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Whatkindsofpollutiondoyouknow?Theriversandlakesare_______becausethefactorieshavepollutedthewater.Carbondioxide(CO2)formeda______aroundtheearthandtheheatcan’tescape.Thegreenhouseeffectcausestheleveloftheseato_____andtheclimateoftheearthtochange.Task1:Fastreading_____________Inbigcitiescarsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._________________Factorieshavealsopollutedthelandandthewater.Asaresultmanyriversandlakesarenowdead.___________Aroundtheearththere’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer.Listento1atoknowmoreaboutthetext.Task2:Intensivereading2.Whatdoesourplanetmeanhere?A.Thesun.B.Mars.C.Themoon.D.Theearth.3.Inthepassageblanketrefersto____.A.carbondioxidearoundtheearthB.theozonelayerintheskyC.theforestsaroundtheworldD.pollutionallovertheworld4.TheworditinParagraph5refersto____.A.CO2B.O3C.O2D.H2O5.Whatisthebesttitleforthispassage?EnvironmentalProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffectWritedownonlythekeywordswhentakingnotes.Problem2.SurftheInternettocollectmoreinformationaboutenvironmentalproblemsandeffects.Thendiscusstheinformationingroupsandtakenotes.1.带走2.臭氧层3.二氧化碳4.温室效应5.指的是6.海平面7.直接到达地球1.Read1a.2.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.3.FinishSectionCinyourworkbook.4.ReviewSectionA-CandpreviewSectionD.funreadingtakeaway拿走取走我不喜欢这些书请把它们拿走Idon'tlikethesebooks.Pleasetakethemaway.refersto谈及说起;指的是我们的星球指的是地球