仁爱九级上册Unit2 topic2 SectionC(共32张PPT).pptx

Whatkindsofpollutiondoyouknow?Theriversandlakesare_______becausethefactorieshavepollutedthewater.Carbondioxide(CO2)formeda______aroundtheearthandtheheatcan’tescape.Thegreenhouseeffectcausestheleveloftheseato_____andtheclimateoftheearthtochange.Task1:Fastreading_____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._________________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead.
___________Aroundtheearth,there’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer.Listento1atoknowmoreaboutthetext.Task2：Intensivereading2.Whatdoesourplanetmeanhere?
A.Thesun. B.Mars.
C.Themoon. D.Theearth.3.Inthepassage,blanketrefersto____.
A.carbondioxidearoundtheearth
B.theozonelayerinthesky
C.theforestsaroundtheworld
D.pollutionallovertheworld4.TheworditinParagraph5refersto____.
A.CO2B.O3C.O2D.H2O5.Whatisthebesttitleforthispassage?
EnvironmentalProblems
B.PollutionontheEarth
C.HopefortheFuture
D.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。
whileconj.而,然而,相当于but,表示对比
他是老师而我是司机。
Heisateacher,whileIamadriver.
Itcausestheleveloftheoceanstoriseand…
它能让海洋的水平面上升……