大学英语自学讲义中英文版.pdf

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ample,aboutfourhundredpeopleadaydieofheartdisease.
Westernhealthcaresystemsarespendinghugesumsofmo
neyonthesurgicaltreatmentofthedisease.
Thisemphasisontreatmentisclearlyassociatedwiththetec
hnologicaladvancesthathavetakenplaceinthepasttentofif
,moderntechnologyhasenableddoct

nyopeationsthatwereconsideredimpossibleafewyearsag

asbeenarapidincreaseinheartsurgery.
Althoughthereisnodoubtthatalargenumberofpeoplebene
fitfromheartsurgery,criticsofourhealth-
caresystemspointoutthattheemphasisonthesurgicaltreat
,itatt
ractsinterestandfinancialresourcesawayfromthequestio
,itcausesthecostsofgeneralhospit
3

atisnecessaryformodernheartsurgery,theymusttrytoreco
,theyraisecostsfor
alltheirpatients,notjustthosepatientswhosetreatmentreq

reencouragedtoperformsurgery--
evenonpatientsforwhomanoperationisnotatallnecessary
--

federalgovernmentofficerecentlysaidthatmajorheartsurg
erywasoftenper-

ypeofheartsurgery,forexample,only15percentofpatients
benefitedfromthesurgery.
Intherecentpast,medicalresearchershavebeguntoemph
asizethefactthatheartdiseaseisassociatedwithstress,sm
okingandalackofexercise,andwecanoftenreducetherisko
fheartdiseasebypayingmoreattentiontothesefactors.
4
Moreandmorepeoplearerealizingthatthereisaconnection