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1、Unit2SavingtheEarth Topic2Alltheseproblemsareveryserious.SectionC(1)________ofusknowshowtostopthebadbehavior.(2)Iknockedonthedoorbut___________answered.(3)Listen!__________isknockingatthedoor.(4)______isdifficultifyouputyourheartintoit.(5)___________isready.Let'sbegin.(6
2、)Bequiet.Ihave___________importanttotellyou.(7)Isthere___________youcandotohelpher?(8)There’re5000peoplelivinghereandalmost_________hashis/herowncar.(9)I'mnewhere.Idon'tknow____________here.(10)I’velookedformypen__________butIcan’tfinditanywhere.Fillintheblanksusingsometh
3、ing,anything,everything,nothing，nobody,everyone,anybody,everywhere,none,someone.ReviewNonenobodysomeoneEverythingsomethinganythingeveryoneanybodyeverywhereNothingWhatshouldwedotoprotectourenvironment?Inourdailylife,weshouldfacemoreenvironmentalproblems.Whatarethey,doyoukn
4、ow?cities,pollute,healthproblemsfactories,thelandandthewater,deadcutdown,millionsof,takeawaytheearth,becomedeserts拿走oxygenaspecialkindofoxygencalled“ozone”(O3)臭氧oxygen氧气averybigholeintheozonelayer,toomuchharmfulradiationfromthesun臭氧层放射，放射物n.洞，坑v.出现，形成n.种类，形式CO2carbondioxi
5、deincreasealot,forma“blanket”,theheatfromthesuncan’tescape二氧化碳毛毯，毯子渗出；逃跑；逃脱called“thegreenhouseeffect”causetheleveloftheseatorise温室效应v.上升；起床；升起Alltheseproblemsareveryserious,sowemustdosomethingnow.fewertreesfactorypollutiontrafficpollutiontheozonelayermorecarbondioxideCan
6、youmatchthem?Choosesuitabletitleforeachparagraph.Thenwriteitdowninfrontofeachparagraph._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebecomedeserts,somanykindsofanimalsandplantsaredisappearing.FewerTr
7、eesA.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondioxide____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems.TrafficPollutionA.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondio
8、xide_____________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowd
