Water-Pollution水污染英文说课

Water_Pollution水污染英文说课WaterPollution

introductionWaterpollutionisthecontaminationofwaterbodies(e.g.lakes,rivers,oceans,aquifersandgroundwater).Waterpollutionoccurswhenpollutantsaredischargeddirectlyorindirectlyintowaterbodieswithoutadequatetreatmenttoremoveharmfulcompounds.Waterpollutionisamajorglobalproblemwhichrequiresongoingevaluationandrevisionofwaterresourcepolicyatalllevels(internationaldowntoindividualaquifersandwells).Ithasbeensuggestedthatitistheleadingworldwidecauseofdeathsanddiseases,andthatitaccountsforthedeathsofmorethan14,000peopledaily.AllaboutWaterpollution2.influence3.solution1.CauseNowadays,waterpollutionisdeteriorating.Rivers,lakesandevenoceansallovertheworldarebecomingpollutedbygarbageanddangerouschemicals.OilandotherChemicalscankillfishandmakewaterunsafefordrinking.

Beforewethinkaboutwhatshouldwedotosolvethisproblem,weshouldfirstknowwhatcausetheproblem.

Cause1.Naturalpollution

Duetothedissolutionofgeological,atmosphericprecipitationleaching,erosionontheground,mixthevariouspollutantsintothewater因地质的溶解作用，降水对大气的淋洗、对地面的冲刷，挟带各种污染物流入水体而形成2.Man-madepollutionindustrialwastewater(工业废水)Dailylifesewage(生活污水)Pesticideandfertilizerpollution（农业化肥污染）Thesedodamagetothequalityofwater.BACKWaterPollution

distributionWaterpollutionisoneofthemostseriousproblemsthatmankindfacestoday.1.Forbusinessorindustry,itaffectsproducts’quality,increasedcorrosionofproducts,andsoon.2.Forindividual,itdoesdamagetothehuman’shealthy.Therearemanyinfluencethatwecan’tdescribethembywords.SoIwillshowyousomepictures.InfluenceDischargingsewageintowaterWaterhyacinth水葫芦RedtidereasonsofformredtideWatereutrophicationMeteorologicalandhydrologicalandphysicalandchemicalpropertiesoftheseaDamagesofredtideDamageHarmtohuman'shealthDestructionofMarinefisheryresourcesandaquaticproductsHarmtohumanhealthThegarbageinwaterBackWhat

canWeDo?WaterPollutionStopPollutionEnvironmentalProtectionWaterConservationEveryonewantstoreducepollution.Butthepollutionproblemisascomplicatedasitisserious.WhatshouldwedotosolvethisproblemGradually?SolutionForgovernment1Toestablishtheurbansewagetreatmentsystem(城市污水处理系统的建立)2TorestructurtheIndustrial（调整产业结构）3.Todevelopthenewwatersources4.Tostrengthentheplanningandmanagementofwaterresources5.Tocontroltheagriculturalnon-pointsourcepollution

（控制农业面源污染）ForBusinessToreducewaterconsumption(减少耗水量)Tobuyequipmentofsewagetreatment(买污水处理设备)Don‘tdischargesewageintowater.(不要乱排污水)4.Toestiblishthe

waterrecyclingsystemForindividual1.Don’tusecleanerconcludePollution.2.Don’tthrowthegarbageintotheriverorsea.3.TellthepersonaroundyoutoprotectthewaterLegislation: JustlikethenewTrafficLawsactedin2013; Strengthenthepunishmentoftheenterprisesorindividualswhohavepolluted.WaterPollution

StopPollutionWastewatertreatment: AnydischargeofwastewaterintoanywaterbodymustcomplywiththeregulationsandstandardsoftheStateforradioactiveprotection.WaterPollution

StopPollutionSaveWaterandReducetheWasteofWater:

1.Turnoffthewatertapwhenyouleave. 2.Washingclothesmanuallyinsteadofwashingmachine. 3.Collecttherainningwaterwhenraining. 4.Donotplaywaterforfun. 5.Choosetheequipmentlabeled'watersaving'. 6.Reducethetimeshavingbath.WaterPollution

WaterConservationWaterPollution

WaterConservationWaterPollution

WaterConservationWorldWaterDayhasbeenobservedon22Marchsince1993whentheUnitedNationsGeneralAssemblydeclared22MarchasWorldDayforWater

WaterPollution

WorldWaterDayThemesofwaterdaybyyears

2012:WaterandFoodSecurity:TheWorldisThirstyBecauseWeareHungry水与粮食安全2011:Waterforcities:respondingtotheurbanchallenge“城市用水：应对都市化挑战”2010:CleanWaterforaHealthyWorld保障清洁水源，创造健康世界2009:TransWatersSharewater,shareopportunities跨界水——共享的水、共享的机遇2008:Sanitation涉水卫生2007:CopingWithWaterScarcity水利发展与