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高中英语 Module2 No drugs 课件外研必修2.ppt

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INTRODUCTIONVocabularyandspeakingGeneraldescriptionofcommondrugs◆Cocaine[可卡因]TypeofDrug:StimulantFact:derivedfromtheleavesofthecocabushthatgrowsinthemountainousregionofBoliviaandPeru.Itissoldonthestreetsasafinewhitepowder.Effect:Bodyactuallyforgetstosleepatbeginninglaterpersonexperiencesextremefatigueexhaustionanddepressionbacterialinfectionsofbrainandheart.◆Heroin[海洛因]TypeofDrug:NarcoticFact:derivedfromtheopiumpoppythatisgrownillegalinsomeareasinSouthernAsiatheMiddleEastMexicoandColombia.TodaynomedicalusesofHeroinatall.Effect:flu-likesymptoms-Nauseavomitingeuphoriacrampsdiarrhearunnynosetearyeyessweatingweakness◆Marijuana[大麻]TypeofDrug:HallucinogenFact:Comesfrompartsofthehempplantwhichcontains400knownchemical.Marijuanacontinuestobeproventocontainhigherlevelsofcancer-causingchemicalsthanTobacco!▲Effect:①whitebloodcells:reductionofstrengthofimmunesystem.②lungs:causeasthmainfectionsetc.③brain:decreaseabilitytoconcentrateshorttermmemorybadvisionirregularsleeppatternsmoodswings.lackofinterestsinpastorfuture.◆Tobacco(nicotine)[烟草][尼古丁]TypeofDrug:StimulantFact:Tobaccocontainsmainlyof2substances:①Nicotine:addictivestimulant②Tar:yellowishbrownfluidwhichcausescancer▲Effect:①physical:cancerheartdiseasestrokestomachulcer②psychological:anxietysleepdisturbancesnervousnessheadachesMarijuana[大麻]bronchitiscancercigarettedeathdieheartdiseaseinjuredtobacco1.theendoflife___________2.stopliving___________3.twothingssomepeoplesmoke__________________4.threeillnesses_