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

onthedoorbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithoneh

andandwipingthewindowwiththe_______.(5)TheyarebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’r

e5000peoplelivinghereandalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’tfindit.Fillintheblank

susingsomething,anything,others,nobody,everyone,anybody,everywhere,none,other.Nonenobodyothersothersomethinganythingeveryoneanybody

everywhereWhatcanwedotoprotectourenvironment?Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousayso

methingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,deadInourdailylife,weshould

facemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesert拿走Inourdailylife,wes

houldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“ozone”(O3)氧气averybi

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

nvironmentalproblems.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fewertreesfactorypollutiontrafficpollutiontheoz

onelayermorecarbondioxideCanyoumatchthem?1aReadandunderstand.Lookatthefollowingpicturesandpredictthe

mainideaofthepassage.ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.Theearthis4.6billionyearsold

.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearth

whilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebecomedeser

ts,somanykindsofanimalsandplantsaredisappearing.FewerTreesA.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondioxid

e____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._____________Factoriesha

vealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead._____________Aroundtheearth,there’saspec

ialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozone

layer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcanc

ausecancer.TrafficPollutionFactoryPollutionTheOzoneLayer直接地________________Carbondioxide(CO2)intheairhasincreasedalo

t.Itmainlycomesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“t

hegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow

.MoreCarbonDioxide1bRead1aandcompletethefollowingtasks.2.Whatdoesourplanetmeanhere?A.Thesun.B.Mars.C.Themoon.D.Theearth.3.Inthep

assage,blanketrefersto____.A.carbondioxidearoundtheearthB.theozonelayerintheskyC.theforestsaroundtheworldD.pollutionallovertheworld4.TheworditinPar

agraph5refersto____.A.CO2B.O3C.O2D.H2O5.Whatisthebesttitleforthispassage?A.EnvironmentProblemsB.Pollutiononth

eEarthC.HopefortheFutureD.TheGreenhouseEffectWritedownonlythekeywordswhentakingnotes.1cCompletethenotesaccordingto1a.Pro

blemEffectontheenvironmentfewertreesforestsbecomedeserts,animalsandplantsdisappeartrafficpollutiongr

eenhouseeffect,levelofoceansrising,climatechangeRetellitcarsandbusespolluteair,healthproblemspollutelandandwater,riversand

lakesdeadharmfulradiationreachestheearth,causecancerfactorypollutionozoneholemoreCO22SurftheInternettocollectmoreinformationaboutenvironmentalp

roblemsandeffects.Thendiscusstheinformationingroupsandtakenotes.3.Combinethekeypointsin1cand2toformashortpassageand

payattentiontotheproperlinkingwords.Asweallknow,waterpollutionisbecomingmoreandmoreserious.Somefactoriespourwastew

aterintotherivers.Asaresult,itmakesthewaterdirtyandsmellterrible.Mostoffishinthewaterhavediedandwecan’tswiminthewater.W

aterisveryimportanttohumanbeings,soweshoulddoourbesttoprotectandsaveit.Luckily,ourgovernmentistakingmeasu

restoprotectthewaterfrompollution.Youcanwriteitlikethis:Welearn:1.Somewords:hole,form,rise2.Somephrases:takeaway,r

eferto3.Somesentences:Alltheseproblemsareveryserious,sowemustdosomethingnow.Wecan:1.Talkabouttheharmofpollution.2.C

ombinethekeypointstoformashortpassage.1.Read1a.2.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.3.FinishSectionCinyourwo

rkbook.4.ReviewSectionA-CandpreviewSectionD.