【课件】Unit 5 Discover Useful Structures 主语从句课件-2022-2023学年高中英语人教版（2019）选择性必修第一册.pptx

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1、Unit 5Unit 5Noun Clause名词性名词性从句从句 句子句子 类型类型简单句简单句并列句并列句复合句复合句主句主句形容词性从句形容词性从句 名词性从句名词性从句副词性从句副词性从句从句从句sentence types:(定语从句定语从句)(状语从句状语从句)名词性从句主语从句宾语从句表语从句同位语从句What I can see is.What can you see in the picture?What I can see is a face of an elderly woman.What I can see is a sight of a beautiful girls

2、 back.在复合句中充当主语作 用:位 置:主句谓语 或 系动词之前1.That he will pass the exam is certain.2.Whether he will pass the exam is uncertain.3.Who will go makes no difference.4.What we need is more time.5.Which book I shall choose hasnt been decided.温馨提示：先找谓语动词找出下列句子中的主语从句找出下列句子中的主语从句思考：思考：主语从句的连接词有哪些？主语从句的连接词有哪些？分别有什么功

3、能？分别有什么功能？从属连词从属连词(不作成分）不作成分）连接代词连接代词（作主作主,宾宾,表表,定语定语）连接副词连接副词（作状语）（作状语）what，who,whom,which,whose,wh+everhow,when,where,why主语从句的连接词主语从句的连接词主语从句的连接词主语从句的连接词that(无意义无意义),whether(是否是否)(不能省略不能省略)devote.to.move all people around the worldYuan devoted all his life to developing hybrid rice moved all peopl

4、e around the world.That 从属从属 连词连词That不做成分，没有意义，不能省略tackle the situationdepend on his ability He can tackle the situation depends on his ability.ThatWhether 从属从属 连词连词whetherwhether不做成分,但有意义，表“是否”,不能用if代替Whether we can go to picnic tomorrow is still a question.That the wounded soldier is still alive i

5、s a wonder.That Mr.Zhou will come is certain.Whether the work can be completed on time is doubtful._用用whether或或that填空。填空。从属连词从属连词(不作成分）不作成分）连接代词连接代词（作主（作主,宾宾,表表,定语）定语）连接副词连接副词（作状语）（作状语）that(无意义无意义),whether(是否是否)(不能省略不能省略)主语从句的连接词主语从句的连接词主语从句的连接词主语从句的连接词the cat domadeWhat the cat did made the baby cr

6、y.cry连接代词做成分（主语、宾语、表语），有意义，做成分（主语、宾语、表语），有意义，不能省略。不能省略。从属连词从属连词(不作成分）不作成分）连接代词连接代词（作（作主主,宾宾,表表,定语定语）连接副词连接副词（作状语）（作状语）what，who,whom,which,whose,wh+ever主语从句的连接词主语从句的连接词主语从句的连接词主语从句的连接词that(无意义无意义),whether(是否是否)(不能省略不能省略)attain successunknown He attained success is unknown.How连接副词做成分（状语），有意义，不能省略。从属连词

7、从属连词(不作成分）不作成分）连接代词连接代词（作主作主,宾宾,表表,定语定语）连接副词连接副词（作状语）（作状语）what，who,whom,which,whose,wh+everhow,when,where,why主语从句的连接词主语从句的连接词主语从句的连接词主语从句的连接词that(无意义无意义),whether(是否是否)(不能省略不能省略)原则：原则：缺什么补什么缺什么补什么“缺缺什什么么补补什什么么”原原则则缺主语，指人用缺主语，指人用_，指物用，指物用_缺宾语，指人用缺宾语，指人用_，指物用，指物用_缺时间状语用缺时间状语用_；地点状语用地点状语用_；原因状语用原因状语用_；方

8、式状语用方式状语用_；定语用定语用_；什么都不缺用什么都不缺用_。whowhowhatwhatwho/whomwho/whomwhatwhatwhenwhenwherewherewhywhyhowhowwhich/whosewhich/whosethat/whetherthat/whether（是否）（是否）主语从句的连接词主语从句的连接词主语从句的连接词主语从句的连接词探寻规律探寻规律1 1：主语从句主语从句 主谓一致主谓一致 问题问题1.Whether the patient will be taken _ unknown.2.When and where the patient will

9、 be taken _ unknown.3.When the task can be finished and whether he can have a rest _ unknown.4.What he wants most _ staying with his family.What they need _ masks(口罩口罩).主句的谓语动词，大多数使用主句的谓语动词，大多数使用_ (单数？复数？单数？复数？)由两个连接词引导同一个主从，谓动使用由两个连接词引导同一个主从，谓动使用_(单数？复数？单数？复数？)主语为主语为and连接的两个主从时，谓动使用连接的两个主从时，谓动使用_(单

10、数？复数？单数？复数？)what在主从中做宾语时，谓语的单复数取决它后面的表语。在主从中做宾语时，谓语的单复数取决它后面的表语。单数单数单数单数复数复数isisareis are探寻规律探寻规律2 2：主语从句的语序主语从句的语序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，并总结规律主语从句一律用主语从句一律用_，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.例例1.When will he come is not known.How we go for a picnic should be discussed.How

11、 do we go for a picnic should be discussed.陈述语序陈述语序探寻规律探寻规律3 3：主语从句太长怎么办？主语从句太长怎么办？That all countries work together is important.用一个用一个 It 来解决问题！来解决问题！It is important that all countries work together.主语从句为了避免头重脚主语从句为了避免头重脚轻现象轻现象,用用itit做做_，而，而把从句放在后面充当把从句放在后面充当_。真正的主语真正的主语形式主语形式主语Can you rewrite the

12、following sentences.1.That the earth turns around the sun is known to all.2.That they are badly in need of help is quite clear.It is known to all that the earth turns around the sun.It is quite clear that they are badly in need of help.uIt+be+名词 that从句 It is a pity that 很遗憾很遗憾 It is a fact that 事实是事

13、实是 uIt+be+形容词 that从句 It is obvious that 显然显然.It is important that.重要的是重要的是 uIt+be+过去分词 that从句 It is said that.据说据说.It is known that 众所周知众所周知形式主语常用句型：形式主语常用句型：uIt+特殊不及物动词+that从句 It seems/appears.that.似乎似乎 It happened(to sb.)that.（某人）碰巧（某人）碰巧 It occured to sb that.(某人某人)突然想起突然想起.uIt+及物动词+宾语+that从句 It

14、interests me whether you succeed or not.It surprised him that they came to visit him suddenly.形式主语常用句型：形式主语常用句型：1._(可能可能)she will come back tomorrow.2._(很明显很明显)this measure is effective.3._(很遗憾很遗憾)we lost the match.4._(这是事实这是事实)he cheated in the exam.5._(据报道据报道)20 people were killed in the accident.

15、6._(建议建议)we should eat more vegetable and do more exercise.7._(碰巧碰巧)I came into the office at that time.8._(我突然想起我突然想起)I forget tosend the letter.It is possible thatIt is obvious thatIt is a pity thatIt is a fact thatIt is reported thatIt is suggested thatIt happened thatIt occurred to me that定 义主语主

16、语从句从句引导词形式主语主谓一致总 结 作用，位置作用，位置作用，位置作用，位置 从属连词，连接代从属连词，连接代从属连词，连接代从属连词，连接代词，连接副词词，连接副词词，连接副词词，连接副词 单个主语从句-单数多个主语从句-复数 It Itbebe形容词/名词短语/过去分词/不及物动词thatthat从句语序 陈述语序1.据说明年高一学生要学新教材据说明年高一学生要学新教材.2.事实是他们靠自己完成了所有的任务事实是他们靠自己完成了所有的任务.3.碰巧他们已经参加过军训了碰巧他们已经参加过军训了.4.众所周知众所周知,好的身体是第一财富好的身体是第一财富.5.我们应该养成好的学习习惯，这很

17、重要我们应该养成好的学习习惯，这很重要.It was a fact that they finished all the work by themselves.It happened that they had had their military training.It is well-known that good health is the first wealth.=What is well-known is that good health is the first wealth.It is said that the senior students will learn the n

18、ew textbook next year.Application:It is important that we(should)form a good habit of studying.1.据说明年高一学生要学新教材据说明年高一学生要学新教材.2.事实是他们靠自己完成了所有的任务事实是他们靠自己完成了所有的任务.3.碰巧他们已经参加过军训了碰巧他们已经参加过军训了.4.众所周知众所周知,好的身体是第一财富好的身体是第一财富.5.我们应该养成好的学习习惯，这很重要我们应该养成好的学习习惯，这很重要.Application:Pick out one number and finish the

19、task in it.16781011121413151692345GameTime Where he comes from are a mystery.单句改错单句改错is1 point从句作主语，谓语动词要用从句作主语，谓语动词要用单数单数 _ they are most interested in is how they can produce more and better cars.A.That B.Who C.What D.When单项选择单项选择2 pointswhat 在从句中作在从句中作宾语宾语，译为，译为“什么什么”他他是否是否是我的孩子是我的孩子仍然是个问题。仍然是个问题

20、。_ remains a question.Whether he is my child3 points完成句子完成句子whether放在放在句首句首引导主语从句，意为引导主语从句，意为“是否是否”That is obvious that he didnt pass the exam.单句改错单句改错It1 pointit充当形式主语，充当形式主语，that从句为真正的主语从句为真正的主语众所周知，众所周知，雨天要穿雨鞋雨天要穿雨鞋。_we wear rain shoes on rainy days.It is known that完成句子完成句子3 points_is rest.我需要的我需

21、要的就是休息。就是休息。What I need3 points完成句子完成句子 If she will come or not is still a question.单句改错单句改错Whether1 pointwhether位于句首引导主语从句，但的位于句首引导主语从句，但的if不能。不能。What will be our monitor has not been decided.单句改错单句改错Who1 point缺主语，缺主语，指人指人应该用应该用who。That he wants to visit is the Great Wall.单句改错单句改错What1 point缺宾语，缺宾语

22、，指物指物，用，用what。_ is attracted by her.无论谁见到这个女孩无论谁见到这个女孩都被她吸引。都被她吸引。Whoever sees the girl3 points完成句子完成句子 _ the boy didnt take medicine made his mother angry.A.That B.What C.How D.Which单项选择单项选择2 points不缺成分，没有意义，不能省略，用不缺成分，没有意义，不能省略，用that That we go swimming every day _ us a lot of good.A.do B.doing C.

23、does D.done 单项选择单项选择2 points从句作主语，谓语动词要用从句作主语，谓语动词要用单数单数_Yao Ming got the highest points in the match.据报道，据报道，姚明在这场比赛中得了最高分。姚明在这场比赛中得了最高分。It is reported that 3 points完成句子完成句子 _ they can solve the question is still unknown.A.If B.Which C.Whether D.What单项选择单项选择2 points不缺成分，表示不缺成分，表示“是否是否”，用，用whether。_

24、 is your hairstyle.我最喜欢的我最喜欢的是你的发型。是你的发型。What I like most3 points完成句子完成句子 _ is a fact that English is accepted as an international language.A.There B.This C.That D.It单项选择单项选择2 pointit充当形式主语，充当形式主语，that从句为真正的主语从句为真正的主语Finish exercise 3 on page 29.Finish Using Structures on page 64 of the Workbook.Thank you!Bye Bye