Unit 1 Discovering Useful Structures (ppt课件)-2022新人教版（2019）《高中英语》选择性必修第二册.pptx

1、Discovering Useful Structures Unit 1 Science and Scientists Understanding science and pushing the boundaries of science is what makes me immensely satisfied.Bill Gates Lead inThe next major explosion is going to be when genetics and computers come together.Alvin TofflerThe doctor has been taught to

2、be interested not in health but in disease.What the public is taught is that health is the cure for disease.Ashley MontaguResearch is what Im doing when I dont know what Im doing.Wernher von BraunUnderstanding science and pushing the boundaries of science is what makes me immensely satisfied.Bill Ga

3、tesThe next major explosion is going to be when genetics and computers come together.Alvin TofflerThe doctor has been taught to be interested not in health but in disease.What the public is taught is that health is the cure for disease.Ashley MontaguResearch is what Im doing when I dont know what Im

4、 doing.Wernher von Braun系动词+表语表语从句状态类：状态类：be动词动词,seem,appear,keep,remain.stay.感官类：感官类：look,smell,taste,sound,feel.变化类：变化类：become,get,turn,grow,fall,come,go.Summary PresentationEXAMPLEWhat was it that John Snow showed to the world?What John Snow showed to the world was how cholera could be overcome.1

5、.What was Snows discovery in two particular streets in London?Snows discovery in two particular streets in London was that _the cholera outbreak was _.so severe that more than 500 people died in ten days 2.What was Snow determined to find out during the 1854 outbreak in London?What Snow was determin

6、ed to find out was why _.the outbreak of cholera had caused over 500 deaths within ten days 3.What were the exact places Snow marked on the map?The exact places Snow marked on the map were where _.all those who died had lived/all the dead people had lived4.What was the finding that Snow announced?Sn

7、ows finding was that _.the water pump was to blame for the spread of cholera/the pump water carried cholera germs/water from the Broad Street pump had been infected by waste1.What John Snow showed to the world was _ cholera could be overcome.2.Snows discovery in two particular streets in London was

8、_ the cholera outbreak was so severe that more than 500 people died in ten days.3.What Snow was determined to find out was _ the outbreak of cholera had caused over 500 deaths within ten days.how thatwhy作状语作状语不作成分不作成分不作成分不作成分4.The exact places Snow marked on the map were _ all those who died had liv

9、ed/all the dead people had lived.5.Snows finding was _ the water pump was to blame for the spread of cholera/the pump water carried cholera germs/water from the Broad Street pump had been infected by waste.wherethat作状语作状语不作成分不作成分引导词在表语从引导词在表语从句中充当的成分句中充当的成分引导词引导词备注备注主语主语who/what/which/whoever/whatev

10、er/whichever根据句根据句子结构子结构和句意和句意选择选择宾语、表语宾语、表语whom/who/what/which/whoever/whatever/whichever定语定语whose/what/which状语状语when/where/why/how不充当成分不充当成分that/whether/as if/as though/because Summary 1.It was why he should not be found of corruption.2.The problem is who we can get to replace her.3.Thats where I

11、cant agree with you.4.This is how they overcome the difficulties.5.My strongest memory is when I attended an American wedding.6.He was sent to the hospital.Thats because he was ill.7.The question remains whether we can win the people.作状语作状语作宾语作宾语作状语作状语作状语作状语作状语作状语不作成分不作成分不作成分不作成分1 1、表语从句一定是个陈述语序。、表语

12、从句一定是个陈述语序。The question is when will he come.The question is when he will come.The question is whether is the enemy marching towards us.The question is whether the enemy is marching towards us.It looked as if had he understood this question.The question is if he has passed the test.The question is w

13、hether he has passed the test.2 2、if可以引导宾语从句，但是不能引导表语从句，可以引导宾语从句，但是不能引导表语从句，引导表语从句表达引导表语从句表达“是否是否”只能用只能用whether：3 3、主句时态和表语从句时态可以不一致。主句时态和表语从句时态可以不一致。The question is who will company me to Paris.The question is why he was absent.What I said was that I would give him a better one.4 4、that 引导表语从句时，和宾语

14、从句不同，引导表语从句时，和宾语从句不同，that 不不 可省略可省略。The problem is millions of people died of illnesses caused by smoking.The boy believes he will travel through space to other planets.as if that what who when how why whose which whetherA.Absolutely.You may not believe it,but that was _ happened at the initial stag

15、e of our groups research on developing a vaccine for malaria.B.Yes,it is.And it seemed _ all the theories were useful,but the fact was _ we couldnt persuade one another that one theory was better than another.whatas ifthat PracticeC.Exactly.The problem was not about _ all our theories were equally g

16、ood,but in deciding _ _ theory to depend upon.D.We realised that what we cared about was not _ aspect we needed to develop a theory in,but rather _ we can reduce the cost of a vaccine without reducing its effect!E.Youre right.At last,we became focused on the key issue,which was _ we had to carry out

17、 the research in the first place.whetherwhich/what/whosewhich/whathowwhy as if that what who when how why whose which whetherObjective ClauseA.Absolutely.You may not believe it,but that was what happened at the initial stage of our groups research on developing a vaccine for malaria.B.Yes,it is.And

18、it seemed as if all the theories were useful,but the fact was that we couldnt persuade one another that one theory was better than another.C.Exactly.The problem was not about whether all our theories were equally good,but in deciding which/what/whose theory to depend upon.D.We realised that what we

19、cared about was not which/what aspect we needed to develop a theory in,but rather how we can reduce the cost of a vaccine without reducing its effect!E.Youre right.At last,we became focused on the key issue,which was why we had to carry out the research in the first place.Maria:This mix of theory an

20、d data is one of the key characteristics of what we call science.David:Maria:With your theoretical framework?David:Maria:Deciding on a theory is definitely of critical importance.David:Absolutely.You may not believe it,but that was what happened at the initial stage of our groups research on develop

21、ing a vaccine for malaria.Exactly.The problem was not about whether all our theories were equally good,but in deciding which/what/whose theory to depend upon.Yes,it is.And it seemed as if all the theories were useful,but the fact was that we couldnt persuade one another that one theory was better th

22、an another.Maria:This was when you should have calmed down and got down to doing some solid work.David:Maria:So what happened in the end?David:Youre right.At last,we became focused on the key issue,which was why we had to carry out the research in the first place.We realised that what we cared about was not which/what aspect we needed to develop a theory in,but rather how we can reduce the cost of a vaccine without reducing its effect!