1、Book 6 Unit 4 Global warmingBook 6 Unit 4 Global warmingLook at the picture and what can you know from it？234What people are doing1 light things that use energy in your home micro-wave oven television hairdryer video player fridge computer washing machine stoveDo you know how energy is produced?How
2、many sources of energy can you list?B:We shall do nothing about global warming.A novelheatLets live a low-carbon life！oil refineries_Buy things made from recycled materials.How does the greenhouse work?washing machineA greenhouse is made of _Carbon dioxideWind energy is used as power to produce elec
3、tricity.windmillsElectricity is produced by burning coals.coal power stationsOil is refined and made pure.oil refineriesNuclear energy is converted into electricity.nuclear power plantpieces of equipment on a roof that collects energy from sunlight in order to heat water and produce electricity sola
4、r panelsWater are kept back and raised its level for irrigation or for producing electricity.hydro-electric damsgeothermal(地热的地热的)energy plantElectricity is generated from hot dry rocks.Which source is cleaner or healthier?Which source is“renewable”?Thinking:Coal oil wind sun nuclear water undergrou
5、nd heatnon-renewablerenewableCarbon Carbon dioxidedioxidecoaloil natural gasglobal warming Why?Fossil Fuels1.Do you know what it is?A greenhouseWhat is it used for?What is it used for?Pre-reading:A greenhouse is made of _ and is used for _,especially during _weather.growing plantsglasscold 2.How doe
6、s the greenhouse work?The air inside was warm because the glass traps(挡住挡住,吸收吸收)the heat from the sun and keeps it from escaping(逃跑逃跑).This makes the greenhouse heat up(热量热量上升上升)and so the plants can grow throughout(在在期间期间)the cold period.THE EARTH IS BECOMING WARMERgrowing plantsDisappearance of sp
7、eciesthe new words and expressions.global warmingGlobal warming.carbon dioxideBuy things made from recycled materials.How does the greenhouse work?Earth Care上升)and so the plants can growThe temperature of the earth rose about one degree3.What are Greenhouse gases?In the atmosphere surrounding the ea
8、rth there are gases,which are called“greenhouse gases”,mainly including _,and water vapor(水蒸气水蒸气).carbon dioxide4.Greenhouse EffectGlobal warmingGreenhouse gases trapped the heat from the sun,which causes the temperature of earth goes up.The Earth is Becoming Warmer -But Does It Matter?ReadingSkim t
9、he title:THE EARTH IS BECOMING WARMER BUT DOES IT MATTER?The earth.B.Global warming.C.Becoming warmer doesnt matter.Skimming2.This article is from _.A.An environmental magazine.B.A diaryC.A novel D.A story3.Who wrote the article?Sophie Armstrong 4.What is the name of the magazine?Earth Care C.Introd
10、uction of global warming A.How global warming comes aboutB.List two different attitudes towards global warmingD.Whether people should do something about global warmingSkim:Para.1Para.2-5Para.6Para.7 Who writes this article?Sophie Armstrong of Earth CareWhat happened during 20th century?The temperatu
11、re of the earth rose about one degreeCareful readingIntroduction of global warming.2._1._(2-5)How global warming comes about?the burning of fossil fuels human activityCarbon dioxideMethaneWhat are the greenhouse gases?1.2.3.Water vapor3.What are the two graphs about?Graph 1 shows the temperature inc
12、rease of one degree Fahrenheit between 1860 to 2000.Graph 2 shows the carbon dioxide content in the atmosphere from 1957 to 1997.Graph 1:Graph 2:What are the different attitudes towards global warming?6Part3(6-7)Dr.Janice FosterGeorge HambleypessimisticoptimisticPart3(6-7)a rise in the see levelseve
13、re stormsdroughtsFloods DroughtsFaminesSpread of diseasesDisappearance of species optimisticIt is a _ thing,which makes plants grow _;crops will produce _;it will encourage a greater range of _ all of which will make life _.positivequickermoreanimalsbetterDr.Janice FosterGeorge HambleyPart3(6-7)Do t
14、hey draw a conclusion at last?NoWhat is the name of the magazine?oil refineriessun and keeps it from escaping(逃跑).especially during _weather.How global warming comes about?glass traps(挡住,吸收)the heat from thenatural gasTHE EARTH IS BECOMING WARMERSophie Armstrongsun and keeps it from escaping(逃跑).coa
15、l power stationsStep 4 DiscussionNo one knows the effects of global warming.Does that mean we should do nothing?Now lets listen to a song and then give your opinions.在你心中有个地方，我知道那里充满了爱。这个地方会比明天更灿烂。如果你真的努力过，你会发觉不必哭泣。在这个地方，你感觉不到伤痛或烦忧。到那个地方的方法很多，如果你真心关怀生者，营造一些空间。创造一个更美好的地方.拯救这世界，让它变得更好，为你、为我，为了全人类。Disc
16、ussion（讨论）ABA:We shall do something about global warming.B:We shall do nothing about global warming.Lets live a low-carbon life！Turn electrical appliances off when not using them.Put on more clothes,dont turn up the heat.Walk or ride a bike,dont drive.Recycle cans,bottles,plastic bags and newspapers.Buy things made from recycled materials.Buy products that use less energy.Plant trees.Talk with family and friends about global warming.Homework1.Read the passage again and recite the new words and expressions.2.Preview the language points.
