英语必修3Unit4主语从句

1、I. 根据下列各句句意及所给单词的根据下列各句句意及所给单词的首字母或汉语提示，写出该单词的首字母或汉语提示，写出该单词的正确形式。正确形式。1. Her school report shows that she is weak in English and _ (生生物物).2. He wanted to be a _ (物物理学家理学家) and devote himself to scientific research.biologyphysicist练习坊练习坊Who will win the match is still unknown. I want to know what he

2、 has told you. The fact is that we have lost the game. The news that we won the game is exciting. 主语从句主语从句宾语从句宾语从句表语从句表语从句 名词性从句名词性从句同位语从句同位语从句【寻规找矩寻规找矩】请观察下列句子请观察下列句子, 注意主注意主语从句的用法。语从句的用法。1. That the earth travels round the sun is a well-known fact.2. It is uncertain whether the artist can do it or

3、 not. 3. Who will act the lead in the play has not been decided yet.4. Where the young man has gone is not known.5. It is not yet decided when and where the test will be given.主语从句：主语从句：，引导主语从句的，引导主语从句的有连词有连词that ，whether， 连接代词连接代词who ，what ，which， 连接副词连接副词when，where， how， why等。等。 1）从属连词从属连词：that， w

4、hether等等.that 引导主语从句只起引导作用，本身无实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，但际意义，在主语从句中不充当任何成分，但。 That people cut down too many trees destroyed the balance of nature.Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.It was not clear whether

5、 the solid shape would last or not. Subject ClauseSubjectFormed SubjectWhether the solid shape would last or not was not clear.Real引导主语从句在句首只能用引导主语从句在句首只能用whether,有有it作形式主语的作形式主语的whether/if都可以都可以.Conclusion:ifIf 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,

6、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.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: It is a pity/shame

7、 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) Its 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

8、 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 happened that. 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

9、 to sent the letter.It happened thatIt occurred to me that4) 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;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 poin

10、ted 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 exercise.It is reported thatIt is suggested that2.3)。WhyWhy they suddenly disappeared they suddenly disappeared still remains a mystery.still remains a mystery.WhenWhen they will

11、set off they will set off is not is not decided.decided.WhereWhere she is from she is from is unknown.is unknown.HowHow we will paint the house we will paint the house has has not been decided.not been decided.Complete the sentences using what, whether, where, when， who, why, how or that.1.(_ is nee

12、ded 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.4.(_ can join in the sport meet) is decided by the teacher.5.(_ it will rain or not) is not clear.7.(_ the earth is a solid ball) is known to us all.6. (_ the earth

13、 is becoming warm) is a good topic for research.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:Summary:Subject Clause【常见错误展示常见错误展示】下列各句均有一处下列各句均有一处错误，请改正并分析错误的原因。错误，请改正并分析错误的原因。1. Light travels faster than sound is common knowledge.2. If shes coming or not doesnt matter much.ThatWhether3. That

14、 the professor said is of great importance.4. Where will the trees be planted has not been decided.What Pick up one number and finish the task in it, then you can get some points.1234567891011 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 30Correct or not?*When the meeting will be held havent

15、 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 worth seeing.2._ we shall attend the meeting hasnt been decided yet. 用用whetherif填空填空whetherWhether10Transl

16、ate the sentence*_(他他们很需要帮助们很需要帮助)is quite clear. That they are badly in need of help20talk 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

17、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if10Translate the sentence*It is known to us_(马克马克.吐温怎样成吐温怎样成为一位伟大的作家为一位伟大的作家). how Mark Twain became a great writer20report , get the highest points, match It is reported that Yao Ming got the highest points in the match.Make a sentence30 Correct o

18、r not?Pay attention:注意注意虚拟语气虚拟语气在名词性从句中的在名词性从句中的使用！在使用！在It is necessary important natural. that句型中，从句的谓语要用句型中，从句的谓语要用should+do 的形的形式式It is important that we should finish.*It is important that we will finish the work on time. 10 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，宾语，故用作成分的故用作成分的what来

19、引导，而不用来引导，而不用that。What she wants to know is.*That she wants to know is when the party will be held . 10 Correct or not?Pay attention:由由that引导的主语从句放在句引导的主语从句放在句首，首，that 不能省略不能省略。That he will give up*He will give up his job surprises all of us.10Translate the sentence*_（她是否出席会议）（她是否出席会议）is not certain

20、.Whether she will attend the meeting20It makes the teacher angry that the child doesnt know the answer.teacher angryDont know the answerMake a sentence301. 1. 他在找什么与你无关。他在找什么与你无关。用主语从句翻译下列句子。用主语从句翻译下列句子。2. 2. 他喜欢这种书，这件事非常有趣。他喜欢这种书，这件事非常有趣。3. 3. 他是否能来仍然是个问题。他是否能来仍然是个问题。主语从句的规律：主语从句的规律：找出下列句子中的错误，并总结规律找出下列句子中的错误，并总结规律例例1.When will he come is not known.规律一、规律一、主语从句一律用陈述语序，主语从句一律用陈述语序， 即主语在前，谓语在后。即主语在前，谓语在后。正正：When he will come is not known.主语从句的规律：主语从句的规律：例例2. He will not come to the meeting this evening is true.正：正：That he will not come to the meeting this evening is true.规律二、规律二、连词连词that