高中英语 Book 7 Unit 2 Global Warming课件 冀教版选修7 课件VIP免费

UnitTwoGlobalWarmingTheearthisourmostpreciousresource.Itgivesuslife;itiswherewelive.Whatwilltheworldlikeinahundredyears?WhilescientistsmightdisagreeabouttheeffectsOfglobalwarming,theyagreethatitishappening,andthatitwillchangethefaceoftheplanet.Cheattheearthandtheearthwillcheatyou.——ChineseProverbThebeautifulearthThebeautifulearthisourhome.isourhome.DoyoulovetoliveDoyoulovetolivehere?here?garbagedeforestationdesertificationStarvationAirpollutiondeforestationWaterpollutionTheareaofdesertisgrowing.desertificationtoomanysheepandcattleallthegrassbeeatengrassnevergrowagain;thelandbecomedeserttreesbecutdownnothingtohold…soilbeblownawaysoilbewashedaway…treesbedestroyedfishbekilledsmogmostseriousproblemsWaterpollutionTrash/GarbageAirPollutionDeforestationDesertificationStarvationAfterseeingthepictures,doyoustillenjoylivingontheearth?Readthepassageandtellthemainideaofthedialogue.Debatesaboutthereasonsfortheglobewarming.TrueorFalseorINP1.TheplayissetinBeijing,whereaninternationalconferenceonclimatechangeisbeingheld.2.ScientistNo.1isoptimistic,andScientistNo.2ispessimistic,aboutglobewarming.3.ScientistNo.2believesthatwehavemismisreadandmismisinterpretedchangesintemperature.4.SmokestackIndustriesarefromHongKong.5.Carbondioxidecomesfromfactories.6.Theplaytellsusthatwearesafe,thattreesarecontinuingtogrow,andthattheearthwilllastmillionsofyears.FalseFalseTrueINPTrueFalseReadandlookforinformation:1.ListthreethingsScientistNo.1mentionedtosupportherideathatweareindanger.●Industrialactivitybyhumansisproducingmuchpollution.●Asortofgreenhousenowsurroundstheearth.Thegreenhouseallowsthesun’srayin,butpreventharmfulgasesfromescaping.●Thewarmweatherwillcausebigchangesinforestryandagriculture2.ListfourthingsScientistNo.2mentionedinsupportofhisideathatthingsarenotanyworsethantheywere.●Manyfactorsarecausingtheearth’stemperaturetorise.●Mostofourtemperature-measuringdevicesarelocatedincities,whichhavemillionsofpeopleandcreatedtheirown“heatislands”.●Thismightexaggeratetemperaturereading.●Evenifclimatewarmingdoesoccuraspredicted,itwillnotbethefirsttimeintheearth’shistory.3.ThemainideaofwhatSmokestackIndustriessaidis:●Ineedcoal/oil(fue,energy)●4.ThemainideaofwhatAutomobilesaidis:5.ThemainideaofwhattheEarthsaidis:●Ineedgasandoilafterall.Iexpecttobehereforalongtime,andIneedtobetakencareof.discussion1.Howdoesthegreenhouseeffectdevelop?2.Whatroledotreesplayinachievingourenvironmentalbalance?Languagepoints:1.sb.bebelievedtobe/do…Itisbelievedthat…Itisreportedthatanotherman-madesatellitehasbeenputintoorbit.believed/said/reported/considered/thought/supposed/known/expected/announced/decided/declared/understood/predicted预计Anotherman-madesatelliteisreportedtohavebeenputintoorbit.2.…ifnotcenturies.Thefluisbelieved___byvirusesthatliketoreproduceinthecellsinsidethehumannoseandthroat.A.causingB.tobecausedC.beingcausedD.tohavecausedIfnecessary,youcanusemycar.Ifindoubt,askapoliceman.Ifleftuntreated,hisillnesscouldresultinblindness.ifnot/ifany/ifever/ifsoI’llgoifyou’regoing---Ifnot,I’dratherstayathome.(要不)Theyknewtheyhadtosavethetrees.Ifnot,theywouldhavenowordatall.(不然)Therearefewpeoplenowadays,ifany,whorememberhim.Sheseldom,ifever,goestothecinema.(几乎;即使…也)3.bereleasedby…v/n放开,释放;免除,解除Shedidn`tstruggle,releasingherhands.…没有透露…Thelatestdevelopmentshavejustbeenreleasedtothe...