大学体验英语3 第一单元教辅ppt课件

.,1,ReturntoMenu,.,2,LISTEN,TALK,.,3,Turntop.8,andletslisten.,Listentothefollowingpassageaboutglobalwarmingandtrytofillthemissingwordsintheblanks.Youwillhearthepassagethreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsoriginalidea.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblankswiththeexactwordsyouhavejustheard.Finally,whenthepassageisreadforthethirdtime,youshouldcheckwhatyouhavewritten.,.,4,Globalwarmingmaybethemostharmfulenvironmentalproblem1)_havecreated,andthemostdifficulttosolve.Oursocietyislargely2)_bythefossilfuelsthatcauseglobalwarming.Itsgrowingconsequencesecologicaldisruption,floods,droughts,diseaseareconvincingmoreandmorepeoplethatwemustcutdown3)_pollution.Manypeopleviewglobalwarmingasaproblemtoolargeandtoo4)_foranythingtheycandoto5)_.However,inreality,therearelotsofthingswecandotostop,oratleasttoreduceit.,Plantatree.Trees“6)_”carbondioxide,butonlyaslongastheyreliving.Installlow-flowshowerheadsandfaucets.Youlluselessthanhalfthewaterwithout7)_.Buyenergy-efficientelectronicsandappliances.Then,turnthemoffwhentheyrenotinuse.Reduce!Reuse!Recycle!Recyclingastackofnewspapersonly8)_willsaveagoodsizedtree.Mountalocal9)_againstglobalwarming.Educateyourcommunityabouthowtocutgreenhousegaspollution.Supportmeasuresatthenationalandlocallevelsthatincreaseenergyefficiency,andthat10)_theuseofclean,renewablesolarandwindtechnology.,Firsttime,2ndtime,.,5,Globalwarmingmaybethemostharmfulenvironmentalproblem1)_havecreated,andthemostdifficulttosolve.Oursocietyislargely2)_bythefossilfuelsthatcauseglobalwarming.Itsgrowingconsequencesecologicaldisruption,floods,droughts,diseaseareconvincingmoreandmorepeoplethatwemustcutdown3)_pollution.Manypeopleviewglobalwarmingasaproblemtoolargeandtoo4)_foranythingtheycandoto5)_.However,inreality,therearelotsofthingswecandotostop,oratleasttoreduceit.,Plantatree.Trees“6)_”carbondioxide,butonlyaslongastheyreliving.Installlow-flowshowerheadsandfaucets.Youlluselessthanhalfthewaterwithout7)_.Buyenergy-efficientelectronicsandappliances.Then,turnthemoffwhentheyrenotinuse.Reduce!Reuse!Recycle!Recyclingastackofnewspapersonly8)_willsaveagoodsizedtree.Mountalocal9)_againstglobalwarming.Educateyourcommunityabouthowtocutgreenhousegaspollution.Supportmeasuresatthenationalandlocallevelsthatincreaseenergyefficiency,andthat10)_theuseofclean,renewablesolarandwindtechnology.,Secondtime,3rdtime,.,6,Globalwarmingmaybethemostharmfulenvironmentalproblem1)_havecreated,andthemostdifficulttosolve.Oursocietyislargely2)_bythefossilfuelsthatcauseglobalwarming.Itsgrowingconsequencesecologicaldisruption,floods,droughts,diseaseareconvincingmoreandmorepeoplethatwemustcutdown3)_pollution.Manypeopleviewglobalwarmingasaproblemtoolargeandtoo4)_foranythingtheycandoto5)_.However,inreality,therearelotsofthingswecandotostop,oratleasttoreduceit.,Plantatree.Trees“6)_”carbondioxide,butonlyaslongastheyreliving.Installlow-flowshowerheadsandfaucets.Youlluselessthanhalfthewaterwithout7)_.Buyenergy-efficientelectronicsandappliances.Then,turnthemoffwhentheyrenotinuse.Reduce!Reuse!Recycle!Recyclingastackofnewspapersonly8)_willsaveagoodsizedtree.Mountalocal9)_againstglobalwarming.Educateyourcommunityabouthowtocutgreenhousegaspollution.Supportmeasuresatthenationalandlocallevelsthatincreaseenergyefficiency,andthat10)_theuseofclean,renewablesolarandwindtechnology.,Thirdtime,Checkup,.,7,Globalwarmingmaybethemostharmfulenvironmentalproblem1)_havecreated,andthemostdifficulttosolve.Oursocietyislargely2)_bythefossilfuelsthatcauseglobalwarming.Itsgrowingconsequencesecologicaldisruption,floods,droughts,diseaseareconvincingmoreandmorepeoplethatwemustcutdown3)_pollution.Manypeopleviewglobalwarmingasaproblemtoolargeandtoo4)_foranythingtheycandoto5)_.However,inreality,therearelotsofthingswecandotostop,oratleasttoreduceit.,humanbeings,powered,greenhouse,faraway,makeadifference,.,8,Plantatree.Trees“6)_”carbondioxide,butonlyaslongastheyreliving.Installlow-flowshowerheadsandfaucets.Youlluselessthanhalfthewaterwithout7)_.Buyenergy-efficientelectronicsandappliances.Then,turnthemoffwhentheyrenotinuse.Reduce!Reuse!Recycle!Recyclingastackofnewspapersonly8)_willsaveagoodsizedtree.Mountalocal9)_againstglobalwarming.Educateyourcommunityabouthowtocutgreenhousegaspollution.Supportmeasuresatthenationalandlocallevelsthatincreaseenergyefficiency,andthat10)_theuseofclean,renewablesolarandwindtechnology.,breathein,decreasingperformance,fourincheshigh,campaign,encourage,.,9,Lookatthefollowingpicturesandshareyourworrieswithyourpartnerabouttheenvironmentoftheearthweliveon.,Heated.,Sweating!,WhyistheEarthsweatingandsteaming?Doyouwanttojointhecrowdstandingbyandwatching,ortodosomethingtohelpher?,Nowletstalk.,.,10,Lookatthefollowingpicturesandshareyourworrieswithyourpartnerabouttheenvironmentoftheearthweliveon.,MixedGarbageOverflowing,SortingandRecycling!,Howdoyoudisposeoftincans,plasticbags,andusedbatteries?Doyouknowanythingaboutgarbagesortingandrecycling?,.,11,Lookatthefollowingpicturesandshareyourworrieswithyourpartnerabouttheenvironmentoftheearthweliveon.,SolarEnergyIsClean,SoIsWind!,Doyouknowanymachineorappliancethatispoweredbysolarorwindenergy?Canyoulistanyothercleanenergytechnologies?,.,12,Task1,Task2,Dialogue1,Dialogue2,.,13,Lin:IstheEarthreallygettingwarmer?John:Yes,theresnodoubtaboutit.Scientistssaythatfouryearsoutofthelasttenhavebeenthehottestsincerecordsbegan.Lin:ButwhydoesitmatteriftheEarthgetsalittlewarmer?John:Itmattersbecauseitchangesalotofthingsconcerningourlife.IftheEarthgetshotter,thiswillcausetheleveloftheseatorise.Lin:Youmeanitwillcauseflooding?John:Yeah,vastareasoftheIndiancoast,Bangladesh,Holland,andevenLondon,wouldbeunderwater.TosaynothingofbeautifulVenice.,Turntop.10,andletslistenandread.,Dialogue1:TheEffectsofGlobalWarming,.,14,Lin:Thatsterrible!Andwilltherebeanyothereffects?John:Yes,therewillbemany.Theglobalweathersystemwillchangetoo,causingtoomuchraininsomeareasandtoolittleinothers.Lin:Canwedosomethingaboutit?John:Thererealotwecando.Firstofall,wemustreducetheamountofpollutioncomingfromindustriesandcarsandstopdeforestation.Otherwise,wewillsufferfromourcarelessactions.,Dialogue1:TheEffectsofGlobalWarming,.,15,Dialogue2:TheEnvironmentallyInformed,Judy:Ah,youreback.Wouldyoulikemetorunabathforyou?Ming:Ohno.Illtakeashower.Bathsuseuptoomuchwater.Abathusesup3timesmorewaterthanashower,youknow.Judy:Thatsincredible!Ming:Yes,itsafact.Andifyouliketokeepthewaterrunningwhileyoubrushyourteeth,youwastefrom25to45literseverytimeyoubrush.ThiswayafamilyoffourwouldfillanOlympicpoolbythetimetheyoungestchildreaches21.Judy:Wow!Here,haveacigarette.,Turntop.10,andletslistenandread.,.,16,Ming:Noway!Notonlyissmokingbadforyourhealth,itsthesourceofsocialproblemsindevelopingcountriesbecause,sinceprofitfromtobaccoisveryhigh,tobaccohastakenupthebestfood-growingareas,leadingtofoodshortages.Judy:SoforeverycigaretteIsmoke,someoneisstarving?Ming:Andmanytobaccoplantersusewoodtodrytobaccoleaves.Youknowthatwhenyoudownatree,youretakinganothersteponyourwaytoerosion.Judy:Anderosionisalsothebeginningofhunger.OK,nomorecigarettesandonlyquickshowers.,Dialogue2:TheEnvironmentallyInformed,.,17,Adebatebetweenforeignvisitors,whohavejustcometovisitChina,andtheirChinesefriends,collegestudents,abouttheadvantagesanddisadvantagesofbuildingtheThreeGorgesDam.,Situation,RoleA,RoleB,.,18,Theforeignvisitors,believethatbuildingsuchalargedamwillbringaboutsomedamagestotheecosystem,henceitwillbringmoredisadvantagesthanadvantages.,Adebatebetweenforeignvisitors,whohavejustcometovisitChina,andtheirChinesefriends,collegestudents,abouttheadvantagesanddisadvantagesofbuildingtheThreeGorgesDam.,Situation,RoleA,RoleB,Reference,.,19,TheChinesestudentsarguethattheprojectwillpreventseriousfloodingandreducecoalburningforelectricity,henceitinvolvesmoreadvantagesthandisadvantages.,Adebatebetweenforeignvisitors,whohavejustcometovisitChina,andtheirChinesefriends,collegestudents,abouttheadvantagesanddisadvantagesofbuildingtheThreeGorgesDam.,Situation,RoleA,RoleB,Reference,.,20,A:So,weveheardthatthereareplanstobuildamassivedamintheThreeGorgesareaoftheYangtze.B:Thatsright.Infact,theyvealreadystartedthepreliminaryconstruction.A:Butwhatabouttheenvironmentalimplications?B:Whatdoyoumean?A:Well,thedamagetotheeco-systemIsntitgoingtomeanfloodingagreatbigarea,forcingpeopletore-locateandimmersingthesitesofspecialarchaeologicalinterest?B:Iseewhatyoumean,butthatswhatyouvereadintheWesternpressandyouveonlyreadhalfofthestory.,Task1,.,21,A:Howsthat?B:Theresnodoubtthattheprojectdoeshaveenvironmentalimplicationsbutonthewholethebenefitsoutweighthedisadvantages.Duringtherainyseason,theYangtzeoftenfloodsanditcausesmassesofdamage,destroyinghomes,cropsandsoon.Thedamwillpreventthisfloodingandso,whileitstruethatsomepeoplehavetomove,manypeoplewillreapthebenefits.Whatsmore,thedamwillprovidehydro-electricitytomanyhomestherebyreducingpollutionfromcoalburningpowerplants.,Task1,.,22,A:Whataboutthefish?B:Thefish?A:Arenttheresomebreedsoffishwhichswimuprivertospawn（产卵）?B:Weretalkingaboutsavinghumanlivesandlivelihoods,andyoureworriedaboutthefish!Asitgoes,Iveheardofotherdamswheretheyvebuiltspeciallittlegatesorsomethinglikethatwhichallowthefishtopassthrough.A:AndChinasgoingtoloseoneofitsmostfamoussitesB:Well,notreally.Someofthesiteswilllookgranderwithahigherwaterlevel.Whydontyougoandseethemnowwhileyoustillhavethechance.YoucanrevisitthemtomakeacomparisonaftertheDamisbuilt.,Task1,.,23,AChinesestudentdiscussessomeresource-savingandenvironmentalprotectiontechniqueswithherhostmotherinBritain.,Situation,RoleA,RoleB,.,24,SupposeyourestudyinginauniversityinLondonandstayingwithaBritishfamily.Youdonotunderstandwhythehostfamilyhastheair-conditioningonalmostallthetime.,AChinesestudentdiscussessomeresource-savingandenvironmentalprotectiontechniqueswithherhostmotherinBritain.,Situation,RoleA,RoleB,Reference,.,25,SupposeyoureBritish.Youthinkitisnecessarytokeepaconstanttemperatureinthehouse,foritmakesyouandyourfamilymorecomfortable.,AChinesestudentdiscussessomeresource-savingandenvironmentalprotectiontechn