4主语从句讲与练
第四讲主语从句讲与练
一、主语从句的概念与类型
主语从句在复合句中作主句的主语.例如:
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.什么导致了事故还完全是个谜. 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 comes to the party will receive a present.参加聚会的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.
二、引导主语从句的连接词有：
1,从属连词：that，whether；
2,连接代词：who, whose, whom, which, what, whoever, whomever, whichever, whatever等；
3,连接副词：when，where，how，why及whenever,wherever,however等。
1）从属连词：that
That she left him made him sad.
That he will come is certain.
特点：
Eg: ______ you don’t like him is none of my business.
A. What
B. Who
C. That
D.Which
注：that从句作主语时，常用it作形式主语，常见的句型有四种：
1. It + be + 名词/名词词组＋that从句
It is common knowledge that… …是常识
It is a surprise that …. 令人惊奇的是…
It is a fact that…… 事实是……
2. It + be + 形容词＋that从句
It is necessary that… 有必要…
It is important that …. 重要的是…
It is obvious that…… 很明显……
3. It + be + 过去分词＋that从句
It is believed that… 人们相信…
It is known to us/all that …. 众所周知…
It has been decided that……已经决定……
4. It + 不及物动词＋that从句
It appears that… 似乎…
It happens that …. 碰巧…
It occurred to me that…… 我突然想起
改写：
1.That we shall be late is certain.
--
2. That the earth is round is known to all.
--
3. That you missed the chance is a pity.
--
____ is reported that 3 college students died in the Yangtze River in order to save two boys.
A.It
B.As
C.That
D.What
链接虚拟语气
1.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可以省略。
2.用于It is important / natural / necessary /strange/ impossible that...句型中, 主语从句应使用虚拟语气, 谓语动词用“should + 动词原形”的形式, should可以省略。It is advised that the meeting _____(2005江西）
A. delay
B. be delayed
C. delays
D. should delay
It is strange that he _______so.（2008江西）
A. thinks
B. think
C. thought
D. will think
2）whether引导的主语从句
Whether he likes it is still a question.
Whether I will pass the exam is hard to say.
Whether we will go to the park depends on the weather.
特点:
______we will go camping tomorrow depends on the weather
A. If
B. Whether
C. That
D. Where
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.
你所需要的是更多的训练。
What I want to know is this. 我想知道的就是这事。
Whatever we do is to serve the people.
我们无论做什么都是为人民服务。
______ we can’t get seems better than_____ we have.
A. What; that
B. What; what
C. That; that
D. That; what
______ has helped to saved the girl is worth praising.(2004全国）
A. Who
B. The one
C. Anyone
D. Whoever 4）用连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。)
eg:Where we should leave it is a problem.
When they will come hasn’t been made pubic.他们什么时候来还不知道。
Eg:______ he was late for school again puzzled me.
A. Where
B. When
C. What
D. Why
_____and _____the 30th Olympic Games will be held is known to us all.
A. What; where
B. When; where
C. that ;whether
D. Why; that
思考的问题：
1、如何区分what 和that
2、如何区分what和whatever，who和whoever
3、如何区分whatever和however
4如何区分that和whether
三．选择题：
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. _____ some mammals came to live in the sea is not known.
A. Which
B. Since
C. Although
D. How
3. _____ we have achieved is attributed to the guidance of our parents.
A. Whoever
B. Whatever
C. However
D. That
4. _____ wealthy does not necessarily mean that a man is greedy.
A. For the reason that he is
B. Just because he is
C. The reason of being
D. That he is
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. _____ some mammals came to live in the sea is not known.
A. Which
B. Since
C. Although
D. How
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. _____ he is at work in the heart of the big city or at home in the quiet suburb, Dick’s life is tied to machines.
A. Whether
B. Till
C. If
D. Unless
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 should feel so upset.
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 fact that
17. _____ you nominate will be elected.
A. Who
B. Whom
C. Whomever
D. That’s
18. _____ book you borrow must be returned within a week.
A. What
B. Which
C. Whichever
D. That’s
19. _____ of us gets home first starts cooking.
A. Who
B. Which
C. Whichever
D. Anyone
20. _____orders he gives are obeyed.
A. Whichever
B. Which
C. Whatever
D. What
四、主语从句在写作中：
假定你是李华，自制一些中国结（Chinese knot）。给开网店的美国朋友Tom写封信，请他代卖，要点包括：
1.外观（尺寸、颜色、材料）
2.象征意义
3.价格
常用句型：
It goes without saying that
It is important\natural\ necessary\obvious\certain that
It is common knowledge that
It is well-known that
It is universally acknowledged that
What impressed\surprised\delighted most was that
What is far more important is that
What I want to point out is that
What is known to all is that
不能到那个音乐会真可惜。
保持生态平衡是重要的
大家都知道他曾是为优秀的歌手
必修三unit4语法讲解主语从句 Grammar
Section Ⅲ Grammar —主语从句 在主从复合句中，充当主语的从句，即为主语从句。 一、主语从句的连接词 1．连接词that和whether (1)that在从句中不充当任何句子成分，只起连接作用，但不可省略。 ①That Whitney Houston died upset her fans all over the world. 惠特尼·休斯顿的离世令全世界的粉丝感到难过。 (2) whether在从句中不充当任何句子成分，起连接作用，意为“是否”，不可省略。 ②Whether the plan will be carried out is still unknown. 这个计划是否会实施还不知道。 即学即练1 1－1.完成句子 ①她能来帮助我们使我们很高兴。 _________________________ made us very happy. ②他被选为(be chosen as)志愿者(volunteer)让我们感到高兴。 ____________________________ made us happy. ③我们明天是否举行派对取决于天气。 ____________________________ depends on the weather. ④(湖南高考)Everyone in the village is very friendly. It doesn't matter ________ you have lived there for a short or a long time. A．why B．HowC．whether D．when 2．连接代词(who，whose，whom，what，which，whichever，whoever, whomever, whatever 连接代词引导主语从句，在从句中可以作主语、宾语、表语或定语。 ①Who will take his place is not important.谁将代替他并不重要。 ②Whoever breaks the law should be punished. 无论是谁只要违法就应该受到惩罚。 3．连接副词(when, where, how, why等) 连接副词引导主语从句并在从句中作状语。 ③When we will have a meeting is an important question [点津] 主语从句中连接词的选择标准： ⅰ.根据连词在句子中所作的语法成分； ⅱ.根据连接词在从句中的意义。 2－1.用连接代词或连接副词填空并写出它们在从句中所作的语法成分 ①What role he will play in the film hasn't been known.______ ②Why John was late for the class has been unexplained._______ ③Which part of the country he will travel to needs discussing.____
史上最全的主语从句讲解及其练习
主语从句 一、主语从句的连词分三类 (1) 从属连词引导的主语从句(that whether if ) 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。That 引导主语从句通常用it作形式主语。 That she survived the accident is a miracle. 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不能在开头，只能用whether 。 Whether she is coming or not doesn 'matter too much. （2）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. 例女口Whatever we do is to serve the people. 注： whatever / whoever 的功用 。要注意和 whatever, whatever = anything that; whoever = anyone who whoever引导的让步状语从句的区别。 女口： 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. ) (3)用连接副词 when, where, why, how 引导的名词性从句(其连接副词有 含义,在句中作状语。)
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-
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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。 Howthishappenedisnotcleartoanyone. 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
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主语从句 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 matter 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。 如： 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引导的名词性从句(其连接副词有含义,在句中作状语。)
(完整版)主语从句练习及答案
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.
主语从句专项练习 (含答案)
主语从句专项练习(含答案) 1.________ makes mistakes must correct them. A. What B. That C. Whoever D. Whatever 2. It worried her a bit ____ her hair was turning grey. A. while B. that C. if D. for 3.When and why he came here ________ yet. A. is not known B. are not known C. has not known D. have not known 4. ________ 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 5. ________ 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 6.________ we go swimming every day ________ us a lot of good. A. If...do B. That...do C. If...does D. That...does
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 teacher 5.(________ 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--ever 1. 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。 ___________________ is at your service. 4. 不管他写什么都没关系。
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…
2021届高考英语二轮专题 语法：主语从句考点的四个要点和练习题(含答案)
2021届高考英语语法：主语从句考点的四个要点和练习题(含答案) 一、弄清主语从句有哪些引导词 可以用于引导主语从句的词语主要有五类：连词that和whether、连接代词、连接副词、关系代词型what、关系代词型-ever类词——在一个句子中到底该什么样的“引导词”，主要根据句子意思以及句子结构来确定。如： 1. That fashion differs from country to country may reflect the cultural differences from one aspect. 各个国家不同的时尚潮流从一个方面反映了各国之间的文化差异。 2. When the delayed flight will take off depends much on the weather. 那架延误的班机何时起飞在很大程度上取决于天气。 3. What we expect from you is working hard rather than hardly working. 我们期待你的是努力做事，而不是几乎什么都不做。 【分析】 第1句用that引导主语从句，that既不充当句子成分，也没有具体的含义； 第2句用when引导主语从句，when在主语从句中充当时间状语，表示“何时”； 第3句用what引导主语从句，what在主语从句中用作动词expect的宾语，在意思上相当于the thing that。 二、弄清什么情况下使用形式主语 为避免头重脚轻，人们通常会将主语从句置于句末，而在主语位置处使用形式主语it。如： 1. It is by no means clear what the president can do to end the strike. 完全不清楚总统要做什么才能结束那场罢工。 2. It remains to be seen whether the newly formed committee’s policy can be put into practice.
名词性从句(宾语从句、表语从句、主语从句)讲解与练习
名词性从句（宾语从句、表语从句、主语从句）六大基本句型 1主系表句型----- be （连系动词do） 2、主谓宾----- do（vt） 3、主谓----- do(vi)----(不及物动词) 4、主谓宾补----do(vt) 5、主谓宾宾---do(vt) 记双宾语的动词一定要记。 6、There be (不及物动词do)--------be (不及物动词) 宾语从句定义：在主谓宾句型的宾语的位置上把做为名词的宾语扩展成一个be句型或者do句型。可以用下列公式进行表示：主语+谓语+从句。 宾语从句的连词① that , ②whether(or not)或if; ③which(whichever), who(whoever)，whom(whomever) ，whose(whosever)，what(whatever); ④ when(whenever)，where(wherever)，why，how(however); ⑤ how many, how much, how long, how often，how soon 宾语从句的形式： 1、主谓宾句型的宾语从句: 作为名词的宾语扩展成一个be句型或者do句型。 He knows the news He knows that the teacher is in classroom 2、主谓宾宾---do(vt) 句型的宾语从句，把直接宾语变为一个be或do句型。 He tells me the news He tells the news to me He tells me that she is a teacher
主语从句超全练习题及答案
主语从句超全练习题及答案主语从句练题 I.用适当的词填空，使句子意思完整。 1.Why XXX. 2.The Foreign Minister said,“It is our hope that the two sides will work towards peace.” 3.Which team will win the match is still unknown. 4.XXX to the party will receive a present. 5.Whether Mary has left is still a n. 6.It’XXX. 7.XXX us. 8.We usually think what we can’t get seems better than what we have. 9.It is a fact that English is being accepted as an nal language. 10.Who is to be sent there to solve the problem hasn’t been decided.
II.下列各句中均有一处错误，请改正。 1.What the old man’s son wanted to know was where the gold had been hidden. 2.It XXX. 3.XXX his task on time is of great importance. 4.Whether the 2008 Olympic Games will be held in Beijing XXX(改为：That the 2008 Olympic Games will be held in Beijing XXX.) 5.XXX。XXX is to walk in space. 6.The last person leaving the room should turn off the lights. 7.The reason why they will solve the us problem today has not been decided yet. 8.It is still XXX. 9.It is currently unknown whether our spring sports meet will be held this week or not. 10.It'XXX. 主语从句研究指导：
主语从句超全讲解加练习
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, 防止“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
主语从句讲解及练习
主语从句讲解及练习 主语从句 （一）主语从句的标记 主语从句通常由连词that和whether (if)、连接代词或连接副词以及关系代词型what引导。 1. that引导 That he is still alive is a wonder. 他还活着，真是奇迹。 That we shall be late is certain. 我们要晚了，这是确定无疑的。 That he should have ignored the working class was natural. 他忽视工人阶级是很自然的。 That she is still alive is a consolation. 她还活着是使人感到宽慰的。That she became an artist may have been due to her father’s influence. 她成为画家可能是受她父亲的影响。 That you are coming to London is the best news I have heard this long time. 你将来伦敦是好久以来我听到的最好消息。 That she was chosen made a tremendous stir in her village. 她被挑选上，在她村子里引起很大轰动。 2. whether引导 Whether it will do us harm remains to be seen. 是否对我们有害还要看一看。 Whether they would support us was a problem. 他们是否会支持我们还是一个问题。 3. 连接代词引导 Whoever(=anyone who) fails to see this will make a big blunder. Whatever(=anything that) she did was reasonable. 无论什么 Anything that she did was reasonable. Whichever (of you) comes in first will receive a prize. 无论(你们)谁先到都可以得奖。
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。 （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引导的主语从句。 从属连词that，whether在主语从句中的作用只是引导主语从句，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引导的主语从句可用it代替，that 不可省略。 用作it作形式主语的结构： （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 …幸运的是It’s (im)possible…（不）可能…… It’s unlikely that…不可能It’s strange that…奇怪的是…… （2）It is/was +名词+that 从句 It’s a pity that…遗憾的是……It’s a fact that …事实是…… It’s good news that…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…真是可耻…… It’s common knowledge that …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…看来……It turns out that…结果……
英语主语从句(精讲精练)
主语从句 一・主语从句的结构＜主语从句+谓语动词+ （宾语）*状语或英他 That he failed the math exam surDrised all of us. That vou ioined us made all of us happy. That he didn't care for monev was a lie. Whether we'll go out for an outing depends on the weather. What he did added to our difficulty. What surprised everybodY was that he didn#t come to the meeting・ 二、主语从句的词有从J■连词、连接代词、连接團词. 从JR连词＜ that, vhether 1.that引导主语从句只起引导作用，本身无实际慈义.在主语从句中不充当任何成分，但不能省略. That he will win is certain. That the earth travels around the sun is a well-known fact. •注童：由that引导的主语从句仃时为了使句子结构平術，避免“头重脚轻”，常用it作形式主语, 而把从句放在后面. That he will win is certain. =lt is certain that he will win. That the earth travels around the sun is a well-known fact. =it is a a well-known fact that the earth travels around the sun 2.whether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,意思为“是否” Whether hell come here isn't clear.他是否会來这里还不请楚。 Whether you can do it by yourself mainly deoends on your ability.not your age. Whether she is comi ng or not doesn't matter. t who, vhoaie vhose, which, what, irtioever, whatever whichever 表疑问：who 谁.作主ifi.宾语.表语 whom 谁.作宾语 whos 谁的作定语 e which 哪一个作定语.主语，宾语，表语 what 什么作主语.宾语.表语 Who she is doesn't concern me. Who you are looking for is not known to us.