Unit6 Developing ideas P68-70课件-(2022）新外研版高中选择性必修第三册《英语》.ppt

1、Unit6 Nature in wordsP68P68Developing ideasActivity 1 Look at the infographic below and answer the questions.Facts about DDT:DDT was first produced in 1874 and was later used as pesticide.It stays in the environment.It is highly poisonous to living organism,including humans.Now banned in many countr

2、ies,it is still used in some for malaria(疟疾)control.Notes：1.pesticide 杀虫剂2.poisonous poison3.ban n.v.a ban on smoking ban sb.from doing4.contamination pollution contaminate pollute弄脏，污染，毒害5.consume 消费；吃，喝6.filter 渗透；过滤7.spray 喷雾，喷洒P68Developing ideasActivity 1 Look at the infographic below and answe

3、r 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 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 f

4、ish consumed by humans.2 What harm does DDT cause?DDT is highly poisonous to living organism,including humans.Activity 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.It is a book review on Silent Spring,so the following par

5、ts may be mentioned in this passage:Now read the passage and check your prediction.1)basic information about the book,including the author,year of publication,theme and main idea;2)the reason why this book is published;3)features of the writing;4)comments on this book;5)influence of this book.Carefu

6、lly readingPara1Notes：8.a book review 9.stillness n.宁静，沉静10.puzzled&puzzling puzzle11.backyard 后院12.desert n.沙漠 v.抛弃，丢弃（=abandon）*13.tremble v.颤抖 14.chorus 合唱曲15.dove 鸽子 *16.marsh 沼泽17.scores of+cn.（复数）许多，大量1.Why did many people get puzzled and disturbed?ABecause they didnt speak of birds again.BBec

7、ause the feeding stations were destroyed.CBecause most birds were gone.DBecause birds voices were unusual.Para1 Carefully readingPara2Notes：18.fable 寓言19.alert 提醒，使 sb.意识到 alert sb.to20.knowingly 故意地；明目张胆地21.monitor v.监管；监视 n.显示器，班长22.in particular 23.cause harm to2What can we learn about Rachel Car

8、son?AShe was born in 1962.BShe was a writer by profession.CShe thought pesticides were harmful.DShe used too many pesticides daily.Para2 Carefully readingPara34Notes：24.urge sb.to do 督促/力劝某人去做sth.25.in addition to26.dozens of 许多 dozen 一打（12）27.or so 大约，左右28.thorough 仔细的；详尽的；彻底的29.precise 精确的Carefull

9、y readingPara3430.alarming 惊人的，吓人的，担忧的31.impact 影响32.be regarded as a milestone33.launch n.推出，发起 v.发动，发射Silent Spring was therefore regarded as a milestone in the launch of the green movement in the Western world.(P69)因此，寂静的春天被认为是西方世界发起绿色运动的里程碑。launch a campaign 开始进行一场运动 3What caused a great increas

10、e in the awareness of protecting the environment?ACarsons research.BThe fireant program.CThe green movement.DSome gypsy moths.Para34 Carefully readingPara5Notes:34.a target for 目标，靶子，对象*35.marine 海洋的36.more.than.与其说 倒不如说(教材P69)Some also said that her work was more emotional than scientific.一些人还说，她的工

11、作更多的是情感上的，而不是科学上的。The book seems to be more a dictionary than one on grammar.Carefully readingPara537.rather than&other than&or rather 38.reputationhave a good/bad reputation 有好/坏名声earn/establish a reputation 赢得/树立声誉damage/ruin ones reputation 有损/毁坏某人的名声up to ones reputation 名副其实39.stand by 忠于；继续支持；

12、袖手旁观；40.defend her claims4Who supported Carsons research strongly?AMost writers.BMost scientists.CMost critics.DMost officials.Para5 41.crucial 至关重要的42.elegance 优美；简洁 elegant 优雅的43.deserve 值得；应得Eg.The book deserves to be reread today.The book deserves rereading today.44.passionate adj.热情的；狂热的 passio

13、n 热情，激情45.diamond 钻石Carefully readingPara6Para6 Carefully readingPersonally,I enjoy Carsons book.She made a crucial but potentially difficulttounderstand 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 be

14、cause 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 warning,one day we

15、 may wake up to the strange and quiet horror of another silent spring.Activity 3 Organise information from the passage and complete the notes about Silent Spring.1 1962 2 the damaging effects of human activity 3 more responsible,limited and carefully monitored 4 scientific information,examples and r

16、esearch 5 beautiful and elegant 6 The pesticide industry 7 defend her claims 8 The use of DDT 9 Presidential Medal of Freedom 10 environmental awarenessThink&Share1 Why was Silent Spring so successful?Silent Spring was so successful because it alerted the general public to the dangers of DDT.It plan

17、ted 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.2 What is the moral lesson behind “A Fable for Tomorrow”?The moral lesson is that financial profit should not come a

18、t the expense of the environment and the creatures living in it.Think&Share3 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.Think&Share4 In what differe

19、nt ways do First Snow and Silent 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 behaviour.Think&Share