大学体验英语英语视听说教程3U1课件.pptx

1、UNIT 1Dont Say Goodbye第1页/共65页 Nothing is more terrible than ignorance in action.Desiderius Erasmus第2页/共65页Background InformationUnit OverviewLesson 1Lesson 2Supplementary ReadingHome listening第3页/共65页 Although animal extinction is part of the natural cycle,if all the species disappeared leaving onl

2、y us humans behind,the human race would not be able to survive.The rapid urbanization of cities in modern times poses a great threat to the existence of some animals.Along with the loss of the natural habitats,man-made activities add fuel to the flames,accelerating the rate at which species disappea

3、r.In this unit,endangered animals in America and other countries will be introduced.Students will get to know the current situation of some animal species through reading,listening and viewing.Various activities will inspire students to talk about humans impact on nature by using the wordsand expres

4、sions in this unit.Finally,they will conduct a poll on“college students awareness of endangered species in China”with their peers.Unit Overview第4页/共65页Background Information Industrialization,economic development and population pressure have in the past two centuries combined to result in a rapid lo

5、ss of biological diversity and an acceleration in the number of species disappearing from the face of the earth.According to the IUCN(World Conservation Union),in the last 500 years human activity has forced 816 species to extinction.As biological diversity is lost,we also lose the possibility of ta

6、pping as yet unknown resources for agriculture,industry,and health care.Chinas biological resources are among th e worlds richest.This is not only due t o its size,but also due to the tremendous diversity of habitats it provides for wild plants and animals.The worlds highest and lowest points are in

7、 Chinese territory,and it has a variety of ecosystems that is unequalled else where,from glaciers t o coral reefs,from deserts to tropical rainforests.As a result,China s diversity of wild plants and animals is greater than all of North America or Europe,and equal to one eighth of all species on Ear

8、th.第5页/共65页Basic facts There are over 385 threatened species in China(according to the IUCN Red List)Giant pandas have lost half their habitat between 1974 and 1989 In the past century,the world lost over 90%of its tiger population;in China,there are only about 90 tigers left in the wild Endangered

9、species in China include the giant panda,golden monkey,South China tiger,Siberian tiger,Asian elephant,black-necked crane,crested ibis,saunders gull,dugong,Yangtze river dolphin,plus many lesser-known species.Key threats Habitat loss,fragmentation,and degradation because of human activities such as

10、logging or mineral exploitation Wildlife trade and the illegal hunting of species such as musk deer and bears,whose body parts are used in traditional Chinese medicines Pollution and climate change第6页/共65页Solutions The best way to preserve biological diversity is to maintain flora and fauna in their

11、 natural ecosystems.This can be achieved by controlling unsustainable actions such as poaching,as well as by setting up protected areas,and encouraging sustainable use of natural resources.Because the existence of flora and fauna are also threatened by pollution and climate change,sustainable develo

12、pment and the decrease of wasteful consumption in affluent areas are ultimately the key.第7页/共65页Lead-inAudio studioVideo studioSpeaking workshopProject bulletin 第8页/共65页Task 1Task 2Task 3第9页/共65页Task 1 Describing the PictureDescribe the picture first and then discuss what might be the most appropria

13、te title for the picture.What may be the best way to preserve animals in danger?What is the implication of the picture?第10页/共65页Task 2 Reflecting on the Reading 1.Why did Smits name the little orangutan“Uce”?Answer:It takes in orphaned or displaced animals and resettles them in protected rainforests

14、.Answer:Smits named her Uce,for the gasping sounds shed been making when he rescued her.2.What are the responsibilities of Smits organization,the Borneo Orangutan Survival Foundation(BOS)?第11页/共65页3.What inspiration did Smits gain on the mission to save the endangered orangutan?Answer:He learned the

15、 fact that we human cannot survive once we lose other species;our fates are linked.4.Why did Smits fail to make a big difference to slow down the decline in the orangutan population despite his dedication?Answer:Increased illegal logging as well as the booming of palm oil business resulted in defore

16、station,which brought a series of severe consequences that devastated the orangutans natural habitat.5.What measure did Smits adopt for the sake of saving orangutans in 2003?Answer:He grew a new rainforest,designed as a refuge for orangutans and a model for a new kind of human community.第12页/共65页Tas

17、k 3 Expanding Your Vocabulary A.most importantB.to show the nature of or express(sth)C.to dare to go(somewhere dangerous or unpleasant)D.area of land reserved especially as a habitat for nature conservationE.to make sth continue at the same level,standard,etc.F.to change or make sth change from one

18、form,purpose,system,etc.to another1.reflect2.reserve3.venture4.essential5.convert6.maintain第13页/共65页Audio StudioTask 1Task 2第14页/共65页Audio Task 1 Identifying the Gist 1.What is scientists biggest concern about macaques?A)The sharp decline in numberB)The rapid urbanization of Singapore.C)The devastat

19、ing natural environment.2.What accounts for monkeys running from reserves into the city?A)It is hard for them to find food in their habitat.B)They enjoy living side by side with humans.C)There is not much space left for them.第15页/共65页Audio Task 2 Checking the Facts 1.There are also some parts of the

20、 island that still reflect how it used to look _.2.The macaques have grown accustomed to being fed,so _ _ as a source of food.3.As the monkeys depend more on humans for food,they venture further from _.4.These macaques are French species so they live _ _.5.After all,the macaques _ the rainforests ec

21、osystem.before urban development took overthey look tohumanstheir natural habitat.on the edges of therainforestsare essential to maintaining第16页/共65页 While some visitors to Singapore expect a high-tech city,there are also some parts of the island that still reflect how it used to look before urban d

22、evelopment took over.In one of the main Central Nature Reserves,monkeys still roam freely,living side by side with humans.The macaques have grown accustomed to being fed,so they look to humans as a source of food.But this in itself is problematic.As the monkeys depend more on humans for food,they ve

23、nture further from their natural habitat,a phenomenon that has worried experts.There is just not enough space.Essentially,in much of Southeast Asia weve seen a lot of habitat loss where rainforest has been destroyed and converted into human settlement.Singapore is a very urbanized city,and its taken

24、 a lot of space,so there is not much space left for long-tailed macaques.We really need to stop encroaching into nature reserves.We need to stop building the houses so nearby the reserves,which then causes the problem of the macaques coming into peoples houses and raiding them.These macaques are Fre

25、nch species so they live on the edges of the rainforests.If humans keep building the houses so near the reserves,there will definitely be a constant human-macaque conflict issue.After all,the macaques are essential to maintaining the rainforests ecosystem.More should be done to protect them.Script第1

26、7页/共65页Video Studio)Task 1Task 2Task 3第18页/共65页Video Task 1 Matching&Predicting1.These creatures _ statistics by most people.2.Maybe we can _ to keep them with us here on earth.3.America seems to be an endless _ hostile wildness.4.Human beings did not even know it was possible for a species to _.5.W

27、hen you are _ America,you understand why so many plants and animals are endangered.are known asmake the effortexpanse togo extinct.driving across第19页/共65页Video Task 2 Checking Your ComprehensionWatch this part of the video clip and answer the following questions.1.What places have the two photograph

28、ers visited?Answer:The whole of America.2.What is the mission of the two photographers?Answer:To take photos of endangered animals.3.What was the common enemy that the first Europeans on America had to conquer?Answer:Nature.4.How many species have slipped into extinction?Answer:Hundreds of species.5

29、.Why are so many plants and animals in danger?Answer:They are losing their homes.第20页/共65页Video Task 3 Bridging the Gap Its a sobering fact that there is an extinction crisis.There have always been species going extinct time to time.But now,human activities push them to _.We are in the midst of a bi

30、ological catastrophe.It is the greatest since the end of the age of dinosaurs,_ _ _What I hope you succeed in doing is to make endangered species _;make it clear to them that every endangered species has a _,_ _There is a place in the world bring us _ _;make usknow that they are companions in the bi

31、osphere.They are not just something out there you look at once in the wild.They are a part of our existence._.a thousand timessixty-fivemillion years ago.a vivid presence in thelives of people;namehasa million-year history.face toface with each one of those speciesTheyre a part of us第21页/共65页 These

32、creatures are known as statistics by most people.But we are treating them as individuals,trying to capture their personalities.We want to see them face to face,eye to eye,make themunavoidable.The series is now their mission in life,their calling and their passion.For the twophotographers,its an endl

33、ess odyssey across America to show the faces of creatures we may never see again.These creatures are in danger.Theyre slipping away.But if people can see them,maybe we can make the effort to keep them with us here on earth.“Ok.Make here.Great!Great!”The first Europeans on this continent had a common

34、 enemy to conquer.It was called nature.America seemed to be an endless expanse of hostile wildness.Bison wandered along the Potomac.Grizzly bears strolled along the beaches of California.Human beings did not even know it was possible for a species to go extinct.But we learned.Hundreds of creatures s

35、lipped into extinction.Even our national symbol was disappearing before our eyes.When you are driving across America,you understand why so many plants and animals areendangered.Theyre losing their homes.Were building a human world,and losing a wild one.第22页/共65页 Expert:“Its a sobering fact that ther

36、e is an extinction crisis.There have always been species going extinct time to time.But now,human activities push them to a hundred to a thousand times.We are in the midst of a biological catastrophe.It is the greatest since the end of the age of dinosaurs,sixty-five million years ago.What I hope yo

37、ull succeed in doing is to make endangered species a vivid presence in the lives of people;make it clear to them that every endangered species has a name,has a million-year history.There is a place in the world bring us face to face with each one of those species;make us know that they are companion

38、s in the biosphere.They are not just something out there you look at once in a while.But they are a part of our existence.They re part of us.”第23页/共65页Speaking WorkshopTask 1Task 2第24页/共65页Speaking Task 1 SummarizingTips:.on the mission to.on the brink of.What.intend to do is to.Just as.note that.We

39、 human beings are in the midst of.第25页/共65页Speaking Task 1 SummarizingSummary:The two photographers in the video are on their mission to visit creatures in danger and take portraits of endangered species on the brink of extinction.What they intend to do is to make efforts to keep them with us on Ear

40、th by showing the faces of creatures we may never see again.This would promote the awareness about maintaining biodiversity on earth.Just as the experts note that it is human activities that have pushed species to extinction a hundred to a thousand times,we human beings are in the midst of a biologi

41、cal catastrophe.第26页/共65页Situation1.Being listed an endangered species in the International Union for Conservation of Nature(IUCN),the red-crowned crane is a first class protected bird in China.Xu Xiujuan,the first red-crowned crane trainer in China,stayed in Yancheng National Red-crowned Crane Natu

42、re Reserve to protect these birds after her graduation from university.She made painstaking contributions to their preservation.In an attempt to save a white swan,she gave up her life at the age of 23.Speaking Task 2 Solving the ProblemWork with your peers on the situation below and try to come up w

43、ith a solution to the problem described.You are expected to share your ideas and justify yourself in this process.Use as many phrases from the“Expressions&Structures to Use”box as possible.第27页/共65页Situation2.Work in pairs.Make up a conversation based on the background information mentioned above.In

44、 this role play,one student should act as a colleague of Xu Xiujuan who contends that such a brave deed should be respected by all the Chinese college students.They shouldnt feel hard-done-by to take on such a job;instead,they should take responsibility to save the endangered species as it is for a

45、worthwhile cause.The other student should act as a poacher of the red-crowned cranes who refuses to admit that the deed is praiseworthy.Speaking Task 2 Solving the ProblemWork with your peers on the situation below and try to come up with a solution to the problem described.You are expected to share

46、 your ideas and justify yourself in this process.Use as many phrases from the“Expressions&Structures to Use”box as possible.第28页/共65页Situation3.You have 15 minutes to discuss within your own group.4.Several groups will be selected to present their role plays.The rest of the class will vote for the i

47、ndividual who presents the most convincing speech.Speaking Task 2 Solving the ProblemWork with your peers on the situation below and try to come up with a solution to the problem described.You are expected to share your ideas and justify yourself in this process.Use as many phrases from the“Expressi

48、ons&Structures to Use”box as possible.第29页/共65页Speaking Task 2 Solving the ProblemAlternative Situation1.Work in groups.Imagine you are the host of a ceremony.You are now in the ceremony of“10 Public Figures to Have Moved China”and going to deliver a speech to deceased Xu Xiujuan as you stand on the

49、 stage.What would you say?2.You have 15 minutes to discuss within your group.3.Select two groups to speak out their statements from two different perspectives.The rest of the class will vote for the most eloquent and convincing group.第30页/共65页Work on the following real-life project with your group m

50、embers and present your report in the next class.Real-Life ProjectProject Bulletin第31页/共65页Alternative ProjectProject Bulletin第32页/共65页Lead-inAudio StudioVideo StudioSpeaking WorkshopTeamwork Show第33页/共65页Task 1Task 2第34页/共65页Task 1 BrainstormingWork in pairs and name animals that were declared exti