新视野大学英语第三版第四册第七单元SectionA课件

1、FOREIGH LANGUAGE TEACHING AND RESEARCH PRESS AIR FORCE ENGINEERING UNIVERTISY,1,PPT学习交流,Energy and Food Crises,We can create a more sustainable, cleaner and safer world by making wiser energy choices. Robert Alan Silverstein (American author, artist, social activist),When written in Chinese, the wor

2、d “crisis” is composed of two characters. One represents danger and the other represents opportunity. John F. Kennedy (35th US president),2,PPT学习交流,Section A,4,The coming energy crisis,Energy and Food Crises,Objectives,3,PPT学习交流,4,PPT学习交流,A,Section,The coming energy crises,5,PPT学习交流,1. What form of

3、energy do these facilities belong to?,6,PPT学习交流,7,PPT学习交流,2. What are the advantages of renewable energy?,sustainable, will never run out minimal impact on the environment economic benefits stabilize energy prices ,8,PPT学习交流,1. How energy-conscious are you?,With constant warnings about climate chang

4、e and the depletion of natural resources, many people become aware that they need to live a green lifestyle. What about you? Have you adopted an eco-friendly lifestyle, or are you just paying lip service to the idea? Complete the following questionnaire and find out how energy-conscious you are.,9,P

5、PT学习交流,10,PPT学习交流,11,PPT学习交流,12,PPT学习交流,Now add up your score:, 2 points for each “Always” answer; 1 point for each “Sometimes” answer; 0 point for each “Never” answer. What is your total score? Listen to the teacher to see how energy-conscious you are.,13,PPT学习交流,Interpretation of your energy consc

6、iousness scores:, Less than 6 points You may have heard about energy conservation, but you are not giving it the priority it deserves. You must do better. Between 6-10 points You are already doing a few basic things, but there is so much more that you could do to show a better awareness for energy c

7、onservation.,14,PPT学习交流,Interpretation of your energy consciousness scores:, Between 11-16 points You display a good awareness of energy saving, but theres still room for improvement. Between 17- 20 points You can rightly call yourself an “Energy Saving Champion”well done and keep up the good work!,

8、15,PPT学习交流,1 Is it important to conserve energy? Why do you think so? 2 Besides the ideas listed in the above questionnaire, what else do you think we can do to help conserve energy?,2. Work in pairs and discuss the following questions.,Discussion Questions,Tips,Tips,16,PPT学习交流,1 Is it important to

9、conserve energy? Why do you think so?,Yes, its definitely important to conserve energy. There are several reasons. First, it reduces our consumption of fossil fuels which have a fixed quantity of availability and are rapidly diminishing. Second, it saves us money because we dont have to build more p

10、ower plants. Third, it reduces carbon emission, which will contribute greatly to the improvement of our air quality and natural environment.,Discussion Questions,17,PPT学习交流,2 Besides the ideas listed in the above questionnaire, what else do you think we can do to help conserve energy?,There are many

11、 other things we can do to save energy, such as: Not to overheat or overcool our rooms. Reduce the amount of waste we produce by buying minimally packaged goods. Choose reusable products over disposable ones, and recycle.,To be continued,Discussion Questions,18,PPT学习交流, Plan carefully and cluster ou

12、r errands and shopping to minimize the miles we drive. Use less hot water by installing low-flow shower heads. Install a solar water heater for our home. Drive a pure electric car (with a back-up generator for out-of-range driving). Walk or ride a bicycle whenever we can.,Discussion Questions,2 Besi

13、des the ideas listed in the above questionnaire, what else do you think we can do to help conserve energy?,19,PPT学习交流,summit,circumstances,20,PPT学习交流,diversity,supply routes,21,PPT学习交流,Listen to a short passage concerning money markets and fill in the missing information.,We must overcome _ hurdles

14、(障碍) to complete projects like the Southern Gas Corridor, which will bring gas from the Caspian and _ the eastern Mediterranean to European markets in less than five years. There has been some progress on the part of Europe in its crisis contingency (应急) planning following energy crises in 06, 09, a

15、nd in 2014.,To be continued,potentially,remaining,22,PPT学习交流,Additional pipelines have been _, reverse flows of energy have been made possible and greater energy interconnectedness (互联性) has been _ by the Baltic and Scandinavian countries for example. But more needs to be done, including integrating

16、 _ into the fuel mix. It is also critical to develop new opportunities to bring new sources of supply to Europe.,constructed,pursued,renewable energy,Listen to a short passage concerning money markets and fill in the missing information.,To be continued,23,PPT学习交流,Listen to a short passage concernin

17、g money markets and fill in the missing information.,The Southern Corridor pipeline is a case _. With U.S. support, Turkish and Azeri leadership, this project traversing (穿越) Azerbaijan, through Georgia, Turkey, Greece, Albania, and Italy will bring gas for the first time from the Caspian Sea (里海) t

18、o Europe.,in point,24,PPT学习交流,Culture Notes,Questions Previewing,1. What is “Industrial Age”?,2. What is “Chernobyl reactor meltdown”?,Tips,Tips,3. What is “Fukushima explosion”?,Tips,4. What is “Union of Concerned Scientists (UCS)”?,Tips,25,PPT学习交流,1. What is “Industrial Age”?,Background Informatio

19、n,the Industrial Age: the period from around 1760 to 1840, when the Industrial Revolution changed the world from a mainly agricultural one to one in which industry and manufacturing was in control. The Industrial Revolution began in Great Britain and within a few decades spread to Western Europe and

20、 the United States.,Culture Notes,26,PPT学习交流,the Chernobyl reactor meltdown: also called the Chernobyl disaster. It is a catastrophic nuclear accident that occurred on April 26, 1986, at the Chernobyl Nuclear Power Plant in the former Soviet Union. So far, it has been widely considered as the worst

21、nuclear power plant accident in history.,2. What is “Chernobyl reactor meltdown”?,Culture Notes,27,PPT学习交流,the Fukushima explosion: also called the Fukushima Daiichi nuclear disaster, which happened in Japan after the Tohoku magnitude 9.0 earthquake and subsequent tsunami on March 11, 2011. It is a

22、series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima Daiichi Nuclear Power Plant.,3. What is “Fukushima explosion”?,Background Information,Culture Notes,28,PPT学习交流,the Union of Concerned Scientists (UCS): a nonprofit science advocacy group based in

23、the United States. It was founded in 1969 by faculty members and students of the Massachusetts Institute of Technology located in Cambridge, Massachusetts.,4. What is “Union of Concerned Scientists (UCS)”?,Culture Notes,29,PPT学习交流,30,PPT学习交流,Text A is a piece of cause-and-effect writing featuring ca

24、uses. By stating the various problems associated with fossil fuels and nuclear power, as well as with different types of renewable energy alternatives, the author aims to justify his view that a severe energy crisis is coming, and that effective solutions to the problem will not come from any single

25、 energy technology but from a body of diverse energy technologies. The text can be divided into three parts.,Main Idea of the Text,31,PPT学习交流,Part I (Paras. 1_),3,Beginning with a mention of the Industrial Revolution, this part briefly lists the problems associated with fossil fuels and nuclear ener

26、gy, and leads us to the main topic and thesis of the essay: The eventual depletion of fossil fuels that hitherto proved so reliable has left us with no choice but to prepare for a new age of energy synthesis.,Introduction,32,PPT学习交流,What energy sources have the industrialized countries depended on f

27、or their industrial development in the past? (Para. 1),Industrialized countries have been relying on fossil fuels like _ and _ _ as well as uranium-based _ _ to meet their ever-increasing energy demands.,oil,natural,gas,nuclear,power,33,PPT学习交流,nuclear power is not really cheap when all costs are co

28、nsidered; disastrous nuclear accidents could happen; nuclear waste can be used improperly to cause damage.,There is a dark side to the dependence on fossil fuels and nuclear power for our energy needs. (Para. 2),fossil fuels:,nuclear power:,1) their supply is limited; 2) they cause health and enviro

29、nmental problems.,34,PPT学习交流,What is the thesis statement? (Para. 3),depletion,energy synthesis,35,PPT学习交流,Part I (Paras. 4 _),8,This part focuses on various types of renewable energy alternatives and their problems. It can be seen as providing reasons to explain why energy crisis is still likely to

30、 come despite all these energy alternatives.,Body,36,PPT学习交流,Body,Renewable energy alternatives still have various obstacles to overcome though they look promising. (Para. 4),37,PPT学习交流,What point does the author want to illustrate by telling us the advantages and disadvantages of different renewabl

31、e energy sources？(Paras. 4-8),Body,promising,efficiently,lower,38,PPT学习交流,Part III (Para. 9),Summary and call to action: 1) An energy crisis is approaching. 2) We must act quickly and work together to find the most effective solutions.,Conclusion,39,PPT学习交流,Introduction (Paras. 13): Problems with fo

32、ssil fuels and nuclear power, with the thesis statement provided.,Industrialized countries have been depending on fossil fuels like oil and natural gas as well as uranium-based nuclear power to meet their ever-increasing energy needs. (Para. 1),There are problems with fossil fuels and nuclear power.

33、 The time when there is sufficient supply of cheap energy will soon be over. (Para. 2),The eventual depletion of fossil fuels that hitherto proved reliable has left us with no choice but to prepare for a new age of energy synthesis.(Para. 3),40,PPT学习交流,Body (Paras. 48): Renewable energy alternatives

34、 and their problems.,General statement: Renewable energy alternatives still face various problems though they look promising. (Para. 4),Solar energy is unlimited, but is very expensive to use.(Para. 5),Wind energy is enormous, but is unreliable and expensive to produce.(Para. 6),Hydroelectric power

35、is clean, but is environmentally unfriendly.(Para. 7),Biomass energy is abundant, but is air-polluting and costly. (Para. 8),41,PPT学习交流,1) An energy crisis is approaching. 2) We must act quickly and work together to find the most effective solutions.,Conclusion (Para. 9): Summary and call to action.

36、,42,PPT学习交流,Energy and Food Crises The industrialized countries have been depending on _ like oil and natural gas as well as uranium-based _ to meet their ever-increasing energy needs. However, there are many problems with them. Besides, the _ when there is sufficient supply of cheap energy may soon

37、 be over. The eventual _ of fossil fuels,fossil fuels,nuclear power,honeymoon,To be continued,depletion,43,PPT学习交流,that hitherto proved reliable has left us with _ but to prepare for a new age of energy _. Renewable energy alternatives still face various problems though they look _. Solar energy is

38、unlimited, but is very _ to use. Wind energy is enormous, but is _ and expensive to produce.,To be continued,no choice,synthesis,promising,expensive,unreliable,44,PPT学习交流,Hydroelectric power is clean, but is environmentally _. Biomass energy is abundant, but is _ and costly. To sum up, an severe _ i

39、s approaching. We must act quickly and _ to find the most effective solutions.,air-polluting,energy crisis,work together,unfriendly,45,PPT学习交流,46,PPT学习交流,把计入,(factor in sth.),Dont forget to factor in the cost of maintenance and repairs for the vehicle.,factor sth. in / factor in sth.,短语逆译,短语应用,不要忘了计

40、入车辆的保养和维修费用。,意群提示,47,PPT学习交流,预计要,(be projected to do sth.),By 2030 the worlds demand for energy is projected to more than double.,be projected to do sth.,短语逆译,短语应用,到2030年，世界对能源的需求预计要增加一倍多。,意群提示,48,PPT学习交流,1. 清理；收拾 2. 解释；解决；解答,(clear up/ areas of confusion),1. I must clear up my room before my mother

41、 returns. 2. Teachers should be willing to spend time clearing up students areas of confusion.,clear up,短语逆译,短语应用,1.妈妈回来之前我必须收拾好房间。 2.老师应该乐意花时间解答学生的疑难点。,意群提示,To be continued,49,PPT学习交流,（天气）好转，转晴,(clear up/ furiously),The weather forecast had said that it would clear up late in the evening, but it ra

42、ined furiously all night long.,clear up,短语逆译,短语应用,天气预报说夜间天气会转好，结果却下了一整夜大雨。,意群提示,50,PPT学习交流,源自；源于；从中取得,(be derived from),Part of my happiness is derived from my ability to help others.,短语逆译,短语应用,我的幸福感部分源自于我能够帮助他人。,意群提示,be derived from,51,PPT学习交流,依而定; 取决于,(hinge on/ council),The fate of the project hi

43、nges on the decision of the council.,短语逆译,短语应用,这项工程的命运取决于委员会的决定。,意群提示,hinge on / upon sth.,52,PPT学习交流,即将来临,(be upon sb.),Autumn is upon us. The tree leaves are turning gold.,短语逆译,短语应用,秋天就要来了。树叶正变成金黄色。,意群提示,be upon sb.,53,PPT学习交流,54,PPT学习交流,但是，对煤炭、石油、天然气这些不可再生的矿物燃料及有争议的铀进行近乎垄断地使用以满足我们日益增长的对能源的需求的做法有其

44、危险的一面。,原句译文,逆译练习,But there is a dark side to the near monopoly of non-renewable fossil fuels like coal, oil and natural gas, along with controversial uranium, to supply our growing energy demands.(Para. 2),句型提炼,55,PPT学习交流,There is a dark side to (doing) sth. ,句型提炼,应用提示,用于表达“（做）具有危险的一面”。,句型应用,56,PPT学

45、习交流,(get addicted to/ ruin ones life ),典型例句,电视是通往世界的窗口，但也有其危险的一面。大人和孩子都可能看电视上瘾，以致毁掉自己的生活。,意群提示,Television is a window to the world, but there is a dark side to it as well. Both adults and young people can get addicted to it and ruin their lives.,57,PPT学习交流,如果把所有代价都考虑进来的话，曾经被称颂为“便宜到无法计量”的核能从经济效益上来说则从

46、未获得过成功。,原句译文,逆译练习,Nuclear energy, once hailed as “too cheap to meter”, has never been economically successful when all costs are factored in. (Para. 2),句型提炼,58,PPT学习交流,Sth./sb., once/consistently hailed/applaused as “”, has been/turned out ,句型提炼,应用提示,用于对比宣传与事实,说明“某人/某事名不副实”。,句型应用,59,PPT学习交流,(box-off

47、icemarvel),典型例句,曾经被称颂将会成为“票房神话”的那位知名导演的最新影片，结果却让他的影迷们大失所望。,意群提示,The latestmovie of that famous director, once hailed as “a would-bebox-officemarvel”, has turned out a great disappointment to his fans.,60,PPT学习交流,迄今为止一直被证明是稳定可靠的矿物燃料终将消失，这让我们别无选择，只能作好准备，迎接新的能源综合利用时代的到来。,原句译文,逆译练习,The eventual depletio

48、n of fossil fuels that hitherto proved so reliable has left us with no choice but to prepare for a new age of energy synthesis. (Para. 3),句型提炼,61,PPT学习交流, has left us with no choice but to do ,句型提炼,应用提示,用于表达 “使某人别无选择，只好”。,句型应用,62,PPT学习交流,(at an earlier age),典型例句,他的病使他别无选择，只好提前退休。,意群提示,His illness le

49、ft him with no choice but to retire at an earlier age.,63,PPT学习交流,64,PPT学习交流,65,PPT学习交流,66,PPT学习交流,67,PPT学习交流,Do you think the world will experience an energy crisis in the near future? Why or why not? What problems may occur if there is an energy crisis? World oil prices are changing all the time.

50、What do you think are the key factors that cause the changes of oil prices? Should nuclear energy be banned? Why or why not? Do you agree China is facing a serious energy problem? Why or why not?,Tips,Tips,Tips,Tips,Tips,68,PPT学习交流,Yes. Because: - Non-renewable fossil fuels are being used up. - Nucl

51、ear energy is not safe. Renewable energy alternatives are still too expensive, and cant be used on a large scale. - Population is increasing fast. - Developing countries demand more energy than before because of their economic development.,to be continued,1. Do you think the world will experience an

52、 energy crisis in the near future? Why or why not?,69,PPT学习交流,No. Because: - There is still abundant oil and natural gas in the ground. There are more known reserves now than there have ever been. - Conservation will play a role. Energy efficient products and buildings are becoming more and more com

53、mon. New energy technologies are being developed and perfected.,1. Do you think the world will experience an energy crisis in the near future? Why or why not?,70,PPT学习交流,A lot of problems may occur if there is an energy crisis, such as: disruption of energy supplies; rapidly increasing energy prices

54、; declining economic growth; increasing inflation; rising unemployment.,2. What problems may occur if there is an energy crisis?,71,PPT学习交流,The key factors that cause the changes of oil prices usually include: changes in oil supply and demand; oil speculation activities; world conflicts; natural dis

55、asters; monopoly of the oil-producing nations.,3. World oil prices are changing all the time? What do you think are the key factors that cause the changes of oil prices?,72,PPT学习交流,Yes, nuclear energy should be banned because: - Radioactive waste is harmful to peoples health. - Disastrous nuclear ac

56、cidents may happen. - There is the danger of nuclear proliferation. Exploitation of non-renewable uranium will continue, which will result in the exhaustion of another natural resource.,4. Should nuclear energy be banned? Why or why not?,to be continued,73,PPT学习交流,No, nuclear energy shouldnt be bann

57、ed because: Nuclear energy causes no release of greenhouse gases. - Nuclear energy has low operating costs. Nuclear energy can be an extremely reliable source of power if managed well.,4. Should nuclear energy be banned? Why or why not?,74,PPT学习交流,Yes, I agree that China is having a serious energy p

58、roblem. With Chinas rapid economic growth and continuously expanding urban population, the demand for energy is increasing tremendously. The present energy supply can hardly meet the demand from both industry and households, especially in summer months. More electricity has yet to be produced.,5. Do

59、 you agree China is facing a serious energy problem? Why or why not?,to be continued,75,PPT学习交流,No, I dont agree that China is facing a serious energy problem. China is a large country with rich natural resources. Though traditional fossil fuels are reported to be running out, there is no hard evidence showing they really are becau