多媒体学习课件.ppt

基本版多媒体学习课件Unit10,Unit10PollutionLead-inTextExercisesHomework,Howdoyoufeelafterlisteningtothissong?2Ispollutiononeoftheseriousproblemsweface?,Listentoearthsongandanswerquestions,industry,factorychimneys,facorywaste,polluteair,waterandanimals,Listentothefirstparagraphandanswerthequestion:Howdoesindustrycausepollution?,Text1/5,tankerbyaccident,oil,oiltankwhilebeingcleanedoutonpurpose,pollutesbeachesandkillseabirds,Listentothesecondparagraphandanswerthequestion:Whatcausewaterpollution?,(industrychimneysandwastes),Text2/5,中国最大的资料库下载,Listentothethirdparagraphandanswerthequestion:Whatarethemajorcauseofairpollutioninmostdevelopedcountries?,Carsgiveoutpoisonousgases.,Text3/5,Listentothefourthparagraphandanswerthequestion:Areinsecticidesalwaysgoodforus?Why?,Insecticides,upsetthebalanceofnaturebykillingthefoodsupplyforbirds.,harmanimalsthatfeedonthecrops,Text4/5,Listentothelastparagraphandanswerthequestion:Whatcanwedotostoppollutionandprotectourenvironment?,1)havepassedAnti-pollutionlaws2)removethepoisons3)Dontlitter.4)saveournaturalsources3)planting,Text5/5,1Factoriesmaycause_.AbothairandwaterpollutionBonlyairpollutionConlywaterpollution2_mayresultfromthosefactoriesthatdischargeintotheriverswastecontainingpoisonouschemicals.AAirpollutionBWaterpollutionCAirandwaterpollution,B,A,Exercises1/3,3Waterpollutionisdangerousbecause_greatharmtous.ApollutedseawaterdoesBthedeadseabirdsdoCpolluteddrinkingwaterandseafooddo4Incitiesindevelopedcountries_maybeamajorcauseofairpollution.AsmokefromrestaurantsBpoisonousgasesfromcarsCwastescontainingharmfulchemical,B,C,Exercises2/3,5Intheworld_pollution.ApeoplearefightingagainstBgovernmentsarenolongerunawareofthedangerofCfactorieshavestoppeddischargingwastessothattheyarenolongercausesof6Pollutionhascomeunderbettercontrol_.AinmostcountriesBatleastinsomecountriesCinsomecountrieswhereindustryisnothighlydeveloped,A,B,Exercises3/3,atanker,H