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Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionC(1)________ofusknowshowtostopthebadbehavior.(2)Iknockedonthedo

orbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe____

___.(5)TheyarebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’re5000peoplelivinghere

andalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’t

findit.Fillintheblanksusingsomething,anything,others,nobody,everyone,anybody,everywhere,none,other.N

onenobodyothersothersomethinganythingeveryoneanybodyeverywhereWhatcanwedotoprotectourenvironment?Inourdailylife,

weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,dead

Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,tak

eawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxy

genaspecialkindofoxygencalled“ozone”(O3)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Inour

dailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?CO2carbondioxideincreasealot,forma“blanket”,theheatfromthesuncan’tesc

ape二氧化碳毛毯，毯子渗出；逃跑；逃脱causetheleveloftheseatorisecalled“thegreenhouseeffect”or“globalwarming”v.上升；起床；升起温室效应fewertreesfacto

rypollutiontrafficpollutiontheozonelayermorecarbondioxideCanyoumatchthem?1aReadandunderstand.Lookatthefollowingpictures

andpredictthemainideaofthepassage.ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.Theearthis4.6bil

lionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneare

verygoodfortheearthwhilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwh

enthewindblows,theearthistakenaway.Forestshavebecomedeserts,somanykindsofanimalsandplantsaredisappearing.FewerTrees

A.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondioxide____________Inbigcities,carsandb

useshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._____________Factorieshavealsopollutedthelan

dandthewater.Asaresult,manyriversandlakesarenowdead._____________Aroundtheearth,there’saspecialkindo

foxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybighol

eintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiati

oncancausecancer.TrafficPollutionFactoryPollutionTheOzoneLayer直接地________________Carbondioxide(CO2)intheairhasincreasedalot.Itmainlycomesfrom

burningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”

.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemus

tdosomethingnow.MoreCarbonDioxide1bRead1aandcompletethefollowingtasks.2.Whatdoesourplanetmeanhere?A.Thesun.B

.Mars.C.Themoon.D.Theearth.3.Inthepassage,blanketrefersto____.A.carbondioxidearoundtheearthB.theozonelayeri

ntheskyC.theforestsaroundtheworldD.pollutionallovertheworld4.TheworditinParagraph5refersto____.A.CO2B.O3C.O2D.H2O5.Whatisthebesttitlefor

thispassage?A.EnvironmentProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffectWritedownonlythekeyw

ordswhentakingnotes.1cCompletethenotesaccordingto1a.ProblemEffectontheenvironmentfewertreesforestsbecom

edeserts,animalsandplantsdisappeartrafficpollutiongreenhouseeffect,levelofoceansrising,climatechangeRetellitcarsandbu

sespolluteair,healthproblemspollutelandandwater,riversandlakesdeadharmfulradiationreachestheearth,cause

cancerfactorypollutionozoneholemoreCO22SurftheInternettocollectmoreinformationaboutenvironmentalproblemsandeffects.Thendi

scusstheinformationingroupsandtakenotes.3.Combinethekeypointsin1cand2toformashortpassageandpayattentiontotheproperlinkingwords.Asweallknow,waterpollu

tionisbecomingmoreandmoreserious.Somefactoriespourwastewaterintotherivers.Asaresult,itmakesthewaterdirtyandsmellterrible.Mostoffishi

nthewaterhavediedandwecan’tswiminthewater.Waterisveryimportanttohumanbeings,soweshoulddoourbesttoprotectandsaveit.Luck

ily,ourgovernmentistakingmeasurestoprotectthewaterfrompollution.Youcanwriteitlikethis:Welearn:1.Somewords:hole,form,rise2.Somephrases:takeaway,

referto3.Somesentences:Alltheseproblemsareveryserious,sowemustdosomethingnow.Wecan:1.Talkabouttheharmofpollution.2.Combinethek

eypointstoformashortpassage.1.Read1a.2.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.3.FinishSec

tionCinyourworkbook.4.ReviewSectionA-CandpreviewSectionD.