主语从句讲解加练习(1)
主语从句强调句讲解练习
主语从句1．定义：用作主语的从句叫做主语从句。
2．引导主语从句的关联词有三类：(1)从属连词that、whether。
如：如：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似。
Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
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。
由whether及其他连词引导的主语从句放在句首，句后都可。
If只能放在句中。
(2) （特殊疑问词）连接代词who, whom, whose, what, which, whoever, whatever, whichever如：___which_______watch was lost is unknown._____what_____she did is not yet known. 她干了什么尚不清楚。
__which________side will win is not clear.Whoever comes is welcome. 不论谁来都欢迎。
(3) （特殊疑问词）连接副词where, when, how, why，wherever，whenever，however。
___________ he did it remains a mystery.When they will start is not known yet.How this happened is not clear to anyone. 这事怎样发生的，谁也不清楚Wherever you are is my home ---- my only home.你所在的任何地方就是我的家----我唯一的家。
主语从句讲解及习题
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.It is important that a student learn English well.It' s clear that they badly need help.It is likely that a hurricane will arrive soon.知识拓展：在“It is necessary / important/surprising/strange/unthinkable/unbelievable/incredible+that 从句”这类主语从句结构中，从句中谓语动词常用(should) +动词原形”，形式，即要用虚拟语气should 可省略。
主语从句讲解及练习
主语从句讲解及练习什么是主语从句？主语从句是由一个从句充当主语的句子结构，它由连接词引导，用来说明主语的内容或者起到引入主题的作用。
主语从句的引导词一般情况下，主语从句由以下连接词引导：- that- whether/if- who/whom- which- what- whatever- whoever- whichever主语从句的用法主语从句在句子中承担主语的角色，可以帮助我们表达某个动作、状态、事件或者事实的主题。
下面是一些常见的用法示例：1. 表达事实或真理：例如：That he is innocent is beyond doubt.（他的无辜是毫无疑问的。
）2. 表达感觉或观点：例如：What he said is very interesting.（他说的话很有趣。
）3. 引导宾语从句：例如：I believe that he will succeed.（我相信他会成功。
）主语从句的位置一般情况下，主语从句位于句首或者句中，具体位置取决于句子的结构和语境。
主语从句的练题请根据下面的句子，填写合适的主语从句：1. __________ you did yesterday surprised everyone.（你昨天做的事让大家都吃惊。
）2. __________ will happen remains unknown.（将会发生什么还不确定。
）3. __________ is important to study hard.（努力研究是很重要的。
）5. __________ we need is more time.（我们所需要的是更多的时间。
）参考答案：1. What2. What3. It4. Whether/if5. What以上是对主语从句的讲解及练习，希望对你的学习有所帮助。
主语从句练习题1
练习题1. “Is Mary from New York City”“I don't know _______.”A. from what city does she come fromB. from what city she comeC. what city does she come fromD. what city she comes from2. ________ makes mistakes must correct them.A. WhatB. ThatC. WhoeverD. Whatever3. The reason why I didn't go to Shanghai was ________ a new job.A. because I gotB. because of gettingC. I gotD. that I got4. It worried her a bit ____ her hair was turning grey.A. whileB. thatC. ifD. for5. Henry killed the dog. I'll ask him why ________.A. did he do thatB. he did thatC. he didD. he has done so6. Have you seen Henry lately My boss wants to know ________.A. how he is getting alongB. how is he getting alongC. what he is getting alongD. what is he getting along7. It is generally considered unwise to give a child ____ he or she wants.A. howeverB. whateverC. whicheverD. whenever8. He asked me ________ with me.A. what is the troubleB. what wrong wasC. what was the matterD. what trouble it is9. I am sure ________ he said is true.A. thatB. about thatC. of thatD. that what10. I wonder how much ________.A. does the watch costB. did the watch costC. the watch costedD. the watch costs11. Mary is ________ someone might recognize her.A. afraid ofB. afraid aboutC. afraid thatD. afraid for12. I don't doubt ________ he'll come.A. thatB. ifC. whatD. whether13. —“Why did you go to the wrong class, Mr. Wang”—“Well, I forget _______ I was supposed to go to.”A. which the roomB. which roomC. what was the roomD. what room was it14. ______ surprised me most was ______ such a little boy of seven could play theviolin so well.A. That…whatB. What…thatC. That…whichD. What…which15. ________ we go swimming every day ________ us a lot of good.A. If…doB. That…doC. If…doesD. That…does16. One of the men held the view ________ the book said was right.A.what thatB. that whatC. that whichD. which that17. I have no idea ________ or not he has finished the work.A. ifB. thatC. whetherD. which18. —“Do you know ________”—“His father is a doctor.”A. what is his fatherB. who is his fatherC. what his father isD. who his father is19. They discussed ________ they could settle the problem without others' help.A. ifB. thatC. whatD. whether20. She asked ________.A. what I was doing when she rang me upB. what was I doing when she rang me upC. when she rang me up what I was doingD. when did she ring me up what I was doing21. It's uncertain ________ the experiment is worth doing.A. ifB. thatC. whetherD. how22. They would have fixed the telephone yesterday _________ itwas a holiday.A. exceptB. except forC. except thatD. but for23. ________ the boy didn't take medicine made his mother angry.A. ThatB. WhatC. HowD. Which24. ____ we can't get seems better than ____ we have.A. What, whatB. What, thatC. That, thatD. That, what25. ____ you don't like him is none of my business.A. WhatB. WhoC. ThatD. Whether26. ____ we'll go camping tomorrow depends on the weather.A. IfB. WhetherC. ThatD. Where27. ________he really means is ________he disagrees with us.A. What … thatB. That … whatC. Why … thatD. If …what28. _________is going to do the job will be decided by the Party committee.A. ThatB. WhyC. HowD. Who29. _______ we'll finish translating the book depends on the time.A. WhenB. WhyC. WhatD. That30. _______ the house will be built will be discussed at tomorrow's meeting.A. IfB. WhereC. ThatD. What31. _______ he won't go there is clear to all of us.A. HowB. WhatC. WhyD. This32. _______ you come or not is up to you.A. WhatB. IfC. WhyD. Whether33. _______ makes mistakes must correct them.A. WhoB. AnyoneC. WhoeverD. Anybody34. _______ team will win the match is a matter of public concern. docinA. Which B. That C. If D. How35. The problem is ________will go to the meeting.A. whyB. whenC. whatD. who36. that is _______ he likes the place so much.A. thatB. whatC. whyD. how37. that is ______ Lu Xun once lived.A. whatB. whereC. thatD. why38. What I'm considering now _________ the money we need.A. isB. areC. wereD. was39. Can you tell me __________A. who is that gentlemanB. that gentleman is whoC. who that gentleman isD. whom is that gentleman40. We should think carefully about ________ Mr. Needham said at the meeting.A. thatB. whatC. whichD. X41. Can you point out ________ two radios are the bestA. whichB. whatC. thatD. whether42. ________ you have seen things like these before doesn't matter.A. IfB. WhetherC. WhatD. When43. I asked her in English ________ she was, and she told me ________ she was anactress.A. who…thatB. who…XC. what…XD. how…that44. Do you know ________A. what is this used forB. what this is used forC. which this is usedD. that this is used for45. ________ surprised me most was ________.A.That…that she spoke Japanese so wellB. What…how could she speakJapanese so wellC. What…that she spoke Japanese so wellD. That…why she could speak Japanese so well46. ________ 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 expected。
主语从句练习
主语从句练习主语从句练习练习1：划出下面句子的主语A foreign language is a weapon in the struggle of life.Who is speaking, please? This is Jack speaking.Two will be enough.Smoking is very dangerous.To see is to believe.To do today's homework without the teacher's help is very difficult.“A” is an article.The teacher with two of his students is walking into the classroom.练习2 what, whether, where,when，who, why, how or that.1.(_____ is needed for success) is your hard work.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 teacher5.(________ it will rain or not) is not clear.主语从句作主语时，谓语动词一般用单数形式。
练习3Wh--ever1. 你需要的是更多的经验。
____________________ is more experience.2. 谁最先到将得到奖品。
_________________________ will receive a prize.3. 我所有的东西请随便使用。
名词性从句学案(语法精讲-主语从句、宾语从句、表语从句、同位语从句)+经典习题(含答案)
名词性从句名词性从句〔主语、表语、宾语、同位语从句〕（一）主语从句1．定义：用作主语的从句叫做主语从句。
2．构成：关联词+简单句3．引导主语从句的关联词有三类：(1) 附属连词that。
如：That they were in truth sisters was clear from the facial resemblance between them.很明显，她们确是亲姐妹，她们的脸型很相似。
(2) 附属连词whether。
如：Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。
(3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever连接副词where, when, how, why。
如：What she did is not yet known. 她干了什么尚不清楚。
解释：1．主语从句能用it作形式上的主语。
常以it作形式主语的句型有：A. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。
如：It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。
B. It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that从句。
如：It’s a pity that we can’t go. 很遗憾我们不能去。
C.It+seem, happen等不及物动词及短语+that从句。
如：It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。
最新主语从句详细讲解及综合练习资料
主语从句一、概念：在复合句中起主语作用的从句叫主语从句。
（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.主语从句的时态：不受主句的时态影响和限制。
（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)主语从句的时态：不受主句的时态影响和限制。
英语句子成分句子结构讲解及练习含答案
英语句子成分与英语句子构造讲解及练习1主语〔subject〕: 句子说明的人或事物。
The sun rises in the east. 〔名词〕He likes dancing. 〔代词〕Twenty years is a short time in history. (数词)Seeing is believing. 〔动名词〕To see is to believe. 〔不定式〕What he needs is a book. 〔主语从句〕It is very clear that the elephant isround and tall like a tree. 〔It形式主语，主语从句是真正主语〕谓语〔predicate〕: 说明主语的动作、状态与特征。
We study English.He is asleep.表语〔predicative〕: 系动词之后的成分，表示主语的性质、状态与特征。
He is a teacher. 〔名词〕Seventy-four! You don’t look it.〔代词〕Five and five is ten. 〔数词〕He is asleep. 〔形容词〕His father is in. 〔副词〕The picture is on the wall.( 介词短语)My watch is gone / missing / lost.〔形容词化的分词〕To wear a flower is to say “I’mpoor, I can’t buy a ring. 〔不定式〕The question is whether they willcome. 〔表语从句〕〔常见的系动词有: be, sound〔听起来〕, look〔看起来〕, feel(摸起来，smell〔闻起来〕, taste〔尝、吃起来〕, remain第1 页〔保持，仍是〕, feel〔感觉〕 ...It sounds a good idea.The sound sounds strange.Her voice sounds sweet.Tom looks thin.The food smells delicious.The food tastes good.The door remains open.Now I feel tired.宾语：1〕动作的承受者-----动宾I like China. 〔名词〕He hates you. 〔代词〕How many do you need We need two. 〔数词〕We should help the old and thepoor.I enjoy working with you. 〔动名词〕I hope to see you again. 〔不定式〕Did you write down what he said〔宾语从句〕2〕介词后的名词、代词与动名词-----介宾Are you afraid of the snakeUnder the snow, there are manyrocks.3〕双宾语-----间宾〔指人〕与直宾〔指物〕He gave me a book yesterday.Give the poor man some money.宾补：对宾语的补充，全称为宾语补足语。
高考语法 名词性从句之主语从句与表语从句 讲解及练习(附答案)
名词性从句1 主语从句：在复合句中充当主语成分的句⼦子叫主语从句 1.1 主语从句的引导词 1.2 主语从句的形式Conlusion 1:主语从句作主语时，谓语动词一般用单数（第三人称）形式。
Conlusion 2:连词That在句中无实际意义，不能省略。
Conlusion 3:whether引导的主语从句可放在句首，但if不能。
Conlusion 4:主语从句中连词that/whether等不能重复使用。
Conlusion 5:what引导的主语从句，可根据表语决定主句的单复数形式。
Conlusion 6:为了平衡句子结构，主语从句大多可改写为it形式主语形式。
从属连词连接副词连接代词引导词that,whether,if when, why, where, how, whenever, wherever, however what, who, whom, which, whatever,whoever, whomever, whichever形式说明⽰示例that 引导的主语从句置于句⾸首、that 在主语从句中不做任何成分、不可省略他要来看望我们，这使我们很⾼高兴。
形式评语it代替主语从句It + is/was + adj. +从句对于学⽣生来说很明显的是，他们要为未来做好准备。
“It is/was + necessary/important/surprising/strange/unbelievable/obvious…+从句”结构中，从句谓语动词用“should+动词原形”，should可以省略It + is/was + 名词 +从句我们的希望是，我们都能通过考试。
It + is/was + V-ed +从句据宣布，该计划已经顺利通过。
“It is/was + suggested/advised/ordered/insisted/required/demanded…+从句”结构中，从句谓语动词用“should+动词原形”，should可以省略It + is/was + 特殊动词 +从句(happen,occur,seem,appear…)你似乎不同意这个计划。
主语从句 讲解与练习
C.It+be+过去分词 (said, reported, thought, expected, announced, arranged, etc.) +that从句 It is said that Mr. Green has arrived in Beijing.
D.It+(seems, happens, appears等不及物动词及短 语)+that从句 It happened that I was out that day. It seems that she is not in a good mood.
E.It+(doesn’t matter, makes no difference,etc)+ 连接代词或连接副词引导的 主语从句 It doesn’t matter whether she will come or not.
ቤተ መጻሕፍቲ ባይዱ
主语从句与强调句的区别
1). 在主语从句中，把It be … that 去掉之后，句子成分不完整；在 强调句中，则是个完整的句子； 2). 主语从句多种引导词；强调句 的引导词只有：that, who。
What you said is of great importance. How he was successful is still a puzzle.
3.主语从句置于句首时，必 须由连接词引导，不能省略 这些连接词；但是如果用it 作形式主语，主语从句后置 时，则从属连词that可以省 略。 That he is a hero is known by everyone.
Subject Clauses 主语从句
A tree has fallen across the road.
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, why1. 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…2. 宾语从句名词句用作宾语的从句叫宾语从句。
(完整版)1主语从句练习及答案
主语从句练习1. _____ as much as one-fifth of all timber harvested is not used.A. The estimateB. The estimateC. They are estimatedD. It is estimated that2. _____ was once regarded as impossible has now become a reality.A. ThatB. WhichC. WhoD. What3. _____ we have achieved is attributed to the guidance of our parents.A. WhoeverB. WhateverC. HoweverD. That4. _____ you say now can’t make up for what you’ve done.A. No matterB. WhateverC. HoweverD. That5. Although _____ happened in this developed country sounds like science fiction, itcould occur elsewhere in the world.A. whichB. whatC. howD. it6. _____ she had forgotten to take her notebook.A. That occurred to herB. She occurred thatC. To her that occurredD. It occurred to her that7. I am sure that _____ she said is wrong.A. whichB. allC. thisD. what8. We lost our way in the forest, and _____ made matters worse was that it wasgetting dark.A. thatB. whichC. itD. what9. _____ occurred to him that he had forgotten to lock the door when he left home.A. ThisB. ItC. ThatD. These10. _____ or not is still uncertain.A. He’s comingB. If he is comingC. That comingD. Whether he’s coming11. It’s _____ he’ll be able to come.A. doubt whetherB. doubtfulC. doubt itD. doubtful whether12. It is _____ that the bridge has existed for more than three centuries .A. appearedB. risenC. saidD. born13. _____ he saw both surprised and frightened him.A. ThatB. WhenC. WhatD. Which14. _____ is a spell of warm sunshine.A. What do we all need.B. What all we needC. What we needD. What we all need15. _____ is a pity that he should feel so upset.A. WhatB. ThatC. HeD. It16. _____ a spoonful of soil can tell us so much about the structure and early history of the moon.A. RemarkableB. Quite remarkablyC. It is remarkable thatD. It is remarkable17. _____ you nominate will be elected.A. WhoB. WhichC. WhomeverD. That’s18. _____ book you borrow must be returned within a week.A. WhatB. WhichC. WhicheverD. That’s19. _____ is troubling me is that I don’t have much experience in international commerce.A. ItB. ThatC. WhichD. What20. _____they wil go there to try another experiment has not been decided yet.A. WhetherB. IfC. About whetherD. Why根据提示，完成句子。
主语从句讲解和练习题
主语从句讲解和练习题公司内部编号：（GOOD-TMMT-MMUT-UUPTY-UUYY-DTTI-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， whether1）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。
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。
主语从句练习题
主语从句练习题主语从句练习题主语从句是英语语法中的重要部分，它在句子中充当主语的角色。
掌握主语从句的用法对于提高英语写作和口语表达能力非常重要。
下面将给出一些主语从句的练习题，帮助读者更好地理解和掌握这一语法结构。
练习题一：选择正确的主语从句1. ________ is not clear why he didn't attend the meeting.a) That b) Whether c) If d) What2. ________ you said really surprised me.a) That b) Whether c) If d) What3. ________ he will come to the party is still uncertain.a) That b) Whether c) If d) What4. ________ she is right or wrong doesn't matter to me.a) That b) Whether c) If d) What5. ________ will happen next is still unknown.a) That b) Whether c) If d) What练习题二：将下列句子改写为主语从句1. The fact that he lied shocked everyone.改写为主语从句：________ he lied shocked everyone.2. It is a mystery why she left the company.改写为主语从句：________ she left the company is a mystery.3. The question of whether he will accept the offer remains unanswered.改写为主语从句：________ he will accept the offer remains unanswered.4. The idea that we should go on a trip together sounds great.改写为主语从句：________ we should go on a trip together sounds great.5. The fact that he won the competition surprised everyone.改写为主语从句：________ he won the competition surprised everyone. 练习题三：根据上下文填入适当的主语从句1. ________ you said made me think about my own life.(上下文：We had a deep conversation about life and philosophy.)2. ________ she will come to the party is still unknown.(上下文：We invited her, but she hasn't given us a definite answer yet.) 3. ________ is not clear why he didn't attend the meeting.(上下文：His absence was unexpected, and no one knows the reason.) 4. ________ will happen next is still uncertain.(上下文：The situation is unpredictable, and we have to wait and see.) 5. ________ you did yesterday really impressed me.(上下文：I saw your performance at the talent show, and it was amazing.) 练习题四：用适当的主语从句改写下列句子1. It is important to exercise regularly.改写为主语从句：________ is important to exercise regularly.2. It seems that she is not happy with her new job.改写为主语从句：________ she is not happy with her new job.3. It is clear that they have a strong bond as siblings.改写为主语从句：________ they have a strong bond as siblings.4. It is a pity that he missed the opportunity to study abroad.改写为主语从句：________ he missed the opportunity to study abroad.5. It is obvious that he has put a lot of effort into this project.改写为主语从句：________ he has put a lot of effort into this project.答案：练习题一：1. d) What 2. a) That 3. b) Whether 4. c) If 5. a) That练习题二：1. That he lied shocked everyone. 2. Why she left the company is a mystery. 3. Whether he will accept the offer remains unanswered. 4. That we should go on a trip together sounds great. 5. That he won the competition surprised everyone.练习题三：1. What you said made me think about my own life. 2. Whether she will come to the party is still unknown. 3. It is not clear why he didn't attend the meeting. 4. What will happen next is still uncertain. 5. What you did yesterday really impressed me.练习题四：1. Exercising regularly is important. 2. She is not happy with her new job. 3. They have a strong bond as siblings. 4. It is a pity that he missed the opportunity to study abroad. 5. It is obvious that he has put a lot of effort into this project.。
名词性从句学案(语法精讲-主语从句、宾语从句、表语从句、同位语从句)+经典习题(含答案)
名词性从句名词性从句（主语、表语、宾语、同位语从句）（一）主语从句1．定义：用作主语的从句叫做主语从句。
2．2．构成：关联词+简单句3．3．引导主语从句的关联词有三类：4．(1)从属连词that。
如：Thattheywereintruthsisterswasclearfromthefacialresemblancebetweenthem.(2)(3)解释：1+thatIt’ItdoesnF.当G.2．注意连接代词whoever,whatever,whichever等引导主语从句的含义Whoevercomeswillbewelcome.(whoever=thepersonwho)来的人将受到欢迎。
（二）表语从句1．定义：用作表语的从句叫做表语从句。
2．构成：关联词+简单句3．引导表语从句的关联词的种类：(1)从属连词that。
如：ThetroubleisthatIhavelosthisaddress.麻烦是我把他的地址丢了。
(2)从属连词whether,as,asif。
如：Helookedjustashehadlookedtenyearsbefore.他看起来还与十年前一样。
注：从属连词if一般不用来引导表语从句，但asif却可引导表语从句能跟表语从句的谓语动词一般为系动词be,seem,look等。
如：Itlookedasifitwasgoingtorain.看起来天要下雨了。
(3)连接代词who,whom,whose,what,which,whoever,whatever,whichever连接副词where,when,how,why。
如：Thequestionishowhedidit.问题是他是如何做此事的。
解释：1．连词because可引导表语从句。
如：2注意：1．what●例：2．when●例：●例：3．that●例：●例：4．●（三）宾语从句1．定义：用作宾语的从句叫宾语从句。
2．构成：关联词+简单句3．引导宾语从句的关联词有三类：(1)从属连词that。
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4.(__W__h_o_ can join in the sport meet) is decided by the teacher. 5.(W__h_e_t_h_e_r_ it will rain or not) is not clear.
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_i_s_a__p_i_ty__th_a_t__(很遗憾)we lost the match.
Unit4 Grammar
Noun clauses as the subject
名词性从句
主语
Find the subjects in the following sentences.
1. A tree has fallen across the road. 2. You are a student. 3. To find your way can be a problem. 4. Smoking is harmful to you. 5. What she said is not yet known. 6. That we shall be late is certain. 7. It’s certain that we shall be late.
3What seems easy to some people seems difficult to others.
4Which side will win is not clear.
5Why he did it remains a mystery.
主语从句的引导词：
连词 that , whether 连接代词 who(ever), whom(ever),
*it为形式主语
2.That they should like each other is natural. _I_t _is__n_a_tu__ra_l_t_h_a_t_t_h_e_y_s_h_o_u__ld__li_k_e_e_a_c_h__o_th__er.
这样就构成了下面一些常用句型: 1) It is + n. +从句
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；但是如果用it 做形式主语，而把主语从句放在句末时， 从属连词that可以省略。
误：They should like each other is natural. 正：That they should like each other is
主语从句的规律：
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。
which(ever), what(ever)
连接副词 where ,when ,why ,how
“ 缺主语，指人用who ，指物用 what
缺 什
缺宾语，指人用whom/who，指物用 what
么 缺时间状语用 when；
补 什
地点状语用 where ；
么 原因状语用 why ；方式状语用 how ；
主语从句
在句中充当主语的从句叫做主语从句。
Find the subject clauses in the following sentences, and translate them.
1That he will come is certain.
2Whether it will please them is not easy to say.
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。
It must be admitted that…必须承认……
It cannot be denied that… 不可否认……
It must be pointed out that…需指出的是……
*_I_t_i_s__re_p__o_r_te__d_t_h_a_t__(据报道)20 people were
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. __I_t _is__im__p_o_s_s_i_b_le__th_a_t_h__e_w_i_ll_r_e_f_u_s_e_t_h_i_s_p_i_e_c_e __o_f_a_d_v_i_c_e_._____________________________
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.
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...据信……;人们相信……
It is suggested that + (should）do... 建议……
主语从句的规律：
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。
Which student will win is uncertain. Whatever was said here must be kept secret.
这里说的话都应当保密。 Whoever makes mistakes must correct them.
凡犯了错误的人都必须改正。
3)连接副词when，where， how， why等。
” 原 则
定语用what或which 什么都不缺用 that或whether（是否）。
Where he will go is unknown. What you said yesterday is right. That he knows Japanese is known to all. Whether he is coming doesn’t matter much.
*__It_i_s_a__f_a_c_t _th_a_t_(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…
主语从句的规律：
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
碰巧……
It occurred to me that…我突然想起…
it seems that...
*__It_h__a_p_p_e_n_e_d_t_h_a_t_(刚好)I came into the office at that time.
*_I_t _o_c_c_u_r_re_d__t_o_m__e_t_h_a_t_(我突然想起)I forget to sent the letter.
正: Whether Mary really heard him is really
doubtful.
Complete the sentences using what, whether, where,
when， who, why, how or that.
1.(W__h_a_t_ is needed for success) is your hard work.
主语从句作主语时，谓语动词一般用单 Conclusion: 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.