Unit 1Period 3 Discover useful structures ppt课件-（2022新）人教版高中英语选择性必修第二册.pptx

1、 Period 3 Discover useful structures Science and Scientists Unit 1 Lead inRead the quotes and find the clauses in them.Understanding science and pushing the boundaries of science is what makes me immensely satisfied.whatLead inRead the quotes and find the clauses in them.The next major explosion is

2、going to be when genetics and computers come together.whenLead inRead the quotes and find the clauses in them.The 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.thatLead inRead the quotes and find the clauses in

3、them. Research is what I m doing when I dont know what Im doing.whatUnderline all the examples in the reading passage where noun clauses are used as the predicative. Then state their meaning and functions.1.One theory was _2. Another was_3. The truth was_that cholera was caused by an infection from

4、germs in food or water.that bad air caused the disease.that the water from the Broad Street pump had been infected by waste.To sum upS+V+Plink verbPredicative 表语表语be动词;表示变化的词：go, get, turn, become.It look as ifIt turned out thatPredicative is used _ the link verb.behindA sentence which is used as pr

5、edicative is Predicative Clause表语从句表语从句.Grammar RulesDiscover useful structuresAnswer the following questions using the information from the reading passage as well as the predicative clauses.EXAMPLE:What Was it that John Snow showed to the world?What John Snow showed to the world was how cholera co

6、uld be overcome.1. What was Snows discovery in two particular streets in London?Snows discovery in two particular streets in London was that_more than 500 people died in ten days.Discover useful structuresAnswer the following questions using the information from the reading passage as well as the pr

7、edicative clauses.2. What was Snow determined to find out during the 1854 outbreak of cholera in London? What Snow was determined to find out was why_the cholera outbreak was so severe in the two particular streetsDiscover useful structuresAnswer the following questions using the information from th

8、e reading passage as well as the predicative clauses.3. What were the exact places(Snow marked on the map? )The exact places Snow marked on the map were where_4. What was the finding that Snow announced?Snows finding was that_all those who died had livedthe pump water carried cholera germs.1.What Jo

9、hn Snow showed to the world was cholera could be overcome.2.Snows discovery in two particular streets in London was the cholera outbreak was so severe that more than 500 people died in ten days.To Sum upFill in a suitable word to complete the sentencehowthat3.What Snow was determined to find out was

10、 the outbreak could have caused over 500 deaths within ten days.To Sum upFill in a suitable word to complete the sentence4.The exact places Snow marked on the map were all the dead people had lived.5.Snows finding was it was the pump that was to blame for the spread of cholera.whywherethatWhat are t

11、he leading words of the predicative clause?How should we determine the leading word of a predicative clause?how,that,why,where.According to the structure of the clauses.引 导 词To Sum up1. (2020湖南长郡下学期试题)Having a positive attitude and making full use of the benefits that the new sort of competition bri

12、ngs to us are really counts.2. (2019豫北名校联考)The most pleasant thing of the rainy season is one can be entirely free from dust.3. (2020安徽师大附中试题)She is is known as a noisy person -she is always dying to know whats going on in others lives.4. (2019辽宁八校联考)This is my father has taught me -to always face d

13、ifficulties and hope for the best.PracticeFill in the blanks with leading words.thatwhat what what从句少宾语从句少主语从句完整，不少成分从句少主语Practice5. (2020河北邢台八中试题)The question is _the two countries can reach agreement at the conference. 6. (2020全国2.语法填空.改编)This is _decorating with plants,fruits and flowers carries

14、special significance. 7. (2018江苏,21)By boat is the only way to get here, which is _we arrived.8. (2018北京,11)Without his support, we wouldnt be _we are now. Fill in the blanks with leading words. whether whyhow where从句完整，不少成分从句少原因状语从句少方式状语从句少地点状语Predicative Clause表语从句表语从句.Grammar RulesGrammar RulesPr

15、acticethat 和what 的比较10. As you know,reading is _ I really love,both for fun and knowledge.11. That fact is more than seventy percent of the earths surface is covered by water.12. What I want to do is I can go up to him and thank him. 13. He has become _ he wanted to be ten years ago. whatthat连接词连接词t

16、hat一般不能省略，但当主句中含动词一般不能省略，但当主句中含动词do的某种形式时，的某种形式时，that可以省略。可以省略。(that)此处不能用 thatthat，因为从句中少宾语。，因为从句中少宾语。9. The truth is the fog is too thick for the bus to run that far.thatwhatPractice14.The question is we can finish our work by tomorrow evening.Aif Bwhether CwhenDthat15.That is I dont like going ab

17、road.Abecause BthatC whichDwhat16.The reason is he got up late. A. whyB. whatC. that D. becauseChoose the best answer which suits the blanket fromA、B、C and D.B. whetherA. becauseC. thatif 与与whether均意为均意为“是否是否”，但引导表语从句时，只能用，但引导表语从句时，只能用whether, 不能用不能用if。because引导表语从句引导表语从句,常用结构：常用结构：This/That/It is/w

18、as because.reason做主语或主语中包含事件的起因时做主语或主语中包含事件的起因时,后面的表语从句表后面的表语从句表示原因时要用示原因时要用that来引导来引导,而不用而不用becausePractice16.I was angry. That was he didnt understand me.17.Thats he got fired from that firm.Fill in the blanks with leading words. because why我生气是因为他不理解我。我生气是因为他不理解我。(表语从句强调原因表语从句强调原因)那正是他被公司解雇的原因。那正

19、是他被公司解雇的原因。(表语从句强调结果表语从句强调结果)PracticeFill in the blanks with leading words.18. (全国新课标I卷)Besides, table manners are you should pay attention to. 19. (北京卷)Thats I think the trip along the Yangtze will be a better choice. 20. (福建卷)Whats important is we should stick at it.21. Li Lei is now in a new jack

20、et. He looks he were an American boy. what why that as ifGrammar RulesDavid is talking to Maria about their scientific research project. First complete Davids lines (A-E, using the words in the box. Then put Davids lines in the correct order and practice the conversation.A: Absolutely ! You may not

21、believe it, but that was _happened at the initial stage 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.that Discussion David is talking to Ma

22、ria about their scientific research project. First complete Davids lines (A-E, using the words in the box. Then put Davids lines in the correct order and practice the conversation.whetherwhosewhich Discussion David is talking to Maria about their scientific research project. First complete Davids li

23、nes (A-E, using the words in the box. Then put Davids lines in the correct order and practice the conversation.Maria: This mix of theory and data is one of the key characteristics of what we call science.David:_A_Maria: With your theoretical framework?David:_Maria: Deciding on a theory is definitely

24、 of critical importance.David:_Maria This was when you should have calmed down and got down to doing some sold work.David:_Maria: So what happened in the end?David:_CED Discussion Discussion Work in groups. Answer the questions using predicative clauses according to the passage above. Then share the

25、m with your group members.What was Davids groups research? (Davids groups research was.) What was the problem? (The problem was . )What was the key issue? (The key issue was .)What did they care about? (What they cared about was .) Discussion Davids groups research was that they wanted to develop a

26、vaccine for malaria.The key issue was why they had to carry out the research in the first place.(Davids groups research was.) (The problem was . )The problem was that they had to decide which theory to depend upon.(The key issue was .) (What they cared about was .)What they cared about was how they could reduce the cost of a vaccine without reducing its effect.Homework Do the exercises 1 and 2 on page 62 of the workbook.