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contents•Situation•Acidrain•Ozonehole•Greenhouseeffect•Whatshouldwedo•AnEnglishsongThedevelopmentofmankinditselfhaslongbeenconfinedtoareasofeconomicdevelopment,andeconomicdevelopmentofthenaturalenvironmentandnaturalresourcestorelyonthesupportoftheproductiveforces,andinevitablythequalityoftheenvironmenthaveanegativeimpact.Thedevelopmentofhumanityhasbeenaglobalthreattotheenvironmentforthesurvivalofhumanbeings.Now.Wearenotsurewhetherwecanovercomethecrisis,maybewecannot.Thesituationhasbeensoterrible···situationAcidrainHeavyuseofenergytoenhancethehumanmaterial,butalsoca-usedunexpecteddisaster.Acidrainbringaglobaldamage.OzoneholeIn1996,anreport,whichisissuedbytheUNEP(UnitedNationsEnvironmentProgram),called“takingtheaction:theenvironmentalguidetoyouandyourcommunity”indicatedthattheozoneemptyoftheAntarcticpoleisenlargingbythespeedoftheterrestrialareaofthewholeAmericaeveryyear,whichbringsaboutthecontinuousascendingofincidenceoftheskincancerofthehumanbeingsandtherigorousdeteriorationoftheairqualityGreenhouseeffectCars’emissionsareespeciallydamaging,too—partlybecausethenitrogenoxidesfromjet-engineexhaustshelpcreateozone,apotentgreenhousegas,andpartlybecausetheprettytrailsthataircraftThereisnodoubtglobalwarmingisafact.Globalwarmingisveryseriousconsequences,suchasglaciersmelt,sealevelrise,desertification,totheecologicalsystemandtheseriousimpactonagriculturalproduction.Greenhouseeffectleadtoglobalwarming，andfloodedcoastline.likewhatshowedinthedisastermovie《Thedayaftertomorrow》Whatshouldwedoforourhome?•1stgovernment•2ndwhatweshoulddo（问答）1,提高全民族环保意识。Awakenthewholenationtotheimportanceofenvironmentalprotection.2,中国已规定并修改了有关水、空气及固体垃圾污染的有关法律，为取得持续发展打下了基础。Chinahasstipulatedandrevisedtherelevantlawsonwaterairandsolidwastepollution,layingthefoundationforachievingsustainabledevelopment.3,保护地球环境-人类共有的家园。Protecttheearth'senvironment--thehomelandofallmankind.4,保护环境识每个公民的责任与义务。Protectingtheenvironmentiseverycitizen'sresponsibilityandmoralduty.......LetustryourbestHealtheworldMakealittlespaceTomakeabetterplaceHealtheworldMakeitabetterplaceForyouandformeandtheentirehumanraceSaveitforourselvesThankyou!