主语从句超全讲解加练习

1、语法复习训练（复习宾语从句和表语从句）语法复习训练（复习宾语从句和表语从句）1. The boys said _ they _ themselves very much.A. if; enjoy B. why; enjoyed C. where; enjoy D. that; enjoyed2. We couldnt find out _, so we asked a policeman.A. whose bike it was B. whose bike was it C. whose it was bike D. whose was it bike3. Tom asked _ to sch

2、ool late.A. who did often comes B. who often did come C. who often come D. who often came4. The teacher told us that the earth _ around the sun.A. went B. goes C. will go D. would go5. He suggested that we _ to the cinema.A. go B. shall go C. are going D. will go6. That is _ he was often late for sc

3、hool.A. what B. that C. why D. whether7.The reason _ he didnt come to school yesterday is _ he had to look after his sick mother at home.A. that ; because B. why; for C. for; that D. why; that8. It is _ you deal with difficulties that shows_ you are really like.A. what; what B. how; that C. which; h

4、ow D. how; what你能找出下列句子中的主语吗？观察一下每个从句中的引导词分别有哪些？ That she was chosen made us very happy.她当选了使我们很高兴. What caused the accident is a complete mystery.是什么导致了这次事故还完全是一个谜. Whether she will come or not is still a question.她是否来还是一个问题. Which team will win the match is still unknown.哪个队会赢得这场比赛还不知道. Whoever co

5、mes to the party will receive a present.参加聚会的每一个人都将收到一份礼物. When they will start has not been decided yet.他们何时出发还没决定.Grammar 主语从句：主语从句：做主语用的名词性从句，因其在复合句中做主语，做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引导主语从句的有连词又称主语从句，引导主语从句的有连词that ，whether， 连接代词连接代词who ，what ，which， 连连接副词接副词when，where， how， why等。等。 1）从属连词从属连词：tha

6、t， whether等等.that 引导主语从句只起引导作用，本身无实际意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，但义，在主语从句中不充当任何成分，但不能省略不能省略。 That he will win is certain.他肯定会赢。他肯定会赢。 she was chosen made us very happy.她当选了使我们很高兴她当选了使我们很高兴.Whether hell come here isnt clear. 他他是否会来这里还不清楚。是否会来这里还不清楚。 That 注意注意: 由由that 引导的主语从句有时为了使句引导的主语从句有时为了使句

7、子结构平衡子结构平衡, 避免避免 “头重脚轻头重脚轻”, 常用常用 it 作作形式形式主语主语, 而把从句放在后面。而把从句放在后面。 例如例如: 1. That he will refuse this piece of advice is impossible._ _2.That they should like each other is natural. _*it为形式主语为形式主语It is natural that they should like each other.It is impossible that he will refuse this piece of advice

8、.这样就构成了下面一些常用句型这样就构成了下面一些常用句型: 1) It is + n. +从句从句 It is a pity/shame that. 遗憾的是遗憾的是 It is a surprise that令人惊奇的是令人惊奇的是 It is a fact that 是事实是事实 It is common knowledge that 是常识是常识*_(很遗憾很遗憾)we lost the match.*_(这是事实这是事实)he cheated in the exam.It is a pity thatIt is a fact that2) It is + adj. +从句从句 Its

9、 certain that 肯定肯定 It is possible that. 很可能很可能 It is unlikely that. 不可能不可能 It is obvious that 很明显很明显 It is necessary important natural. that*_(很可能很可能)she will come back tomorrow.*_(很明显很明显)this measure is effective.+(should) +doIt is possible thatIt is obvious that3) It +不及物动词不及物动词+从句从句 It happened t

10、hat. 碰巧碰巧 It occurred to me that我突然想起我突然想起*_(刚好刚好)I came into the office at that time.*_(我突然想起我突然想起)I forget to sent the letter.It happened thatIt occurred to me that4) It + be +过去分词过去分词+从句从句 It is said that. 据说据说 It is known to all that. 众所周知众所周知 It is reported that. 据报道据报道 It is believed that.据信据信

11、;人们相信人们相信 It is suggested that + (should）do. 建议建议 It must be admitted that必须承认必须承认 It cannot be denied that 不可否认不可否认 It must be pointed out that需指出的是需指出的是 .*_(据报道据报道)20 people were killed in the accident. *_(建议建议)we should eat more vegetable and do more exerciseIt is reported thatIt is suggested tha

12、t2.连接代词连接代词who ，what ，which, whatever, whichever, whoever what既有引导主语从句的作用既有引导主语从句的作用,同时又在从句同时又在从句中作句子成分中作句子成分(主语、宾语、表语等主语、宾语、表语等).这时这时what相相当于当于all that/everything that.,常译成常译成所所的的(东西、事情、话等东西、事情、话等.) What many scientists believe is that the earth is round What is done cant be undone. (谚语谚语)已成定已成定局局,

13、无可挽回无可挽回.What we cant get seems better than what we have.我们得不到的东西似乎比已得到的要好我们得不到的东西似乎比已得到的要好. (Who, whom, which, what可以和可以和ever构成合成词，构成合成词，和和what一样引导从句，一样引导从句，ever起到强调作用。起到强调作用。此类主此类主语从句不能用形式主语语从句不能用形式主语it引导引导，它们在句子中担任，它们在句子中担任成分，成分，不能省略不能省略，语序为陈述语序，语序为陈述语序) Who will take part in the meeting has not

14、been decided. Whoever breaks the law will be punished. Which student will win is uncertain. Whatever was said here must be kept secret. 这里说的话都应当保密。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。凡犯了错误的人都必须改正。3)连接副词连接副词when，where， how， why等。等。Why they suddenly disappeared still rem

15、ains a mystery.When they will leave is not decided.Where she is from is unknown.How we will paint the house has not been decided.注意注意:1）主语从句在句首时，必须由连接词引）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，做形式主语，而把主语从句放在句末时，从属连词从属连词that可以省略。可以省略。误：误：They should like each other is na

16、tural.正：正：That they should like each other is natural.正：正：It is natural (that) they should like each other.2)如果主语从句放在句首，不能用如果主语从句放在句首，不能用if引引导，但是如果用导，但是如果用it 做形式主语，而把主做形式主语，而把主语从句放在句末时，也可以用语从句放在句末时，也可以用if引导引导.或把或把if 改为改为whether 误：误：If Mary really heard him is really doubtful.正：正：It was doubtful if M

17、ary really heard him.正正: 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.3.(_ we will go tomorrow )hasnt been decided yet.2.(_ they will arrive )has been told to the teacher

18、.4.(_ can join in the sport meet) is decided by the teacher.5.(_ it will rain or not) is not clear.WhatWhen/HowWhere/whetherWhoWhether主语从句作主语时，谓语动词一般用单数形式。主语从句作主语时，谓语动词一般用单数形式。Conclusion: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.规律一、主语从句一律用陈述语序， 即主语在前，谓语在后。正：When he will come is not

19、known.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。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、wheth

20、er 可以引导主语从句， 放在句首，但if不能主语从句的规律： 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。主语从句的规律：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。主语从句的规律：1. What he needs is that book.2. What he needs are som

21、e 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 isnt decided. 2.You have made a mistake is a fact. 3. If th

22、e policeman will come is not certain.4. That is certain that we can win. we shallWhetherItThat you have5. 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 star

23、s in the sky.thatisxareareExercises :Part One: 主语从句单选题主语从句单选题1. has helped to save the drowning girl is worth praising.A.Who B.The one C.Anyone D.WhoeverD2.It was he said disappointed me.A.what ;that B.that; that C.what;what D.that;whatA3. well go camping tomorrow depends on the weather.A.If B.Wheth

24、er C.That D.WhereB4. he said at the meeting surprised everybody present.A.What B. That C.The fact D.The matterA5. was to return to school.A.That really interested him B.What really interested himC.Which really interested him D.That interest him reallyB6. makes mistakes must correct them.A.What B.Tha

25、t C.Whoever D.WhateverC7. your men have been on my land without permission.A.It seems that B.There seems to be C.That seems D.It seems forA8.It has always puzzled me the old man lied a red silk ribbon on the young tree.A.that B.why C.where D.whatB1._ he made an important speech at the meeting was tr

26、ue. A. That B. Why C. What D. How 2. _well 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.A.whether B. that C. what D. when4.What I say and think _ none of your business. A. is B. are C. has D have 1. _ you dont like him

27、 is none of my business. 2. _ he said at the meeting astonished everybody present3. _ the 2000 Olympic Games will be held in Beijing is not known yet.4. _ well go camping tomorrow depends on the weather.5. _ leaves the room last ought to turn off the lights. ThatWhatWhetherWhetherWhoever请用恰当的主语从句连词填

28、空请用恰当的主语从句连词填空: What ,it ,that , whether, whoeverCorrect or not?*When the meeting will be held havent been known yet. be held hasnt been known yet.Pay attention:主语从句的谓语用主语从句的谓语用单数单数形式形式 10 the cat domade What the cat did made the baby cry.WhatcryMake a sentence301.The question is _ the film is inter

29、esting.2._ we shall attend the meeting hasnt been decided yet. 用用whetherif填空填空whetherWhether10talk aboutthe use of cell phone What they are talking about is the use of cell phone.Make a sentence30* If we will have a meeting hasnt been decided yet.Correct or not?Whether we will. decided yet.Pay attention:放在名词性从句放在名词性从句句首句首，表示，表示“是否是否”，只能用，只能用whether, 不能用不能用if10report , get the highest points, match It is reported that Yao Ming got the highest points in the match.Make a sentence30 Correct or not?Pay attention:此主语从句此主语从句缺少成分缺少成分-宾语，宾