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

edoorbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_______.(5)Theya

rebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’re5000peoplelivingherea

ndalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’tfindit.

Fillintheblanksusingsomething,anything,others,nobody,everyone,anybody,everywhere,none,other.Nonenobodyoth

ersothersomethinganythingeveryoneanybodyeverywhereWhatcanwedotoprotectourenvironment?Inourdailylife,weshouldfacemoreenviro

nmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,deadInourdailylife,w

eshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemo

reenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“ozone”(O3)氧气averybigho

leintheozonelayer,toomuchharmfulradiationfromthesun臭氧层放射，放射物n.洞，坑v.出现，形成n.种类，形式Inourdailylife,weshouldfacem

oreenvironmentalproblems.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；升起温室效应fewertreesfactorypollutiontrafficpollutiontheozonela

yermorecarbondioxideCanyoumatchthem?1aReadandunderstand.Lookatthefollowingpicturesandpredictthemainideaofthepassage.Choosesuitable

titlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.Theearthis4.6billionyearsold.Wehumanshaveli

vedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareveryg

oodfortheearthwhilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,th

eearthistakenaway.Forestshavebecomedeserts,somanykindsofanimalsandplantsaredisappearing.FewerTreesA.TrafficpollutionB.Factorypollution

C.FewertreesD.TheozoneholeE.Morecarbondioxide____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._______

______Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead._____________Aroundtheearth,there’saspecialk

indofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeint

heozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradi

ationcancausecancer.TrafficPollutionFactoryPollutionTheOzoneLayer直接地________________Carbondioxide(CO2)intheairhasincreasedalot.Itmainlycomes

fromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperaturei

srising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryse

rious,sowemustdosomethingnow.MoreCarbonDioxide1bRead1aandcompletethefollowingtasks.2.Whatdoesourplanetmeanhere?A.Thesun.B.Mars.C.Themoo

n.D.Theearth.3.Inthepassage,blanketrefersto____.A.carbondioxidearoundtheearthB.theozonelayerintheskyC.theforests

aroundtheworldD.pollutionallovertheworld4.TheworditinParagraph5refersto____.A.CO2B.O3C.O2D.H2O5.Whatisthebest

titleforthispassage?A.EnvironmentProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffectWritedownonlyth

ekeywordswhentakingnotes.1cCompletethenotesaccordingto1a.ProblemEffectontheenvironmentfewertreesforestsbec

omedeserts,animalsandplantsdisappeartrafficpollutiongreenhouseeffect,levelofoceansrising,climatechangeRetellitcarsandb

usespolluteair,healthproblemspollutelandandwater,riversandlakesdeadharmfulradiationreachestheearth,causecancerfactorypollutionozon

eholemoreCO22SurftheInternettocollectmoreinformationaboutenvironmentalproblemsandeffects.Thendiscusstheinformationingroupsandtakenotes.3.

Combinethekeypointsin1cand2toformashortpassageandpayattentiontotheproperlinkingwords.Asweallknow,waterpollutionisbecomingmoreandmorese

rious.Somefactoriespourwastewaterintotherivers.Asaresult,itmakesthewaterdirtyandsmellterrible.Mostoffishinthewaterhavediedand

wecan’tswiminthewater.Waterisveryimportanttohumanbeings,soweshoulddoourbesttoprotectandsaveit.Luckily,ourgovernmentistaking

measurestoprotectthewaterfrompollution.Youcanwriteitlikethis:Welearn:1.Somewords:hole,form,rise2.Someph

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

eypointstoformashortpassage.1.Read1a.2.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.3.FinishSectionCinyourwo

rkbook.4.ReviewSectionA-CandpreviewSectionD.