九年级英语上册Unit2SavingtheearthTopic2AlltheseproblemsareveryseriousSectionC仁爱版.ppt

Unit2SavingtheEarthTopic2Alltheseproblemsareveryserious.,SectionC,(1)_ofusknowshowtostopthebadbehavior.(2)Iknockedonthedoorbut_answered.(3)Someofthesebooksarebetterthan_.(4)Shewasdrivingthecarwithonehandandwipingthewindowwiththe_.(5)TheyarebeautifulbutIamlookingfor_useful.(6)Isthere_youcandotohelpher?(7)Therere5000peoplelivinghereandalmost_hashis/herowncar.(8)Hesclevererthan_Iknow.(9)Ivelooked_butIcantfindit.,Fillintheblanksusingsomething,anything,others,nobody,everyone,anybody,everywhere,none,other.,Review,None,nobody,others,other,something,anything,everyone,anybody,everywhere,Whatcanwedotoprotectourenvironment?,Giveaspeech,Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?,cities,pollute,healthproblems,factories,thelandandtheair,dead,Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?,cutdown,millionsof,takeawaytheearth,beedesert,拿走,Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?,oxygen,aspecialkindofoxygencalled“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”,theheatfromthesuncantescape,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,fewertrees,factorypollution,trafficpollution,theozonelayer,morecarbondioxide,Canyoumatchthem?,1aReadandunderstand.Lookatthefollowingpicturesandpredictthemainideaofthepassage.,ChoosesuitabletitlesforParagraphs2-6.Thenwriteitdowninfrontofeachparagraph.,Theearthis4.6billionyearsold.Wehumanshavelivedontheearthforonly35000years,butduringthisperiod,wehavechangedourplanetalotinmanyways.Somethingswevedoneareverygoodfortheearthwhilesomearebad._Allovertheworld,peoplehavecutdownmillionsoftrees.Whenitrainsorwhenthewindblows,theearthistakenaway.Forestshavebeedeserts,somanykindsofanimalsandplantsaredisappearing.,FewerTrees,A.TrafficpollutionB.FactorypollutionC.FewertreesD.TheozoneholeE.Morecarbondioxide,_Inbigcities,carsandbuseshavepollutedtheair.Nowmanypeopleincitieshavehealthproblems.,_Factorieshavealsopollutedthelandandthewater.Asaresult,manyriversandlakesarenowdead._Aroundtheearth,theresaspecialkindofoxygencalled“ozone”(O3).Itisimportanttotheearth.Butnowairpollutionisdestroyingitandmakingaverybigholeintheozonelayer.Toomuchharmfulradiationfromthesunpassesthroughtheholeandreachestheearthdirectly.Thisisverydangerousbecausethiskindofradiationcancausecancer.,TrafficPollution,FactoryPollution,TheOzoneLayer,直接地,_Carbondioxide(CO2)intheairhasincreasedalot.Itmainlyesfromburningoil,coalandwood.Thishasformedablanketaroundtheearth.Theheatfromthesuncantescapesothetemperatureisrising.Thisiscalled“thegreenhouseeffect”.Itcausestheleveloftheoceanstoriseandtheclimateoftheearthtochange.Alltheseproblemsareveryserious,sowemustdosomethingnow.,MoreCarbonDioxide,1bRead1aandpletethefollowingtasks.,2.Whatdoesourplanetmeanhere?A.Thesun.B.Mars.C.Themoon.D.Theearth.,3.Inthepassage,blanketrefersto_.A.carbondioxidearoundtheearthB.theozonelayerintheskyC.theforestsaroundtheworldD.pollutionallovertheworld,4.TheworditinParagraph5refersto_.A.CO2B.O3C.O2D.H2O,5.Whatisthebesttitleforthispassage?EnvironmentProblemsB.PollutionontheEarthC.HopefortheFutureD.TheGreenhouseEffect,Writedownonlythekeywordswhentakingnotes.,1cCompletethenotesaccordingto1a.,Retellit,carsandbusespolluteair,healthproblems,pollutelandandwater,riversandlakesdead,harmfulradiationreachestheearth,causecancer,factorypollution,ozonehole,moreCO2,2SurftheInternettocollectmoreinformationaboutenvironmentalproblemsandeffects.Thendiscusstheinformationingroupsandtakenotes.,3.Combinethekeypointsin1cand2toformashortpassageandpayattentiontotheproperlinkingwords.,Asweallknow,waterpollutionisbeingmoreandmoreserious.Somefactoriespourwastewaterintotherivers.Asaresult,itmakesthewaterdirtyandsmellterrible.Mostoffishinthewaterhavediedandwecantswiminthewater.Waterisveryimportanttohumanbeings,soweshoulddoourbesttoprotectandsaveit.Luckily,ourgovernmentistakingmeasurestoprotectthewaterfrompollution.,Youcanwriteitlikethis:,Welearn:1.Somewords:hole,form,rise2.Somephrases:takeaway,referto3.Somesentences:Alltheseproblemsareveryserious,sowemustdosomethingnow.Wecan:1.Talkabout