【备课参考】人教版高中英语选修6课件：Unit+4+A+Global+warming+Using+language（共80张PPT）.ppt

1、Unit 4 Global warming Using language,What cause the Global Warming?,smoke from cars,smoke from factories,目前面临的环境问题,Water pollution,Deforestation,The war,What can we do about global warming,Skim the letters and find who the writers are and what their purpose of writing the letters is.,Skimming,The fi

2、rst letter is written by a student who is asking for suggestions for his project global warming. The second letter is written by an editor of Earth Care magazine. He offers the student some suggestions on what to do about global warming.,Read the second email, and answer the question: Does Earth Car

3、e agree with Ouyang Guangs opinion that individuals can have no effect?,No, Earth Care does not agree.,List Earth Cares suggestions and then in groups, discuss whether you think you can carry out each suggestion.,Scanning,If you are not using electrical appliances, turn them off.,Yes,Save energy,Yes

4、,Save energy,Yes,Save energy,Yes,Save energy,If youre cold, put on more clothes instead of turning up the heat.,Motor vehicles use a lot of energy, so walk or ride a bike if you can.,Recycle cans, bottles, plastics and newspapers and buy things made from recycled materials.,Yes,Save energy,Yes,Plant

5、s absorb carbon dioxide from the air.,Plant more trees.,Get your parents or friends to buy products that are made to save energy.,Yes,Together, individuals can make a difference.,Talk with your family and friends about global warming and tell them what youve learned.,Read the text carefully and fill

6、 in the blanks.,What can we do about global warming? Turn a(n) _ off when youre not using it. Put on more clothes instead of turning up the _. Walk or _ instead of taking motor vehicles. _ cans, bottles, plastics and newspapers.,electrical appliance,heat,ride a bike,Recycle, Buy things made from _ _

7、. Buy products that are made to save _. _ in your garden or your school yard. Talk with your family and friends about _.,materials,energy,Plant trees,global warming,recycled,WritingMake a poster,Make a poster for your school that tells students various ways they can reduce the amount of carbon dioxi

8、de in the air.,The steps to write the poster,Underline the most important parts of earth cares suggestions. List the ways to reduce carbon dioxide in the air. Use imperative sentences (祈使句) in your poster. Give your poster a large heading. Make a slogan at the end like the one at the end of the lett

9、er from Earth Care.,Sample poster,Fight global warming Cut down on energy. Cut down on carbon dioxide. If not using an electrical item, turn it off. If you suddenly feel cold, dont turn the heat up, put on a jacket instead.,Walk or ride a bike and save fossil fuels. Recycle paper, cardboard and news

10、papers. Buy products made from recycled materials. Buy energy-saving products like low energy light bulbs. Plant trees to absorb CO2. Tell your friends about global warming. Every effort counts!,Further discussion:,From your point of view, which of the following activities will harm our earth the mo

11、st? Why? How to solve it?,A,nuclear bomb 核弹 gas bomb 毒气弹 radiation 辐射 chemical weapons 化学武器 ban the war peace,B,harmful gas acid rain 硫酸雨 reduce air pollution solar energy 太阳能 wind power hydropower 水力发电,C,CO2,floods draughts only-once chopsticks 一次性筷子 paper handkerchief 纸巾,pollute earth surface terr

12、ible smell reduce reuse recycle,D,on behalf of sb. 表示“代表某人”, 通常在 句中作状语, 如： On behalf of my colleagues and myself I, thank you. 我代表我的同事和我本人向你表示感谢。 用法归纳: on behalf of sb. as the representative of on sbs behalf 联想拓展: representative n. 代表 Mary is a workers representative on the Board. 玛丽是理事会的工人代表。,Langu

13、age Points,2. advocate 用作动词, 表示“拥护、提倡”时, 后接名词或动名词形式, 如: He advocates reforming the prison system. 他主张改良监狱制度。 用法归纳: advocate sth. 提倡, 拥护某事 advocate doing sth. 提倡, 拥护做某事 advocate that + 从句 主张, 提倡 特别提示: advocate 后接从句时, 从句谓语需用 “should do”表示虚拟, should可以省略。,3. commitment n. 表示“承诺, 保证”, 常用在 短语make a commit

14、ment to sb. / sth.中, 指“对某人/某事做出承诺” 如： Our company has a commitment to quality and customer service. 我们公司对质量和顾客服务有承诺。,联想拓展: commit v. 1) 使承担义务; 使作出保证; 使表态 He didnt commit himself to anything. 他没有作任何承诺。 2) 做 (不合法的、错的或愚蠢的事); 犯 commit murder, theft, a blunder, an unforgivable error, etc. 犯凶杀、自杀、偷窃、大错、不可

15、原谅 的错误等。 commit suicide 自杀,4. put up with 忍受; 忍耐; 受苦 That woman, as a housewife, has a lot to put up with. 作为家庭主妇, 那女人得忍受很多烦恼。 知识拓展: put aside 节省(钱、时间); 储蓄; 把放在一边 put away 收拾起来; 储存(钱); 喝掉 put back 放回原处; 拖延 put down 写下; 记下; 控制 put forward 提出(意见、建议); 推荐 put off 延期; 推迟 put on 假装; 增加; 上演(戏剧),put out 熄灭;

16、 使忧虑; 扑灭; 出版 put up 举起; 张开(伞); 张贴; 为提供食宿 5. so long as =as long as 只要, 如果 As long as there is life, there is hope. 留得生命在, 不怕没希望. 在用as /so long as连接的从句中，当其谓语为be, 而主语和主句的主语相同时, 则从句的主语和 be可以省略。如: Im sure we are safe as long as (we are) in his care. 我深信只要在他的保护下, 我们就会平安无事。,You can go out on condition tha

17、t you wear an overcoat. = You can go out _ you wear an overcoat.,as long as,只要你开心, 你做什么都没关系。,As long as you are happy, it doesnt matter what you do.,根据句意及所给单词的首字母或汉语 提示, 写出各单词的正确形式。 1. Youll need three large c_ of paint. 3. I got out of the car but left the m_ running. 4. They decided to set up a(n)

18、 _ (核的) power station. 5. Ill heat it up in the _(微波炉).,ans,otor,nuclear,microwave,II. 用所给词的适当形式填空。 1. There was _ (disagree) among doctors about the best way to treat the disease. 2. _ (pollute) from cars is the main cause of global warming.,disagreement,Pollution,III. 根据提示将下列句子补充完整。 If she could _

19、 _ (忍受那里的条件), we would take her with us. 2. I dont mind your knowing it _ (只要事情不进一步发展). 3. If you want to save energy, youd better not use the air conditioner, the heater _ (等等) when it is not necessary.,put up with the conditions there,so long as it goes no further,and so on,4. I realized that she

20、was right and it _ (有影响).,made a difference,IV. Choose the best answers.,1. -I will not come here tomorrow. - _ to me, because I dont care. A. It doesnt make any difference B. It makes much difference C. It doesnt make no difference D. It makes a difference,A,2. You can go out, _ you promise to be b

21、ack before 11 oclock. A. as far as B. so far as C. when D. as/so long as 3. She will have to find some other work for she cant _ this loud noise any more. A. come up with B. keep up with C. grow up with D. put up with,D,D,4. _the department I would like to thank you all. A. Instead of B. In spite of

22、 C. On behalf of D. Due to 5. He made a great _ to the success of the project. A. progress B. effect C. contribution D. attitude,C,C,Listening and Speaking,1 Listen to part 1 and decide which statements Professor Keeling does NOT agree with. 1. We should stop depending on fossil fuels for our energy

23、. 2. 90% of our energy comes from fossil fuels.,3. We can replace fossil fuels with cleaner sources of energy. 4. Nuclear power is a good source of energy.,2 Listen to Part 1 again and tick the energy sources that are mentioned. Complete the notes on them.,Produce carbon dioxide cheap and concentrat

24、ed form of energy,clean not very practical with present technology,does not produce carbon dioxide dangerous,clean not practical: need huge areas of land to provide enough energy,3 Listen to Part 2 and the list three things we can do to save energy.,First we must try to find ways of using fossil fue

25、ls that does not put carbon dioxide into the air. Second we must produce products that are economical with energy. Third we must ask people to cut down on the energy they use.,4 Listen to part 2 again and fill in the blanks.,LI BIN: What about _? They dont cut down on their use of _.,energy,factorie

26、s,KEELING: No, they dont. However, that is a _ we must work on as a _ community. That means _ and _countries will have to work together.,problem,global,developed,developing,LI BIN: But its not the _ countries that put most of the carbon _ into the air. The developed countries are really the ones to

27、_.,developing,dioxide,blame,FOSSIL FUELS AND OTHER FORMS OF ENERGY (L = Li Bin K = Keeling) Li Bin, a university student, is interviewing Professor Keeling on the local student radio station about the use of fossil fuels and other sources of energy.,Part 1 L: Professor Keeling, Ive read that we must

28、 stop using fossil fuels if we want to reduce the amount of carbon dioxide in the air. K: Yes, thats right, Li Bin. However its difficult.,Our modern industrial societies depend on the energy we get from fossil fuels. Its a very cheap and concentrated form of energy. L: Is it true that about 90% of

29、the worlds energy comes from fossil fuels? K: Yes, thats correct. And there is enough to last for centuries.,L: Could we replace fossil fuels with clear sources of energy like sun or wind power? K: Im afraid not. We just cant produce enough. You need huge areas of land to produce enough wind energy.

30、 The technology we have at present cannot provide enough sun energy.,L: So what about nuclear power? That doesnt produce carbon dioxidea? K: True, but its very dangerous. Remember the accident at Chernobyl. People are still dying of the radiation that was produced by THAT disaster!,Part 2 L: So what

31、 CAN we do? K: Well, there are three things. First we must find ways of using fossil fuels that wont put carbon dioxide into the air. Second, we must produce products that are economical with energy. Third, we must ask people to cut down on the energy they use.,L: But thats on a personal level. What

32、 about factories? They dont cut down cut down their use of energy. K: No, they dont. However, that is a problem we must work on as a global community. That means developed and developing countries will have to work together.,L: But its not the developing countries that put most of the carbon dioxide

33、 into the air. The developed countries are really the ones to blame. K: Thats true. So we must work together because global warming will affect everyone. If we want the future generations to have a good life, we must ALL look after the planet.,Note: The USA is the largest energy user in the world an

34、d the largest producer of the greenhouse gas carbon dioxide. China comes second in both of these.,China has been going through huge economic development, and has had as much growth in one decade as the industrial world experienced in nearly a century. However, it has been at a high cost to the envir

35、onment.,AGREEMENT Exactly. Thats true. Youre right. Thats right. Thats correct. I agree.,DISAGREEMENT Im afraid I disagree with you. Im afraid not. No, I dont agree. I dont think so. No way. I doubt .,Discussion,Professor Keeling: Whatever we do, we have to do it as a global community. That means de

36、veloped and developing countries will have to work together. Li Bin: But its not the developing countries who put most of the carbon dioxide into the air. The developed countries are really the ones to blame.,S1: I agree with Li Bin. It is the developed countries that are really the ones to blame and to pay for that. S2: Well, I dont think so. I think Professor Keeling is right. Whatever we do, we have to do it as a global