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高中英语Module2Nodrugs课件外研版教材必修2课件.ppt

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INTRODUCTIONVocabularyandspeakingGeneraldescriptionofcommondrugs◆Cocaine[可卡因]TypeofDrug:StimulantFact:derivedfromtheleavesofthecocabushthatgrowsinthemountainousregionofBoliviaandPeru.Itissoldonthestreetsasafinewhitepowder.Effect:Bodyactuallyforgetstosleepatbeginning,laterpersonexperiencesextremefatigue,exhaustionanddepression,bacterialinfectionsofbrainandheart.◆Heroin[海洛因]TypeofDrug:NarcoticFact:derivedfromtheopiumpoppythatisgrownillegalinsomeareasinSouthernAsia,theMiddleEast,Mexico,andColombia.Today,nomedicalusesofHeroinatall.Effect:flu-likesymptoms-Nausea,vomiting,euphoria,cramps,diarrhea,runnynose,tearyeyes,sweating,weakness◆Marijuana[大麻]TypeofDrug:HallucinogenFact:Comesfrompartsofthehempplantwhichcontains400knownchemical.Marijuanacontinuestobeproventocontainhigherlevelsofcancer-causingchemicalsthanTobacco!▲Effect:①whitebloodcells:reductionofstrengthofimmunesystem.②lungs:causeasthma,infectionsetc.③brain:decreaseabilitytoconcentrate,shorttermmemory,badvision,irregularsleeppatterns,moodswings.lackofinterestsinpastorfuture.◆Tobacco(nicotine)[烟草][尼古丁]TypeofDrug:StimulantFact:Tobaccocontainsmainlyof2substances:①Nicotine:addictivestimulant②Tar:yellowishbrownfluidwhichcausescancer,▲Effect:①physical:cancer,heartdisease,stroke,stomachulcer, ②psychological:anxiety,sleepdisturbances,nervousness,headachesMarijuana[大麻]bronchitiscancercigarettedeathdieheartdiseaseinjuredtobacco1.theendoflife___________ 2.stopliving___________ 3.twothingssomepeoplesmoke__________________4.threeillnesses__________________________ 5.hurt_______________________READINGANDVOCABULARYReadtheopeningparagraphsoftwodifferentarticlesanddecidewhatthetopicofeacharticleis.Choosethetopicfromthislist.AdrugAddictandHisStory DangerousActivitiesofTeenagers TheDangersofUsingCocaineREADINGANDVOCABULARYIfadrugisaddictive,doesitmeanthat (a)youcaneasilystoptakingit (b)youcannotstooptakingit?2.Doespowerfulmean (a)verystrong(b)veryweak? Ifsomethingincreases,doesit (a)getbigger(b)getsmaller? 4.Isadrugdealersomeonewho (a)