高考英语三大从句是哪些，你分得清吗
1. 名词性从句：在句子中起名词性作用，如主语从句，表语从句，宾语从句，同位语从句。 2. 定语从句：在复合句中起定语作用，修饰名词或名词性短语等名词性结构。 3. 状语从句：在复合句中起状语作用，一般由连接词引导，修饰动词、形容词或副词。英语从句 其作用 其实就相当于一个单词 名词性从句 相当于一个名词 定语从句相当于一个形容词 状语从句相当于一个副词 根据 从句在整个句子中 所起的作用 来判断 是什么从句 如 the man that told me the news that i passed the exam was so kind that i wanted to thank him. 这句话的主语 是the man 谓语是 was so kind 那个人非常好 that told me the news that i passed the exam 这是定语从句 他告诉我 我考试通过了的消息在这个定语从句中 又包含了 一个 名词性从句 作同位语 即同位语从句that i passed the exam that i wanted to thank him这是结果状语从句 我想感谢他
名词性从句知识点总结是什么?
名词性从句知识点总结：
1、名词性从句总是用陈述句词序，则不能使用疑问句词序，尤其是当名词性从句由“疑问词”引导时，不能受疑问句的影响而误用疑问句词序。
2、由于由when引导的时间状语从句和以if引导的条件状语从句要用现在时表示将来意义，而不能直接使用将来时态，所以许多同学容易受此影响在when和if引导名词性从句时也用现在时表示将来意义。
3、当一个句子有两个或多个并列的宾语从句时，引导第二和以后几个从句的that不可省略。
4、由it作形式宾语时，that引导的宾语从句中，that不可以省略。
5、Wh-ever既可引导名词性从句，又可引导让步状语从句；而nomatterwh-只能引导让步状语从句。
6、引导名词性从句的连接词：that，whether，if，what，whatever，who，whoever，whom，whose，which，when，where，how，why。
主语从句
1、引导词：主语从句就是在复合句中用作主语的从句，引导主语从句的引导词主要有三类：一是that；二是whether；三是那些可以用作疑问词的词语，如what， who， which， when，where， how， why等。
如：That we shall be late is certain. 我们要晚了，这是确定无疑的。
What he says is not important. 他说的话并不重要。
How this happened is not clear to anyone. 这件事怎样发生的，谁也不清楚。
Which side wins makes no difference to him. 哪边赢他都无所谓。
Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。
2、形式主语：有时为了避免句子显得“头重脚轻”，可用it作形式主语放在句首，而把真正的主语放在句末。
如：It’s a pity that he didn’t come. 很遗憾他没来。
It’s not yet known what she did. 她做什么还不得而知。
It was uncertain whether he could come or not. 他是否会来还不肯定。
这三句句首的it均为形式主语，相应的，真主语分别是that he didn’t come / what she did / whether he could come or not。
高考英语语法:高中英语语法-名词性从句
《高中英语语法-名词性从句》由英语我整理,更多请访问:。本内容整理时间为05月12日，如有任何问题请联系我们。
名词性从句
名词性从句相当于名词,可分别作主句的主语、表语、宾语和同位语。因此,名词性从句厅分为主语从句、表语从句、宾语从句和同位从句。
(一)引导名词性从句的连接词
1、连接代词:who, whose, whom, what, which。有词义,在从句中担任成分,如主语、表语、宾语、或定语等。
2、连接副词:when, where, why, how。有词义,在从句中担任成分,作状语。
3、连接词:that, whether, if, as if。that 无词义,在从句中不担任成分,有时可省略;if (whether), as if虽有词义,但在从句中不担任成分。
注意:连接代词与连接副词在句中不再是疑问句,因而从句中谓语不用疑问式。连接代词与连接副词在从句充当句子成分,连接词whether 和if(是否),as if(好象)在从句中不充当句子成分,只起连接作用。根据句义,如果连接代词与连接副词,whether、if 和as if都用不上时,才用that作连接词(that本身无任何含义)。
(二)主语从句
1、主语从句在复合句作主语。
e.g. Who will go is not important.
2、用it作形式主语,主语从句放在句末。
e.g. It doesn't matter so much whether you will come or not.
3、that引导主语从句时,不能省略。
e.g. That he suddenly fell ill last week made us surprised.
(三)表语从句
1、表语从句在复合句中作表语,位于系动词之后。
e.g. The question was who could go there.
2、引导表语从句的连接词that有时可省去。
e.g. My idea is (that) we can get more comrades to help in the work.
(四)宾语从句
1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略。
e.g. I hope (that) everything is all right.
2、介词之后的宾语从句,不可用which或if连接,要分别用what或 whether。
e.g. I'm interested in whether you've finished the work..
I'm interested in what you've said.
3、whether与if都可以引导宾语从句,常可互换。但下面情况不能互换。
①宾语从句是否定句时,只用if,不用whether。
e.g. I wonder if it doesn't rain.
②用if 会引起误解,就要用whether。
e.g. Please let me know whether you want to go.(此句如果把whether改成if,容易当成条件句理解)
③宾语从句中的whether 与or not直接连用,就不能换成if;不直接连用,可换。
e.g. I don't know whether or not the report is true.
I don't know whether/ if the report is true or not.
④介词后的宾语从句要用whether引导。whether 可与不定式连用。whether也可引导主语从句、表语从句、同位语从句,还可引导让步状语从句,以上均不能换成if。但引导条件从句时,只能用if,而不能用whether。
e.g. It depends on whether we have enough time.
They don't know whether to go there.
Please come to see me if you have time.
(五)同位语从句
同位语从句在句中作某一名词的同位语,一般位于该名词(如:news, fact, idea, suggestion, promise等)之后,说明该名词的具体内容。
e.g. I have no idea when he will be back.
The fact that he had not said anything surprised everybody.
练习:名词性从句
一、判断下列各句哪句含有名词性从句,并指出是什么从句:
1. China is no longer what it used to be.
2. The truth that the earth turn around the sun is known to all.
3. It was snowing when he arrived at the station.
4. How he persuaded the manager to change the plan is interesting to us all.
5. The news that they had won the game soon spread over the whole school.
6. The news that you told me yesterday was really disappointing.
7. That is where Lu Xun used to live.
8. He spoke as if he understood what he was talking about.
9. Do you remember the teacher who taught us English at middle school?
10. I wonder why she refused my invitation.
二、用适当的连词填空:
1. I can't decide ____________ dictionary I should buy.
2. That's ____________ he refused my invitation.
3. I am very interested in ____________ he has improved his pronunciation in such a short time.
4. ____________ we need is more time.
5. The fact ____________ she had not said anything at the meeting surprised everybody.
6. ____________ and ____________ they will meet has not been decided yet.
7. Please tell me ____________ you are waiting for.
8. Is that ____________ you are looking for?
9. Would you please tell me ____________ the nearest post office is?
10. I don't know ____________ he will agree to the plan or not.
三、选择填空:
1. Do you see _____ I mean?
A. that B./ C. how D. what
2. Tell me_____ is on your mind.
A. that B. what C. which D. why
3. We must stick to _____ we have agreed on.
A. what B. that C. / D. how
4. Let me see _____.
A. that can I repair the radio B. whether -I can repair the radio
C. I can repair the radio D. whether can I repair the radio
5. Keep in mind _____.
A. that the teacher said B. what did the teacher say
C. that did the teacher say D. what the teacher said
6. Could you advise me _____?
A. which book should I read first B. what book should I read first
C. that book 1 should read first D. which book I should read first
7. He was criticized for _____.
A. he had done it B. what he had done C. what had he done D. that he had done it
8. Would you kindly tell me _____?
A. how can I get to the Beijing Railway Station
B. how I can get to the Beijing Railway Station
C. where can I get to the Beijing Railway Station
D. whether can I get to the Beijing Railway Station
9. Mrs. Smith was very much impressed by _____.
A. what had she seen in China B. that she had seen in China
C. what she had seen in China D. which had she seen in China
10. We took it for granted ___
A. that they were not coming B. that were they not coming
C. they were coming not D. were they not coining
11. I really don't know _____
A. I should do next B. what should I do next
C. what I should do next D. how I should do next
12. I'm afraid _____.
A. the little girl will have to be operated on
B. that will the little girl have to operate on
C. the little girl will have to operate on
D. that will the little girl have to be operated on
13. She walked up to _____ .
A. where did I stand B. where I stood
C. I stood there D. where I stood there
14. Can you tell me _____?
A. who is that gentleman B. that gentleman is who
C. who that gentleman is D. whom .is that gentleman
15. We'll give you _____.
A. that do you need B. what do you need
C. whatever you need D. whether do you need
16. They want us to know _____ to help us.
A. what can they B. what they can C. how they can D. how can they
17. We must put _____ into practice.
A. what we have learned B. that we have learned
C. that have we learned D. what have we learned
18. Did she say anything about _____?
A. that the work was to be done B. how was the work to be done
C. that was the work to be done D. how the work was to be done
19. He was never satisfied with _____.
A. what she had achieved B. had what she achieved
C. she had achieved D. that she achieved
20. These photographs will show you _____.
A. what does our village look like B. what our village looks like
C. how does our village look like D. how our village looks like
21. Peter insisted _____ he pay the bill.
A. on that B. what C. that D. on which
22. They urged _____ the library open during the vacation.
A. when B. where C. why D. that
23. We wish we could have learned _____ when we were at high school.
A. what you did B. that you had done
C. that what you did D. what did you do
24.1 will describe to you _____ I saw when there.
A. what B. that C. which D./
25. From _____ I should say he is a good worker.
A. what 1 know of him B. that I do know of him
C. what do I know of him D. that do I know of him
26. I will give this dictionary to __ wants to have it.
A. whomever B. anyone C. whoever D. someone
27._____ they will come here hasn' t been decided yet.
A. What B. That C. When D. Where
28. _____ was said here must be kept secret.
A. Who B. The thing C. Whatever D. Where
29. It is still a question _____ we shall have our sports meet.
A. if B. that C. what D. when
30. I'm going anyway. _____ she will go is up to her to decide.
A. If or not B. Whether or not C. If D. That
31. It is strange _____ she have left without saying a word.
A. that B. what C. why D. how
32. It is very clear _____ our policy is a correct one.
A. what B. that C. why D. where
33. _____ Mr Zhang said is quite right.
A. That B. When C. What D. Whether
34. It has been decided _____ he will be sent there.
A. if B. whether C. why D. that
35. It doesn' t matter _____he' s come back or not.
A. if B. whether C. that D. when
36. It's a great pity _____ we won't be able to finish the task on time.
A. when B. that C. why D. where
37. It happened _____ I wasn't there that day.
A. when B. why C. where D. that
38._____ you have done might do harm to other people.
A. What B. That C. Which D. The things
39. _____ leaves the room last ought to turn oft the lights.
A. Anyone B. The person C. Whoever D.Who
40._____ the 2000 Olympic Games won't be held in Beijing is known to all.
A. Whether B. If C. Whenever D. That
41. _____ fails to see this will make a big mistake.
A. That B. Whoever C. Whether D. Whether or not
42. __ we need more equipment is quite obvious.
A. What B. Whether C. That D. Whatever
43. 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
44. That is _____ we all support his idea.
A. what B. why C. where D. when
45. That's _____ we should do.
A. that B. what C. how D. why
46. _____ is troubling me is _____ I don't understand _____ he said
A. What; that; what B. What; what; what
C. That; that; what D. Why; that; which
47. Things were not _____ they seemed to be.
A. when B. why C. that D. what
48. That's _____ I want to say.
A. all what B. what C. all which D. what that
49. That's _____ .
A. where our differences lie B. our differences lie there
C. where do our differences lie D. that where our differences lie
50. That is _____ .
A. where lived he there B. where did he live
C. where he lived D. that where he lived
51. The questions is _____.
A. whether is it worth doing B. that if it is worth doing
C. whether it is worth doing D. if it is worth doing
52. Water will continue to be _____ it is today next in importance to oxygen.
A. how B. which C. what D. as
53. That's_____.
A. how did I become a teacher B. how I became a teacher
C. how a teacher I became D. that I became a teacher
54. They are just _____.
A. that what shall I have B. what shall I have
C. that I shall have what D. what I shall have
55. It looked ____.
A. as if it was going to rain B. that as if it was going to rain
C. as if was it going to rain D. as if that it was going to rain
56. That's_____.
A. how she did it B. that how did she do it.
C. how did she do it D. what she did it
57. That is _____ we decided to put the discussion off.
A. where B. which C. that D. why
58. That's _____ I lived when I was ten years old.
A. where B. at which C. there where D. when
59. My suggestion is _____ we should send a few comrades to help them.
A. if B. that C. when that D. that where
60. The idea _____ all people are selfish is wrong.
A. what B. that C. why D. if
61. We heard the news _____ our team had won.
A. that B. what C. whether D. why
62. The fact _____ he hadn't said anything surprised us all.
A. why B. if C. that D. whether
63.I have no idea _____ she will be back.
A. that B. where C. that when D. when
64. We must keep in mind the fact _____ China is still a developing country.
A. whether B. that C. why D. when
65. They have no idea at all _____.
A. where he has gone B. where did he go
C. where has he gone D. which place he has gone 《高中英语语法-名词性从句》由英语我整理,更多请访问:
求对英语名词性从句的详细总结，高考用？？
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)
(3) It happens…, It occurs… 结构中的主语从句不可提前。例如：
It occurred to him that he failed in the examination. (right)
That he failed in the examination occurred to him. (wrong)
(4) It doesn’t matter how/whether …结构中的主语从句不可提前。例如：
It doesn’t matter whether he is wrong or not. (right)
Whether he is wrong or not doesn’t matter. (wrong)
(5) 含主语从句的复合句是疑问句时，主语从句不可提前。例如：
Is it likely that it will rain in the evening? (right)
Is that will rain in the evening likely? (wrong)
4. What 与that 在引导主语从句时的区别
What 引导主语从句时在句时在从句中充当句子成分，如主语．宾语．表语，而that 则不然。例如：
1) What you said yesterday is right.
2) That she is still alive is a consolation.
二．宾语从句
宾语从句就是在复合句中作宾语的名词性从句，通常放在主句谓语动词（及物动词）或介词之后。
1. 作动词的宾语
(1) 由that引导的宾语从句（that 通常可以省略）,例如：
I heard that be joined the army.
(2) 由what, whether (if) 引导的宾语从句，例如：
1) She did not know what had happened.
2) I wonder whether you can change this note for me.
(3) 动词＋间接宾语＋宾语从句。例如：
She told me that she would accept my invitation.
2. 作介词的宾语
例如：Our success depends upon how well we can cooperate with one another.
3. 作形容词的宾语
例如：I am afraid (that) I’ve made a mistake.
That 引导的从句常跟在下列形容词后作宾语：
Anxious, aware, certain, confident, convinced, determined, glad, proud, surprised, worried, sorry, thankful, ashamed, disappointed, annoyed, pleased, hurt, satisfied, content 等。也可以将此类词后的that 从句的看作原因状语从句。
4. It 可以作为形式宾语
It 不仅可以作为形式主语，还可以作为形式宾语而真正的宾语that 从句则放在句尾，特别是在带复合宾语的句子中。 例如：
We heard it that she would get married next month..
5. 后边不能直接跟that 从句的动词
这类动词有Allow, refuse, let, like, cause, force, admire, condemn, celebrate, dislike, love, help, take, forgive等。这类词后可以用不定式或动名词作宾语，但不可以用that引导的宾语从句。例如：
I admire their winning the match. (right)
I admire that they won the match. (wrong)
6. 不可用that从句作直接宾语的动词
有些动词不可用于“动词＋间接宾语＋that从句“结构中，常见的有Envy, order, accuse, refuse, impress, forgive, blame, denounce, advise, congratulate等。例如：
He impressed the manager as an honest man. (right)
He impressed the manager that he was an honest man. (wrong)
7. 否定的转移
若主句谓语动词为Think, consider, wuppose, believe, expect, fancy, guess, imagine等，其后的宾语从句若含有否定意义，一般要把否定词转移到主句谓语上，从句谓语用肯定式。例如：
I don’t think this dress fits you well.（我认为这件衣服不适合你穿。）
三．表语从句
表语从句在复合句中作表语的名词性从句，放在系动词之后，一般结构是“主语＋连系动词＋表语从句”。可以接表语从句的连系动词有be, look, remain, seem等。引导表语从句的that常可省略。另外，常用的还有the reason is that… 和It is because 等结构。例如：
1) The question is whether we can make good preparation in such a short time.
2) This is why we can’t get the support of the people
3) But the fact remains that we are behind the other classes.
4) The reason he is late for school is that he missed the early bus.
四．同位语从句
同位语从句就是在复合句中作名词的同位语的名词性从句。
1. 同位语从句的功能
同位语从句对于名词进一步解释，说明名词的具体内容，一般由that引导，例如：
1) The king’s decision that the prisoner would be set free surprised all the people.
2) The order that all the soldiers should stay still is given by the general.
2. 同位语在句子中的位置
同位语从句有时可以不紧跟在它所说明的名词后面，而是被别的词隔开。例如：
He got the news from Mary that the sports meeting was put off.
3. 同位语从句与定语从句的区别
(1) 定语从句中的that既代替先行词，同时以在从句中作某个成分（主语或宾语），而同位语从句中的that是连词，只起连接主句与从句的作用，不充当句中任何成分。
(2) 定语从句是形容词性的，其功能是修饰先行词，对先行词加以限定，描述定的性质或特征；同位语从句是名词性的，其功能是对名词进行补充说明。例如：
1) The news that he told me is that Tom would go abroad next year.（他告诉我的消息是汤姆明年将出国。）（第一个that引导的从句是定语从句，that在从句中作宾语）
2)The news that Tom would go abroad is told by him.（汤姆将出国的消息是他讲的。）（同位语从句，that在句中不作任何成分）
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