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高考英语主语从句讲解


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

句: a. Whether they would support us was a problem. b. It was a problem whether they would support us. 3)主语从句中的否定前移 当用 it 作形式主语,而将主语从句放在句尾时,主语从句中的否定词常要前移至主句中。例如: It doesn’t seem that they are from the same university. It doesn’t appear that we’ll have a sunny day tomorrow. 5. 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)在 It + be + suggested/advised/ordered/requested/ insisted/required 中, that 从句的谓语也应该用 “should + 动词原形”的形式, should 有时可以省略。主语从句中用陈述语序,后面的谓语动词用第三人称单 数. It is suggested that we (should) do the experiment a second time. 3) . 用于 It is important / natural / necessary / impossible that...句型中, 主语从句应使用虚拟语气, 用 “should + 动词原形”的形式, should 有时可以省略。 It is important and necessary that we (should) keep the balance of nature. 4)“what”引导主语从句时,谓语动词:常与其后的名词作表语一致,且根据句子的语境而定。 eg:What you left are only several old books. What you said is of great importance. 5)在 It is funny, strange, surprising, a pity, a shame, no wonder, etc. + that 从句中,有时谓语部分用 should + 动词原形,来表达说话者的感情色彩,此时 should 也可省略。 6)语气 "It be + adj./n. + that-clause"与强调句型均有 It be...that...之类的语言标志,但不同的是:①前者中的 that 从 句是主语从句.若删掉其中的 It be 和 that,则剩余部分不论结构还是语意都不能成为一个句子;但若将后者中 的 It be 和 that 去掉,则剩余部分的结构和语意仍能构成一个完整的句子.②强调句型译为汉语时可加上"正 是……"或"就是……"之类的字眼,而主语从句则不可以. It is surprising that Mary should have won first place.令人惊奇的是玛莉竟然获得了第一名. It is Mary that has won first place.正是玛莉得了第一名.【强调】 6..主语从句的规律: 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. 1.what / that

a.____ he said at the meeting surprised us. b._____ he turned up at the meeting surprised us. 2. if / whether _______you go or stay at home won’t make any differences. 3.it What a pity _____is _____you didn’t arrive by daylight. A. there, because B. it, that C. he, when D. that, for 4.no matter how/who/what/where/when We are ready to do ______ the country wants us to do. A. what B. which C. no matter what D. whatever 5.It is a pity that you (should) miss such a good chance. ___ he made an important speech at the meeting was true. A. That B. Why C. What D. How 6. ___we’ll go camping tomorrow depends on the weather . A If B Whether C That D Where 7.___ is known to us all is that America is a developed country . A Which B As C What D It 8. It’s known to us all ___ a form of energy . A. water is B. that water is C. is water D. that water to 9. It worried her a bit ___ her hair was turning gray. A. whether B. that C. what D. when 10.What I say and think ___ none of your business. A. is B. are C. has D have 11. ____ his dream of going to college will come true is uncertain. That B. Whether C. If D. Even if 12. It is known to us ___ where there is pollution, there is harm. A. which B. where C. what D. that 13. --- I saw your neighbor break your window with a basketball. --- ____ it made me nearly mad. A. That he broke B. What he broke C. He broke D. His break 14.It remains a question ____ we can get so much money in such a short time. A.how B. that C. when D. what 15. He made a promise ___ anyone set him free he would make him very rich. A. that B. if C. what D. that if 16. They lost their way in the forest and ____ made matters worse was ___ night began to fall. A. what; that B. it; that C. what; when D. which; what 17. ________that they found an unusual plant in the forest. A. It is said B. They are said C. It said D. It says 18. _____ caused the accident is still a complete mystery. A. What B. That C. How D. Where 19. It worried Mary a lot _____ she would pass the college entrance examination. A. whether B. if C. that D. how 20. ____ is no possibility ______ Bob will win the first prize in the match. A. There, that B. It, that C. There, whether D. It, whether 21. ____surprised me most was _____such a little girl of seven could play the violin so well. A. That; what B. What; that C. That; that D. What; what 22. _____ helped to save the drowning girl is worth praising. A. Who B. Anyone C. Whoever D. The person

23. ____ she couldn’t understand was _____ fewer and fewer students showed interest in her lessons. A. What; why B. That; why C. What; because D. Why; that 24. It was ____ he said ___ disappointed me. A. What; that B. That; that C. What; what D. That;what 25. ___ is a fact that English is being accepted as an international language. A. There B. This C. That D. It 26. ______leaves the room last ought to turn off the lights. A. Anyone B. The person C. Whoever D. Who 27.________ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever 28. Is this factory you visited the other day? A. that B. where C. in which D. the one 29.When and why he came here ________ yet. A. is not known B. are not known C. has not known D. have not known 30. ________ is no reason for dismissing her. A. Because she was a few minutes late B. Owing to a few minutes late C. The fact that she was a few minutes late D. Being a few minutes late 31. ________ Tom liked to eat was different from ________. A. That…that you had expected B. What …that you had expected C. That…what you had expected D. What…what you had expected 32.________ we go swimming every day ________ us a lot of good. A. If...do B. That...do C. If...does D. That...does 33.It ________ Bob drives badly. A. thinks that B. is thought what C. thought that D. is thought that 34.It's uncertain ________ the experiment is worth doing. A. if B. that C. whether D. how 35.________ the boy didn't take medicine made his mother angry. A. That B. What C. How D. Which 36.____ we can't get seems better than ____ we have. A. What, what B. What, that C. That, that D. That, what 37.____ you don't like him is none of my business. A. What B. Who C. That D. Whether 38..____ we'll go camping tomorrow depends on the weather. A. If B. Whether C. That D. Where 39._________is going to do the job will be decided by the Party committee. A. That B. Why C. How D. Who 40._______we'll finish translating the book depends on the time.A. When B. Why C. What D. That 41.______he won't go there is clear to all of us.A. How B. What C. Why D. This 42.______the house will be built will be discussed at tomorrow's meeting. A. If B. Where C. That D. What 43_______you come or not is up to you. A. What B. If C. Why D. Whether 44._______team will win the match is a matter of public concern. A. Which B. That C. If D. How 45 Is this the factory ___ some foreign friends visited other day? A that B where C which D the one 46 Is this the factory ___ he worked ten years ago? A that B where C which D the one

1. what / that 2. Whether 21--30 BCAAD CCACC

3--10 BDA BCBBA 31--40 DDDCA ACBDA

11--20 BDAAD AAAAA 41--46 CBDAAB


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