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,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,LOGO,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,LOGO,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,LOGO,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,LOGO,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,LOGO,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,*,Unit 4Global warming,Unit 4,Things that consume energy,video,player,refrigerator,computer,hairdryer,light/TV/water dispenser,car,washing machine,Things that consume energy,energy sources,solar energy,oil,coal,biomass energy,nuclearenergy,hydro-electric power,wind power,natural gas,wave/tidalenergy,energy sourcessolar energyoilc,Coal,Oil,Natural gas,Uranium,(nuclear energy),Wind(wind power),Sun(solar energy),Water(hydro-electric power),Plant waste(biomass energy),Hot springs or geysers(geothermal energy),The sea(tidal energy),Fossil fuels,Non-renewable,Renewable,CoalWind(wind power)Fossil,What are they?What,are,these buildings,made of,?,Whats the use?,greenhouse/glass,A greenhouse,is used for_,especially during _ weather.,Pre-reading,Turn to Pre-reading 1,Page 25.,Read&answer.,growing plants,cold,What are they?What are th,_ the heat from the sun,keeps it from _,_ the air up,How does a greenhouse work?,trapfrom:keep sth in a place,存住来自,的,traps,escaping,heats,_ the,In the,atmosphere,surrounding the earth there are gases,which are called“,greenhouse gases,”.,methane,water vapor,carbon dioxide,Greenhousegases?,In the atmosphere surrounding,carbon dioxide,Fossil Fuel(,矿物燃料,),coal,oil,gas,global warming,?,produce,carbon dio,What do you think greenhouse gases do?,Greenhouse gases,_ the heat of the sun and therefore _ the earth.,It is known as _,.,Nowadays our earth is becoming _.,greenhouse effect,trap,warm,warmer and warmer,What do you think greenhouse g,The earth is becoming warmer-but does it matter?,Reading,Page 26,The earth is becoming warmerRe,Skimming,Skim the title:,THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?,What is the main topic?,The earth.B.Global warming.,C.Becoming warmer doesnt matter.,SkimmingSk,Skimming,Where does this article most probably come from?,Newspaper B.Novel C.Magazine,SkimmingWh,Skimming,Who wrote the article?,What is the name of the magazine?,Tip:,In English,some,noun,s begin with a capital letter(,大写字母,),such as,name,s of people and places,title,s of magazines,newspapers,stories and books,peoples,title,s(,头衔,),etc.,Skim the first paragraph:,Sophie Armstrong,Earth Care,Skimming,Skimming,What are the names of the three scientists mentioned in the article?,Dr Janice Foster,Charles Keeling,George Hambley,SkimmingWh,1.How much did the temperature of the earth rise during the 20th century?,About one degree Fahrenheit.,2.What is the question of Sophie Armstrong?,So how has this come about and does it matter?,Para.1,1.How muc,Para.2,1.What conclusion can you make from the Graph1?,The earth is becoming warmer.,2.W,ho is to blame for the earths,b,ecoming warmer?,It is human activity that has caused this global warming rather than a random but natural phenomenon.,Para.21.Wh,Para,.,3,How do human affect the earth warming up?,It is due to the burning of,fossil fuels like coal,natural,g,as and oil to produce energy.,2.What is greenhouse gases?,Greenhouse gases are some,byproducts of the process of producing,energy,the most important one,of which,is carbon,d,ioxide.,3.What is greenhouse effect?,It is a natural phenomenon which happens when small amounts of gases in the atmosphere,like carbon dioxide,methane and water vapour,trap heat from the sun and therefore warm the earth.,3.What is,4.What kind of problem does,it,begin when huge quantities of extra carbon dioxide into the atmosphere?,It means that more heat energy tends to be trapped in,the atmosphere causing the global temperature to go,up.,4.What ki,1.What conclusion can you get from Graph2?,The levels of carbon dioxide have increased greatly over the last 100 to 150 years.,2.What did the scientist Charles Keeling find between the years from 1957 to 1997?,He found that the carbon dioxide went up from around 315 parts to around 370 parts per million.,Para.4,1.What co,Para.5,1.Do the scientists accept the data?,They accept the data and agree that it is the,buring of fossil fuels that had resulted in this increase in carbon dioxide.,2.How high will the temperature increase go?,Dr Janice Foster says that the amount of warming could be as low as 1 to 1.5 degree Celsius,but it could be as high as 5 degrees.,Para.51.D,Tip:,You can know somebodys opinion through understanding his,or what he said.,What do,Dr.Janice Foster,and the scientist,George Hambley,think about the results of global warming?,Do they agree with one another?,quotations(,引言,),Para 6,Tip:You c,Dr.Janice Foster,thinks,the effects of,global warming could be
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