Unit2Period3Discoveringusefulstructures(课件)(新教材)高中英语(人教版选择性必修第二册).pptx-(课件无音视频)

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1、Period 3 Discovering useful structuresSubject ClausesUnit 2 Bridging Cultures1.Enable the Ss to master the usage of subject clauses in this unit.2.Enable the Ss to use the subject clauses patterns flexibly.3.Train the Ss to apply some skills by doing the relevant exercises.Jacks story is moving.What

2、 Jack did is moving.主语主语在句中充当主语的从在句中充当主语的从句叫做主语从句。句叫做主语从句。主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前;或由形式主语it代替,而本身放在句子末尾。1.What seemed strange before now appears quite normal to Xie Lei.2.What surprised Xie Lei was that she found herself speaking up in class after just a few weeks.3.It is important that Xie Le

3、i keeps a balance between her studies and her social life.5.How the book will sell depends on its author.主语从句的连接词That he will win is certain.Whether hell join us in the discussion is of great importance.1.从属连词:从属连词:that:只起引导作用,本身无实际意义,不充当任何只起引导作用,本身无实际意义,不充当任何成分,但成分,但不能省略不能省略。whether:意为Why he came h

4、ere is not known.How we can protect the grain from damp needs to be discussed.(1)it作形式主语,从属连词that引导的从句作真正的主语。Itbe形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable等)that从句。It isnt likely that I should accept such an offer as that.我不可能接受像那样的帮助。Itbe名词词组(no wonder

5、,an honor,a good thing,a pity,no surprise等)that从句。Its no wonder that he didnt want to go.难怪他不想去。1.(_ is needed for success)is your hard work.2.(_ _can join in the sport meet)is decided by the teacher.3.(_ it will rain or not)is not clear.4.(_ the earth is becoming warm)is a good topic for research.5

6、.(_ the earth is a solid ball)is known to us all.重难点突破重难点突破分析句分析句子成分子成分缺主宾缺主宾表定表定缺状缺状语语用连接代用连接代词词 用连接副用连接副词词 根据语意缺什么根据语意缺什么补什么都不缺用补什么都不缺用that或或whether1._ makes dogs identify patients with cancer is a mystery.2._ he succeeded in applying for the position made his family happy.3.Its not sure _team wil

7、l win the match.that、what、which区别区别that 在从句中在从句中不作成分,只起不作成分,只起连接作用,无意连接作用,无意义;义;what在从句中在从句中作主宾表或定作主宾表或定语,语,“what 什什么么,或所或所”which在从句中在从句中作主宾表或定语,作主宾表或定语,which“哪一个哪一个”有选择范围。有选择范围。1._ breaks the law will be punished._breaks the law,he/she will be punished.2._ is known to us all is that some students c

8、heat in exams at school._ is known to us all that some students cheat in exams at school._ is known to us all,some students cheat in exams at school.WhoeverNo matter whoWhoeverWhatItAs对比训练对比训练1.It is a good idea that/an honor/my pleasure that 2.It is natural/strange/essential/important.that sb.shoul

9、d do 3.It seems/appears/happened that 4.It is reported/said that 据报道据报道 It is required/suggested that sb(should)do用用it 作形式主语的句型作形式主语的句型:主谓一致主谓一致1.When he will do the experiment _(have)not been decided yet.2.What we badly need _ enough time to sleep.3.What the boy wants _ some books of great benefit.

10、hasisare从句做主语谓语一般用从句做主语谓语一般用单数单数 what从句根据它所指代从句根据它所指代的内容确认谓语单复数。的内容确认谓语单复数。WhenwhatWhatWhere改错改错1.It all depends on if they will do their best.2.Is that you told true?3.First of all,we should prevent him from doing it is the most important.4.We all thought it is a pity which the concert was put off.

11、whetherwhatthatthat写作练习写作练习李华收到美国朋友Mike的来信,听说港珠澳大桥已全线通车,这是建筑史上一大奇观。想向李华了解具体详情。请你回信作个简要介绍。Dear Mikke,I have heard from you.You would like to learn about the Hongkong-Zhuhai-Macao Bridge.1.Here is some relevant information about it.Its total length is 49.97 kilometers.It strated in December 2009.2.Its

12、 the worlds longest sea-crossing bridge,which amazes the world.3.At the beginning,the passage money concerned some people a lot.4.Besides,people didnt know whether the project would affect white dolphins.These had attracted the chief engineersattention.Before the construction,many meetings had been

13、held.5.At the meeting,the time of completion had been decided.6.Leaders had discussed how to construct the bridge for many times.With the workers efforts,the bridge had been opened to traffic in October,2018.7.The experts predict the life span of the bridge is set at 120 years.8.It reduces travel ti

14、me from Hongkong to Macau or Zhuhai from over three hours to just half an hour.9.The bridge makes it convenient for people to travel.Thanks you for your close attention.yours,Li Hua RewriteDear Mikke,I have heard from you.You would like to learn about the Hongkong-Zhuhai-Macao Bridge.1.Here is some

15、relevant information about it.Its total length is 49.97 kilometers.It strated in December 2009.2.Its the worlds longest sea-crossing bridge,which amazes the world.3.At the beginning,the passage money concerned some people a lot.What I want to tell you here That the worlds the longest sea-crossing br

16、idge is opened amazes the world.What concerned some people most was the passage money.4.Besides,people didnt know whether the project would affect the white dolphins.This had attracted the chief engineers attention.Before the construction,many meetings had been held.5.At the meeting,the time of comp

17、letion had been decided.6.Leaders had discussed how to construct the bridge for many times.With the workersefforts,the bridge has been opened to traffic in October,2018.Whether the project would affect the white dolphins had attracted the chief engineers attention.When the bridge would be completed

18、had been decided at the meeting.How the bridge would be constructed had been discussed for many times.7.The experts predict the life span of the bridge is set at 120 years.8.It reduces travel time from Hongkong to Macau or Zhuhai from over three hours to just half an hour.9.The bridge makes it conve

19、nient for people to travel.Thanks you for your close attention.yours,Li Hua Its predicted that the life span of the bridge is set at 120 years.That the Hongkong-Zhuhai-macao Bridge is built will reduce travel time from over three hours to just half an hour.That the bridge is built makes it convenient for people to travel.that whether what(ever)which(ever)who(ever)Whom(ever)whose when where how why whenever wherever however 连接词连接词连接连接代词代词连接连接副词副词无意义无意义是否是否不做成分不做成分作主、宾、表作主、宾、表 、定语、定语作状语作状语谓语一般用单数从句用陈述语序不能省略关联词

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