1、Unit 4 Global WarmingHave you ever seen the film The Day After Tomorrow?What kind of disasters have you seen in the film?What have you learnt from the film?Lets enjoy a part of this movie:What kind of disaster have you seen in the movie?海啸Tsunami Other disasters in the movie:龙卷风(Tornado)雪灾snow disas
2、ter 洪灾Flood What have you learnt from the movie?Global WarmingWhat other disasters will be caused by global warming?Desertification沙漠化Drought 干旱melting glaciersfaminesdiseasescoral reefs珊瑚礁golden monkeyfishginkgo银杏disappearance of speciesThe earth is in danger.What can we do about global warming?Tas
3、k 1:Skim the first letter,and answer the questions below:1.Who is the writer?2.What is the purpose of the email?/What are the two concerns of the email?1.Who is the writer?2.What is the purpose of the letter?/What are the two concerns of the letter?A student named Ouyang Guang.His opinion that,as an
4、 individual,he can have no effect on environmental problems.Getting some suggestions for what he can do about global warming;Task 2:Read the second email,and answer the question:Do Earth Care agree with Ouyang Guangs opinion that individuals can have no effect?No,Earth Care dose not agree.Task 3:Now
5、 scan the letter and list Earth Cares suggestions in the chart on P30,and discuss whether you can carry out each suggestion.Give reason for you answers.Earth Cares suggestionCan you carry it?ReasonEarth Cares suggestionsCarry out1.Turn_ off if not using them.2._ instead of turning up the heat.Walk o
6、r ride a bike if you can.4.Recycle cans,bottles,plastics and buy things made from_.Buy products that_.Plant more trees.7.Talk with _ about globalwarming.electrical appliancesPut on more clothesrecycled materialsyour family and friends5.3.6.are economical with energyNow in pairs make a poster for you
7、r school that tells students various ways they can reduce the amount of carbon dioxide in the air.Sample poster Fight global warming (heading)Cut down on energy.Cut down on carborn dioxide.1.If not using an electrical item,turn it off.2.Walk or ride a bike and save fossil fuels.3.Recycle paper,cardboard and newspapers.4.Buy energy-saving products like low energy light bulbs.5.Plant trees to absorb CO2.Every effort counts!(slogan)HomeworkSurf the internet to know more about what we can do about global warming.
