Unit-5-Silent-Spring-寂静的春天推荐课件

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1、Unit 5 Silent SpringRachel CarsonLead-in QuestionWhat is the image of spring season in your mind?What is meant by“silent spring”?Can you guess what topic is this text about?R einforcementT ext AnalysisB ackgroundW arming upSilent SpringUnit 5Questions/ActivitiesListening:Earth SongObjectivesWarming

2、upSilent SpringUnit 5Pair work:Work in pairs to name five environmental problems thatare threatening our world.Please work out the ways to protect our environment Questions/ActivitiesAir PollutionWater Pollutionsoil pollutionsalinizationerosiondeforestationdesertificationAcid rainHeavy use of energy

3、 to enhance the human material,but also caused unexpected disaster.Acid rain brings a global damage.Yangtze River in the pastNow A:GOVERNMENT B:OURSELVESpolicy of of prevention in the first place curb environmental pollutionprotest forests from overexploitation 防止过度利用森林防止过度利用森林refuse landfill 垃圾填埋场：

4、垃圾填埋场：refuse incinerator垃圾焚化场垃圾焚化场conservation of water and soilwater resource conservation zoneafforestation project造林工程造林工程rare and endangered species breeding centerNational Tree-Planting Dayslow down the rate of resource degradation降低资源消耗率降低资源消耗率develop renewable resourcesenvironment productsnat

5、ure reserveGovernment1 Plant more trees.2 Go to school by bike 3 Reuse our textbooks.4 Turn off the taps in time.5 Save water as well as electricity.6 Use both sides of every piece of paper 7 Turn off the lights when you leave the house.8 Open a window instead of turning on air conditioner.9 Take yo

6、ur own cloth bags when shopping instead of using plastic bags.RememberThere is only one place we can live,so we must protect our environment.Use our hand,use our heart,I think tomorrow is beautiful.Just like the poem saidBeautiful springtime when all is delightBeautiful summer,so warm and so brightB

7、eautiful autumn,with fruit and with grainBeautiful winter,with snowflakes again What about sunriseWhat about rainWhat about all the .That you said we were to gain.What about killing .Is there a timeWhat about all the thingsThat you said was yours and mine.Did you ever stop to noticeAll the weve shed

8、 beforeDid you ever stop to noticeThe Earth the weeping shores?Aaaaaaaaaah Aaaaaaaaaah What have we done to the worldLook what weve doneWhat about all the .That you pledge your only son.What about fieldsIs there a timeWhat about all the .That you said was yours and mine.Did you ever stop to noticeAl

9、l the children dead from .Did you ever stop to noticeThe crying Earth the weeping shoresI used to dreamI used to glance beyond the starsListening:Earth Song What about sunrise 日出呢 What about rain 雨呢 What about all the things 还有你说过 That you said we were to gain.我们会得到的一切呢.What about killing fields 土地在

10、减少呢 Is there a time 有没有结束的时候 what about the things 还有你说过 That you said was yours and mine.属于你和我的一切呢.Did you ever stop to notice 你是不是忘了 All the blood weve shed before 我们曾挥洒下的血汗 Did you ever stop to notice 你有没有看到 The crying Earth the weeping shores?地球在流泪海岸在哭泣 Aaaaaaaah Aaaaaaaaah 啊-Earth Song 地球之歌 演唱：

11、Michael Jackson What have we done to the world 我们对世界做错了什么 Look what weve done 看看我们做错了什么吧 What about all the peace 还有你向独子许诺过的 That you pledge your only son.一切和平呢 What about flowering fields 鲜花遍布的田野呢 Is there a time 有没有结束的时候 What about all the dreams 还有你说过 That you said was yours and mine.属于你和我的所有梦想呢

12、Did you ever stop to notice 你是不是忘了 All the children dead from war 战争中死去的那些孩子 Did you ever stop to notice 你有没有看到 The crying Earth the weeping shores?地球在流泪海岸在哭泣 Aaaaaaaah Aaaaaaaaah 啊-I used to dream 我曾经梦想 I used to glance beyond the stars 我曾经遥望群星之上 Now I dont know where we are 如今不知我们身在何方Although I kn

13、ow weve drifted for 尽管我明白我们漂泊了太远 Aaaaaaaah Aaaaaaaaah 啊-Hey,what about yesterday(what about us)嘿,昨天呢(我们呢)What about the seas(what about us)海洋呢 The heavens are falling down(what about us)天堂跌落 I cant even breathe(what about us)我不能呼吸 What about the bleeding Earth(what about us)流血的地球呢 Cant we feel its w

14、ounds(what about us)我们难道不能感受到它的伤痕 What about natureworth(ooo,ooo)宝贵的自然呢 Its our planets womb(what about us)那是我们地球的孕育地 What about animals(what about us)动物呢 Weve turned kingdoms to dust(what about us)我们把他们的王国化为灰烬 What about elephants(what about us)大象呢 Have we lost their trust(what about us)我们是不是已失去它们的

15、信任 What about crying whales(what about us)鲸鱼呢 Were ravaging the seas(what about us)我们污染了海洋 What about forest trails(ooo,ooo)森林小径呢 Burnt despite our please(what about us)给我们违心的烧毁了 What about the holy land(what about us)神圣的土地呢 Torn apart by creed(what about us)被四分五裂了 What about the common man(what abo

16、ut us)普通人呢 Cant we set him free(what about us)我们可以给予他自由吗 What about children dying(what about us)奄奄一息的孩子呢 Cant you hear them cry(what about us)你有没有听到他们的哭声 Where did we go wrong(ooo,ooo)我们走错了何方 Someone tell me why(what about us)有没有人告诉我原因 What about babies(what about us)婴儿呢 What about the days(what ab

17、out us)岁月呢 What about all their joy(what about us)他们所有的欢乐呢 What about the man(what about us)人类呢 What about the crying man(what about us)哭喊的人们呢 What about Abraham(what about us)亚伯拉罕呢 What about death again(ooo,ooo)再问一次,死亡呢 Do we give a damn 我们有没有注意 Aaaaaaaah Aaaaaaaaah 啊-1.Content&Message:Develop an

18、environmental consciousness.2.Language:Practice reading skills.understanding extended essays(a combination of description,exposition and argumentation)understanding complicated paragraphs reading for gist inferring the authors attitudes/feelings/opinions/conclusions (her love for the beauty and inte

19、grity of nature;her view of mans relation to nature)drawing inferences Objectives2.Language:Appreciate descriptive writing(use of sensory words to paint pictures).Appreciate devices to make writing precise and powerful.ObjectivesBackgroundAuthor Silent SpringUnit 5Background Information Rachel Carso

20、n(1907-1964)biologist,writer,ecologistintense love for nature since her childhood“Humans have now acquired a fateful power to alter and to destroy nature.But Man is a part of nature,and his war against nature is inevitably a war against himself.”Rachel Carson Author BackgroundHer Life282021/8/22She

21、was once bitterly attacked:“an anti-humanitarian crank,a priestess of nature,and a hysterical woman”But she courageously went on fighting until her idea caught on and more and more people joined in.the mother of modern environmental movement AuthorBackgroundHer Life292021/8/22Silent Spring1.We are f

22、aced with all kinds of environmental problems nowadays.But what is the one that Rachel Carson dealt with in her book Silent Spring?2.How do chemicals affect the environment and people?3.Does Carson mean that insecticides should never be used in agriculture?302021/8/22Rachel Carson and her work312021

23、/8/221.When was it published?2.Who was the author?3.What is it about?What is its central argument?4.How was it received?5.How significant is it now?6.Does it still make sense now?BackgroundRachel Carson(1907-1964)She grew up on a small Pennsylvania farm,went to the Pennsylvania College,majored in zo

24、ology,and then went to John Hopkins for a masters degree in genetics.Publications:Under the Sea-Wind The Sea Around Us The Edge of the Sea Silent Spring In the wake of Silent Spring,she was attacked personally and as a scientist by many.While she was working on Silent Spring,she learned she had brea

25、st cancer.She died two years after Silent Spring was published,at age 56.Report on Silent Spring(1962)The$300,000,000 pesticides industry has been highly irritated by a quiet woman author whose previous works on science have been praised for the beauty and precision of the writing.In her latest work

26、,however,Miss Carson is not so gentle.More pointed than poetic,she argues that the widespread use of pesticides is dangerously tilting the so-called balance of nature.Pesticides poison not only pests,she says,but also humans,wildlife,the soil,food and water.NY TimesSignificance of the Book It roused

27、 a new public awareness that nature was vulnerable to human intervention.She proposed that,at times,technological progress is so fundamentally at odds with natural processes that it must be curtailed.Conservation had never raised much broad public interest,for few people really worried about the dis

28、appearance of wilderness.But the threats she had outlinedthe contamination of the food chain,cancer,genetic damage,the deaths of entire specieswere too frightening to ignore.For the first time,the need to regulate industry in order to protect the environment became widely accepted,and environmentali

29、sm was born.Background Information Environmental Protection Organizations 1.The United Nations Environment Programme(UNEP)2.Green Peace 3.The Environmental Protection Agency Earth Day Earth Day is a day designed to inspire awareness and appreciation for the Earths environment.It is on 22 April.It wa

30、s founded by U.S.Senator Gaylord Nelson(D-Wisconsin)as an environmental teach-in in 1970 and is celebrated in many countries every year.The first Earth Day was in 1970.Earth Day is similar to World Environment Day.DetailedAnalysisStructureText AnalysisSilent SpringUnit 5 Theme Structure I.Para.1-9 A

31、 fable tomorrow:The author describes the changes of an imagined American town by c_ the situations before and after its polluted.II.Para 10-19 It is the c_ that has changed the h_ between living things and their surroundings.III.Para 20-24 This part presents two factors that cause the insect problem

32、s:the i_ of agriculture and the i_ of palnts.IV.It is concluded by the author that the chemicals should be used p_.Part I:paras.1-6a town before&after the disasterPart II:paras.7-9cause of the disaster:chemicalsPart III:paras.10-14character&impact of mans tampering with naturePart IV:paras.15-18reas

33、ons why pesticides fail to solve the pest problemText Analysis StructurePart V:paras.19-24cause of modern pest problem and possible solutions Part VI:para.25conclusionContrast:a town before&after the disasterBefore Color Sound Motion Overall impression:vibrant,harmonious,beautifulAfter Color Sound M

34、otion Overall impression:lifeless,deserted,awfulText AnalysisDetailed AnalysisPart I:Main Idea (Para 1-6)Detailed Discussion of the Text 1.There was once a town in the heart of America where all life seemed to live in harmony with its surroundings.(para.1)heart:the central or most important part Not

35、e the various meanings of the word“life”in the text.In this sentence it means“living things”.in harmony with:in a state of peaceful co-existence and agreement Harmony/harmonious inharmony/disharmony Eg:我们班上的同学一起和谐相处了两年。Paraphrase:Once upon a time there was a town in the central part of America where

36、 all living things seemed to co-exist peacefully with their environment.2.The town lay in the midst of prosperous farms,where,in spring,white clouds of bloom drifted above the green fields.(para.1)in the midst of:(informal)among 既可表示方位，又可表示时间。在当中；正当某事发生的时候 The old man was knocked down by a motorbike

37、 in the midst of passing through the street.Prosperous:booming;promising:(of plants)growing well prosper(v);prosperity(n)white clouds of bloom:metaphor The town lay among booming(or well growing)farms.In spring,white clouds floated above the green fields just like flowers.3.In autumn,oak and maple a

38、nd birch set up a blaze of color that flamed and flickered across a background of pines.(para.1)set up:to cause,produce,raise:a wall a blaze of color:an impressive and noticeable show of colors Paraphrase:In autumn,the oak,maple and birch trees turned yellow,red or brown,thus making a beautiful show

39、 of colors against the dark green of pine trees.Pay attention to Carsons use of color in describing the town before its environment was contaminated:white clouds floating above green fields in spring,the blaze of color in autumn,etc.Lesson 11 Silent Springshadows/lights/leaves/candles flickerEg:The

40、lights of suspended bridge flickered on and off.A smile flickered across his face.Flame and flicker:alliterationflame:to become suddenly bright with light or color,esp,red or orange 成火红色成火红色The autumn woods flamed with color.Flicker:to keep going on and off as it shines or burns 忽忽隐忽现；隐忽现；（of an emo

41、tion,a thought etc)to appear for a short time 情绪，思想等闪现，一闪而过情绪，思想等闪现，一闪而过 4.Then foxes barked in the hills and deer silently crossed the fields.(para.1)(Now animals are introduced after plant life)from the noisy foxes to the quiet deer,they cried and moved as they liked.delighted the travelers eye.(p

42、ara2)gave the traveler great satisfaction/enjoyment(what a harmonious and fascinating view)Sth delights sb/sb is delighted by sth I was delighted by the steep mountain and elegant water of Zhangjiajie.零陵以其清新的空气和美丽的山水吸引着游客。Feed on 以为主食；强调喂养 Pandas mainly live on bamboo,while rabbits feed on grass.Liv

43、e on 靠维持生活,以为主食。主语可为人和动物 The fish lives on the plankton(浮游生物）.The old man lives on picking up trash.The wretched woman lives on begging.abundance n.a great or plentiful amount,fullness,affluence Examples:our country has an abundance of natural resources.Private cars are available in abundance.abunda

44、nt a.v This area is abundant in petroleum deposit.abound v.Abound with=be filled with Streams abound with fish.Migrant:候鸟；移居者；（为工作）而迁移的人 Migrants often fly to the south in winter.Migrant labor Migrant workers Migrant&immigrant&emigrant 5.Then some evil spell settled on the community:mysterious disea

45、ses swept the flocks of chickens;the cattle and sheep sickened and died.(para.3)Spell:words that make magical things happen Note the use of unit words in English:a flock of chicken/sheep/tourists;a herd of cattle/elephantssickened:became ill Then,as if by some evil power,disaster fell on the communi

46、ty:Strange diseases quickly struck down large numbers of chicken;the cattle and sheep became ill and died.6.The feeding stations in the backyards were deserted.(para.4)feeding station:a dish-like container fixed on top of a post where people regularly leave sunflower seeds or the like for passing bi

47、rds to feed on.Feeding stations are generally put up in the backyards.(牲畜饲喂站）Deserted:forsaken;visited by nobody(here birds)abandoned A street/island No birds came to feed on what was there at the feeding stations.7.On the mornings that had once throbbed with the dawn chorus of scores of bird voices

48、 there was now no sound;(para.4)scores of bird:many birds The morning air used to vibrate with the singing of birds,but there was now no sound.The chorus of many birds caused the morning air to shake rhythmically,giving the place life.Analyze the structure of the above sentence.Throb Vi(of a part of

49、 the body)to feel a series of regular painful movements 身体部位有规律地抽动，抽痛；to beat or sound with a strong,regular rhythm;of a place to have a lot of life,energy 昨晚我的腿很疼地抽筋。他兴奋得心直跳。广场上这么多人在跳舞，真有活力。Why did the author paint such a beautiful picture of a non-existent town?What was she trying to appeal to?Tex

50、t AnalysisDetailed AnalysisPart II:Discussion(Para 7-9)Stricken world Strike,struck,stricken：患病的，受挫的，受侵袭的 Flood-stricken district Earthquake-stricken district a family stricken by genetically inherited cancer a leukemia-stricken child Substantial:large in amount,value or importance Substance;substan

51、tial A substantial sum of money A substantial change Nature Direction:environment life Speed:Character:adaptative Human Direction:life environment Speed:Character:destructive irrecoverable How has man changed the relation between organisms and their surroundings in recent years?Text AnalysisDetailed

52、 AnalysisPart III:Discussion(Para 10-14)2.In what way has mans power changed in character？(para.11)3.How do chemicals affect our life?(para.11)“passing from one to another in a chain of poisoning and death”4.What are the two examples given by the author as mans tampering with nature?(paras.11-13)5.W

53、hy is mans change of the world particularly devastating?(paras.12-14)Text AnalysisDetailed Analysis To a large extent To some extent To a certain extent Mold:vt to strongly influence the way sbs character,attitude,etc.develop A good teacher should also help mold the positive life values of students.

54、父母的关系对孩子性格的形成具有决定性的作用 Vi 发霉 8.Considering the whole span of earthly time,the opposite effect,in which life actually modifies its surroundings,has been relatively slight.(para.10)Please analyze the structure of the sentence Span:跨度，范围 life span Modify:to change sth slightly 稍微改变，调整；缓和 When we think o

55、f the long history of life on earth,the degree(or extent)that living things affect their environment has been insignificant as compared with the effect of the environment on plant and animal life.9.but it has changed in character.(para.11)but the nature of this power to alter the environment has cha

56、nged.In the past,to survive humans made use of what nature offered,for example,by cutting down trees,damming rivers;now they create things that did not exist,such as chemicals and unnatural radiation.Lesson 11 Silent Springassault vi,vt/n.violent physical or verbal attack(usually implying sudden,int

57、ense violence)An assault on/upon sthLaunch an assault violent assaultsMuggers often assault their victims on dark streets.In 1941,Japan launched a sneak attack on Pearl Harbour.10.This pollution is for the most part irrecoverable.(para.11)Recover-irrecoverable Irrecoverable:irreparable(not reparable

58、);incurable;irremediable In most cases,the polluted air,soil,and rivers and the sea cannot be restored to their original natural state.11.Chemicals sprayed on croplands or forests or gardens lie long in soil,entering into living organisms,passing from one to another in a chain of poisoning and death

59、.(para.11)Analyze the structure of the sentence lie long in soil:they stay in soil for a long time because they dont break down chemically there the chemicals that insecticides contain are likely to enter birds and animals in food,and then pass out in waste matter from their bodies,get into the soil

60、 and are absorbed by the plants that grow on it.When birds and animals and people eat the plants,these substances again are taken into their bodies.This process goes on and on endlessly,poisoning plant and animal life alike.In short,the chemicals tend to be endlessly recycled in the food chains.12.G

61、iven timetime not in years but in millennia life adjusts,and a balance has been reached.(para.12)Millennium:millennia;millennia of years:thousands of years Given time:if it is given time Past participle used as adverbial of conditions Eg:Given opportunity,he will find his place in the circle of IT.C

62、ooked in Dongan style,the chicken tasted more delicious.Cf:adjust/adapt：adjust 调整的幅度小些，侧重过程，可用于调整角度、高度；adapt 修改或改变以适应新条件，强调某人某物的可塑性、灵活性、适应性等 13.But in the modern world there is no time.(para.12)But in the modern world,life has no time to adjust itself to the change of environment,for mans power to t

63、amper with nature has become too great.(Man is so eager to change nature for short-term benefits,he does not think of the long-term interest of his own species.)14.The rapidity of change follows the impetuous pace of man rather than the deliberate pace of nature.(para.13)impetuous a.impulsive and pa

64、ssionate(forceful impulsiveness or impatience);=reckless;rash Examples:Impetuous waves；an impetuous promise/decisionDeliberate:v deliberate on/upon adj 故意的；深思熟虑的故意的；深思熟虑的 intentional;arising from or marked by careful consideration It looked like a deliberate and planned attack.Cf:deliberate/reflect/

65、meditate/ponder Rapid,drastic pace of man VS slow,careful pace of nature Paraphrase:Man is changing nature rapidly while nature adjusts to the changes slowly.Therefore adjustment can never keep up with change,and a new balance between living things and their environment can hardly be reached.15.Radi

66、ation is now the unnatural creation of mans tampering with the atom.(para.13)In the past,radiation was only sent out from radioactive substances in certain rock;today man creates such harmful rays by splitting the nucleus of the atom of such substance as radium.Lesson 11 Silent Spring tamper vi.瞎弄；篡改；捣乱；干预瞎弄；篡改；捣乱；干预 a.to interfere in a harmful manner b.to tinker or handle with rashly or foolishlyExamples:He tried to tamper with the decedents will.Dont tamper with my feelings.Human beings should