Unit2Topic2SectionCVIP专享VIP免费

Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.SectionC(1)________ofusknowshowtostopthebadbehavior.(2)Iknockedonthedoorbut___________answered.(3)Someofthesebooksarebetterthan__________.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_______.(5)TheyarebeautifulbutIamlookingfor___________useful.(6)Isthere___________youcandotohelpher?(7)There’re5000peoplelivinghereandalmost_________hashis/herowncar.(8)He’sclevererthan____________Iknow.(9)I’velooked__________butIcan’tfindit.Fillintheblanksusingsomething,anything,others,nobody,everyone,anybody,everywhere,none,other.NonenobodyothersothersomethinganythingeveryoneanybodyeverywhereWhatcanwedotoprotectourenvironment?Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,deadInourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesert拿走Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“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；升起温室效应fewertreesfactorypollutiontrafficpollutiontheozonelayermorecarbondioxideCanyoumatchthem?1aReadandunderstand.Lookatthefollowingpicturesandpredictthemainideaofthepassage.ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswe’vedoneareverygoodfortheearthwhilesomearebad._________Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebecomedeserts,somanykindsofanimalsandplantsaredisappearing.FewerTreesA.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondioxide____________Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems._____________Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead._____________Aroundtheearth,there’saspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer.TrafficPollutionFactoryPollutionTheOzoneLayer直接地________________Carbondioxide(CO2)intheairhasincreasedalot.Itmainlycomesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncan’tescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow.MoreCarbonDioxide1bRead1aandcompletethefollowingtasks.2.Whatdoesourplanetmeanhere?A.Thesun.B.Mars.C.Themoon.D.Theearth.3.Inthepassage,blanketrefersto____.A.carbondioxidearoundtheearthB.theozonelayerintheskyC.theforestsaroundtheworldD.pollutionallovertheworld4.TheworditinParagraph5refersto____.A.CO2B.O3C.O2D.H2O5.Whatisthebesttitleforthispassage?A.EnvironmentProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffect1aReadandunderstand.Writedownonlythekeywordswhentakingnotes.1cCompletethenotesaccordingto1a.ProblemEffectontheenvironmentfewertreesforestsbecomedeserts,animalsandplantsdisappeartrafficpollutiongreenhouseeffect,levelofoceansrising,climatechangeRetellitcarsandbusespolluteair,healthproblemspollutelandandwater,riversandlakesdeadharmfulradiationreachestheearth,causecancerfactorypollutionozoneholemoreCO22SurftheInternettocollectmoreinformationaboutenvironmentalproblemsandeffects.Thendiscusstheinformationingroupsandtakenotes.3.Combinethekeypointsin1cand2toformashortpassageandpayattentiontotheproperlinkingwords.Asweallknow,waterpollutionisbecomingmoreandmoreserious.Somefactoriespourwastewaterintotherivers.Asaresult,itmakesthewaterdirtyandsmellterrible.Mostoffishinthewaterhavediedandwecan’tswiminthewater.Waterisveryimportanttohumanbeings,soweshoulddoourbesttoprotectandsaveit.Luckily,ourgovernmentistakingmeasurestoprotectthewaterfrompollution.Youcanwriteitlikethis:Welearn:1.Somewords:hole,form,rise2.Somephrases:takeaway,referto3.Somesentences:Alltheseproblemsareveryserious,sowemustdosomethingnow.Wecan:1.Talkabouttheharmofpollution.2.Combinethekeypointstoformashortpassage.1.Read1a.2.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.3.FinishSectionCinyourworkbook.4.ReviewSectionA-CandpreviewSectionD.