研究生英语口语PPT

ContentsIntroduction1UUseerroneouszone2Theharmofdetergent3Marketprospect4Thedetergentiswidelyusedinourlife.IntroductionsyntheticdetergentIn1958ThedevelopmentofdetergentsoapThe20thcenturyplantashgleditsiasinensisLonglongagoNowManykindsofdetergent,uncounted.ThemaincomponentsofdetergentSurfaceactiveagentremovingstainsdissolvingImportantfunctionaladditivebleachingagentdefoamingagentsoftenerspiceThecomponentsUseerroneouszone1.Moreconcentration，moreeffective2.Morecleanifusingmixturedetergent3.Morewhite,moreclean4.Sprinklethedetergentdirectlyonthefurniture1.Moreconcentration，moreeffectiveNormally,itismosteffectivewhenthedetergentisdilutedtoproperproportion.2.MorecleanifusingmixturedetergentMixthechlorinewithaciddetergenttogether,whichmayreleasechlorinegas.3.Morewhite,morecleanfluorescentwhiteningagentisharmfultobodyskinandcauseheavyliverburden.4.SprinklethedetergentdirectlyonthefurnitureSprinklethedetergentdirectlyonthefurniturewillreducetheeffectiveandcausecorrosionoffurnitureThepotentialharmofdetergent1.Effectsofdetergentonhealth2.EffectsofdetergentonEnvironmentEffectsofdetergentonhealthDtergentcontainstimulatingchemicals，suchasfoamingagent，acid，alkali，andsoon.1.Skindamage2.Impairedimmunefunction3.IncreasedriskofleukemiaEffectsofdetergentontheenvironmentWhyhadthelakeandriverturnedgreen,muddy,andsmelledbad?Thecriminalisdetergent.EntrophicationNaturaldetergentPublicfacilities,cleaningPublicfacilities,cleaningSomeofNaturaldetergentrecommendedeggSaltsolutionvinegarricewaterlemonTheuseofnaturaldetergenteggLeathermaintenanceSaltsolutionClearjuicestainsvinegarTilecleaningricewaterWashhandslemonWashWaterdispenserProspect-Demand-BinJiang•Demandofhighstandardofliving•Demandofhealth•DemandofenvironmentalprotectionAsourstandardsoflifeskyrocket,sodoourexpectationsPeople'sincreasingemphasisonthehealthPeople'sawarenessofenvironmentalprotectionishigherProspect-data-BinJiangTheaverageannualgrowthrateof20%!Erveryonewillconsume3~4kgdetergentin2017.Prospect-direction-BinJiangEnvironmentalfriendlinessRawmaterialEasybiodegradationnon-toxic；Producehaverecyclingvalue；Detergenteasytohandlereducewasteemissionshigh-efficiencylow-costProspect-technology-BinJiangProfessionalizationWithlittleornowaterEnzyme-MicrobialDetergentSavewaterUsingmicrobialcellstowashdirtanddecomposeintonontoxicandharmlesswater-soluble.Usingaspecialformulafortableware,floor,doorsandwindows,jewelry,cars,etcPublicfacilities,cleaningPublicfacilities,cleaningConclutionDetergentagentforthebenefitofmankind,butalsoneedtopreventpollutingtheenvironment!