大学英语自学教程

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1、洛基英语www.englishvip.com/wenkxd.htm大学英语自学教程(上册)unit16心脏病：治疗还是预防16-A.HeartDisease:TreatorPrevent?OneofthegreatestkillersintheWesternworldisheartdisease.Thedeathratefromthediseasehasbeenincreasingatanalarmingspeedforthepastthirtyyears.TodayinBritain,forexample,aboutfourhundredpeopleadaydieofheartdise

2、ase.Westernhealthcaresystemsarespendinghugesumsofmoneyonthesurgicaltreatmentofthedisease.Thisemphasisontreatmentisclearlyassociatedwiththetechnologicaladvancesthathavetakenplaceinthepasttentofifteenyears.Inthistime,moderntechnologyhasenableddoctorstodevelopnewsurgicaltechniquesandprocedures.Manyo

3、perationsthatwereconsideredimpossibleafewyearsagoarenowperformedeverydayinU.S.hospitals.Theresulthasbeenarapidincreaseinheartsurgery.Althoughthereisnodoubtthatalargenumberofpeoplebenefitfromheartsurgery,criticsofourhealth-caresystemspointoutthattheemphasisonthesurgicaltreatmentofthediseasehasthre

4、ecleardisadvantages.First,itattractsinterestandfinancialresourcesawayfromthequestionofprevention.Second,itcausesthecostsofgeneralhospitalcaretorise.Afterhospitalsbuytheexpensiveequipmentthatisnecessaryformodernheartsurgery,theymusttrytorecoverthemoneytheyhavespent.Todothis,theyraisecostsforallthe

5、irpatients,notjustthosepatientswhosetreatmentrequirestheequipment.Thethirddisadvantageisthatdoctorsareencouragedtoperformsurgery--evenonpatientsforwhomanoperationisnotatallnecessary--becausetheequipmentandsurgicalexpertiseisavailable.Afederalgovernmentofficerecentlysaidthatmajorheartsurgerywasoft

6、enper-formedeventhoughitschancesofsuccesswerelow.Inonetypeofheartsurgery,forexample,only15percentofpatientsbenefitedfromthesurgery.Intherecentpast,medicalresearchershavebeguntoemphasizethefactthatheartdiseaseisassociatedwithstress,smokingandalackofexercise,andwecanoftenreducetheriskofheartdisease

7、bypayingmoreattentiontothesefactors.Moreandmorepeoplearerealizingthatthereisaconnectionbetweenheartdiseaseandthewaytheylive.Asaresultofthisnewawareness,attitudestowardhealtharechanging.Inthepast,peopletendedtothinkthat