Unit 2 Topic 2 Section C 课件 1.ppt

Unit 2 Topic 2 Section C 课件 1.ppt

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时间:2020-01-24

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1、Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionC课件1Review(1)________ofusknowshowtostopthebadbehaviour.(2)Iknockedonthedoorbut___________answered.(3)Someofthesebooksarebetterthan__________.Fillintheblanksusingsomething,anything,others,nobody,everyone,anybody,everywhere,no

2、ne,other.Nonenobodyothers(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_______.(5)TheyarebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?othersomethinganything(7)There’re5000peoplelivinghereandalmost_________hashis/herowncar.(8)He’scleverert

3、han____________Iknow.(9)I’velooked__________butIcan’tfindit.everyoneanybodyeverywhereWhatcanwedotoprotectourenvironment?Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,deadInourdailylife,weshouldfac

4、emoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“ozone”(O3)氧气averybigholeintheozonelayer,toomuchharmfulradiationfromt

5、hesun臭氧层放射,放射物n.洞,坑v.出现,形成n.种类,形式Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?CO2carbondioxideincreasealot,forma“blanket”,theheatfromthesuncan’tescape二氧化碳毛毯,毯子渗出;逃跑;逃脱causetheleveloftheseatorisecalled“thegreenhouseeffect”or“globalwarming”v.上升;起床;升起温室效

6、应ExercisesfewertreesfactorypollutiontrafficpollutiontheozonelayermorecarbondioxideCanyoumatchthem?ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.A.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.MorecarbondioxideTheearthis4.6billionyearsold.Wehu

7、manshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe'vedoneareverygoodfortheearthwhilesomearebad.____________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshaveb

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