英语名词性从句
2023届高考英语语法名词性从句精讲之四大从句用法大全讲义
2023年高中英语语法名词性从句精讲之：四大从句用法大全主语从句主语从句的概念：如果一个句子在复合句中充当一个主语，那么这个句子就是主语从句。
主语从句通常由从属连词that，whether，if和连接代词what，who，which whatever，whoever以及连接副词how，when，where，why等词引导。
that在句中无词义，只起连接作用。
主语从句用法：1、主语从句的引导词：主语从句通常由连词that和whether、连接代词或连接副词以及关系代词型what引导：如：That he is still alive is a wonder. 他还活着，真是奇迹。
When we arrive doesn't matter. 什么时候到没有关系。
What we need is money. 我们需要的是钱。
What I want to know is this. 我想知道的就是这一点。
Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
2、主语从句与形式主语it：有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。
这分三种情况：(1)对于以连词that引导的主语从句，通常用形式主语代主语从句：如：It's a pity that he didn't come. 很遗憾他没来。
(2)对于以连接代词(副词)引导的主语从句，可以使用形式主语代主语从句，也可直接在句首使用主语从句：如：Whether they would support us was a problem. 他们是否会支持我们还是一个问题。
It was a problem whether they would support us. 他们是否会支持我们还是一个问题。
(3)对关系代词型what引导的主语从句，通常不用形式主语，总是主语从句放在句首：如：What we need is money. 我们需要的是钱。
名词性从句——高中英语语法
• (1)主语从句
• 就是在复合句中作主语的从句。主语从句常用that, whether, who, whom, whose, what, which, when, where, how, why, whatever, whoever等引导。如： • Whether he will be able to come remains a question. 他是否来还是问 题。 • That China is a great socialist country is well known. 众所周知，中国 是一个伟大的社会主义国家。 • 注：为避免头重脚轻，使句子平衡，常用it作形式主语，而将主语从句 后置。如上述第二例常说成： • It is well known that China is a great socialist country. • 但是，由连接代词what, whatever, whoever等引导的主语从句一般不 能用形式主语。如： • What he found surprised me greatly. 他的发现使我非常吃惊。 • Whoever is finished may rest. 凡是做完工的人都可以休息。
规律四：主语从句和宾语从句在适当的情况 下可以借助 “it” 而后置。
1.主语从句可以用it （作形式主语） 来替换成以下几种结构表达。 (A)It is clear/certain/likely /true/surprising that… （B）It is a pity/shame /good idea/no wonder that ...
名词性从句——
高中英语语法
在句子中起名词作用的句子叫名词性从句 (Noun Clauses）。 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、介词宾语等，因此根据它在句中不同的语法功能。名词性从句又可 分别称为主语从句、宾语从句、表语从句和同位语从句。 这几类从句用法复杂、学习难度较大，考生在考试中丢分现象严重。
高中英语语法总结名词性从句
名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
第一节知识点讲解顾名思义，主语从句在句子中作主语。
有时本身出现在主语的位置上，也有时出于句子结构的考虑退到句子的尾部，前面用形式主语it代替。
从句作主语时，谓语动词一般为单数形式。
如: What I saw was beyond any verbal description.That his hair was turning grey worried him a bit.Why the company denied the contract is still unknown.When and where the government will build a city square is under discussion.It is pretty annoying that a small part of the machine is missing.It remains to be seen whether the new novel will be well received.Tips: 主语从句的that绝对不能省去。
因为句子是不能做主语的，故用that引导。
若去掉则没有了主语，而宾语从句的that可省。
：That he is right is known to all of us.宾语从句：We all know (that) he is right.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。
高中英语语法名词性从句
名词性从句在句子中起名词作用的句子叫名词性从句(Noun Clauses）。
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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。
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。
被强调部分指人时也可用who/whom。
a) It is a pity that you didn’t go to see the film. 你不去看那场电影真可惜。
b) It doesn’t interest me whether you succeed or not.我对你成功与否不感兴趣。
c) It is in the morning that the murder took place.谋杀案是在早上发生的。
（强调句型）d) It is John that broke the window.是John打碎的窗户。
（强调句型）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…It appears that…似乎…(4) It ＋过去分词＋从句It is reported that…据报道…It has been proved that…已证实…It is said that…据说…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。
(完整版)英语名词性从句知识归纳
名词性从句知识归纳名词性从句是指在句子中相当于名词的从句，主要包括主语从句、宾语从句、表语从句和同位语从句。
名词性从句不是修饰性从句，而是复合句中的主干。
e.g. That the boy failed again in the exam disappointed his mother. （主语从句）I know that he is writing his composition in his room. （宾语从句）The question is how we can finish it on time. （表语从句）The fact that some Chinese are still poor is really a great problem. （同位语从句）一、宾语从句---及物动词、介词、部分形容词（certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等）后e.g. I believe (that) he is honest. (that不充当从句内的任何成分，一般情况可省略)I’m glad that you are satisfied with your job. (that不充当从句内的任何成分)He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分) Please tell me what you want. (what充当从句内的宾语)She always thinks of how she can work well.(how充当从句内的状语)I don’t believe whatever he said. (whatever充当从句内的宾语，意为“任何事”)I’ll take whoever wants to go. (whoever从当从句内的主语，意为“任何人”)【宾语从句要点拓展】1. that引导宾语从句时一般可以省略，若由and或or连接两个宾语从句时，第一个从句中的that可以省略，而第二个分句前的that不可省略。
高中英语名词性从句语法讲解
This is how they overcome the difficulties.
My strongest memory is when I attended an
American wedding.
5. 其他连词as if, because, as, as though 引导的表语从句
C．表示某种状态的：remain, keep, prove, continue, stay等.
1. that 引导的表语从句 that 仅起连接作用，无意义，在句中不作任何成分， 通常不可省略。这种从句往往是对主句主语的内容起 进一步解释的作用。
e.g. The chance is that one smoker in four will die from
think等变为否定形式;
e.g. I don’t think you are right．
(5) 在think，believe，imagine，suppose，guess，hope
等动词以及 I’m afraid 等后，可用so代替一个一定的
宾语从句，还可用not代替一个否定的宾语从句：
e.g. 一Do you believe it will clear up你认为天气会转晴吗
连接副词：when, where, how, why 连接代词和连接副词一般做句子的某一成份
The Subject Clause
用作主语的从句叫主语从句。引导主语从句的 连接词有：
连词that, whether；
连接代词what, whatever, who, whoever, whom, whomever, whose, which,
高中英语语法-名词性从句精讲(共73张PPT)
Whoever wants the book may have it. I’ll do whatever I can to help him. Buy whichever is cheapest.
连接副词 when, where, how, why
when • When they will start is unknown yet. where • Where she has gone is a mystery. how • How this happened is not clear. why • Why he did that wasn’t quite unclear.
主语从句关联词 连词 that, whether 连接代词 what, who, whom, which 连接副词 when, where, how, why
连词 that, whether
只起连接作用 在从句中不充当任何句子成分
• That he will win is certain.
• It has been reported that sales of beef in China will increase.
宾语从句关联词 连词 that, whether; if 连接代词 what, who, whom, whose, which 连接副词 when, where, how, why
• I doubt _______ he will come soon. • I do not doubt _____ he will come soon. • Do you doubt _____ he will come soon?
• what surprised me was what he said.
高考英语名词性从句考点归纳
名词性从句名词性从句指在复合句中起名词作用的从句，它在句子中可作主语、宾语、表语或同位语。
名词性从句既是中学英语教学的重点，也是高考考查的热点。
一、名词性从句的分类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。
其连接词有that, if, whether；连接代词who, what, which；连接副词when, where, how, why等。
考查热点一：对主语从句的考查主语从句在复合句中充当主语，它可以放在主句谓语动词之前。
但为了保持句子平衡，多数情况下可用it作形式主语，而把主语从句置于句尾。
考查热点二：对宾语从句的考查宾语从句在句子中作及物动词或介词的宾语。
如果主句的谓语动词是及物动make, find, see, think等，则把宾语从句置于宾语补足语之后，用it作形式宾语。
另外，某些作表语的形容词，如sure, happy, glad, certain 等之后也可以带宾语从句。
考查热点三：对表语从句的考查表语从句在句子中作表语，位于主句中的系动词之后。
一、什么是表语（predicative）在形式上，位于系动词后的就是表语。
从含义上讲，表语是回答主语“是什么”或“怎么样”的语法成分。
即是指“是”字句“是”字后面的成分。
表语就是起表述作用的句子成分。
它修饰的是主语。
表语是用来说明主语的身份、性质、品性、特征和状态的。
表语须和连系动词一起构成句子的复合谓语。
表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、动词的-ed、从句来充当，它常位于连系动词（be, become, appear, seem等）之后。
Albert Einstein was a famous professor of physics.二、不定式、动名词与分词作表语的区别不定式和动名词作表语相当于一个名词作表语，含义是回答主语“是什么”；分词作表语相当于形容词作表语，含义是回答主语“怎么样”。
高中英语语法-名词性从句
名词性从句名词性从句的功能相当于名词词组。
在句中作主语；宾语；表语和同位语。
因此，主语从句；宾语从句；表语从句和同位语从句通称为名词性从句。
第一节主语从句引导主语从句的连接词有：that, whether, who, which, what, when, where, how, why等。
That she was invited to the ball made her very happy.Whether he will come to the ball has nothing to do with me.Whoever wants to see the film may get a ticket free.Which team will win the match is still unknown.What interests you doesn’t interest him.Where they had stayed was still unknown.When they will have a meeting hasn’t been decided.注意：1从句作主语谓语动词用第三人称单数形式。
Who will go is not important.2为了调节句子平衡，常用it作形式主语。
It is a pity that he didn’t come yesterday.It’s necessary that every League member (should) take the lead and work well.It’s suggested that a modern hotel (should) be put up at the foot of the hill.3陈述句部分的主语是从句时，其反意疑问句部分的主语用it.How he became a scientist is known to us all, isn’t it?主语从句习题1.________ makes mistakes must correct them.A. WhatB. ThatC. WhoeverD. Whatever2. It worried her a bit ____ her hair was turning grey.A. whileB. thatC. ifD. for3.When and why he came here ________ yet.A. is not knownB. are not knownC. has not knownD. have not known4. ________ is no reason for dismissing her.A. Because she was a few minutes lateB. Owing to a few minutes lateC. The fact that she was a few minutes lateD. Being a few minutes late5. ________ Tom liked to eat was different from ________.A. That…that you had expectedB. What …that you had expectedC. That…what you had expectedD. What…what you had expected6.________ we go swimming every day ________ us a lot of good.A. If...doB. That...doC. If...doesD. That...does7.It ________ Bob drives badly.A. thinks thatB. is thought whatC. thought thatD. is thought that8.It's uncertain ________ the experiment is worth doing.A. ifB. thatC. whetherD. how9.________ the boy didn't take medicine made his mother angry.A. ThatB. WhatC. HowD. Which10.____ we can't get seems better than ____ we have.A. What, whatB. What, thatC. That, thatD. That, what11.____ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether12..____ we'll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where13._________is going to do the job will be decided by the Party committee.A. ThatB. WhyC. HowD. Who14._______we'll finish translating the book depends on the time.A. WhenB. WhyC. WhatD. That15.______he won't go there is clear to all of us.A. HowB. WhatC. WhyD. This[参考答案] 1-10 CBACD DDCAA 11-20 CBDAC BDCAC第二节宾语从句作动词、介词或形容词宾语的从句。
高中英语语法知识之名词性从句
名词性从句相关概念名词性从句：在复合句中起名词的从句叫做名词性从句。
包括：主语从句、宾语从句、表语从句、同位语从句。
名词性从句引导词：●连接词 that引导名词性从句时，只起连接作用，没有任何意思，也不充当句子成分。
I hope (that) you enjoy your holiday.That he likes you is very obvious.●连接词 whether, if引导名词性从句时，不充当句子成分，但有自己的意思，表示“是否”He asked whether [if] I would show him the way.Whether it will do us harm remains to be seen.●连接代词 who, whom, whose, which, what, whatever, whoever, whomever, whichever引导名词性从句时，均有各自的意义，在从句中作主语、宾语、定语等。
如：Who broke the glass yesterday is not clear.She will give whoever needs help a warm support.●连接副词 when, where, why, how, however, whenever, wherever引导名词性从句，也各自有自己的意义，在从句中作状语。
The question is how we should carry out the plan.When she’ll be back depends much on the weather.宾语从句★位置：A. 作动词宾语He has informed me when they are to discuss the work plan.注意：doubt（怀疑）的肯定句接if/ whether引导的宾语从句，但否定句和疑问句接that引导的宾语从句。
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名词性从句 在句子中起名词作用的句子叫名词从句 (Noun Clauses）。 名词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、介词宾语等，因此根据它在句中不同的语法功能，名词从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。 引导名词性从句的引导词 引导名词性从句的连接词可分为三类： 连接词：that,whether,if 不充当从句的任何成分） 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, 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. 比较：whether与if 均为"是否"的意思。 但在下列情况下，whether 不能被if 取代： 1. whether引导主语从句并在句首 2. 引导表语从句 3. whether从句作介词宾语 4. 从句后有"or not" Whether he will come is not clear.
大部分连接词引导的主语从句都可以置于句末，用 it充当形式主语。 It is not important who will go. It is still unknown which team will win the match. 名词性that-从句 1）由从属连词that引导的从句叫做名词性that-从句。 That只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语，例如： 主语：That he is still alive is sheer luck. 他还活着全靠运气。 宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。 表语：The fact is that he has not been seen recently. 事实是近来谁也没有见过他。 同位语：The fact that he has not been seen recently disturbs everyone in his office. 近来谁也没有见过他，这一事实令办公室所有的人不安。 形容词宾语：I am glad that you are satisfied with your job. 你对工作满意我感到很高兴。
2）That-从句作主语通常用it作先行词，而将that-从句置于句末，例如： 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's a pity that you should have to leave. 你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系： a. It + be +形容词+ that-从句 It is necessary that… 有必要…… It is important that… 重要的是…… It is obvious that… 很明显……
b. It + be + -ed 分词+ that-从句 It is believed that… 人们相信…… It is known to all that… 从所周知…… It has been decided that… 已决定……
c. It + be +名词+ that-从句 It is common knowledge that… ……是常识 It is a surprise that… 令人惊奇的是…… It is a fact that… 事实是……
d. It +不及物动词+ that-分句 It appears that… 似乎…… It happens that… 碰巧…… It occurred to me that… 我突然想起…… 名词性wh-从句 1）由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。Wh-从句的语法功能除了和that-从句一样外，还可充当介词宾语、宾语补语和间接宾语等，例如：
主语： How the book will sell depends on its author. 书销售如何取决于作者本人。
直接宾语：In one's own home one can do what one likes. 在自己家里可以随心所欲。
间接宾语：The club will give whoever wins a prize. 俱乐部将给得胜者设奖。
表语： My question is who will take over president of the Foundation. 我的问题是谁将接任该基金会主席职位。
宾语补足语：She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。 同位语： I have no idea when he will return. 我不知道他什么时候回来。
形容词宾语：I'm not sure why she refused their invitation. 我尚不能肯定她为什么拒绝他们的邀请。
介词宾语： That depends on where we shall go. 那取决于我们去哪儿。
2）Wh-从句作主语也常用先行词it做形式主语，而将wh-从句置于句末，例如： It is not yet decided who will do that job. 还没决定谁做这项工作。 It remains unknown when they are going to get married. 他们何时结婚依然不明。
if, whether引导的名词从句 1）yes-no型疑问从句 从属连词if, whether引导的名词从句是由一般疑问句或选择疑问转化而来的，因此也分别被称为yes-no型疑问句从句和选择型疑问从句，其功能和wh-从句的功能相同， 例如： 主语：Whether the plan is feasible remains to be proved. 这一计划是否可行还有等证实。
宾语：Let us know whether / if you can finish the article before Friday. 请让我们知道你是否能在星期五以前把文章写完。
表语：The point is whether we should lend him the money. 问题在于我们是否应该借钱给他。
同位语：They are investigating the question whether the man is trustworthy. 他们调查他是否值得信赖。
形容词宾语： She's doubtful whether we shall be able to come. 她怀疑我们是否能够前来。
介词宾语： I worry about whether he can pass through the crisis of his illness. 我担心他是否能度过疾病的危险期。
2）选择性疑问从句 选择性疑问从句由关联词if/whether…or或whethe…or not构成，例如： Please tell me whether / if they are Swedish or Danish. 请告诉我他们是瑞典人还是丹麦人。 I don't care whether you like the plan or not.我不在乎你是否喜欢该计划。 否定转移 1) 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，即主句的谓语动词用否定式，而从句的谓语动词用肯定式。 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：若谓语动词为hope,宾语从句中的否定词不能转移。 I hope you weren't ill. 我想你没有生病吧。
2) 将seem, appear 等后的从句的否定转移到前面。 It doesn't seem that they know where to go. 看来他们不知道往哪去。 It doesn't appear that we'll have a sunny day tomorrow. 看来我们明天不会碰上好天气。
3) 有时将动名词，介词短语或整个从句的否定转变为对谓语动词的否定。 I don't remember having ever seen such a man. 我记得从未见过这样一个人。 (not否定动名词短语 having…) It's not a place where anyone would expect to see strange characters on the street. 在这里，人们不会想到在街上会碰上陌生的人。 (anyone 作主语，从句中的谓语动词不能用否定形式。)
4) 有时状语或状语从句中否定可以转移到谓语动词前。 The ant is not gathering this for itself alone. (否定状语) 蚂蚁不只是为自己采食。
He was not ready to believe something just because Aristotle said so. (否定because状语) 他并不因亚里斯多德说过如何如何，就轻信此事。
She had not been married many weeks when that man's younger brother saw her and was struck by her beauty. (否定状语many weeks) 她结婚还不到几个月，这个人的弟弟就看见她了，并对她的美貌着了迷。