大学英语教程3(南方版)读写译-UNIT-1Environmental-Protection课件.ppt

1、UNIT ONEEnvironmental ProtectionPart I LANGUAGE SKILLPART II LANGUAGE IN CONTEXTPART III TOWARD PRODUCTIVE LANGUAGE若出现禁用“宏”和“ActiveX”对话框，请选择“启用”UNIT ONEKEY WORDS MADE EASYKEY EXPRESSIONS IN USEPart I LANGUAGE SKILLBACKKEY WORDS MADE EASY Read aloud the following sentences and figure out what each it

2、alicized word means.The Clue in the parentheses will help.1.I have moved to the countryside recently,and I feel quite at home in the new surroundings.(environment)2.At the back of my cottage,many kinds of wildflowers were in full bloom,a variety of which I couldnt name.(group;number)3.John enjoyed a

3、 peaceful life in the countryside in his retirement,and he didnt want it to be disturbed.(disrupt;stir)4.In the countryside,stores of grain are attacked frequently by pests,especially rats.(harmful insect or animal)5.Human love is often compared to a rose,for like the flower,it blossoms and it withe

4、rs.(fade)BACKUNIT ONEPART II LANGUAGE IN CONTEXTREADING SELECTION:TEXT ASTUDY AND PRACTICEQUESTIONS FOR DISCUSSIONBACKUNIT ONEWork in pairs or groups and discuss the following questions.1.While chemicals are quite universally applied in our daily life,are there adequate safe-guards and controls in t

5、heir use?2.Have there been any problems with the use of chemicals in the environment of your own area?Describe them.How do local citizens feel about these problems?3.Despite all the harms they might bring about,could we live a life without chemicals?4.What do you think are some possible ways to live

6、 in harmony with our natural surroundings?BACKREADING SELECTION:TEXT APreview QuestionsUNIT ONEWhile chemicals are quite universally applied in our daily life,are there adequate safeguards and controls in their use?Tips:The first part of the question:DDT and DDD as an example.The second part of the

7、question:the use of chemicals in the recent fight against SARS.Frequently we have come across the stories of people applying chemicals to an excessive degree out of panic and fear,which ironically pollutes their environment.Besides this fear for ones health,there may be some other motives for applyi

8、ng chemicals excessively.Have there been any problems with the use of chemicals in the environment of your own area?Describe them.How do local citizens feel about these problems?Tips:As Carson has used contrast in this article,you may report the environmental problems in your own area by the method

9、of contrast.For this purpose,you had better focus on the harms of one kind of chemical only.Despite all the harms they might bring about,could we live a life without chemicals?Tips:Chemicals are widely used to preserve food,to kill pests,to purify the tap water etc.But they are also widely used in g

10、rowing vegetables and fruits,which may well pollute the plant itself while destroying the targeted weeds or pests.A possible conclusion may be it is a necessary evil.At present lets hope that an appropriate use of them may make our life more comfortable and colorful with a minimum degree of harms.Wh

11、at do you think are some possible ways to live in harmony with our natural surroundings?Tips:1.Alert the public to environmental pollution so as to develop an awareness of ecology.2.As for the harms already done,some measures could be taken to make up for the damage,such as planting trees and demand

12、ing a big fine from the factories,which cast away hazardous chemical waste in an unauthorized location.About the Author Rachel Carson(1907 1964):is an American biologist well known for her writings on environmental pollution and the natural history of the Sea.In 1951,she published The Sea Around Us,

13、which won the National Book Award.Her prophetic book Silent Spring(1962)created a worldwide awareness of the dangers of environmental pollution.Among her other works are Under the Sea-wind(1941)and The Age of the Sea.The origin of the articleThis fable was taken from Carsons prophetic book:Silent Sp

14、ring(1962),which was an expose of the long-term effects of pesticides upon our environment.She argued that we had entered the age of chemicals willy-nilly without considering the totality of nature.Processes within nature were working to undo the very things we hoped to achieve using pesticides,ther

15、eby causing large-scale imbalances.In fine,she urged us to better understand nature and to use its processes to our advantage without the use of pesticides.Rev.John E.Gibbons pointed out in his sermon:Always,Rachel,the writer was much refuted when the book first came out.The Time Magazine ridiculed

16、her as talking nonsense and the Readers Digest withdrew the offer to print a selection from Silent Spring and chose instead to reprint the disparaging article from Time.Checkerboard(L.4)(American English)a board that you play checkers on,with 32 white squares and 32 black squares(British Equivalent:

17、draughtboard)Para 1-2:The author presents an imaginary town with its beautiful natural surroundings.Para 3-7:The author presents a bleak picture of the stricken town.Para 8-11:The author reveals the cause of this changethe application of chemical insecticides.Main IdeaBACKREADING SELECTION:TEXT AUNI

18、T ONEA Fable for TomorrowRachel CarsonTHERE was ONCE a town in the heart of America where all life seemed to live in harmony with its surroundings.The town lay in the midst of a checkerboard of prosperous farms,with fields of grain and hillsides of orchards where,in spring,white clouds of bloom drif

19、ted above the green fields.In autumn,oak and maple and birch set up a blaze of color that flamed and flickered across a backdrop of pines.Then foxes barked in the hills and deer silently crossed the fields,half hidden in the mists of the fall mornings.BACKREADING SELECTION:TEXT AUNIT ONE一个关于明天的寓言雷切尔

20、卡尔森 从前在美国中心有一个小镇，那里的万物看上去都与其四周的环境融洽相处。小镇的四周是像棋盘交错的生意盎然的农庄，还有一块块的田地和一座座遍布山坡的果园。春天来了，白色的鲜花云彩般地漂浮在田野上；秋天到了，橡树、枫树和桦树色彩斑斓，在一片松树林间火焰般地燃烧与跳跃。小山上狐狸吠叫，田野间小鹿静静地跃过，所有的一切都在秋天清晨的薄雾中半隐半现。在路的两旁，一年中许多时候，月桂树、荚蒾、桤木、BACKDiscuss the following questions in pairs or groups.QUESTIONS FOR DISCUSSIONFor Comprehension1.What

21、is the article mainly about?2.How should we treat the success or honor we have achieved in high school?3.Whats the authors idea about finishing assignments in college?4.What suggestions by the author are relevant to your study?UNIT ONEBACKDiscuss the following questions in pairs or groups.QUESTIONS

22、FOR DISCUSSIONFor Viewpoints5.What can the university and instructor do to help freshmen quickly adjust to college life?6.How should freshmen plan to seek a balance between study and entertainment?7.What can freshmen do to avoid feeling isolated?8.Is it necessary to make a plan for future career in

23、the first year of college?UNIT ONE1.There was once a town in the heart of America where all life seemed to live in harmony with its surroundings.The town lay in the midst of a checkerboard of prosperous farms,with fields of grain and hillsides of orchards where,in spring,white clouds of bloom drifte

24、d above the green fields.In autumn,oak and maple and birch set up a blaze of color that flamed and flickered across a backdrop of pines.Then foxes barked in the hills and deer silently crossed the fields,half hidden in the mists of the fall mornings.Part I.Para.1-2Part I.Para.1-22.Along the roads,la

25、urel,viburnum and alder,great ferns and wildflowers delighted the travelers eye through much of the year.Even in winter the roadsides were places of beauty,where countless birds came to feed on the berries and on the seed heads of the dried weeds rising above the snow.The countryside was,in fact,fam

26、ous for the abundance and variety of its bird life,and when the flood of migrants was pouring through in spring and fall people traveled from great distances to observe them.Others came to fish the streams,which flowed clear and cold out of the hills and contained shady pools where trout lay.So it h

27、ad been from the days many years ago when the first settlers raised their houses,sank their wells,and built their barns.QuestionsQuestionsWhat are some of the natural objects that Carson describes in her first two paragraphs?Why does Carson do so?What is the quality of the world Carson describes in

28、her first two paragraphs?1.harmony 5hB:mEni(L.2):Agreement in feeling or opinion;accord 感情或意见上一致；调和Language PointsLanguage PointsMy cat and dog live in perfect harmony.我的猫和狗相处得十分和睦。e.g.Jlive in harmony 和睦相处Jbe in harmony with 与.协调一致Jbe out of harmony with 与.不协调一致2.surroundings sE5raJndiNz(L.2):The e

29、xternal circumstances,conditions,and objects that affect existence and development;the environment.围绕物，周围的事物：周围环境、条件和影响存在和发展的事物；境况The house is in beautiful surroundings.这座房屋四周的环境优美。e.g.c.f.environment:(1)the people and things that are around you in your life,for example the buildings you use,the peo

30、ple you live or work with,and the general situation you are in(2)the natural features of a place,for example its weather,the type of land it has,and the type of plants that grow in it3.The town lay in the midst of a checkerboard of prosperous farms,with fields of grain and hillsides of orchards wher

31、e,in spring,white clouds of bloom drifted above the green fields.(L.3-8)译文：译文：小镇的四周是像棋盘交错的生意盎然的农庄，还有一块块的田地和一座小镇的四周是像棋盘交错的生意盎然的农庄，还有一块块的田地和一座座遍布山坡的果园。春天来了，白色的鲜花云彩般地漂浮在田野上座遍布山坡的果园。春天来了，白色的鲜花云彩般地漂浮在田野上.Meaning:The town was surrounded by the farms,which looked like a chessboard composed of fields of thr

32、iving grain and hillsides of satisfactory orchards.In spring,the green fields were colored by beautiful flowers and set by white clouds in the blue sky.noun of place+where(Attributive clause)The town lay in the midst of a checkerboard of prosperous farms,with fields of grain and hillsides of orchard

33、s where,in spring,white clouds of bloom drifted above the green fields.(L.3-8)主句主句定语定语定语定语noun of place+where(Attributive clause)We then moved to Paris,where we lived for six years.我们後来搬到巴黎，在那里住了六年。e.g.This is the house where I was born.我就是出生在这幢房子里。e.g.4.set up(L.9):cause or produce sth.引起,(使)产生The

34、application of the insecticide to the lake set up a chain reaction in the creatures living in it.杀虫剂的应用对湖里的生物产生了连锁反应。e.g.The heavy rain set up some dangerous driving conditions.暴雨导致了一些危险的驾驶状况。e.g.5.In autumn,oak and maple and birch set up a blaze of color that flamed and flickered across a backdrop

35、of pines.Then foxes barked in the hills and deer silently crossed the fields,half hidden in the mists of the fall mornings.(L.8-14)译文：译文：秋天到了，橡树、枫树和桦树色彩斑斓，在一片松树林间火焰般地燃烧秋天到了，橡树、枫树和桦树色彩斑斓，在一片松树林间火焰般地燃烧与跳跃。小山上狐狸吠叫，田野间小鹿静静地跃过，所有的一切都在秋与跳跃。小山上狐狸吠叫，田野间小鹿静静地跃过，所有的一切都在秋天清晨的薄雾中半隐半现。天清晨的薄雾中半隐半现。6.delight ones

36、eye(L.16):to enjoy something very much,especially something that you can see赏心悦目a movie to delight the eye.一部赏心悦目的电影。e.g.also:to delight the mind and eye(v.phr.)c.f.a delight to the eye(n.phr.)赏心悦目的事、物a delight for the eye and the mind(n.phr.)赏心悦目的事、物7.variety(L.23):the quality or condition of being

37、 various or varied;diversity.多样化多种多样或变化多端的性质或状况；多样性He didnt come for a variety of reasons.他因种种原因没来。e.g.We all need variety in our diet.我们都需要饮食多样化.e.g.variety:diversity:1.a variety of something:a lot of things of the same type that are different from each other in some way 变化，多样（性）变化，多样（性）e.g.a wide/

38、great/endless etc variety of something:Cafe Artista offers a wide variety of sandwiches.The girls come from a variety of different backgrounds.1.U the fact of including many different types of people or things多种；各多种；各种各样的人、物种各样的人、物e.g.cultural/ethnic/linguistic etc diversity文化文化/种族种族/语言语言多样性多样性:The

39、curriculum will take account of the ethnic diversity of the population.课程的安排会考课程的安排会考虑到种族的多样性的。虑到种族的多样性的。2.sing a range of different people,things,or ideas 多样多样性性 -synonym:variety1e.g.a diversity of opinions2.U the differences within a group,set of actions etc that make it interesting 花样，不同花样，不同e.g.

40、I really like the variety the store has to offer.give/add/bring variety(to sth.)(=make sth.more interesting):Occasionally working from home adds variety to a job.3.C a type of thing,such as a plant or animal,that is different from others in the same group 品种，种类品种，种类e.g.variety of:The lake has more t

41、han 20 varieties of fish.8.and when the flood of migrants was pouring through in spring and fall people traveled from great distances to observe them.(L.23-25)译文：译文：在候鸟群潮涌而来的春秋季节，人们从大老远的地方慕名前来欣赏。在候鸟群潮涌而来的春秋季节，人们从大老远的地方慕名前来欣赏。Meaning:when spring and autumn came,large groups of migratory birds would f

42、lock to the town,attracting people from many distant places to enjoy viewing them.9.So it had been from the days many years ago when the first settlers raised their houses,sank their wells,and built their barns.(L.26-28)译文：译文：所以，从许多年前开始，第一批居住者就在所以，从许多年前开始，第一批居住者就在这里盖房挖井，搭起了自己的谷仓。这里盖房挖井，搭起了自己的谷仓。Mean

43、ing:So,those who first settled here began to build their houses,dig their wells,and build their barns long ago.noun of time+when(Attributive clause)So it had been from the days many years ago when the first settlers raised their houses,sank their wells,and built their barns.(L.26-28)主句主句定语定语定语定语noun

44、 of time+when(Attributive clause)Archaeological studies show that it has been from the days twenty or thirty thousand years ago when human beings settled in the western area of Fujian province.考古发现闽西两三万年前就有人类居住。e.g.3.Then a strange blight crept over the area and everything began to change.Some evil

45、spell had settled on the community:mysterious maladies swept the flocks of chickens;the cattle and sheep sickened and died.Everywhere was a shadow of death.The farmers spoke of much illness among their families.In the town the doctors had become more and more puzzled by new kinds of sickness appeari

46、ng among their patients.There had been several sudden and unexplained deaths,not only among adults but even among children,who would be stricken suddenly while at play and die within a few hours.4.There was a strange stillness.The birds,for example-where had they gone?Many people spoke of them,puzzl

47、ed and disturbed.The feeding stations in the backyards were deserted.The few birds seen anywhere were moribund;they trembled violently and could not fly.It was a spring without voices.On the mornings that had once throbbed with the dawn chorus of robins,catbirds,doves,jays,wrens,and scores of other

48、bird voices there was now no sound;only silence lay over the fields and woods and marsh.Part II.Para.3-7Part II.Para.3-75.On the farms the hens brooded,but no chicks hatched.The farmers complained that they were unable to raise any pigs-the litters were small and the young survived only a few days.T

49、he apple trees were coming into bloom but no bees droned among the blossoms,so there was no pollination and there would be no fruit.6.The roadsides,once so attractive,were now lined with browned and withered vegetation as though swept by fire.These,too,were silent,deserted by all living things.Even

50、the streams were now lifeless.Anglers no longer visited them,for all the fish had died.7.In the gutters under the eaves and between the shingles of the roofs,a white granular powder still showed a few patches;some weeks before it had fallen like snow upon the roofs and the lawns,the fields and strea