高中英語 選必B3U6-第四課時(shí)-Developing Ideas 課件

1、2021年春季深圳市線上課程高二英語深圳市教育科學(xué)研究院教學(xué)材料：外研版高中英語新教材選修第三冊(cè)教學(xué)內(nèi)容：Unit 6 Nature in words第四課時(shí)：Developing ideas執(zhí)教人:嚴(yán)峰梅(May)/深圳市羅湖區(qū)羅湖外語學(xué)校高中部 Unit 6 Nature in words Developing ideasActivity 1 Look at the infographic below and answer the questions. P68Facts about DDT: DDT was first produced in 1874 and was later used

2、 as pesticide. It stays in the environment. It is highly poisonous to living organism, including humans. Now banned in many countries, it is still used in some for malaria(瘧疾) control.Notes：1. pesticide n. a chemical used to kill pests2. poisonous poison If sth. is poisonous, it will kill you or mak

3、e you ill if you eat it.3. ban v. to say that sth. must not be done4. contamination pollution contaminate pollute5. consume v. to eat or drink sth. 6. filter v. leakActivity 1 Look at the infographic below and answer the questions.1 How does DDT reach the human body in the food chain?When DDT is spr

4、ayed onto plants in order to kill insects, it is absorbed by the plants and later consumed by animals; humans in turn eat those animals. DDT also leaks through the soil and into rivers and lakes, where it contaminates fish consumed by humans.2 What harm does DDT cause?DDT is highly poisonous to livi

5、ng organism, including humans.A book review: an article in a newspaper or magazine giving opinion about a new book A book review author, theme, main ideayear of publicationthe reason for its publicationbasic information of the bookfeatures of the writingcomments on this bookinfluence of this bookAct

6、ivity 2 Read the book review on Silent Spring, a book that led to the banning of DDT. Predict what will be mentioned in the passage. P68It is a book review on Silent Spring, so the above parts we talked about may be mentioned in this passage.1.What caused silent spring according to the passage?A. Th

7、e birds didnt wake up so early.B. The people killed the birds randomly.C. The animals all died out because of human activity.D. The birds died because of the harmful use of pesticides.While-readingRead and choose the correct answers to the following questions.2.Which work was regarded as a milestone

8、 in the launch of the green movement in the Western world?A . The Edge of the Sea.B . Under the Sea Wind.C . Silent Spring.D . First Snow.While-readingRead and choose the correct answers to the following questions.3.Why was Silent Spring so successful?A . Because it caused a great increase in enviro

9、nmental awareness.B . Because the writer is very famous.C . Because it reflects the realism.D . Because the bird described is very nice.4.Whats the topic of Silent Spring?A . Love , hope , human.B . Nature , love , life.C . Environment, life , human.D . Environment, love , human.5.The reason why the

10、 author enjoys Carsons book is that .A. the quality of her arguments is strongB. her book has changed the worldC. her writing is beautiful and elegantD. she describes a beautiful silent springWhile-readingRead and choose the correct answers to the following questions.Learning sentences to better und

11、erstand the text! Para.3The 50 or so pages at the end of the book list Carsons sources, showing how thorough and precise she was as a scientist. Para.4Silent Spring was therefore regarded as a milestone in the launch of the green movement in the Western world. It also earned Carson a posthumous Pres

12、idential Medal of Freedom and put her face on the 17-cent US stamp.Carsons sources are listed on the final 50 or so pages of the book, which showed how thorough and precise she was as a scientist.Honesty is regarded as the traditional virtue of our Chinese nation.The book Silent Spring was as a resu

13、lt considered as a significant mark in the early days of the green movement in the Western world.Posthumous is used to describe something that happens after a persons death but relates to something they did before they died.死后的；身后的 5 Though Carsons research was strong and was supported by most scien

14、tists who reviewed her work, the book quickly became a target for critics in the pesticide industry. These were attempts to damage Carsons reputation and stop her work from influencing public policy, but she remained determined to stand by her research. Carson appeared in public and on television to

15、 defend her claims-and today, more than 50 years after it was published, the voices of Silent Spring is still ringing loud and clear.Para.5A person, idea or statement at risk of criticismHis war record became a target for his enemies.to continue to have a particular belief of opinion, even though ot

16、her people have doubts about it or disagree with youThe doctors are standing by their claim that they are not at fault.The message came through loud and clear.那消息傳達(dá)得清清楚楚。Para6 She made a crucial but potentially difficult-to-understand subject interesting and accessible to millions of people. This is

17、 not so much because of the quality of her arguments, strong though they are, but because of the beauty and elegance of her writing. Her book not only changed the world; half a century later it remains a book that deserves to be reread today, so that we can once again feel ourselves warm to the fire

18、 of its passionate message. For unless we do listen to Rachel Carsons warning, one day we may wake up to the strange and quiet horror of another silent spring.Although her arguments are solid, Carsons book is interesting and accessible because her writing is beautiful and elegant.deserve to be doned

19、eserve doingFill the blanks with the correct forms of the words in the box.elegant，alert，stand by，dozens of，ban.from，who， launch，design，imagine，aware ofRachel Carson wrote her book Silent Spring in 1962.She aimed 15._ people to the damaging effects of human activity on natural ecosystems by 16._ a w

20、orld without birds. Carson urged people to make themselves 17. the harm that was caused to plants，animals and even humans by the chemical industry. She offered 18. _ examples that did nothing to reduce the problems originally 19. to solve.to alertimaginingaware ofdozens ofdesignedHer message had suc

21、h an immediate and far-reaching effect that DDT 20._ being used and EPA was established. The book was regarded as a milestone 21._ the green movement in the Western world. However, her book quickly was targeted and criticized by some critics in the pesticide industry 22._ attempted to damage Carsons

22、 reputation. But Carson was determined 23. _ her research and defend her claims.Personally，people love the book not because of her strong arguments but because of the beauty and 24. of her writing. And even today her book still deserves to be reread.elegant，alert，stand by，dozens of，ban.from，who， lau

23、nch，design，imagine，aware ofwas banned fromto launchwhoto stand byelegance 1 There was a strange stillness. The birds, for example-where had they gone? Many people spoke of them, puzzled and disturbed. The feeding stations in the backyards were deserted. The few birds seen anywhere were moribund; the

24、y trembled violently and could not fly. It was a spring without voices. On the morning that had once throbbed with the dawn chorus of robins, catbirds, doves, jays, wrens, and scores of other bird voices there was now no sound; only silence lay over the fields and woods and marsh.Silent SpringHow do

25、es the author organize the book review?basic information of Silent Springthe authoryear of publicationpurpose3 Carson urged people to make themselves aware of the facts and do something about the situation. Silent Spring contains a lot of scientific research and case studies. The book gives also doz

26、ens of other examples of eradication programmes that did nothing to reduce the problems they were originally designed to solve. The book details the gypsy moth eradication programme, which killed birds, in addition to gypsy moths. Another case study was the fire-ant programme that killed cows , but

27、not fire ants. Content of Silent Spring 4 Carsons message was very alarming, causing a great increase in environmental awareness. Its impact was immediate and far-reaching : the use of DDT was banned and the Environmental Protection Agency was established in the US. Influence of Silent Spring Silent

28、 Spring was therefore regarded as a milestone in the launch of the green movement in the Western world. It also earned Carson a posthumous Presidential Medal of Freedom and put her face on the 17-cent US stamp. 5 Though Carsons research was strong and was supported by most scientists who reviewed he

29、r work, the book quickly became a target for critics in the pesticide industry. They said that Carson did not understand the science behind her arguments because she was a marine biologist rather than a chemist. Some also said that her work was more emotional than scientific. Comments on Silent Spri

30、ngopposing voices These were attempts to damage Carsons reputation and stop her work from influencing public policy, but she remained determined to stand by her research. Carson appeared in public and on television to defend her claims-and today, more than 50 years after it was published, the voices

31、 of Silent Spring is still ringing loud and clear.determination 6 Personally, I enjoy Carsons book. She made a crucial but potentially difficult to understand subject interesting and accessible to millions of people. This is not so much because of the quality of her arguments, strong though they are

32、, but because of the beauty and elegance of her writing. Her book not only changed the world; half a century later it remains a book that deserves to be reread today, so that we can once again feel ourselves warm to the fire of its passionate message. For unless we do listen to Rachel Carsons warnin

33、g, one day we may wake up to the strange and quiet horror of another silent spring.Comments on Silent SpringActivity 3 Organize information from the passage and complete the notes about Silent Spring.the damaging effects of human activitymore responsible, limited and carefully monitoredscientific in

34、formation, examples and researchbeautiful and elegantThe pesticide industrydefend her claimsThe use of DDTPresidential Medal of Freedomenvironmental awareness1962Write your own book review!A book review on Silent Springcontent of the bookbasic information of the bookcomments on this bookinfluence of

35、 this book1 Why was Silent Spring so successful?2 What is the moral lesson behind “A Fable for Tomorrow”? 3 Why did some people challenge Carsons findings? 4 In what different ways do First Snow and Silent Spring raise peoples awareness of nature?Post-readingThink & Share P701 Why was Silent Spring

36、so successful? Silent Spring was so successful because it alerted the general public to the dangers of DDT. It planted important new ideas in the public mind, such as that spraying chemicals to control insect populations has an impact on other wildlife, and that the chemicals got into the food chain.After-readingThink & Share P702 What is the moral lesson behind “A Fable for Tomorrow”? The moral