高中英语语法——名词性从句
一般疑问句变名词性从句 –宾/表/同位语从句
原则 一般疑问句变成陈述句，并且用whether或if来引导。
II. 宾语从句 我不清楚他是否需要我的帮助。 I don’t know if/whether he needs my help. III. 表语从句 我关心的是他到底来不来。 My concern is whether he comes or not. IV. 同位语从句 他们面临是否该继续干下去这个问题。 They are faced with the problem whether they should
Φ 如果我们把句子当做名词来用，分别在另一个句子
中作主语、宾语、表语和同位语（见上表第二列），于 是构成了四种从句：主语从句、宾语从句、表语从句和 同位语从句。
Φ 因为这四种从句在本质上相当于名词的作用，所以
我们把它们统称为名词性从句。
名词性从句–三种句子
¤ That the earth is round is a fact. ¤ My question is whether people will live on
is a serious matter. That the little baby survived under such bad
conditions was a miracle.
陈述句变名词性从句– 宾语从句
原则 在陈述句句首加上that，然后把“that+陈述句”这一结构
分别放在另一个句子的四种位置即构成了四种名词从句。
Whether they would support us...
(3) ( )还是一个问题
Whether they would support us is/remains a question.
It is/remains a question whether they would support us.
forecast等。
常见的主语从句句型 – it作形式主语
It is +形容词+that从句： • It is clear that… 显然。。。 • It is possible/ likely that… 很可能。。。 • It is natural that… 很自然。。。 • It is certain that… 可以相信。。。 • It is strange that… 奇怪的是。。。 • It is fortunate that… 幸运的是。。。 • It is necessary that… 有必要的是。。。
is
tha-t---t-h--e---e--a--r--t-h
The magazine, National
Gc--o-e-m-o--gm --raopnhkyn,otwel-ll-es--d-u-g-s-e--t.-h--e----
名词性从句–四种成分
Φ 在英文中，名词或名词短语主要充当四种成分：主语 、宾语、表语和同位语（见上表第一列）。
地球是圆的，这是真理。
That the earth is round is a truth.
it作形式主语
为避免头重脚轻，常常用it作形式主语置于句首，而将主语 从句放在句尾。
很显然他不懂英语。 It is obvious that he doesn’t understand English. 月球本身不发光这是一个常识。 It is common knowledge that the moon itself does not give off light.
我认为你是对的。 I think (that) you are right. 我们知道地球是圆的。 We know (that) the earth is round. 我认为扎实的语法功底对英文写作很重要。 I think (that) a sound knowledge of grammar is essential to good writing.
练习时间^_^
将下列句子改写成it作主语的句子 That smoking can cause cancer is true. That Lucy failed his English exam was a shame. That he has been late for work over and over again
continue to work.
一般疑问句变名词性从句 –if 还是whether?
(1) if 一般只用于引导宾语从句，而whether可引导包括宾语从 句在内的其他名词从句
(2) 当出现… or not时，一般只用whether…or not，而不用if
填空： a. ( ) he comes or not makes no difference. b. The question is ( ) he will come. c. I don’t care ( ) he is handsome. d. The question ( ) we should call in a specialist was
answered by the family doctor. 答案: Whether: a. b. d if: c
练习时间^_^
将括号里的疑问词变成名词性从句 ______ remains uncertain. (Shall we have the match?) I wonder _______.(Should we wait for him?) No one knows exactly ______.(Is there life on other
复合句
Trihdaictu--t-lh-o-e-u--se--.a--r--t-h---i-s---r-o--u--nd is
He told me tha-t--t--h--e---e--a--r-t--h i--s--r--o--u- nd.
My theory i--s--r--o--u- nd.
地球是圆的，这是真理。
It is a truth that the earth is round.
你没通过这次考试真遗憾。
It is a shame/pity that you did not pass the test.
常见的主语从句句型 – it作形式主语
It is +过去分词+that从句： • It’s reported that… 据报道。。。 • It’s believed that… 人们相信。。。 • It’s generally thought that… 人们普遍认为。。。 • It should be noted that… 应当注意。。。 • It has been found that… 现已发现。。。 • It must be pointed out that… 必须指出。。。 • 同样可以这么用的词有: say, expect, know, estimate,
planets?) My question is ______.(Do we have enough time to go
the moon someday. ¤ Scientists have argued over the question
whether there is life on other planets. ¤ I don’t know how many letters there are in
the English alphabet.
常见的主语从句句型 – it作形式主语
It is +名词短语+that从句：a pity, a shame, an honor, a good idea, no wonder, etc.
• It is a pity that… 可惜的是。。。 • It is a fact that… 事实是。。。 • It is good news that… 。。。真是太好了。 • It is a good thing that… 。。。真是件好事。 • It is no wonder that… 难怪。。。 • It is a shame that… 遗憾的是；。。。真是太不像话了 • It is an honor that… 真荣幸。。。 • It is common knowledge that… 。。。是常识。 • It is my belief that… 我相信。。。 • It is a miracle that… 。。。真是奇迹。
陈述句变名词性从句– 表语从句
原则 在陈述句句首加上that，然后把“that+陈述句”这一结构
分别放在另一个句子的四种位置即构成了四种名词从句。
我认为这个孩子应该送到学校去上学。 My idea is that the child should be sent to school. 困难在于我们缺乏资金。 The trouble is that we are short of funds.
¤ Scientists have argued over the question whether there is life on other planets. (Is there life on other planets?)
¤ I don’t know how many letters there are in the English alphabet. (How many letters are there in the English alphabet?)
陈述句变名词性从句– 宾语从句
在陈述句句首加上that，然后把“that+陈述句”这一结构 分别放在另一个句子的四种位置即构成了四种名词从句。
他实验取得成功，这让大家很高兴。 The fact that he succeeded in the experiment pleased everybody. 有人曾谣传Tom是小偷，结果证明是不对的。 The rumor that Tom was a thief turned out to be untrue. 她到处散布谣言说他犯有盗窃罪。 She spread the lie everywhere that he was guilty of theft.
高中英语语法讲义——名词性从句(主从、表从、宾从,同从)
高中英语语法讲义---- 名词性从句（主从、表从、宾从，同从）1，陈述句做名从用连词that + SV, that 表主句肯定从句完整，不做成分。
主从可用it 做形式主语，宾从第一个that 可省略。
You study hard.主从：That you study hard is known to us.= It is known to us that you study hard.表从：My opinion is that you study hard .宾从：I think (that) you study hard. …and that (不能省略)….同从：My opinion that you study hard is known to us. *比较同从和主从！●一般抽象名词后对其进行解释和说明的完整句子就是其同位语从句，不完整就是定语从句。
I appreciate your idea that we have an exam every week. （that后完整—同从）I appreciate your idea that you came up with last time.（that后不完整---定从）2，一般问句做名从用连词whether(是否) + SV，whether表主句不肯定从句完整，宾从中可用if（介词后或宾从后有or not时只用whether）。
Does your friend like English ?主从：Whether your friend likes English isn’t clear .=It isn’t clear whether your friend likes English.表从：My question is whether your friend likes English.宾从：I don’t know whether/ if your friend likes English.同从：My question whether your friend likes English isn’t clear.3, 特殊问句做名从用疑问词（连词）+ SV, 疑问词做主语时直接+谓语。
高考英语语法之名词性从句
1.名词：表示人或事物的名称的词叫名词。 2.名词的句法作用：名词在句中主要作主语、宾 语、表语和同位语。另外还可以作定语、状语。 3.名词性从句： 在英语的句子结构中，本来该由名词充当的主 语、宾语、表语和同位语，由一个句子来充当， 这个句子就叫名词性从句。 4.名词性从句的种类： 根据名词性从句在句子中所充当的不同成分， 名词性从句可以分为主语从句、宾语从句、表 语从句和同位语从句。
2.When he will go to America is not yet fixed.
(It is not yet fixed when he will go to America.)
宾语从句
在复合句中作主句的宾语.引导 词有连词that (that 常可省 略),whether,if; 代词有who, whose,what ,which
表语从句
在复合句中作主句的表语. 引导词有连词that (that 不可 省),whether; 代词有who, what ,which;
副词 when ,where, how, why
等.
The problem is that we didn’t get in touch with him.
This is how Henry solved the problem. His suggestion is that we (should) finish the work at once.
(4).It is not yet decided which cash crop will be produced next year. (5).Whatever he said was right.
(6).Whoever goes there must get ready by 6 o’clock.
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。
(完整版)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。
主语从句： 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_2
表语 同位语
名词性从句的定义及种类 1. 定义: 在句子中起名词作用的各种从句，统称为名词性从句。 2. 种类: 根据它们在句中所充当的句子成分，可以分为主语从 句、宾语从句、表语从句和同位语从句。
请判断以下哪几句为名词性从句
1.Whether we will go for an outing tomorrow remains unknown. 主语从句 2.The question is when he can arrive at the hotel. 表语从句 3.It was Mary that helped me solve the problem. 强调句 4.Whoever breaks the law will be punished. 主语从句
1. 从属连词: that, if, whether
that: 无词义、不充当从句中的成分，引导第一个宾语从句可省略。 if: 表是否，不充当从句中的成分，引导宾语从句，不可省略。 whether: 表是否，不充当从句中的成分，引导名词性从句，不可省略。
1.__T_h__a_t __we will realize our dreams in the future is certain. 2.The fact is __t_h_a_t_ the Earth goes around the Sun. 3.__W__h_e_t_h_e_rshe will come back on time depends on weather. 4.I asked him __i_f/__w_h_e_t_h_e_r he could do me a favor. 5.Could you tell me the question _w__h_e_t_h_e_r English is useful for us now? 6.Word came ___t_h_a_t_ his son was admitted to Beijing University. 7.The christian Church rejected his theory, saying ___(_th_a_t_)__ it was against God's idea and ___t_h_a_t_ people who supported it would be attacked.
高中英语语法---名词性从句详解
名词性从句详解名词性从句包括主语从句、表语从句、宾语从句、同位语从句。
其关联词有连接词that，if，whether；疑问代词who，what，which和疑问副词when，where，how，why等。
一.语法讲解1.主语从句主语从句在句中做主语。
它可以放在主句谓语动词之前，但多数情况由it作形式主语，而把主语从句放在主句之后。
例如：Who did that is known to all.It is interesting that you should like him.2.表语从句表语从句在句中作表语，位于主句中的系动词之后。
如：The question is who can complete the difficult task.表语从句不能用if引导，但可用as if引导。
例如：He looked as if he was going to cry．3.同位语从句同位语从句跟在名词后面，进一步说明该名词的具体内容。
引导同位语从句的名词主要有fact，news，promise，idea，truth等。
连接词用that（不用which），及连接副词how，when，where，why等。
例如：His delay is due to the fact that the car went wrong halfway．The news that our team has won the match is true.She asked the reason why there was a delay．4.宾语从句1.宾语从句在句中作及物动词或介词的宾语。
例如：We can learn what we did not know．He will talk to us about what he saw in the U.S.如果主句的谓语动词是及物动词make，find，see，hear等，则把宾语从句置于宾语补足语之后，用it作为形式宾语。
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——名词性从句
①that 引导同位语从句时，是连词，不作成分，只起连接作用，that不能省。 that 引导定语从句时, 是关系代词,作主语或宾语。作宾语时常可以省略。 ②定语从句的先行词可以是任何名词或代词；同位语从句前面的名词必须是 抽象名词，常考的有消息(news/ word/ information/ message)、事实(fact/ truth)、 观点(opinion/ view/ thought/ idea/ belief)、希望(hope/ wish)、问题(question/ problem/ doubt)、请求(request/ requirement/ demand/ desire)、建议(advice/ suggestion/ recommendation/ proposal)、承诺(promise)等。
who/ whoever的区分 whoever强调的是人，who表示疑问谁
_W__h_o_e_v_e_r__ could solve the problem will be rewarded. __W__h_o_____ will solve the proble is unknown. __W__h_o_e_v_e_r_ breaks the law, he will be punished.
高中英语语法--名词性从句专项讲解及训练
名词性从句名词性从句一．概述：在句子中起名词作用的各种从句统称为名词性从句。
根据它们在句中的语法作用，这类从句又可分为主语从句、表语从句、宾语从句和同位语从句。
四．if, whether的区别1.引导主语从句时，如果主语从句放在句首，只能用whether不能用if引导，但是如果用it 做形式主语，而把主语从句放在句末时，也可以用if引导.2.引导宾语从句时常放在动词know, ask, care, wonder之后，if和whether均可。
3.在介词后面的宾语从句中，在表语从句、同位语从句中，表“是否”，只能用whether；4.whether和if都可以和or not连用,但是whether 之后可以直接跟or not,而if不可以。
I don’t know whether or not I will stay.（只能用whether）5.在不定式前只能用whether.如：I can’t decide whether to stay. 我不能决定是否留下。
五．与“命令、要求、建议”等相关的名词性从句中通常用虚拟语气，虚拟语气的构成是“should＋动词原形”或省去should，直接用动词原形。
六．名词性从句以考查引导词为主，同时考查时态，语序，与其它从句的区别以及混同虚拟语气的考查。
一．主语从句1.主语从句定义：在复合句中充当主语的句子叫做主语从句。
That he will succeed is certain.Whether wild life can be well protected is of great importance.Who will go makes no different.Which kind of food is the best is still not certain.What is needed for the space trip is careful preparation.How we can help the twins will be discussed at the meeting.When they’ll start the project has not been decided yet.Where he hid the money is to be found out.Why dinosaurs died out remains a puzzle.2.主语从句引导词按照在句中是否做成分主要分为三类：连词that、whether、if 连接代词、连接副词。
高中英语语法--名词性从句
名词性从句一、名词性从句的语法功能与分类在复合句中起名词作用的从句叫名词性从句(Noun Clauses)。
名词性从句的功能相当于名词或名词词组, 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。
主语从句：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。
1) What he is going to do is not clear.2) Who will be our monitor hasn’t been decided yet.宾语从句：如果一个句子在复合句中用作宾语，那么这个句子就叫做宾语从句。
1) Jack said that he had something important to do.2) I want to know if/whether there is a train to Beijing.表语从句：如果一个句子在复合句中用作表语，那么这个句子就叫做表语从句。
The trouble is that I have lost his address.同位语从句：用作同位语的从句叫做同位语从句。
一般情况下同位语从句跟在某些名词，如news，idea，fact，word（消息），question，thought，doubt，order，promise，hope，message，information等的后面，用以说明该名词所表达的具体内容。
关联词多用从属连词that。
1) They were all very much worried over the fact that you were sick.2) Where did you get the idea that I could not come?3) Early in the day came the news that Germany had declared war on Russia.【注意】that引导的同位语从句与定语从句的区别☆定语从句是修饰限制它前面的名词，因此，它是属于形容词性从句。