主语从句超全讲解加练习教师版
1）从属连词：that，whether等.
that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。
That he will win is certain.他肯定会赢。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
注意: 由that 引导的主语从句有时为了使句子结构平衡, 避免“头重脚轻”, 常用it 作形式主语, 而把从句放在后面。例如:
1. That he will refuse this piece of advice is impossible.
2.That they should like each other is natural.
这样就构成了下面一些常用句型:
1) It is + n. +从句
It is a pity/shame that... 遗憾的是……
It is a surprise that…令人惊奇的是…
It is a fact that… …是事实
It is common knowledge that… …是常识
______________(很遗憾)we lost the match.
_____________(这是事实)he cheated in the exam.
2) It is + adj. +从句
It’s certain that… 肯定…
It is possible that... 很可能……
It is unlikely that... 不可能……
It is obvious that… 很明显…
It is necessary \important \natural\... that…+(should) do
________________(很可能)she will come back tomorrow.
*_________________(很明显)this measure is effective.
3) It +不及物动词+从句
It happened that... 碰巧……
It occurred to me that…我突然想起…
_______________(刚好)I came into the office at that time.
*____________________(我突然想起)I forget to sent the letter.
4) It + be +过去分词+从句
It is said that... 据说……
It is known to all that... 众所周知……
It is reported that... 据报道……
It is believed that..人们相信/认为……
It is suggested that + (should）do... 建议……
__________________(据报道)20 people were killed in the accident.
*_______________(建议)we should eat more vegetable and do more exercise.
2.连接代词who ，what ，which, whatever, whichever, whoever
(Who, whom, which, what可以和ever构成合成词，和what一样引导从句，ever起到强调作用。它们在句子中担任主干成分，并用陈述句形式) What many scientists believe is that the earth is round …
Who will take part in the meeting has not been decided.
Whoever breaks the law will be punished.
Whatever was said here must be kept secret.
3)连接副词when，where，how，why等。
Why they suddenly disappeared still remains a mystery.
When they will leave is not decided.
How we will paint the house has not been decided.
注意:
1）主语从句在句首时，必须由连接词引导，不能省略这些连接词
误：They should like each other is natural.
正：That they should like each other is natural
2)whether引导主语从句，if不可
误：If Mary really heard him is really doubtful.
正: Whether Mary really heard him is really doubtful.
Complete the sentences using what, whether, where, when，who, why, how or that.
1.(_____ is needed for success) is your hard work.
2.2.(______ they will arrive )has been told to the teacher.
3.(_____ we will go tomorrow )hasn’t been decided yet.
4.(______ can join in the sport meet) is decided by the teacher.
5.(________ it will rain or not) is not clear.
Conclusion:主语从句作主语时，谓语动词一般用单数形式。
主语从句的规律：
找出下列句子中的错误，并总结规律例
1.When will he come is not known.
.正：When he will come is not known.
规律一、主语从句一律用陈述语序，即主语在前，谓语在后。
例2. He will not come to the meeting this evening is true.
正：That he will not come to the meeting this evening is true.
规律二、连词that 在从句中无实际意义，但不能省略。
例3. If the meeting will be put off
has not been decided yet.
正：Whether the meeting will be put off
has not been decided yet.
规律三、whether 可以引导主语从句，放在句首，但if不能
例4. That whether he will help others
is a fact.
正：That he will help others is a fact.
规律四、主语从句中的连词不能重叠使用。
例5. When he will come are a puzzle.
正：When he will come is a puzzle.
规律五、含主语从句的主句谓语动词多用单数第三人称形式。
1. What he needs is that book.
2. What he needs are some books.
规律六、what 引导的主语从句，可根据表语决定主句动词的单复数形式。
规律七、主语从句为了避免头重脚轻现象,用it 做形式主语，而把从句放在后面。That the earth turns around the sun is known to all.
It is known to all that the earth turns around the sun.
找出错误，并给出理由：
1.Where shall we spend the holiday isn’t decided.
2.You have made a mistake is a fact.
3. If the policeman will come is not certain.
4. That is certain that we can win.
5.It is ordered we should leave at once.
6.Where he comes from are a mystery.
7.What whether he likes the job is not clear.
8.Who he is and where he is from is important.
9.What he saw is the stars in the sky.
1.___ he made an important speech at
the meeting was true.
A. That
B. Why
C. What
D. How
2. ___we’ll go camping tomorrow depends on the weather .
A If
B Whether
C That
D Where
3. It worried her a bit ___ her hair was turning gray.
whether B. that
C. what
D. when
4.What I say and think ___ none of your business.
A. is
B. are
C. has D have
请用恰当的主语从句连词填空: What ,it ,that , whether, whoever
1. _____ you don’t like him is none of my business.
2. _____ he said at the meeting astonished everybody present
3. ________ the 2000 Olympic Games will be held in Beijing is not known yet.
4. ________ we’ll go camping tomorrow depends on the weather.
5. ________ leaves the room last ought to turn off the lights.
用whether\if填空
1.The question is ________ the film is interesting.
2.________ we shall attend the meeting hasn't been decided yet.
Correct or not?
If we will have a meeting hasn’t been decided yet.
Whether we will………………………….decided yet.
Pay attention:放在名词性从句句首，表示“是否”，只能用whether, 不能用if That she wants to know is when the party will be held .
What she wants to know is…….
Pay attention:此主语从句缺少成分-宾语，故用作成分的what来引导，而不用that He will give up his job surprises all of us.
That he will give up………
Pay attention:由that引导的主语从句放在句首，that 不能省略。
1.___ he made an important speech at the meeting was true.
A. That
B. Why
C. What
D. How
2. ___we’ll go camping tomorrow depends on the weather .
A If
B Whether
C That
D Where
3.___ is known to us all that America is a developed country .
A Which
B As
C What
D It It’s known to us all ___ a form of energy
.A. water is B. that water is C. is water D. that water to
5. It worried her a bit ___ her hair was turning gray.
A. whether
B. that
C. what
D. when
6.What I say and think ___ none of your business.
A. is
B. are
C. has D have
名词性从句之主语从句讲解
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1. _____ as much as one-fifth of all timber harvested is not used. A. The estimate B. The estimate C. They are estimated D. It is estimated that 2. _____ was once regarded as impossible has now become a reality. A. That B. Which C. Who D. What 3. _____ we have achieved is attributed to the guidance of our parents. A. Whoever B. Whatever C. However D. That 4. _____ you say now can’t make up for what you’ve done. A. No matter B. Whatever C. However D. That 5. Although _____ happened in this developed country sounds like science fiction, it could occur elsewhere in the world. A. which B. what C. how D. it 6. _____ she had forgotten to take her notebook. A. That occurred to her B. She occurred that C. To her that occurred D. It occurred to her that 7. I am sure that _____ she said is wrong. A. which B. all C. this D. what 8. We lost our way in the forest, and _____ made matters worse was that it was getting dark. A. that B. which C. it D. what 9. _____ occurred to him that he had forgotten to lock the door when he left home. A. This B. It C. That D. These 10. _____ or not is still uncertain. A. He’s coming B. If he is coming C. That coming D. Whether he’s coming 11. It’s _____ he’ll be able to come. A. doubt whether B. doubtful C. doubt it D. doubtful whether 12. It is _____ that the bridge has existed for more than three centuries . A. appeared B. risen C. said D. born 13. _____ he saw both surprised and frightened him. A. That B. When C. What D. Which 14. _____ is a spell of warm sunshine. A. What do we all need. B. What all we need C. What we need D. What we all need 15. _____ is a pity that he failed in the race. A. What B. That C. He D. It 16. _____ a spoonful of soil can tell us so much about the structure and early history of the moon. A. Remarkable B. Quite remarkably C. It is remarkable that D. It is remarkable 17. _____ you nominate will be elected. A. Who B. Which C. Whomever D. That’s 18. _____ book you borrow must be returned within a week.
主语从句超全练习题及答案
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主语从句详解及练习-附答案
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公开课--主语从句讲解练习及答案
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高考英语主语从句 定义：用作主语的从句叫主语从句，它是名词性从句之一。主语从句的时态：不受主句的时态影响和限制。引导主语从句的连接词有： 从属连词: that, whether； 连接代词: who (whoever), whom, whose, what (whatever)和which (whichever)； 连接副词: when, where, how和why。 连接词： 1. 从属连词：that，whether 1）that引导主语从句只起引导作用，在主语从句中不充当任何成分，that本身无实际意义，但不能省略。2）whether意为“是否”，放在句首句末皆可。由whether引导的名词从句做主语，表语，介词宾语，同位语时！不可用if代替。 a.That price will go up is certain. b. Whether they would support us was a problem. 他们是否会支持我们还是一个问题。 2. 连接代词who ，what ，which, whatever, whichever, whoever (Who, whom, which, what可以和ever构成合成词，和what一样引导从句，ever起到强调作用。此类主语从句不能用形式主语it引导，它们在句子中担任成分，不能省略，语序为陈述语序，既有疑问含义,又起连接作用,同时在从句中充当各种成分。 Which side will win is not clear. Whoever breaks the law will be punished. Whatever he did is right. Who killed the scientist remains a question. 1）What和that引导的主语从句的区别：that 只起引导作用，不充当任何成分，没有意思。What 不仅起引导作用，还要充当一定成分(主语、宾语或表语)，意思是：“什么”。 What we need is money. That he will come is certain. 2）whatever / whoever的用法（~ever=no matter ~---让步状语从句中） whatever / whoever可以引导主语从句,并在句中作主语、宾语、表语等,不含疑问意义。whatever相当于anything that; whoever 相当于anyone who。例如: Whoever(Anyone who) wants to enter into this school must take the exam. Whatever(Anything that) she did was right. 3. 连接副词when，where，how，why等。既有疑问含义,又起连接作用,同时在从句中充当各种成分。How this happened is not clear to anyone. When he will be back depends on the weather. When we’ll start tomorrow will be told soon. Where the test will be given is not yet decided. 4. 主语从句后置：为了避免主语冗长,句子头重脚轻,经常用it 作形式主语,主语从句放在后面作真正的主语. 例: That we shall be late is certain. -- It’s certain that we shall be late. 1）用it 作形式主语的结构 A. It + be + 形容词+ that 从句 (obvious, true, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.) 如：It is certain that she will do well in her exam. B. It + be + 名词词组+ that 从句(an honour, a fact, a pity, etc）如： It is a pity/shame that... 遗憾的是…… It is a surprise that…令人惊奇的是… It is a fact that… …是事实It is common knowledge that… …是常识 It’s a pity that we can’t go. C. It + be + 过去分词+ that 从句(said, reported, thought, expected, decided, announced, etc。）如：It is said that Mr. Green has arrived in Beijing. D. It + 不及物动词或短语+ that 从句( seem，happen, doesn’t matter ,turn out）。如： It happened that I was out that day. It doesn’t matter whether she will come or not. 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
主语从句详细讲解及综合练习
主语从句 一、概念：在复合句中起主语作用得从句叫主语从句。 （一）连接词 从属连词：that、whether； 关系代词：who, what, which , whom, whose, whatever, whoever, whomever, whichever； 关系副词：when, where, how, why, however, whenever, wherever等； 例：What he said is true、 That you don’t like him is none of my business、 Whether the football game will be played depends on the weather、 主语从句得时态：不受主句得时态影响与限制。 （1）______ he finished writing the composition in such a short time ______(惊讶) us all、（2）______we will go for an outing tomorrow ______（remains，remained）unknown、（3）______ will be our monitor ______(be) decided yet、 （4）______we must study for ______ (be) a question of great importance、 （5）______ caused the accident ______（remains，remained）unknown、 （6）______ you did ______ (be)right、 （7）______ watch ______(be) lost is unknown、 （8）______we need ______(be) time、 （9）______ we need ______(be) good doctors、 小结: （1)主语从句得时态：不受主句得时态影响与限制。 （2)连词位于句首不能省略（3)主语从句大多数情况下视为三单,但也有例外,如例9 1、从属连词that，whether引导得主语从句。 从属连词that，whether在主语从句中得作用只就是引导主语从句，在从句中不担任成分，不能省略。 例：__________ they will go is certain、 __________ she will come or not is still a question、 __________ she's coming or not doesn't matter too much、 2、it作形式主语引导主语从句。 如果主语从句太长，为避免句子结构头重脚轻，我们可用it作形式主语，而把主语从句放在主句谓语部分之后。That引导得主语从句可用it代替，that 不可省略。 用作it作形式主语得结构： （1）It is/was +形容词+that 从句 It’s natural that…很自然……It’s obvious that …显而易见…… It’s fortunate that …幸运得就是It’s (im)possible…（不）可能…… It’s unlikely that…不可能It’s strange that…奇怪得就是…… （2）It is/was +名词+that 从句 It’s a pity that…遗憾得就是……It’s a fact that …事实就是…… It’s good news that…就是好消息……It’s a wonder that…不足为奇…… It’s an honour that…非常荣幸……It’s a shame that…真就是可耻…… It’s common knowledge that …就是常识… （3）It +不及物动词+that 从句 It seems that…似乎……It happened that…碰巧…… It appears that…瞧来……It turns out that…结果…… （4）It is/was +过去分词+that 从句 It’s not known that………不得而知It’s said that…据说……
主语从句练习
微练习 一、用适当的连接词完成句子。 1．has helped to save the drowning girl is worth praising. 2．It is important he should know about this. 3．they would support us was a problem. 4．Mike didn’t turn up at the meeting yesterday is unknown. 5．It is reported China has sent another manmade satellite. 6．he is still alive is a wonder. 7．type of computer he will buy needs discussing. 8．the book will sell depends on its author. And I think it’ll sell well. 9．It is still a mystery caused the accident. 10. I told you is true. 二、单项填空 1. It is under discussion the old bus station should be replaced with a modern hotel or not. A. whether B. when C. which D. where 2. one of you breaks the window will have to pay for it. A. whoever B. whatever C. whichever D. wherever 3. It remains to be seen the newly formed committee’s policy can be put into practice. A. that B. which C. what D. whether 4. those clouds threw shadows that some sunlight. A. blocked out B. took in C. put off D. gave away 5. we’ll go climbing tomorrow depends on the weather. A. If B. Whether C. That D. Where 6. all the inventions have in common is they have succeeded. A. What; what B. That; that C. What; that D. That; what 7. still needs to be discussed. A. How is the plan to be carried out B. How the plan is to be carried out C. Why is the plan carried out D. Why the plan carried out 8. that she has received a doctor’s degree. A. It’s a splendid news B. This is a splendid news C. It’s splendid news D. This is splendid news. 9. the delayed flight will take off depends much on the weather. A. Why B. When C. That D. What 10. I think impresses me about painting is the colors he uses. A. what B. that C. which D. who 三、完成句子，词数不限 1. （不管谁去接他）must have a driver’s licence. 2. （哪个班级会赢得这场足球赛）is still a mytery. 3. （他能否买到票）doesn’t matter much. 4. （我们要去哪里）is a question. 5. （你刚才告诉我的）was really a surprise.
(完整版)主语从句详解
主语从句详解 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、同位语从句、表语从句和宾语从句. 二、主语从句主要有四类 （1）由连词that引导的主语从句:引导词that无含义/在句中不做成分/不可以省. 例如：That you will win the medal seems unlikely. That you are so indifferent bothers me. That she survived the accident is a miracle. （2）用连词whether 引导的主语从句: whether有含义(是否)/在句中不做成分/不可以省. 注意：引导主语从句, 不能用if, 只能用whether. 例如：Whether we will hold a party in the open air tomorrow depends on the weather. Whether she is coming or not doesn’t matt er too much. （3）用连接代词引导的主语从句 在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中, 其连接代词在句中起名词性作用, 担当一定成分. 例如：What you need is more practice. What I want to know is this. Whatever we do is to serve the people. 注：whatever / whoever的功用 whatever, whoever在主语从句中不含疑问意义.它引导主语从句, 并在从句中作主语、宾语、表语等. whatever = anything that; whoever = anyone who.要注意和whatever, whoever引导的让步状语从句的区别. Whoever breaks the law should be punished. （主语从句） （＝Anyone who breaks the law should be punished. ） Whoever breaks the law, he should be punished. （让步状语从句） （＝No matter who breaks the law, he should be punished. ） （4）用连接副词when, where, why, how引导名词性从句(其连接副词有含义,在句中作状语.) 例如:Where we should leave it is a problem. When they will come hasn’t been made pubic. 三、注意点: it构成的主语从句 （1）由连词that引导的主语从句, 在多数情况下放到句子的后面, 而用代词it作形式主语. 例如：That light travels in straight lines is known to all. =It is known to all that light travels in straight lines.
主语从句详解及练习_附答案
高二年级语法要点剖析（李翌洋） 一、名词性从句 主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。因此，这四种从句通称为名词性从句。 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 1. 主语从句 作句子主语的从句叫主语从句。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；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。 例如： （1）What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。 It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。 Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行，还没有宣布。 注意：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。主语从句后的谓语动词一般用单数形式。常用句型如下： （1）It + be + 名词+ that从句 （2）It + be + 形容词+ that从句 （3）It + be + 动词的过去分词+ that从句 （4）It + 不及物动词+ that 从句 另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有： It is necessary (important, natural, strange, etc.) that … It is a pity (a shame, no wonder, etc.) that… It is suggested (requested, proposed, desired, etc.) that…
高中英语语法主语从句讲解及练习
名词性从句之主语从句 一、名词性从句概述：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、同位语从句、表语从句和宾语从句。 二、主语从句定义： 在句中起主语作用的从句称为主语从句。 引导主语从句的连接词主要有：单纯连词（that, whether/ if）、连接代词(what, whatever, who, whoever, whom, whose, which, whichever等)和连接副词(when, where, why, how, whenever, wherever, however等)。 1)that引导的主语从句 （1）由连词that引导的主语从句:引导词that无含义/在句中不做成分/不可以省。例如：That you will win the medal seems unlikely.你能得奖看起来不大可能。 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.你不喜欢他不管我的事。（2）形式主语it替代主语从句位于句首，that引导真正的主语从句会放到句子的后面。常用的句式主要有如下几种： 1.It+ 系动词+形容词+that从句。 如： It is necessary that …有必要…… It is clear that …很清楚…… It is likely that …很可能…… It is important that …重要的是…… 类似的形容词还有：strange; natural; obvious; true; good; wonderful; possible; unlikely; quite; unusual; certain; evident; worth-while; surprising; interesting; astonishing, etc. 例如：It was really astonishing that he refused to talk to you. It is essential that he should be here by the weekend. It seems obvious that we can not go on like this. It is necessary that you （should）master the computer.
高中英语知识讲解 主语从句
主语从句 概念引入 That you will win the medal seems unlikely. 你想获得奖牌看起来是不可能的。 Whether she is ing or not doesn’t matter too much. 她来不来都无关紧要。 What I want to know is this. 我想知道的就是这事。 When the plane is to take off has not been announced . 飞机何时起飞还没有宣布。 观察上面四个句子可以看出，黑体词部分都有连接词连接，后面都是一个谓语动词，黑体词部分都是整个句子论述的主体部分，它们就是我们本单元要学习的主语从句。 语法讲解 什么是主语从句？ 【高清课堂：367100名词性从句（一）主语从句】 在复合句中由一个句子作主句的主语的从句叫主语从句。 What matters is not winning but participating. I don’t know why he is always finding fault with me. My hometown is no longer what it used to be ten years ago. He expressed his hope that he would e to Chengdu again. 其中划横线的部分就是名词性从句。 主语从句引导词： 1. 由what等代词引导的从句,表示“所……的(东西)”，实际上等于一个先行词加上一个定语从句，也可以由-ever等代词引导。 比如: What they are talking about is nothing valuable. What I really want is to have a good rest. Whatever she did is wrong. 比较：Whatever she did, she is wrong. Whoever passes the exam can get 50 yuan. 比较：Whoever passes the exam, I will give him 50 yuan. 比较：Who passes the exam is still not clear. 2. 由that引导的主语从句,通常用形式主语it来代替。 That he has disappeared worries his parents. It worries his parents that he has disappeared. It is not likely that he can win the lottery. It is a big surprise that he is still alive. 3. 由连接代词、连接副词或whether引导的从句。 When she will be back is still a question. Where they had put the files troubled the spy. Whether he will take part in the play is unclear. Whether or not he will go to Japan is up to her. 主语从句的连接词----详述