新视野大学英语视听说教程(第二版)第三册答案__最新版第二章_答案.doc

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1、Uint2Our globe is in danger!I.Lead inTask 1:sandstorm ; air pollution ; deforestation?water pollution ; melting polar ice cap ; light pollution?drought ; desertification ; litteringII. Basic Listening PracticeKeys: 1.B 2.D 3. A 4.A 5.CIII. Listening InTask 1:We should have proper respect for nature!

2、?Key:?(1)nature?(2)environmental problem?(3)pollution?(4)promote?(5)aware of?(6)from occurring?(7)law?(8)throw away?(9)fined?(10)trash?Task 2:River pollution?Keys:1.D 2.D 3.A 4.B 5.CIV. Speaking OutMODEL1?MODEL2?MODEL3?V. Let?s TalkTask 1:Disappointment over climate negotiationsKeys:1) doesnt really

3、 actually commit anyone to doing anything,?2) the atmosphere simple cant take the kind of emissions weve been seeing in the business-as-usual scenario and theres no real commitment to change that.?3) Theres no real commitment to put serious money on the table?4) Its not backed by action,5) It does n

4、ot constitute a. a deal.?6) Its a hollow shell?7) it lacks anything on emissions cuts8) Theres no guarantee that there will be new money, that the money will be real, that theres actually a commitment to get there, or that it will be channeled in new ways,?Task 2:Whats your answer? Two speakers hold

5、 a negative attitude toward the world climate conference.?Task 3:Lets group work!Developed countries should bear more responsibilities.?First, they caused most of the world pollution in their industrialization process.?Second, they are already economically advanced, with more funds to deal with poll

6、ution problems.?On the other hand, developing countries caused less pollution in the past, and now they need rapid development.?Therefore, an international agreement the Kyoto Protocol in 1997 stipulated common but differentiated responsibilities for developed and developing nations, which means tha

7、t both should be responsible for environmental protection and cut carbon dioxide emissions, but the former must take more responsibility.?Recently, however, some wealthy countries have insisted that developing countries like China should shoulder more responsibilities.?VI. Further Listening and Spea

8、kingListening Task:Task1: The environment and the development?Script:Li:Hi, Professor Wang.?Im Li Lin, a correspondent for the university newspaper.?The staff and students here are getting more and more interested in the relationship between the environment and economic development.?What do you thin

9、k is the most serious environmental problem at present? What measures should we adopt to improve the environment and develop the economy at the same time?Wang: There are many environmental problems: air pollution, water pollution, desertification, overfishing, destruction of natural habitats, acid r

10、ain, overconsumption of wild animals and plants, etc. But lying at the center of all those problems, as I see it, is the contradiction between economic growth and the environment.Since the United Nations Earth Summit in 1992, growing number of people and governments have adopted the new idea of sust

11、ainable development. This means todays economic growth should not wipe out the resources and options for future generations. Planning and development should ensure not only economic growth, but also social advancement and environmental health. In other words, some economic behavior must be restricte

12、d or controlled. Instilling principles of sustainable development into government planning, resource management and economic policy is the most important step China can take to solve its environmental problems.China has already taken some remarkable steps to reduce damage to the environment. For ins

13、tance, following the huge floods of 1998, the government banned logging in the upper reaches of the Yangtze River in order to protect forests and reduce the risk of floods.Still, the basic contradiction between the environment and development persists. Much work is to be done before we can achieve t

14、he aim of a balance between economic growth and the environment.?Keys:(1)water pollution?(2)overconsumption?(3)economic growth?(4)resources?(5)social advancement?(6)restricted?(7)government planning?(8)economic policy?(9)remarkable steps?(10)balance?Task 2: Thick cloud of pollution covering southern

15、 Asia?ScriptA United Nations study says a thick cloud of pollution covering southern Asia threatens the lives of millions of people. Scientists say the pollution could increase lung disease and cause early death. The cloud is also damaging agriculture and affecting rainfall levels. It has affected m

16、any countries in southern Asia. The pollution cloud is three kilometers high. Scientists say it can move halfway around the world in a week.The cloud is the result of forest fires, the burning of agricultural waste, and huge increases in the burning of fuels by vehicles, industries, and power statio

17、ns.Pollution from millions of bad cooking stoves has made the problem worse.?Many poor people burn fuels like wood and animal waste in such stoves.Scientists say the cloud of pollution appears to cool the land and oceans by blocking sunlight.?They say it reduces the amount of sunlight reaching the E

18、arths surface by as much as 15 percent.At the same time, heat inside the cloud warms the lower parts of the atmosphere.Harmful chemicals from the cloud are mixing with rainfall.?This acid rain damages crops and trees and threatens public health.?Scientists are concerned that the pollution will inten

19、sify during the next 30 years as the population of Asia increases to an estimated 5,000 million people.?Keys:1.D 2.B 3.A 4.C 5.CTask3: Mountain regions face a number of dangersScriptMountain people around the world are in great danger of the negative effects of the worsening environment, according t

20、o a UN report.As global warming and deforestation accelerate and technology makes wilder places more accessible, environmental and social pressures on the worlds remotest regions increase.The UN has found that many mountainous regionsinhabited by one out of five of the worlds peopleare barely recogn

21、izable when they are compared to what they were like 60 years ago.This is mostly because forests were cut to make way for cattle grazing and agriculture.The authors of the UN study expect 98 percent of the mountain areas to experience severe climate change by 2055.Biological losses are expected to b

22、e heavy.?The mountains of Europe, parts of California and the northwest Andes in South America are among the most threatened mountain areas in the world and should be given priority in conservation.The UN is anxious to raise awareness of the problems facing mountain areas because they are inhabited

23、by some of the most vulnerable people.?These people could lose their culture and their livelihood with even the smallest shifts in climate.At the same time, many mountain regions are losing people. Thousands of villages in Europe are deserted most of the year.?In other areas like Nepal, people are d

24、rifting to the cities in search of work.?Keys:?(1)negative?(2)report?(3)warming?(4)pressures?(5)mountainous?(6)barely?(7)make way for?(8)expect 98 percent of the mountain areas to experience severe climate change by 2055?(9)The UN is anxious to raise awareness of the problems facing mountain areas?(

25、10)Thousands of villages in Europe are deserted most of the year?Viewing and speaking:Task 1:Santas home town in dangerScriptWeather experts may have found a new problem caused by global warming, one which many people will pay attention to: There are signs that Santas home in the North may be in tro

26、uble because of warmer temperatures.The Finnish town of Rovaniemi on the Arctic Circle, which many Europeans say is the home of Santa Claus, has had its warmest winter in 40 years.As a result, there has been much less snow than usualmeaning no snowmen, no snowballs, and possibly not enough snow for

27、Santa to ride his sleigh on.More important for local residents, it may mean fewer tourists, as well. Santas wintry home town normally attracts thousands of visitors each year, and millions of dollars.Anne Pelttari-Bergman, the towns tourist director, worries that the town could be in trouble if snow

28、 levels do not return to normal.?She explains: Snow is really important for us, of course, for Santa Claus, for Christmas tourism, and also for our winter tourism because winter is our best season. It is really important for us.Weather experts and town residents are hoping this warm winter is an one

29、-time thing. Few people can imagine a holiday when even Santa does not have a white Christmas.?Keys:(1)signs?(2)warmer temperatures?(3)warmest?(4)snow?(5)attracts?(6)trouble?(7)normal?(8)season?(9)one-time?(10)white?Task 2:Talk after viewingScriptThe image of Santa Claus flying in a sleigh pulled by

30、 reindeer and leaving toys and gifts for every child is known worldwide, and Santa Claus has become the most beloved of Christmas symbols.But if the weather at Santas home town were to become so warm that there was no more snow at Christmas, Santa Claus would lose his charm.?So snow is really import

31、ant for Santa Claus, for his home towns Christmas tourism, and its winter tourism as winter is the best season in Santas home town.?Unit 2 testPart IKeys: 1.C 2.C 3.B 4.C 5.DPart II(1)chemicals?(2)atmosphere?(3)particles?(4)trapped?(5)lasts?(6)human-based?(7)progressed?(8)Even in Ancient Rome people

32、 complained about smoke put into the atmosphere?(9)Air pollution can have serious consequences for the health of human beings?(10)Cities with large numbers of automobiles or those that use great quantities of coal often suffer most severely from air pollution problems?Part III?1. A 2.C 3.D 4.C 5.BPart IV?1. B 2.C 3.D 4.C 5.C 6.A 7.D 8.D 9.B 10.C