最新大学英语听力教程第三册答案主编张民伦.docx

1、最新大学英语听力教程第三册答案主编张民伦英语听力教程3答案与听力材料 呵呵.考试一路顺风.UNIT 1A.B. Keys:Part I Getting ready 1: burning of the forests/tree removal (deforestation)/reduction of the worlds rain forests 2: global warming/greenhouse effect/emissions of CO2Part II The Earth at risk (I)A. Keys:1. a. More people-?more firewood-?few

2、er treesb. More domestic animals-?more plants-?fewer available plants a, b-? More desert-?move south-?desrtt expanding south-?no grass2. Growing crops stabilize soil, without them the top soil just blows away. But if there isnt enough rain the crops dont grow. 3. People try to grow food to support t

3、hemselves or to create ranches where cattle can be raised, or to get hardwood for export, or to make way for an iron ore mine B. Keys: 1: Sahara Desert 2: North America & most of Europe 3: top soil blowing away 4: tropical forests destruction 5: animal/plant species becoming extinct 6: climate chang

4、e for the whole worldPart III The Earth at risk (II)A. Keys: 1: Trees would hold rainfall in their roots. When forests in the higher up-river have been destroyed, all the rain that falls in the monsoon season flows straight into the river and starts the flooding. 2: He implies that some national gov

5、ernments just consider the results of their policies in the near future, or just think as far ahead as the next election.B. Keys: 1: flooding in Bangladesh 2: Action to be taken 3: population controlPart IV More about the topic: The Effects of Global WarmingKeys: 1: Warming up of the world 2: Effect

6、s of global 3: reduced potential for food production 4: change of patterns of hear-related food poisoning, etc.Part V Do you know?A. Keys: 1: F 2: F 3: F 4: F 5: TB. Keys:Dos 1: your towels 2: Cut out 3: a wall-fire 4: fridge 5: wait until youve a full load 6: a complete meal Donts 7: iron everythin

7、g 8: the iron up 9: the kettle 10: to the brim 11: hot foodUnit 2Part I Getting readyA.B. Keys: 1: International Union for the Conservation of Nature, United Nations, wildlife, policies 2: Convention on International Trade in Endangered Species, trade, animals and plants, 1975, prohibits, 8000, cont

8、rols, 30000 3: United Nations Environmental Program, leadership, environment, quality of life 4: World Wide Fund for Nature(formerly World Wildlife Fund) , 1961, Sahara Desert, North America & most of Europe, top soil blowing awayC. Keys: 1: 2 2: 4 3: 5 4: 1,6 5: 3Questions: 1: They work to conserve

9、 natural areas that contain endangered wildlife 2: They are campaigning to provide sea sanctuaries for some of these endangered species.Protected-nesting sites for turtles have been set up 3: It refers to the places of safety in the sea where sea animals are protected and allowed to live freelyPart

10、II Christmas bird countsA. Keys: 1: Jan. 3rd 2: more than 40 000 volunteers 3: 1 600 4: a 15 mile diameter 5: an American artist 6: their natural habitats 7: the late 1800sB. Keys: 1: start 2: sponsored 3: outside counting birds 4: experienced bird watchers 5: anyone that is interested or concerned

11、6: scheduled 7: 10 people taking part 8: 15 mile diameter circle 9: the total bird populations 10: the number of birds 11: the longest-running bird census 12: undefinedPart III Dolphin captivityA.B. Keys: 1: 1 2: 3 3: 4 4: 5 5: 2 6: Dolphins should be kept in captivity. 7: There are educational bene

12、fits of keeping marine mammals in captivity.C. Keys: 1: stress (family-oriented) 2: sonar bouncing off 3: average age of death; life getting better for captive dolphins 4: natural behabior patterns-altered 5: suffering from fractured skulls, ribs or jaws 6: cant learn from animals in the wild how th

13、ey operate, breed, what they need, etc.Part IV More about the topic: Birds-A Source of WealthKeys: 1： 9300 2： Habitat 3： warmer climates 4： 300 different species 5： colder climates 6： habitat alteration 7： esthetic value 8： Birds populationPart V Do you know?Keys: 1: one and one-half million 2: 20 t

14、imes 3: 100 4: 40000 5: 65 million 6: 3500 7: 2 million square miles 8: 3% 9: 200 animal species 10: 1000 11: a third 12: two-thirds 13: three-quartersUnit 3 El Nino? La Nina?Part ID. warmer/ green house effect / sea levels/ climate zonesAs 1998 ends and people look forward to the last year of the c

15、entury, the World Almanac spoke with experts about what comes next. Almanac editorial director says the experts believe the next century will bring lots of changes. Warm, of course, that our climate is going to continue getting warmer. Thats the subject, by the way, of another new article on the 199

16、9 World Almanac. The greenhouse effect, exactly what causes it, and what steps to be taken to, perhaps to alleviate global warmings. Ive seen recently that 1998 is going to go down as the warmest year ever on record. And so thats going to be a major issue of the next century, and possible tremendous

17、 consequences of the global warmings, whether it is rising sea levels affecting the coastal areas; changes in climate zones affecting what crops can be grown, and in what regions. This is potentially a very significant trend to be watched. E. Cyclone: North or south of equator / Typhoon:/ Hurricane:

18、 Eastern PacificMajor ocean storms in the northern part of the world usually develop in late summer or autumn over waters near the equator. They are known by several different names. Scientists call these storms cyclones when they happen just north or south of the equator in the Indian Ocean. In the

19、 western Pacific Ocean or the China Sea, these storms are called typhoons. In the eastern Pacific and Atlantic Ocean, they are called hurricanes. Part IIA. Outline 1. A. weather pattern/ global climateB. 1. twice a decade 2. 12-18 months C. 1. warmer weather/ 2. wetter than usual/ drier D. the decli

20、ne of winds II. 1. droughtsB. a cyclic weather pattern/ about twice a decade/ wetter/ drier/ cold water away from South Americas west/ to expand eastward toward the Americas / move eastward too/ the weather around the world/ droughts/ rains and flooding/ on the South American fishing industry/ to be

21、come depletive/ the strength of it/ Part III Lick ObservatoryB. location: an hours drive/ summit/ Origin of the name: a wealthy businessman Size: one meter diameter/ second Time: 1888 Present function: research/ an educational toolC. way of observation: human eyes; in the cold/ TV screen Gains and l

22、osses: Romance/ the sky/ efficiency/ reality/ universeQuestions: 1. Because lick Observatory is near “Silicon Valley”, a region of the states high-technology.2. Because Lick Observatory was built on his estate and he was buried at the base of the telescope at this won request. 3. By using the 19th c

23、entury telescope, you have a feeling of romance with direct viewing with the human eyes. By sing the modern devices, you lose that romance but gain the efficiency. Thats an exchange. Part IV. The national climatic Data Center. A. OutlineI. A. 1951 B. headquarters C. satellites, radar, solar radiatio

24、n system, airplanes, shipsII. B. collecting weather records from around the world D. publications about earth environment. E. requests fro information from all over the world. B. questions. 1. The Department of Defense, the National Weather Service, the coastguard2. The office has written weather ob

25、servations made by early American diplomat Benjamin Franklin and by the third President of the U.S.3. You can get the information by computer, microfilm and telephone4. American cities. Another publication has monthly reports from 1500 observation stations around the world. 5.The center had more tha

26、n 900,000 requests from government officials, business owners, Unit 4 Reports on Disasters & AccidentsPart I. 1. firebomb/ shopping/ several / 2. 1,000 tornadoes3. car ferry/ taken over/ Green Action Front4. South Korea/ 270/ thousands5. robbed/ 5/ lunchtime/ 10,0006. hurricane/ 100/ twenty/ 1007. H

27、ijacked/ TuesdayPart II. Hurricanes & tornadoesA. 1. a storm 2. about 2000 3. the winds were up to 75 miles an hour 4. the Indian army 5. destroyed/ links / collapsed 6. more than 40 people 7. over 100,000 peopleLarge numbers of villages have been completely cut off. The official said the death toll

28、 could reach 2000. the Indian army has been called into help the relief effort. From Deli. Here is David Willis. The storm with winds of up to 75 miles an hour struck Indias southeast coast, flattening homes, destroying crops and cutting transport links. Eyewitnesses reported tidal waves more than 1

29、2 feet high. The storm was followed by torrential rains, which swept away roads and railway lines, and flooded low lying areas. More than 40 people are thought to have died when a ferry sank. But most of the deaths have been due to flooding, houses collapsing or electrocutions. More than 100,000 peo

30、ple have been evacuated from their homes and are taking shelter in relief camps. After surveying the flooded area by helicopter, the chief minister said it resembled a burial ground. Hes appealed to the federal government to treat the incident as a national calamity. David Willis. B. 1. The worst of

31、 the heavy rains and thunderstorms appears to be over2. in parts of Europe3. During the past week4. Affected5. At least five6. because emergency warnings were issued before. C. 1. c 2 b 3. d 4. bNine hours Greenwich Mean Time. The news read by Wendy Gordon. The worst of the heavy rains and thunderst

32、orms that have been sweeping parts of Europe during the past week appears to be over. Exceptionally heavy rainfall brought flooding to many parts of Germany, Switzerland, Northern Italy and France and chaos to rail and road transport. Although most flights are expected to be back to normal by this time tomorrow, there are expected to b