牛津深圳版九年级下册英语课件：unit-3《the-environment》(reading)

ReadingUnit3concernatmospheretemperatureconsumerguessgreenlifelessfueln.担心；忧虑n.大气层n.温度；气温n.消费者v.猜测adj.环境保护的；赞成环境保护的adj.无生命的；无生物成长的n.燃料WordReviewcoalresultincreasesealeveldestroynaturesurfacesoilfloodhabitn.煤n.结果v.(使)增长；增多；增加n.海平面v.摧毁；毁灭n.自然界；大自然n.表面；表层n.土壤n.洪水；水灾n.习惯WordReviewproperfriendlyrecyclepurposegreenhouseeffectindangerasaresultofresultinmountainsoftakeactionmakeadifferenceadj.正确的；恰当的adj.无害的v.回收利用n.目的；用途温室效应在危险中由于造成；导致许多；大量采取行动有作用；有影响WordReviewWhathavewedonetotheearthandtheworld?1.Readtolearnaboutthemainproblemswefaceinprotectingtheenvironment.2.TolearnthenewwordsandusefulexpressionsObjectives：Words:concernatmospheretemperatureguessgreenlifelessfuelcoalresultincreasesealeveldestroynaturesurfacesoilfloodhabitproperfriendlyrecyclepurposePhrases:greenhouseeffectindangerasaresultofresultinmountainsoftakeactionmakeadifferencePatterns:1.Withoutit,theEarthwouldbethesameastheMoon—coldandlifeless.2.Cuttingdowntreesalsodestroysthehomesoftheanimalsthatliveinourforests,andcausesthesurfaceofthesoiltobeeasilydestroyedbyrain.3.Thiscanresultinfloodsandevenmoredamagetotheenvironment.4.Weshouldbedifferentfrommanyconsumersandbecome“greenconsumers”.5.Thismeansthatweshouldonlybuyanduseproductsfriendlytotheenvironment.WhathasLodone?WhatdidHitellLotodo?DoesLounderstandwhatHimeant?WhatdidHimeanwhenhetoldLotobegreener?Hehaspaintedhimselfgreen.HetoldLotobegreener.No,hedoesn’t.GettingreadyLookatthecartoonandanswer:HemeantthatLoshouldcaremoreabouttheenvironment.Lookatthefollowingpicturesandthinkaboutwhatcausestheproblems.Howmuchdoyouknowaboutthegreenhouseeffect?Thegreenhouseeffectistheprocessofthegradual(逐渐的)riseintemperatureoftheEarth’satmosphere.TheEarthisgettingwarmerasanincreaseofgasessuchascarbondioxideintheatmospheretraptheheatoftheSun.Thegreenhouseeffect温室效应Whatdoyouknowaboutthegreenhouseeffect?MatchthefirsthalfofthesentencesincolumnAwiththesecondhalfincolumnB.Writethecorrectlettersintheblanks.(P34)efbdcaCanyouguesstheresultofthegreenhouseeffect?Whatistheresultofthegreenhouseeffect?Ingroups,discussthiswithyourclassmates.(P34)A2Thegreenhouseeffectresultsin:•polaricemeltingandtheriseofsealevels•hurricanes(飓风)andotherstormsarelikelytohappenmorefrequentlyaswellasfloodsanddroughts(旱灾)•freshwaterwillbelessavailable•somediseasesspreadfaster●Plantflowers,grassortrees.●Wheneveryouvisitaparkorbeach,takeawaywhatyoubringthere—keeprubbishinabaguntilyoucanputitinadustbin.●Turnoffthelights,TVsetswhenyouleavetheroom.Thissavesalotofelectricity(电).●Turnoffthetap(水龙头)whenyoubrushyourteeth.Youcansavesomewaterbynotlettingitrun.Also,useaglasscupinsteadofapapercupbecausethissavespaper.●Keepthedoorsandwindowsclosedinwintertokeepwarmairin.Whatcanwedotoprotecttheearth?●Giveyouroldbooksandmagazinestoalibraryinsteadofthrowingthemaway.●Giveyouroldclothestopoorchildrenyouknowinsteadofthrowingthemaway..●Usebothsidesofpaper.●Stoppouringdirtywaterintotheriversorlakesnearby.●Encourageallyourfriendstodothesamethingsyoudotohelpprotecttheearth.Youdon’thavetowaituntilEarthDaytodothesethings.MakeeverydayEarthDay.1.Whatisthearticlemainlyabout?2.Whatproblemsdoesthearticlediscuss?3.Aconsumerissomeonewhobuysandusesthings.Canyouguesswhata“greenconsumer”is?Environmentalproblems.Thegreenhouseeffect,cuttingdownforestsandbadhabits.A“greenconsumer”issomeonewhoonlybuysandusesthingsfriendlytotheenvironment.Lookatthepictures,thetitle,theintroductionandthesub-headingsofthearticleonpage35.Thenanswerthequestionsbelow.(P34)Lookatthearticleonpage35andchoosethebestanswer.Thearticleisprobablyfroma(n)____.aadvertisementbposterabouttheEarthHourcenvironmentalsciencebookdcomicbookc1.Whymustpeopledosomethingtoprotecttheenvironment?2.Whatarethemainproblemspeopleface?3.Whatshouldpeopledotoprotecttheenvironment?Nowlistentothepassageandanswerthequestions.Becauseourworldisindanger.Thegreenhouseeffect,cuttingdownforestsandbadhabits.Peopleshouldbecome“greenconsumers”.Task1:Readthefirstpartandmakethefollowingsentencesintocorrectorder.()ToomuchCO2pollutestheatmosphere.()Theatmospheredoesnotlettheheatout.()Theatmosphereletsthesunlightin.()Theatmospherekeepsintoomuchheat.()ThesunlightreachestheatmosphereoftheEarth.()Thegreenhouseeffecttakesplace—theEarth’stemperatureincreases.()PeopleburnfuelssuchaspetrolandcoalandproducealotofCO2.1234657Readandfinishthefollowingtasks.Task2:Readthesecondpartandcompletethediagram.CauseEffect1Effect2Effect3Effect4Wedestroynatureby_____________________________downhugeareasofforestscutting_________________________becomesworse.Thegreenhouseeffect_______________________________________________________Thehomesoftheanimalsthatliveinourforestsaredestroyed._____________________________________________Thesurfaceofthesoiliseasilydestroyedbyrain.______takeplaceand_________________________theenvironment.FloodsevenmoredamageisdonetoTask3:Readthethirdpartandcompletethediagram.CauseEffect1Effect2Peopleoften_________________________________________,or______________________________usethingsonceandthenthrowthemthemawayleavethemonthegroundaslitter._________________________________