大学英语自学教程(中)

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1、天马行空官方博客：http://t.qq.com/tmxk_docin；QQ:1318241189；QQ群：175569632大学英语自学教程(中)16-A.HeartDisease:TreatorPrevent?OneofthegreatestkillersintheWesternworldisheartdisease.Thedeathratefromthediseasehasbeenincreasingatanalarmingspeedforthepastthirtyyears.TodayinBritain,forexample,aboutfourhundredpeopleadaydieo

2、fheartdisease.Westernhealthcaresystemsarespendinghugesumsofmoneyonthesurgicaltreatmentofthedisease.Thisemphasisontreatmentisclearlyassociatedwiththetechnologicaladvancesthathavetakenplaceinthepasttentofifteenyears.Inthistime,moderntechnologyhasenableddoctorstodevelopnewsurgicaltechniquesandprocedure

3、s.ManyopeationsthatwereconsideredimpossibleafewyearsagoarenowperformedeverydayinU.S.hospitals.Theresulthasbeenarapidincreaseinheartsurgery.Althoughthereisnodoubtthatalargenumberofpeoplebenefitfromheartsurgery,criticsofourhealth-caresystemspointoutthattheemphasisonthesurgicaltreatmentofthediseasehast

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

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

6、er-formedeventhoughitschancesofsuccesswerelow.Inonetypeofheartsurgery,forexample,only15percentofpatientsbenefitedfromthesurgery.Intherecentpast,medicalresearchershavebeguntoemphasizethefactthatheartdiseaseisassociatedwithstress,smokingandalackofexercise,andwecanoftenreducetheriskofheartdiseasebypayi

7、ngmoreattentiontothesefactors.Moreandmorepeoplearerealizingthatthereisaconnectionbetweenheartdiseaseandthewaytheylive.Asaresultofthisnewawareness,attitudestowardhealtharechanging.Inthepast,peopletende