Unit 5 WORKING THE LAND Discovering Useful Structures主语从句（ppt课件）-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、 Whats the subject?什么是主语？什么是主语？1.Yuan Longping is one of Chinas most famous scientists.2.He made large donations to support agricultural research.3.To develop the first hybrid rice cost him a lot of time.4.Keeping all the people away from hunger is his lifelong pursuit.5.What he really care about wa

2、s not money or celebrity.结论：主语是句子说明的人或事物，一般放在_。一个句子来充当_叫主语从句。句首句首主语主语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 back.什么是主语从句什么是主语从句定义：主语从句就是在复合句中作主语的名词性从句，通常放在主句谓语动词之前.What I can

3、see is a sight of a beautiful girls back.1.That he will pass the exam is certain.2.Whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.3.Who will go makes no difference.4.What impresses people most about Yuan Longping is his ongoing abilit

4、y to fulfil his dreams.5.How this could be done was a challenging question at the time.6.Which book I shall choose hasnt been decided.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？分别有什么功能？主语从句的连接词有哪些？分别有什么功能？1.That he will pass the exam is certain.2.Whether he will pass the exam is uncertain.uthat _成分，成

5、分，_意义，意义，u_省略。省略。uwhether _成分，成分，_意义，意义，u译为译为_。不做不做是否是否无无不能不能不做不做有有 Compare and Discover 1devote.to.move all people around the worldYuan devoted all his life to developing hybrid rice moved all people around the world.That袁隆平为培养杂交水稻奉献了一生，感到了全世界的人。袁隆平为培养杂交水稻奉献了一生，感到了全世界的人。tackle the situationdepend o

6、n his ability He can tackle the situation depends on his ability.ThatWhether他是否能应对这情况取决于他的能力。他是否能应对这情况取决于他的能力。1.Who will take part in the meeting has not been decided.2.What she said is true.3.Which book I shall choose hasnt been decided.4.Whom she saw didnt matter.uwho在主语从句中充当在主语从句中充当 _,u译为译为 _。uwh

7、at在主语从句中充当在主语从句中充当 _,u译为译为 _。uwhich在主语从句中充当在主语从句中充当 _,u译为译为 _。uwhom?成分的问题，思考？成分的问题，思考？u全面思考全面思考主语，主语，宾语宾语谁谁主语主语，宾语，宾语东西东西定语定语哪一哪一 Compare and Discover 2_ I like most is your hairstyle.我最喜欢的是你的我最喜欢的是你的发型。发型。What1.Whoever leaves the room last ought to turn off the lights.2.Whatever he did was right.Co

8、mpare and Discover 3uwhoever在主语从句中在主语从句中充当充当 _,译译为为 _。uwhatever 在主语从句中在主语从句中充充当当 _,译译为为 _。主语主语无论谁无论谁宾语宾语无论什么无论什么 1.When they will start is not known yet.2.Where she is from is unknown.3.Why he was late is not important now.4.How he became a great scientist is known to us all.uwhen在主语从句中充当在主语从句中充当 _,

9、u译为译为 _。uwhere在主语从句中充当在主语从句中充当 _,译为译为 _。uwhy在主语从句中充当在主语从句中充当 _,u译为译为 _。uhow在主语从句中充当在主语从句中充当 _,u 译为译为 _。状语状语何时何时状语状语何地何地状语状语为什么为什么状语状语怎样怎样 Compare and Discover 4attain successunknown He attained success is unknown.How连接副词他怎么取得成功的，这不太了解。他怎么取得成功的，这不太了解。功能功能连接词连接词不作成分不作成分that,whether作主、宾、表、作主、宾、表、what,w

10、ho,whom,wh+ever作定语作定语which,whose,作状语作状语when,where,why,how Usage of the ConjunctionsSummary“缺什么补什么缺什么补什么”原则原则缺主语，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_，缺，缺“是否是否”_”_whowhowhat,what,whateverwho/whomwho/whomwhat,what,whateverwh

11、enwhenwherewherewhywhyhowhowwhich/whosewhich/whose主语从句的连接词主语从句的连接词thatthatwhetherwhether成分和语义成分和语义1.remains an unanswered question.2.is an important topic for us to research.3.is that these chemicals may even cause cancer.4.these vegetables can even be planted without any soil through this new techn

12、ology.5.is the reason why some people prefer to live in the country rather than in the city.A.What worries many peopleB.That the lifestyle is slower and healthierC.How we can find a suitable solution to produce sufficient food D.When these wheat farmers will join this pilot experiment E.It amazed al

13、l of us thatDCAEB1.D When these wheat farmers will join this pilot experiment(初步试验)remains an unanswered question.这些小麦农户什么时候会加入预实验仍然不得而知。Match the sentence parts,and then translate the completed sentences into Chinese.Activity 22.C How we can find a suitable solution to produce sufficient food while

14、 keeping the environment safe is an important topic for us to research.如何能够找到一个合适的解决办法，在保证环境安全的同时，生产足够的粮食，是一个需要我们研究的重要课题。3.A What worries many people is that these chemicals may even cause cancer.令很多人所担心的是，这些化学制品甚至可能导致癌症。4.E It amazed all of us that these vegetables can even be planted without any s

15、oil through this new technology.令我们所有人惊讶的是，通过这种新技术，可以无土栽培这些蔬菜。5.B That the lifestyle is slower and healthier is the reason why some people prefer to live in the country rather than in the city.有些人更喜欢住在乡下而非城市的原因是前者生活节奏更慢、生活方式更健康。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 _

16、unknown.2.When and where the patient will be taken _ unknown.3.When the task can be finished and whether he can have a rest _ unknown.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_(单数？复数？)主语为and连接的两个主从时，谓动使用_(单数？复数？)单数单数单数复数isisare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

17、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.1.When will he come is not known.How we go for a picnic should be discussed.How do we go for a picnic should be discussed.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

18、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_。真正的主语形式主语Can you rewrite the 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 ear

19、th 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：uIt+特殊不及物

20、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 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：1._(可能)she will come back tomorrow.2._(很明显)this measure is effec

21、tive.3._(很遗憾)we lost the match.4._(这是事实)he cheated in the exam.5._(据报道)20 people were killed in the accident.6._(建议)we should eat more vegetable and do more exercise.7._(碰巧)I came into the office at that time.8._(我突然想起)I forget tosend the letter.It is possible thatIt is obvious thatIt is a pity that

22、It is a fact thatIt is reported thatIt is suggested thatIt happened thatIt occurred to me that定 义引导词形式主语主谓一致总 结单个主语从句-单数多个主语从句-复数Itbe形容词/名词短语/过去分词/不及物动词that从句语序陈述语序talk about your idol(偶像)-at least one sentence his/her determination to tackle the crisis of his/her intense effort to overcome his/her

23、dream to develop his/her love and care for he/she succeeded in he/she never gave up he/she is devoted to What impresses me most is that What makes him/her a great is that It is important that Whether depends on That is his/her most important quality.Possible version When talking about Yuan Longping,

24、the famous scientist in China,what impresses me most is that his determination to overcome the enormous difficulties troubling most people at that time.It is his most important quality that he is devoted to his career.Besides,that he never gives up learning and strives to realize his dreams deeply touches me.In my opinion,how he loves and cares for farmers drives him to go on and make great achievements.