选修六unit4reading

1、Unit 4 Unit 4 Global WarmingGlobal WarmingLight our citiesHeat our buildings-1. What do we use energy for?Many things Many things consume energyconsume energy in our daily life. in our daily life.2. Where does all this energy come from?Wind powera coal power stationan oil refinerya nuclear power pla

2、nt炼油厂炼油厂solar panelshydro-electric damRenewable non-renewable: energy sources supplies of it never run outone day they will run out.Renewable or non-renewable?Renewable or non-renewable? Coal Oil Natural gas Uranium Wind (wind power) Sun (solar energy) Water (hydro-electric power) Plant waste (bioma

3、ss energy) Hot springs or geysers (geothermal energy) The sea (tidal energy)Fossil fuelsNon-renewableRenewable化石燃料化石燃料3. What are fossil fuels? Ancient animal and plant material below the surface of the earth with a high carbon content, such as coal, oil and natural gas, which can be burnt to produc

4、e energy. Also known as non-renewable energy because once they are used they have gone forever; they cannot be renewed. 4. What is the greenhouse made and used for? A greenhouse is made of glass and is used for growing plants, especially during cold weather.5. How does it work? The air inside is war

5、m because the glass traps the heat from the sun and keeps it from escaping. This makes the greenhouse heat up and so the plants can grow throughout the cold period.6. What are the “greenhouse gases”? In the atmosphere surrounding the earth there are gases, which are called “greenhouse gases”, includ

6、ing carbon dioxide, methane(甲烷甲烷, 沼气沼气) and water vapor.7. What do you think greenhouse gases do? They trap heat from the sun and therefore warm the earth.The Earth Is Becoming The Earth Is Becoming Warmer Warmer But Does It But Does It Matter?Matter?Look at the magazine title quickly and try tofind

7、 out : how is the text organized?It has a title; a first paragraph that is in bold; the main text; Diagram(graph); some quotes.Fast ReadingRead the text fast Read the text fast and answer the questions and answer the questions on page 27 Ex1 on page 27 Ex1 1.Who wrote the magazine article? What is t

8、he name of the magazine? Sophie Armstrong wrote the magazine article. The name of the magazine is Earth Care.2. What are the names of the three scientists mentioned in the article? They are Dr. Janice Foster, Charles Keeling and George Hambley.3. What do they think about global warming? Do they agre

9、e with one another? They dont agree with each other. Dr. Janice Foster thinks the effects of global warming could be very serious. George Hambley thinks global warming will be mild with few bad environmental consequences. 4.What are the two graphs about?Graph 1 shows the temperature increase of one

10、degree Fahrenheit between 1860 to 2000.Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.Graph 1:Graph 2:5. What is the main topic of the article? Global warmingCareful ReadingRead the text carefully Read the text carefully and sum up and sum up the main idea of each part.

11、the main idea of each part.Part one: ( para1 )Introduce a topic / raise a questionPart two: ( para2-5)Explain how global warming comes about. Part three:( para6 )List two different attitudesPart four:( para7 )Draw a conclusion .1. What is the purpose of the paragraph that is in bold?To introduce the

12、 topic.To illustrate(阐述阐述) points by providing evidence.2. What are the diagrams for?Questionnaires 3. The author probably agrees that _A. actually global warming is good for man.B. we should do nothing about the global warming.C. catastrophes will happen if the globe keeps on warming.D. a lot remai

13、ns to be found out about the effects of global warming.4. But there are some very different attitudes among scientists towards this issue.”“issue here means the same as the one in_ .A. I bought the new stamp the day of its issue. B. They are talking about one of the key issues in the election campai

14、gn.C. The government is expected to issue a statement about the election.D. The magazine has 12 issues each year.ReadingRead with the tape Read with the tape and finish Part 2 on and finish Part 2 on page 27page 27True/ false 1. How has the global warming come about?2. What are the effects of global

15、 warming?Careful ReadingRead the text again and answer the questions.1. How has the global warming come about?Human activityThe burning of fossil fuelsgreenhouse gasesgreenhouse effectHuge quantities of extra carbon dioxide(We need those gases)2.What are the effects of global warming? Encourage a gr

16、eater range of animals.The sea level to rise. Severe storms, floods, droughts, famines, the spread of diseases, and disappearance of species. Make plants grow quicker. Crops will produce more.Bad effects:Good effects:Of the two ideas, which are you in favor of ? The Dr Janice Fosters. Why ?Because w

17、e have witnessed a large number of disasters predicted by some people.tsunamiThe sea level to rise.tornadosSevere stormsdroughtsfaminesthe spread of diseasesdestruction of speciesWhat should we do What should we do about the terrible effects about the terrible effects above?above?.Try to reduce the

18、use of motor vehicleselectric vehiclebikerunningSolar energy carPlanting treesCleaning the Cleaning the rubbishrubbishUsing language 1.Who are the writers of the letters?Ouyang Guang and the editor of Earth Care.Reading2.Whats the purpose of Ouyang Guangs letter? To get some suggestions for what he

19、can do about global warming.Read Ouyangs email and answer:3.What are Ouyang Guangs two concerns? The first is that he feels that individual cannot have effect on huge environmental problems. The second is that he is not sure where to start with his project.5. Does Earth Care agree with Ouyang Guangs

20、 opinion that individuals can have little effect? No, Earth Care doesnt agree.Read Earth Cares reply and answer:6.What suggestions does Earth Care give him?Turn electrical appliances off when not using them.Dont turn up the heat, put on more clothes.Walk or ride a bike, dont drive.Recycle.Buy things

21、 made from recycled materials.Buy products that use less energy.Plant trees.Talk with family and friends about global warming.What else should our government do to slow down global warming?1.Give money to green the surroundings and protect the forests.2.Encourage people to find and use more renewabl

22、e energy.rare plantsrare animals3.Make laws to protect rare plants and animals .Return the green world to usLets make this world a better place !1. on behalf of 代表代表一方；作为一方；作为的代言人的代言人 Id like to thank you on behalf of my family.2. put up with 忍受；容忍忍受；容忍= tolerate I dont know how you put up with thei

23、r endless quarrels. put forward 提出提出 put off 推迟；延期推迟；延期 put out 扑灭；熄灭扑灭；熄灭 put through 接通电话接通电话 put on 穿上；上演穿上；上演 put down 记下；平定记下；平定 put aside 储存；放在一边储存；放在一边I cannot put up with the toothache. We cant change the bad weather, so we must put up with it. I wont put up with her rudeness any longer!I ca

24、nt put up with stress of study3. advocate vt. 拥护；提倡；主张拥护；提倡；主张 advocate (doing) sth. 提倡做某事提倡做某事 advocate that sb. (should) do 提倡提倡.如：如：I dont advocate building a factory around our school.People advocate that something (should) be done to protect the environment. 4.- electrical appliance on so long

25、as you are using it.electric: 电的电的.电力的电力的(指指产生电的或用电直接产生产生电的或用电直接产生的或用电操作等的或用电操作等)electric generator 发电机发电机 an electric shock 触电触电 an electric light 电灯电灯electrical: adj. 与电有关的与电有关的concerning electricity 概括概括 总称电器总称电器an electrical engineer. an electrical fault.电力故障电力故障electrical equipment/ appliances5

26、.so long as= as long as conj. 只要只要, 如果如果1. Its OK to leave an electrical appliance on so long as you are using it.2. 只要你不把书弄脏只要你不把书弄脏, 就可以借给你就可以借给你.只要你在使用电器只要你在使用电器, 使它处于工作状态是可以的使它处于工作状态是可以的.You may borrow the book so long as you keep it clean. Do you have a minute? Ive got something to tell you. OK

27、, _ you make it short.A. now that B. if only C. so long as D. every time点拨点拨 now that既然，表示原因；既然，表示原因；if only是是就就好了，后面一般用虚拟语气；好了，后面一般用虚拟语气； every time每次，每次，每当，表示时间。每当，表示时间。同义词组同义词组:on condition that , only if, ifproviding (that), provided (that)注意注意:1. as long as 有时表示有时表示 “像像那么久那么久”;2. only if 接从句用于句首接从句用于句首,主句主谓语倒装主句主谓语倒装;3. if only 表达表达 “要是要是该多好啊该多好啊!”需要虚拟语气需要虚拟语气.同义表达：同义表达：You can go out on condition that you wear an overcoat.1. You can go out _ _ _ you wear an overcoat.2. You can go out _ _ you wear an overcoat.3. You can g