(新)人教版三年级数学下册第3单元-复式统计表共2课时教学课件

多媒体学习课件2024/4/1多媒体学习课件多媒体学习课件2024/3/30多媒体学习课件1Unit10Pollution

Lead-inTextExercisesHomework多媒体学习课件Unit10Pollution多媒体学习课件2Howdoyoufeelafterlisteningtothissong?2Ispollutiononeoftheseriousproblemsweface?Listentoearthsong

andanswerquestions多媒体学习课件Howdoyoufeelafterlistenin3industryfactorychimneysfacorywastepolluteair,waterandanimals

Listentothefirstparagraphandanswerthequestion:Howdoesindustrycausepollution?Text1/5多媒体学习课件industryfactorychimneys4tanker…byaccidentoiloiltank…whilebeingcleanedoutonpurposepollutesbeachesandkillseabirdsListentothesecondparagraphandanswerthequestion:Whatcausewaterpollution?(industrychimneysandwastes)Text2/5中国最大的资料库下载多媒体学习课件tanker…byaccidentoiloiltan5

Listentothethirdparagraphandanswerthequestion:Whatarethemajorcauseofairpollutioninmostdevelopedcountries?Carsgiveoutpoisonousgases.Text3/5多媒体学习课件Listentothethirdpar6Listentothefourthparagraphandanswerthequestion:Areinsecticidesalwaysgoodforus?Why?Insecticides

upsetthebalanceofnaturebykillingthefoodsupplyforbirds.harmanimalsthatfeedonthecropsText4/5多媒体学习课件Listentothefourthpa7Listentothelastparagraphandanswerthequestion:Whatcanwedotostoppollutionandprotectourenvironment?1)havepassedAnti-pollutionlaws2)removethepoisons3)

Don’tlitter.4)

saveournaturalsources3)

plantingText5/5多媒体学习课件Listentothelastpara81Factoriesmaycause_________.AbothairandwaterpollutionBonlyairpollutionConlywaterpollution2________mayresultfromthosefactoriesthatdischargeintotheriverswastecontainingpoisonouschemicals.AAirpollutionBWaterpollutionCAirandwaterpollutionBAExercises1/3多媒体学习课件1Factoriesmaycause________93Waterpollutionisdangerousbecause_________greatharmtous.ApollutedseawaterdoesBthedeadseabirdsdoCpolluteddrinkingwaterandseafooddo4Incitiesindevelopedcountries_______maybeamajorcauseofairpollution.AsmokefromrestaurantsBpoisonousgasesfromcarsCwastescontainingharmfulchemicalBCExercises2/3多媒体学习课件3Waterpollutionisdangerous105Intheworld_______pollution.ApeoplearefightingagainstBgovernmentsarenolongerunawareofthedangerofCfactorieshavestoppeddischargingwastessothattheyarenolongercausesof6Pollutionhascomeunderbettercontrol__________.AinmostcountriesBatleastinsomecountriesCinsomecountrieswhereindustryisnothighlydevelopedABExercises3/3多媒体学习课件5Intheworld_______polluti11atanker多媒体学习课件atanker多媒体学习课件12

Homework（家庭作业）1Discuss:Howtostopcarpollution？FinishtheExsintheworkbookonp73-75.多