新视野视听说第三册Unit 2Our Globe is in Danger

1、 Watch a video clip. Work in groups to discuss the following questions. 1. What do you think may account for the natural disaster in the video clip? 2. What do you think might be the causes of what was happening in the video clip? Work in pairs and identify the extreme weather associated with the fo

2、llowing pictures. Then share what you know about the Extreme Weather with your partner. lightening and thunderstorms hail tornadoes flash floodshurricaneswinter storms Work in groups to discuss the following questions. 1. Have you witnessed any changes of the environment in your hometown? 2. What do

3、 you think is the relationship between the climate and environment? 3. Do you know some other climate disasters caused by the pollution of environment? microscope n. 显微镜(an optical instrument that produces magnified images of small objects) El Nio 厄尔尼诺现象 drought n. 干旱(a long period of dry weather wh

4、en there is little or no rain) e.g. Fresh vegetables were scarce during the drought. greenhouse effect 温室效应(the gradual warming of the air surrounding the Earth as a result of heat being trapped by pollution) e.g. Carbon dioxide emission contributes to greenhouse effect. Basic Listening Practice har

5、ness v. 利用（或控制）以产生能量等(control and use the natural force or power of something) e.g. The problem was how to harness these forces. hazard n. 危险(danger; risk) e.g. He had put his own life in hazard. CFC 含氟氯烃(a gas used in fridges and aerosol cans, harmful to the ozone layer) aerosol n. 喷雾器(a container

6、in which liquids are kept under pressure and forced out in spray) Basic Listening Practice Questions and key 1. Q: Which of the following is true according to the dialog? B) Even scientists cannot understand El Nio. 2. Q: How do the man and the woman view the environment? D) Both the man and the wom

7、an think positively about it. 3. Q: What have the Chinese people been encouraged to do? A) To grow trees. 4. Q: What are government organizations helping people to do? A) To treat old electrical appliances safely. 5. Q: What does the man mean? C) The woman should not use an aerosol spray. Basic List

8、ening Practice We should have proper respect for nature! Martha 玛莎人名 Ed 艾德人名 litter v. 乱扔垃圾(leave rubbish in public places) e.g. Dont litter the paper over the floor. trash n. 垃圾(something worth little or nothing) e.g. Please take out the trash. Listening in While being interviewed by Martha, Ed sai

9、d more people in his culture respect (1)_ now than ever before. When asked about the most serious (2)_ in the world today, he mentioned the damaged ozone layer and the (3)_ in big cities. Ed learned about environmental problems at school. A lot of clubs and some TV programs (4)_ environmental safety

10、. He believes that students should learn more about the environment at school. Then they can be more (5)_ all the problems and prevent more problems (6)_. When asked about a new (7)_ he would like to create to help the environment, he said that when people (8)_ their cigarette butts, they have to th

11、row them into the garbage bin. They should be (9)_ if they throw them on the floor or ground. Personally, Ed is so against littering that he never litters. He always throws his (10)_ into the garbage bin. Key nature environmental problem pollution promote aware of from occurring law throw away fined

12、 trash Listening in River Pollution discolor v. 使变色(cause something to change color) e.g. This material may discolor if exposed to direct sunlight. smelly adj. 臭的(having a bad smell; stinking) e.g. The toilets in that restaurant were horribly smelly and dirty. fertilizer n. 肥料(a substance that is pu

13、t on the soil to make crops grow) e.g. Get some more fertilizer for the garden. drain v. 排水(flow away) e.g. They are digging trenches to drain the water away. Listening in River Pollution concentration n. 浓度; 含量(the amount of a substance in a liquid) e.g. Although all plants normally contain fluorin

14、e, the concentration varies greatly. nitrate n. 硝酸盐; 硝酸盐类化肥 phosphate n. 磷酸盐; 磷肥 algae n.（复数）水藻 bacteria n.（复数）细菌(germs) pollutant n. 污染物(a polluting substance) cyanide n. 氰化物 lead n. 铅 Listening in River Pollution mercury n. 汞, 水银 toxic adj. 有毒的(poisonous) e.g. The factory had accidentally released

15、 a quantity of toxic waste into the sea. film n. 薄膜; 薄薄一层(a thin layer) e.g. This film of water is about five miles thick at its deepest part. dissolve v. 溶解(mix with a liquid and become part of it) e.g. Both salt and sugar dissolve easily in water. Listening in Questions and key 1. Q: What is the p

16、assage mainly about? D) The causes of river pollution. 2. Q: Why does the river water turn green? A) Because nitrate and phosphate in the water increase. 3. Q: What harm does industrial waste cause? B) Poisoning. 4. Q: Which of the following is true of oil pollution? C) It prevents oxygen from enter

17、ing the water. 5. Q: What harm can warm water in a river bring? D) Lack of oxygen. Listening in Pollutions When households and factories dump sewerage and harmful substances into rivers and lakes, water pollution can be serious. Air pollution may worsen as the economy develops. If the smoke from the

18、 factory chimneys does not meet environmental standards, it pollutes the air. Also, the increasing number of cars brings further deterioration to the quality of the air. The cigarettes people smoke also contribute to the pollution. Listening in carbon dioxide n. 二氧化碳 per unit of GDP 单位GDP(per unit o

19、f gross domestic product) the National Energy Administration 国家能源局 harmonious adj. 和谐的(with each part fitting well with other parts) e.g. There is nothing more harmonious, more symmetrical, than this group of structures. priority n. 优先权; 重点(the right to be given attention first) e.g. There are great

20、 dangers in giving absolute priority to any department. low-carbon adj. 低碳的 e.g. But our options for low- carbon energy sources are limited. hydroelectric adj. 水力发电的(producing electricity by waterpower) e.g. Plans are being drawn up to build a hydroelectric station here. Curbing carbon emissions Lis

21、tening in capacity n. 生产量(the amount of something that a factory, company, machine, etc. can produce or deal with) e.g. Is this manufacturing cost based on production figures at full capacity? kilowatt n. 千瓦（功率单位） non-fossil adj. 非化石的 shutdown v. 关闭(closedown) e.g. The best radio channel in town is

22、indirectly forced to shutdown. curb v. 抑制(control or limit something in order to prevent it from having a harmful effect) e.g. Democratic election and public opinion supervision help curb corruption. Curbing carbon emissions 1. Q: What is the passage mainly about? D) Cutting the carbon dioxide emiss

23、ions: Chinas achievements and problems. 2. Q: From four years ago until August this year, how many kilowatts of coal- fired plant capacity will have been closed? D) More than 70 million. 3. Q: By 2020, what will be the proportion of non-fossil energy in the total power in China? A) 15%. 4. Q: Which

24、of the following is true of the investment by China and the United States in clean energy last year? B) Chinas investment was almost twice as large as the United States. 5. Q: Which of the following is NOT mentioned in the passage as a problem arising from curbing greenhouse gas emissions? C) Causin

25、g more strikes. Questions and key Listening in Environment calendar February 2 World Wetland Day世界湿地日 March 21World Forestry Day世界森林日 March 22World Water Day世界水日 March 23World Meteorological Day世界气象日 April 7World Health Day世界健康日 April 18World Heritage Day世界遗产日 April 22Earth Day地球日 May 31Anti Tobacco

26、 Day禁烟日 (To be continued) Listening in Environment calendar June 5World Environment Day世界环境日 July 11World Population Day世界人口日 September 16World Ozone Day世界臭氧日 September 28Green Consumer Day绿色消费者日 October 3World Habitat Day世界居住日 October 1-7World Wildlife Week世界野生动植物周 October 4World Animal Welfare Day

27、世界动物福利日 October 13 International Day for Natural Disaster Reduction 国际减少自然灾害 日 (Continued) Listening in Our globe is in danger. humid adj. 潮湿的(moist; damp) e.g. In the east, the air is humid in summer. panel n. 板(a flat rectangular piece of glass, wood, metal, etc.) trap v. 挡住(prevent something such

28、 as gas or water from getting away) e.g. This is called the greenhouse effect, and the gases that trap the heat are greenhouse gases. carbon monoxide n. 一氧化碳 Speaking Out Script John: How is your grandma (1)_ _? Nora: Over the last few years, granny has been complaining that (2)_ _. She believes the

29、 weather has changed. John: What she means is the climates long-term conditions. Weather refers only to day-to-day conditions. Nora: Yeah. She says summer is hotter, and winter wetter. But I tried to comfort her, saying, “Its all in your mind, granny.” John: Shes right, you know. The greenhouse effe

30、ct (3)_. (To be continued) getting along during this unusually hot weather the hot, humid weather is killing her does bring global warming and rain Speaking Out Script (Continued) Nora: How can I explain global warming and greenhouse gases to a 97-year-old granny? John: Tell her the Earth now is lik

31、e a real greenhouse made of glass panels that let in light and trap heat. Nora: Think shell want to know that carbon monoxide from Earth makes greenhouse gases? John: (4)_ _. Nora: Ill tell granny (5)_ _, or to use aerosol spray on her hair. John: OK. Joke about it, but it wont be so funny when (6)_

32、. Everybody should know what causes global warming. Otherwise we wont stop it not to burn any more wood or coal the polar ice caps melt and oceans rise Speaking Out Global warming Global warming is the increase in the average temperature of the Earths near-surface air and oceans in recent decades an

33、d its projected continuation. The term “global warming” is a specific example of the broader term “climate change”, which can also refer to global cooling. In common usage the term refers to recent warming and implies a human influence. Speaking Out Rainforests will soon be only a memory. donation n

34、. 捐赠(something given to a person or an organization in order to help them) e.g. Ill be sending them a donation in appreciation of their help. dense adj. 稠密的; 浓密的(with a lot of things that are closely together) e.g. The city has a dense manufacturing population. vegetation n. 植物(plants of an area or

35、a region) e.g. The sparse vegetation will only feed a small population of animals. Alaska 阿拉斯加州（美国州名） logger n. 伐木者(a person who cuts trees) Speaking Out Susan: Hey, Chris. There is an environmental group on campus (1)_. Chris: So what? Susan: So what?! Dont you want to save the rainforests? Chris:

36、But therere no rainforests in our country. (2)_ _. Susan: Come on. A rainforest is any forest where (3)_ _. Tropical rainforests can be found in hot, tropical areas, but there are also cool rainforests, including one in southeast Alaska. Chris: How did you know that? Script (To be continued) asking

37、for donations to save the rainforests They need hot, tropical climates heavy rainfall leads to dense vegetation Speaking Out (Continued) Susan: Well, Ive just read a book on rainforests. You know, 140 million people live in the worlds rainforests, and 35 percent of the worlds (4)_ _. Chris: Wow! Im

38、impressed. So what else have you learned? Susan: Most of the worlds rainforests (5)_ _ loggers, farmers and developers. They are disappearing at a rate of 100 acres a minute! Chris: Its terrible! Susan: Yeah. Weve got to (6)_. Now, would you like to give a donation? Chris: Sure. Script plant and ani

39、mal species exist only in rainforests are in danger of destruction by find a way to save them Speaking Out Rainforests Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750-2000 mm (68-78 inches). The monsoon trough, alternatively

40、known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earths tropical rainforests. Around 40% to 75% of all biotic species are indigenous to the rainforests. It has been estimated that there may be many millions of species of plan

41、ts, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the “jewels of the Earth” and the “worlds largest pharmacy”, because over one quarter of natural medicines have been discovered there. Rainforests are also responsible for 28% of the worl

42、ds oxygen turnover, sometimes misnamed oxygen production, processing it through photosynthesis from carbon dioxide and consuming it through respiration. Speaking Out What a terrible sandstorm! Mongolia n. 蒙古国 airborne adj. 空中传播的(carried through the air) e.g. Also, it helps to prevent dust and other

43、airborne contaminates from flowing into the room. afforestation n. 植树造林(the act of planting trees in order to make a forest) e.g. We have decided to transform the mountains by afforestation. Speaking Out Susan: Hey, John. Youre back. A few days ago, (1)_ _. John: Oh, thats bad. Susan: (2)_. I had to

44、 wear a scarf around my head. John: The dust, as I know, comes from Mongolia. And from my reading in science, Ive heard the dust often (3)_ _. Susan: This is a serious problem in many parts of the world, and unfortunately our city is one of them. Script (To be continued) a big sandstorm hit our city

45、 The air was full of dirt and sand and dust comes after a long period of drought Speaking Out (Continued) John: And if the drought continues, the soil is easily airborne. And then if the wind comes, (4)_ on the cold air that rises up, and it can travel very long distances. Susan: Normally, when ther

46、es a wind, it can clear the air, and you have beautiful weather. But when the dust is brought in with the wind, then you cant breathe, you cant see well, and its dangerous for driving, or for walking. Script (To be continued) the soil can be lifted up Speaking Out (Continued) John: Yeah. You know, w

47、hen the dust is lifted up, it can go as high as 3,000 meters. And its not just China that has problems, but many other countries. For example, the middle of Australia sometimes has dust storms, and some of the dust goes up very high, goes across the ocean, and falls down on New Zealand. Susan: Not a

48、 very nice neighbor. John: Is there a solution to the problem? Susan: We need to (5)_ so that the soil can stay where it is. John: No wonder the government is (6)_ _ _. Script plant more trees and grass launching a new forestation program in a bid to address the environmental problem Speaking Out Sa

49、ndstorm A dust storm or sandstorm is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Particles are transported by saltation and suspension, a process that moves soil from one plac

50、e and deposits it in another. The Sahara and dry lands around the Arabian peninsula are the main terrestrial sources of airborne dust, with some contributions from Iran, Pakistan and India into the Arabian Sea, and Chinas significant storms deposit dust in the Pacific. (To be continued) Speaking Out

51、 (Continued) It has been argued that recently, poor management of the Earths dry lands, such as neglecting the fallow system, are increasing dust storms from desert margins and changing both the local and global climate, and also impacting local economies. The term sandstorm is used most often in th

52、e context of desert sandstorms, especially in the Sahara, or places where sand is a more prevalent soil type than dirt or rock, when, in addition to fine particles obscuring visibility, a considerable amount of larger sand particles are blown closer to the surface. The term dust storm is more likely

53、 to be used when finer particles are blown long distances, especially when the dust storm affects urban areas. Speaking Out Watch a video clip. Work in groups to discuss the following questions. 1. What is the video clip about? 2. What might happen if all the ice melted? 3. What might be the causes

54、for the problem? Speaking Out inspirational adj. 有抱负的 (with aspiration or ambition) e.g. It is, in my opinion, one of the most inspirational mathematics books Ive ever read. fluffy adj. 空洞的 (empty, meaningless) e.g. There is an iron will underlying that soft and fluffy facade. emission n. 排放物 (a gas

55、 or other substance that is sent into the air) e.g. One set of provisions tightens emission standards. Lets Talk scenario n. 情景 (a situation that could possibly happen) e.g. The more likely scenario is that the president will resign and an election will be held. hollow adj. 空的 (having a hole or empt

56、y space inside) e.g. The boys scraped out a hollow place for planting trees. shell n. 壳 (the hard outer covering) channel v. 为引资; 引导 (control or direct money, energy, etc. toward a particular purpose) e.g. Channel all your efforts into this one project, and you will succeed. Lets Talk Script and key

57、 Man 1: Well, its inspirational language which is nice and lovely and fluffy, but(1)_ _, and so its really hard to take to the bank. I mean, peoples lives are on the line in the developing world where we are seeing the impacts felt first and foremost. And obviously (2)_ _ _. (3)_ _ and thats a big p

58、roblem. On-screen text: Wind Farm This is a great photo op for all the world leaders, but if (4)_ _, it really doesnt mean much at the end of the day.? (to be continued) bdoesnt really actually commit anyone to doing anything athe atmosphere simply cant take the kind of emissions weve been seeing in

59、 the business-as-usual scenario and theres no real commitment to change that hTheres no real commitment to put serious money on the table dits not backed by action Lets Talk Script and key (Continued) Man 2: Whats in there is very disappointing. (5)_ _. (6)_ that will need to be filled in, and it ha

60、s some numbers, it talks about trying to avoid two degrees. Thats the same language that the G8 used last July. But (7)_ as yet that would guarantee that were actually on the, on track to get there. And the financing commitments there is a mention of a 100- billion-dollar figure and the attempt to r