（2019新教材）外研版高中英语必修三Unit 6 Nature in words Developing ideas Silent spring ppt课件.pptx

1、Developing ideas Silent Spring Look at the infographic below and answer the questions. Facts about the pesticide: 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 countries, it

2、 is still used in some for malaria control. 1874年，德国Zeidler合成了DDT。 19361939年，瑞士化学家保罗赫尔曼穆勒 （Paul Hermann Mller，18991965）发现 了DDT的杀虫效能和使用价值，1943年传播国 外，1944正式发表。 DDT是第一个重要的有机氯杀虫剂，在 第二次世界大战后一段时间内，大量应用于农 业和卫生保健，起过很大的作用，瑞士化学家 保罗赫尔曼穆勒Mller因此获得1948年的诺 贝尔医学奖。 Pesticides were yesterdays gospel, but todays disa

3、ster. 农药是昨天的福音，今天的灾难农药是昨天的福音，今天的灾难 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 subsequently consumed by animals; humans in turn eat those animals. DDT also leaks through the soil and into rivers and

4、 lakes, where it contaminates fish consumed by humans. 2 What harm does DDT cause? DDT is highly poisonous to living organism, including humans. For dozens of years, human beings have paid a heavy price for it :a large number of birds have died out ; Germ cells have been damaged ; Various chronic di

5、seases have appeared 几十年来，人类为此付出了沉重的代价： 大量鸟类灭绝，生殖细胞受损，出现各种慢性 疾病 Now read the passage and check your prediction. It is a book review on Silent Spring, so the following parts may be mentioned in this passage: 1) basic information about the book, including the author, year of publication, theme and mai

6、n idea; 2) the reason why this book is published; 3) features of the writing; 4) comments on this book; 5) influence of this book. 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 d

7、eserted. The few birds seen anywhere were moribund; they 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

8、over the fields and woods and marsh. Silent Spring robin 知更鸟 catbird 猫鹊 dove 鸽子 jay松鸭 wren鹪鹩 purpose By imaging a world without birds, she aimed to alert the scientific community and the general public to the damaging effects of human activity on natural ecosystems-in particular, to the harmful use

9、of pesticides, such as DDT. Rachel Carson believed that the chemical industry was knowingly causing harm to plants, animals and even humans, and wished to see pesticides used in a more responsible, limited and carefully monitored way. Content of the book Silent Spring contains a lot of scientific re

10、search 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 details the gypsy moth eradication programme, which killed birds, in addition to gypsy moths. Another case study wa

11、s the fire- ant programme that killed cows , but not fire ants. Carsons message was very alarming, causing a great increase in environmental awareness. Influences of the book Its impact was immediate and far- reaching : the use of DDT was banned and the Environmental Protection Agency was establishe

12、d in the US. 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 Presidential Medal of Freedom and put her face on the 17- cent US stamp. Opposing voices Though Carsons research was strong and was supported

13、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 behind her arguments because she was a marine biologist rather than a chemist. Some also said that her work was more emotional than s

14、cientific. 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 of Sil

15、ent Spring is still ringing loud and clear. Comment on the 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, but because of the beauty and eleg

16、ance 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 may wake up to the str

17、ange and quiet horror of another silent spring. 1 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 in the public mind, such as that spraying chemicals to control insect populations has an

18、impact on other wildlife, and that the chemicals got into the food chain. Think they 5.(tremble) violently and could not fly . It was 6. spring without voices . On the mornings that had once 7. (throb)with the dawn chorus of robins , catbirds , doves , jays, wrens ,and scores of other bird 8.(voice)

19、 there was now no sound ; only9. (silent) lay over the fields and 10._(wood)woods and marsh. stillness puzzled backyards moribund trembled a throbbed voices silence woods 直击高考直击高考 Writing a poem about nature Learning to learn Rhyme is a typical feature of English poetry. A rhyme is a repetition of s

20、imilar sounds (or the same sound) in two or more words. Childrens poems, called “nursery rhymes”, usually contain strong rhymes so they are easy to be remembered. In modern poetry, however, features other than rhyme are more important. Lines of modern poetry can be of variable length, the shape of t

21、he words on the page is more important, and rhyme is not often used. Which poem abc uses its shape to help convey message? has rhyming words at the end of lines? uses metaphor? uses simile? uses personification? Read the poems and tick the correct box(es) for each question. Think about words and exp

22、ressions related to nature and add them to the mind map. Work in pairs. Plan a poem. Consider the following: what your poem will be about what kind of poem you are going to write what figures of speech you will use what words you can use for that rhyme (if using rhyme) There once was a boy who thoug

23、ht, He could eat all the sweets he had bought. He gobbled them down, Then started to frown, Because hed eaten more than he ought. Now write your poem. 高分写作 下面是唐朝诗人李绅的名作 (Sympathy on the Farmers),请写一篇80词左右的 短文解释一下诗的意思及诗中所蕴含的作者的思想感情。 悯农 锄禾日当午,汗滴禾下土。 谁知盘中餐,粒粒皆辛苦。 直击高考直击高考 一、审题定调 1 1.确定体裁:本文为诗歌改写。 2 2.确

24、定人称:本文的主要人称应为第三人称和第一人称。 3 3.确定时态:由于本文是诗歌,记述的是作者看到和想到的事情,所以 时态以一般现在时为主。 二、谋篇布局 第一部分,诗歌的作者:李绅;时代:唐朝;地位:深受欢迎。 第二部分,介绍诗歌所表达的内容。 第三部分,诗歌的写作意图及现实意义。 三、组织语言 1.核心词汇 (1)be popular with受到欢迎 (2)frequently频繁地 (3)delicious美味的 (4)remind.of.提醒某人某事 (5)waste food浪费食物 (6)treasure珍惜 参考范文: The poem entitled “Sympathy o

25、n the Farmers” is written by Li Shen in the Tang Dynasty , which enjoys great popularity among Chinese readers . It goes like this : Hot as it is outside at this summer noon time , the farmers are still working in the fields . They are wet all over with their sweat frequently falling into the soil ,

26、 where the crops grow . But who on earth knows exactly all the delicious dishes on our table come from the hard work of the farmers? Li Shen wrote this poem in order to remind people of the importance of the farmers hard work .Nowadays, many young people waste a lot of food . I think its of great importance that the young generation today should understand the poem and treasure every grain. Spring needs sound!