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1、Unit 4 Global warmingWarming up,高二人教新课标版选修六,Things that use energy around us or at any other places:,In a house,lights television cassette player computerfridge stove washing machine hairdryer video recorder,coal oilnatural gas wind(power)sun(solar energy)water(hydro-electric power)the sea(tidal ene
2、rgy)uranium(nuclear energy)plant waster(biomass energy),Windmills(风车),renewable,Source of energy:,A coal power station,non-renewable,An oil refinery(精炼厂),non-renewable,A nuclear power plant,non-renewable,Solar panels(太阳电池板),renewable,A hydro-electric dam,renewable,Geothermal(地热的)Energy Plant,Thermal
3、(温泉的)Region,Iceland,Renewable or non-renewable?,Renewable or non-renewable?,CoalOilNatural gasUranium,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(化石燃料),Non-renewable,Renewable,Sampl
4、e lists,lightsheatingtelevisionvideo recordercars and buses,oil,coal,natural gas,wind(wind power),sun(solar energy),renewable,renewable,non-renewable,non-renewable,non-renewable,fridge,stove,washing machine,hair-dryer,water(hydro-electric),renewable,plant waste(biomass energy),renewable,hot springs(
5、geothermal energy),renewable,the sea(tidal energy),renewable,computer,uranium(nuclear energy),non-renewable,What is told in the picture?,What is global warming?,What cause global warming?,Greenhouse,2012,glaciers melt 冰川融化,species extinction 物种灭绝,sea level rises 海平面上升,Global warming also causes many
6、 extreme weather events.,drought,flood,typhoon,Tsunami hits Indonesia,sandstorm,Desertification,high temperature,What can we do?,Copenhagen climate change summit,carbon emission reduction,Every coin has two sides.Energy lights our cities and heats our buildings.Meanwhile,many kinds of energy sources
7、 cause pollution.How to deal with it?,renewable energy sources,solar energy,windmills,wind energy,hydro energy,geothermal energy(地热能),What more things can you do?,The minimum effort is also a kind of support.再小的力量也是一种支持。,An energy source is“renewable”when supplies of it never run out and“non-renewab
8、le”when one day they will run out.,我们称用之不竭的资源为“可更新资源”。称最终会枯竭的资源为“不可更新资源”。,Language points,1)run outrun out 是不及物的,后面不能加宾语,所以没有被动。run out of 是及物的,后面必须加宾语。如：We have run out of the ink.=The ink has been run out of.=The ink has run out.,2)renewable/non-renewable可更新资源/不可更新资源If I can rephrase what I had just said,I think our resource is not renewable.如果我可以把我刚说的话重新措辞一下,我变为我们的资源是不能再生的。,Homework,1.Review the new words and expressions in this class.2.If possible,watch the movie 2012&write your comment.3.Preview Reading.,
