listenthisway3unit1市公開課金獎市賽課一等獎?wù)n件

1、Listen This Way 3 英語聽力教程 3 第1頁Unit One Is the Earth Being Squeezed Dry?第2頁Part .Getting ready vicious adj. 惡毒；惡性vicious circle 惡性循環(huán)； virtuous circle 良性循環(huán)monsoon season 雨季；季節(jié)性大雨；hygiene n. U 衛(wèi)生（學(xué)），保健學(xué)summit n. C 政府首腦會議，峰會；EU-China summit 中歐峰會think tank（政治、社會、經(jīng)濟問題）智囊團(tuán)， 智庫，教授小組第3頁Proper names:Carbon di

2、oxide （二氧化碳）Amazon forest （亞馬遜熱帶雨林）rainforestthe Sahara Desert （沙哈拉沙漠）Rio de Janeiro 里約熱內(nèi)盧(巴西共和國舊首都) Brasilia 巴西利亞 (the capital of Brazil) （1960）Part .Getting ready 第4頁Part . Getting ready B: Listen to two short extractions. Write down the environmental issues mentioned in them.1. burning of the for

3、ests /tree removal (deforestation) /reduction of the worlds rain forests2. global warming /greenhouse effect /emissions of CO2摘錄第5頁Tapescript:1. The Amazon forests are disappearing because of increased burning and tree removal. In September, satellite pictures showed more than 20 000 fires burning i

4、n the Amazon. Experts say most of these fires were set by farmers. The farmers were attempting to clear land to grow crops.Part .Getting ready 第6頁 The World Wildlife Fund says another serious problem is that too many trees in the Amazon rain forest are being cut down. The World Wildlife Fund says th

5、e fires show the need for urgent international action to protect the worlds rain forests. The group warns that without such action some forests could be lost forever.第7頁Tapescript:2. Environmental issues swell to the full in Berlin this week, for the UN sponsored conference on global warming and cli

6、mate change is the first such meeting since the Rio summit three years ago. 膨脹；增大贊助第8頁 With scientists and governments now generally ready to accept that the earth climate is being affected by emissions of CO and other greenhouse gases, over a hundred countries are sending delegations. But how much

7、progress has been made implementing the greenhouse gas reduction target agreed on at Rio? Simon Dary reports 溫室氣體（阻止地球上空熱量散發(fā)并引發(fā)溫室效應(yīng)氣體，尤指二氧化碳和甲烷）代表團(tuán)實施；執(zhí)行第9頁Part . The Earth at risk ()clear-cut adj. 輪廓鮮明；明確；stabilize verb I,T （使）穩(wěn)定 The price of coffee has been rising and falling sharply, but has now (

8、been) stabilized.ranch n. 大牧場hardwood 硬木材；硬木樹；闊葉樹; softwood 軟木材，針葉樹)unproductive 貧瘠wasteland 荒地第10頁ranch dressing 牧場色拉醬 make way for 讓路；為.開路domestic animal 家畜iron ore mine 鐵砂礦at an alarming rate 以一個驚人速度at this / that rate intensive agriculture 集約農(nóng)業(yè)Part . The Earth at risk ()第11頁 Intensive farming or

9、 intensive agriculture is an agricultural production system characterized by the high inputs of capital, labor, or heavy usage of technologies such as pesticides and chemical fertilizers relative to land area. This is in contrast to many forms of sustainable agriculture such as organic farming or ex

10、tensive agriculture, which involve a relatively low input of materials and labor, relative to the area of land farmed, and which focus on maintaining long-term ecological health of farmland, so that it can be farmed indefinitely.Part . The Earth at risk ()第12頁 Answer the questions:1.What is the vici

11、ous circle mentioned by Brian Cowels? More people more firewood fewer trees More domestic animals more plants fewer available plants more desert move south desert expanding southno grass Key: the impact of the population on the environment.Part . The Earth at risk ()第13頁Tapescript: The Earth at risk

12、 ()Brian Cowles: Starting with Africa, our film shows the impact of the population on the environment. Generally speaking, this has caused the Sahara Desert to expand. Its a bit of a vicious circle we find. People cut down trees for firewood and their domestic animals eat all the available plants an

13、d so consequently they have to move south as the Sahara Desert expands further south.第14頁 (A) Answer the questions:2. Why is the rain so important to soil? Growing crops stabilize soil, without them the top soil just blows away. But if there isnt enough rain the crops dont grow. 第15頁Typescripts: The

14、 Earth at risk () In the USA, as you know, intensive agriculture requires a plentiful supply of rain for these crops to grow, I mean if there isnt enough rain the cropsdont grow. And growing crops stabilizes soil, without them the top soil just blows away. This is also true forany region that is int

15、ensely farmed most of Europe, for example.第16頁3. What are some of the reasons that tropical forests are being cut down? People try to grow food to support themselves or to create ranches where cattle can be raised, or to get hardwood for export, or to make way for mines. (A) Answer the questions:第17

16、頁 In South Africa (as in Central Africa and Southern Asia) tropical forests are being cut down at an alarming rate. This is done so that people can support themselves by growing food or to create ranches where cattle can be raised to be exported to Europe or America as tinned meat. jungle was destro

17、yed to make way for an iron ore mine. Huge numbers of trees are being cut down for export as hardwood to Japan, Europe, USA to make things like luxury furniture.Tapescript: The Earth at risk ()第18頁(B) Outline():. Environmental problems in different continents A: Africa 1. expansion 2. no grass for a

18、nimals to eat (East Africa) B: . 1. problem intensive farming / agriculture 2. potential problem .Sahara DesertNorth America & most of Europetop soil blowing away第19頁 C: South America, Central Africa & Southern Asia 1. problem . 2. consequences a. soil thin unproductive wasteland b. . c. . animal /

19、plant species becoming extinctclimate change for the whole world(B) Outline():tropical forests destruction第20頁Tape script: The Earth at risk () These forests cant be replaced the forest soil is thin and unproductive and in just a few years, a jungle has become a waste land. Tropical forests contain

20、rare plants and animals one animal or plant species becomes extinct every half hour. These forest trees also have worldwide effects. You know, they convert carbon dioxide into oxygen. The consequences of destroying forests is not only that the climate of that region changes but this change affects t

21、he whole world.第21頁Part III The Earth at risk (II)Vocabulary:depressing adj. 使人沮喪forward-looking adj. （褒）向前看；有遠(yuǎn)見practically 1.幾乎,差不多 2.實際上;實際上presumably prizumbli據(jù)推測;大約,可能;想必第22頁Proper Names:Bangladesh ,bglde 孟加拉國 Nepal nip:l 尼泊爾The Blue Nile 青尼羅河Himalayas ,himleiz range 喜馬拉雅山脈Ganges River 恒河（India）

22、the International Union for the Conservation of Nature (IUCN): 國際自然保護(hù)聯(lián)盟Part III The Earth at risk (II)第23頁A: Answer the questions:1. Why is some flooding man-made?A: Trees would hold rainfall in their roots. When forests in the higher up-river have been destroyed by men, all the rain that falls in t

23、he monsoon season flows straight into the river and starts the flooding.Part III The Earth at risk (II)河上游第24頁Tapescript： the whole of Bangladesh is flooded and this is getting worse. You know, the cause is that forests have been cut down up in Nepal and India, I mean, higher up-river in the Himalay

24、as. Trees would hold rainfall in their roots, but if theyve been cut down all the rain that falls in the monsoon season flows straight into the river Ganges and floods the whole country.恒河第25頁2. What does Brian imply when he says the national governments have to be forward-looking?A: He implies that

25、 some national governments just consider the results of their policies in the near future, or just think as far ahead as the next election.Part III The Earth at risk (II)第26頁Tapescript： the national governments have to be forward-looking and consider the results of their policies in ten or twenty ye

26、ars, not just think as far ahead as the next election.第27頁：Outline (II)II. Reasons for some “natural” disasters mainly man-made A. . B. flooding in SudanIII. . A. national governments forward-looking B. . C. stopping using hardwood for furniture-making D. educating people to realize the consequences

27、 flooding in BangladeshAction to be takenpopulation control第28頁Part IV The Effects of Global Warmingfossil fuel礦物燃料(如煤、石油、天然氣等) equator 赤道contamination 污染，玷污 bacteria 細(xì)菌 diarrhea 腹瀉environmental refugee 環(huán)境難民Britains Climate Prediction Center英國天氣預(yù)測中心University of London，London School ofHygiene&Tropic

28、al Medicine倫敦大學(xué)衛(wèi)生與熱帶醫(yī)學(xué)院第29頁Do you know what some of the effects of global warming are?5 Deadliest Effects of Global WarmingSpread of diseaseWarmer waters and more hurricanesIncreased probability and intensity of droughts and heat wavesEconomic consequencesPolar ice caps melting 極地冰冠Part IV The Effec

29、ts of Global Warming干旱，旱災(zāi)熱浪; 熱 (輻射) 波(南北極常年不融) 冰蓋，冰冠第30頁I. . A. average temperature B. yearly increaseII. Causes of global warming Part IV OutlineWarming up of the world第31頁Tapescript： The world is warming up. We know this because average temperatures are the highest since scientists started measuri

30、ng them 600 years ago. The increase is about 0.2 every year. This may seem very slight, but we know that slight changes in temperature can have a big effect on other things. Most scientists now believe this global warming is due to human activity.第32頁. . A: great changes in rainfall B: rise in the s

31、ea level C : . D: health and social problems Part IV OutlineEffects of global Warmingreduced potential for food production第33頁 Tape script：computers are being used to predict what this may mean. They showed that there could be great changes in rainfall and the rise in the sea level as ice caps in th

32、e north and south poles melt. This could have a serious effect on agriculture according to Prof. Martin Perry . He says it could become more difficult to grow food in the tropics at lower latitude nearer to the equator. “The most clear pattern emerging is the possibility of reduced potential product

33、ion in lower latitude regions, ”第34頁Part IV OutlineIII. Effects of global warming D. health and social problems 1. environmental refugees 2. change of patterns of distribution of insects and infective agents 3. . .IV. Time to take actionchange of patterns of hear-related food poisoning, etc.第35頁Tape

34、script： Food production is only one area that could be affected. There could also be health and social problems “Already a number of rural populations around the world are suffering from the decline of agricultural systems. Climate change would add to this. And we would expect that it would accelera

35、te the flood of environmental refugees around the world”第36頁Tapescript：A climate refugee is a displaced person caused by climate change-induced environmental disasters. Such disasters are evidence of human-influenced ecological change and disruption to Earths climate system, primarily through the em

36、issions of green house gases.第37頁Tape script： “But it includes not just the food production systems, but the patterns of distribution of the insects and infective agents around the world. It includes likely effects on patterns of heat-Related food poisoning, water contamination and diarrhea diseases

37、, lots of things like this that would respond very sensitively to changes in climate.”第38頁Part V Do you know?abundant 豐富，充裕scarce 缺乏，不足cubic 立方glacier 冰河，冰川groundwater 地下水freshwater 淡水 saltwater 海水evaporate 蒸發(fā)runoff 徑流，溢流, 流走物第39頁International Food Policy Research Institute (IFPRI) 國際食品政策研究所indigenous 本土scarcity n. 缺乏,短缺West Bangal 西孟加垃 take a back seat (口)冷板凳Arsenic poisoning 砷中毒（砒霜中毒）Part V Do you know?第40頁A:1. F In some parts of the world, water consumption has increased five fold.2. F Its often been said that water rather than oil will be the cause of warfare in the next century (21st c