Unit 6 Nature in words Developing Ideas ppt课件-（2019）新外研版高中英语选择性必修第三册.pptx

1、教学材料：外研版高中英语新教材选修第三册教学内容：Unit 6 Nature in words第四课时：Developing ideas执教人: 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 as pesticide. It stays in the environment. It is hi

2、ghly poisonous to living organism, including humans. Now banned in many countries, it is still used in some for malaria(疟疾) control.Notes：1. pesticide n. a chemical used to kill pests2. poisonous poison If sth. is poisonous, it will kill you or make you ill if you eat it.3. ban v. to say that sth. m

3、ust 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 sprayed onto plants in order to kill insects, it is abs

4、orbed 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 living organism, including humans.A book review: an arti

5、cle 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 bookActivity 2 Read the book review on Silent Spring, a boo

6、k 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. The birds didnt wake up so early.B. The people killed

7、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 in the launch of the green movement in the Western

8、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 environmental awareness.B . Because the writer is very fam

9、ous.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 author enjoys Carsons book is that .A. the quality

10、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 understand the text! Para.3The 50 or so pages at the en

11、d 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 Presidential Medal of Freedom and put her face on the 17

12、-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 result considered as a significant mark in the early day

13、s 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 scientists who reviewed her work, the book quickly became

14、 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 defend her claims-and today, more than 50 years aft

15、er 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 other people have doubts about it or disagree with you

16、The doctors are standing by their claim that they are not at fault.The message came through loud and clear.那消息传达得清清楚楚。那消息传达得清清楚楚。Para6 She made a crucial but potentially difficult-to-understand subject interesting and accessible to millions of people. This is not so much because of the quality of he

17、r 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 of its passionate message. For unless we

18、 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 donedeserve doingFill the blanks with the corr

19、ect 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 world without birds. Carson urged people t

20、o 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 such an immediate and far-reaching effect th

21、at 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 reputation. But Carson was determined 23

22、. _ 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， launch，design，imagine，aware ofwas banned fro

23、mto 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; they trembled violently and could not fly. I

24、t 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 does the author organize the book review?ba

25、sic information of Silent Springthe authoryear of publicationpurpose Silent Spring contains a lot of scientific research and case studies. The book gives also dozens of other examples of eradication programmes that did nothing to reduce the problems they were originally designed to solve. The book d

26、etails 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 not fire ants. Content of Silent Spring 4 Carsons message was very alarming, causing a great increase in environmental awareness. Its impa

27、ct 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 Spring was therefore regarded as a milestone in the launch of the green movement in the Western world. It also earned Carson a posthumous

28、 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 her work, the book quickly became a target for critics in the pesticide industry. They said that Carson did not understand the science behin

29、d 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 Springopposing voices These were attempts to damage Carsons reputation and stop her work from influencing public policy, but she remained dete

30、rmined 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 of Silent Spring is still ringing loud and clear.determination 6 Personally, I enjoy Carsons book. She made a crucial but potentially dif

31、ficult 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, 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

32、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 warning, one day we may wake up to the strange and quiet horror of another silent spring.Comments on Silent SpringActivity 3 Organize informatio

33、n from the passage and complete the notes about Silent Spring.the damaging effects of human activitymore responsible, limited and carefully monitoredscientific information, examples and researchbeautiful and elegantThe pesticide industrydefend her claimsThe use of DDTPresidential Medal of Freedomenv

34、ironmental awareness1962Write your own book review!A book review on Silent Springcontent of the bookbasic information of the bookcomments on this bookinfluence of 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

35、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 so successful? Silent Spring was so successful because it alerted the general public to the dangers of DDT. It planted important new ideas

36、 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 lesson is that financial profit should

37、not come at the expense of the environment and the creatures living in it. After-readingthink & Share P702 What is the moral lesson behind “A Fable for Tomorrow”? The moral lesson is that financial profit should not come at the expense of the environment and the creatures living in it. After-reading

38、think & Share P70NoImage3 Why did some people challenge Carsons findings? Some people challenged Carsons findings because they were concerned about the negative impact they would have on business in the pesticide industry.After-readingThink & Share P704 In what different ways do First Snow and Silen

39、t Spring raise peoples awareness of nature? First Snow shows the beauty of natureand in particular the snowthrough its words and imagery, while Silent Spring describes an unnatural spring without the beauty of birdsong. They each raise peoples awareness of nature by highlighting the interplay between nature and human behavior. After-readingThink & Share P701Review the words and expressions we have learnt and try to make sentences with them. 2 Make a survey in your neighborhood. And try to find possible solutions to the problems concerning environmental protection.Homework