。故选C。 5．They lost their way in the forest, and ___ made matters worse was that night began to fall. A. it B. which C. that D. what
名词性从句知识点梳理及经典练习(超详细) 一、名词性从句 1． ---- Let's send him home. Do you know _________? ---- I have no idea. A. where does he live B. where he lives C. he where lives D. he lives where 【答案】 B 【解析】【分析】句意:----让我们把他送回家。你知道他住在哪里吗?----我不知道。宾语从句就是一个句子作动词或介词的宾语。宾语从句由特殊疑问句变来就用原来的疑问词作引导。在宾语从句中只能使用陈述句语序，不能用疑问句语序。所以选B。 2． is clear to the members of the committee is that the President will not give in to their demands. A. Who B. It C. As D. What 【答案】 D 【解析】【分析】句意：委员会成员清楚的是，总统不会向他们的要求让步。that the President will not give in to their demands.这个句子作表语； is clear to the members of the committee这是主语从句，这里缺少主语从句的连接词，并且连接词在句中作主语，it是代词，不是了；连接词，故排除B；as作主语时，是在定语从句中，故排除C；who指人，根据表语指的事情，不是人，故排除A；what在主语从句中可以作主语或宾语，指事，符合句意，故选D。 【点评】考查名词性从句，本题涉及what引导的主语从句。 3． is even more important is the earth cooled down, water began to appear on its surface. A. When; that; when B. What; whether; as C. What; that; as D. lt; whether; as 【答案】 C 【解析】【分析】这题考查从句的用法，第一空填what引导主语从句，在主语从句中what做主语，第二空填that引导表语从句，在表语从句中，as是引导时间状语从句，句意是：甚至更重要的是：随着地球的冷却，水开始出现在表面。选C。 4．In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question. A. focused; whether B. focused; if C. has focused; whether D. has focused; if 【答案】 C
名词性从句用法 一、概念 名词性从句，即指____________________ 的从句，它包括__________ 、__________ 、__________ 和__________ 。 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______只起______作用，及____________，也不____________，在______中可______，但引导其他名词性从句时通常______。如： I hope______ you enjoy your holiday. ______ he likes you is very obvious. 2.连接词______也不充当句子成分，但有自己的意思，表示“是否”；引导____________时，可换成______，但引导其他名词性从句时不能换成 if。 He asked ____________ I would show him the way. ______ it will do us harm remains to be seen. 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______ she wanted to leave. ______ we arrive doesn't matter. Tell me ______ one you like best. 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______we should carry out the plan. ______she’ll be back depends much on the weather. ______ he did it will remain a puzzle forever. 三、名词性从句的重要引导词 1.______可引导______从句、______从句和______从句，但不用于引导______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。
高中英语从句大全 一．名词性从句 起名词性作用的从句叫名词性从句英语当中其名词性作用的成分有主语，宾语，表语，同位语，当这些成分有一个句子来代替就构成了名词从句，主要有主语从句，宾语从句，表语从句，同位语从句。 1.表语从句 1.定义：用作表语的从句叫做表语从句。（be动词,四“变得”：become, get,turn，go；感官动词look,, smell,sound，taste，feel；及grow, turn out，appear，keep等） 引导表语从句的词有从属连词that、whether、as though(if)； 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 等； 关系副词when, where, why, how, however, whenever, wherever等。 可以接表语从句的连系动词由be, look, remain, seem等。 The trouble is that we are short of money. That is why stone walls are used instead of fences around New England fields. At that time, it seemed as if I couldn't think of the right word anyhow 2、由从属连词that，whether引导的表语从句。 that在引导表语从句时无词义，在口语中，间或可以省略。而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question，trouble，problem等。表语从句对主句主语进行说明、解释，使主语的内容具体化。 The trouble is that I have lost his address The question is whether they will be able to help us.问题是他们是否能帮我们。 The trouble is (that) she has lost his money. The question is whether we need more ice cream. The problem was that it was too valuable for everyday use. What she could not understand was that fewer and fewer students showed interest in her lessons. 3、由关系代词引导的表语从句。 关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever 等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。 The question is which of us should go. The problem was who could do the work.. That's what he is worrying about. That's what we should do. The problem is who we can get to replace her.问题是我们能找到谁去替换她呢。 The question is how he did it.问题是他是如何做此事的。 That was what she did this morning on reaching the attic.那就是她今晨上了阁楼干的。 4、由关系副词引导的表语从句。 Go and get your coat.