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1、职称英语考试卫生类常考的概括大意精选(2)2010-2-4 16:13页面功能【字体：大中小】【打印】【关闭】 FactsaboutStroke 1 Every45seconds,someoneinAmericahasastroke.Every3.1minutes,someonediesofone.Strokekilledanestimated167,661peoplein2000andisthenation'sthirdleadingcauseofdeath,rankingbehinddiseasesofthehear
2、tandallformsofcancer.Strokeisaleadingcauseofserious,long-termdisabilityintheUnitedStates. 2 Strokeisatypeofcardiovascular（心血管的）disease.Itaffectsthearteries（动脉）leadingtoandwithinthebrain.Astrokeoccurswhenabloodvesselthatcarriesoxygenandnutrients（营养物）tothebrainiseit
3、herblockedbyaclot（凝块）orbursts.Whenthathappens,partofthebraincannotgettheblood（andoxygen）itneeds,soitstartstodie. 3 Thebrainisanextremelycomplexorganthatcontrolsvariousbodyfunctions.Ifastrokeoccursandbloodflowcan'treachtheregionthatcontrolsaparticularbodyfunction,t
4、hatpartofthebodywon'tworkasitshould.Ifthestrokeoccurstowardthebackofthebrain,forinstance,it'slikelythatsomedisabilityinvolvingvisionwillresult.Theeffectsofastrokedependprimarilyonthelocationoftheobstruction（阻塞）andtheextentofbraintissueaffected. 4 TheAmericanStroke
5、Associationhasidentifiedseveralfactorsthatincreasetheriskofstroke.Themoreriskfactorsapersonhas,thegreaterthechancethatheorshewillhaveastroke.Someoftheseyoucan'tcontrol,suchasincreasingage,familyhealthhistory,race,andpriorstroke.Butyoucanchangeortreatotherriskfactor
6、stoloweryourrisk.Factorsresultingfromlifestyleorenvironmentcanbemodifiedwithahealthcareprovider'shelp.Someoftheseinclude:highbloodpressure,currentsmoking,heartdisease,andhighredbloodcellcount. 5 Astrokecanhappentoanyoneatanymoment.Infactabout600,000peoplehavestrok
7、eseveryyear.Formanyyears,therewasnohopeforthosesufferingastroke.However,recentbreakthroughshaveledtonewtreatments.Forthetreatmentstowork,thepersonmustgettoahospitalimmediately. 23.Paragraph2__________. 24.Paragraph3__________. 25.Paragraph4__________. 26.Paragr
8、aph5__________. A Effectsofastroke B AnnualcostofstrokeintheUS C Definitionanddescriptionofastroke D Breakthroughsintreatment E Riskfactorso
