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1、-9-高考专题阅读理解（社会生活类）03七、Howeverwealthywemaybe,wecanneverfindenoughhoursinthedaytodoeverythingwewant.Economicsdealswiththisproblemthroughtheconceptofopportunitycost,whichsimplyreferstowhethersomeone'stimeormoneycouldbebetterspentonsomethingelse.Everyhourofourtimehasaval
2、ue.Foreveryhourweworkatonejobwecouldquiteeasilybedoinganother,orbesleepingorwatchingafilm.Eachoftheseoptionshasadifferentopportunitycost—namely,whattheycostusinmissedopportunities.Sayyouintendtowatchafootballmatchbuttheticketsareexpensiveanditwilltakeyouacoupleofhour
3、stogettoandfromthestadium.Whynot,youmightreason,watchthegamefromhomeandusetheleftovermoneyandtimetohavedinnerwithfriends?This—thealternativeuseofyourcashandtime—istheopportunitycost.Foreconomists,everydecisionismadebyknowledgeofwhatonemustforgo—intermsofmoneyandenjoy
4、ment—inordertotakeitup.Byknowingpreciselywhatyouarereceivingandwhatyouaremissingouton,yououghttobeabletomakebetter-informed,morereasonabledecisions.Considerthatmostfamouseconomicruleofall:there'snosuchthingasafreelunch.Evenifsomeoneofferstotakeyououttolunchforfree,th
5、etimeyouwillspendintherestaurantstillcostsyousomethingintermsofforgoneopportunities.Somepeoplefindtheideaofopportunitycostextremelydiscouraging:imaginespendingyourentirelifecalculatingwhetheryourtimewouldbebetterspentelsewheredoingsomethingmoreprofitableorenjoyable.Y
6、et,inasenseit'shumannaturetodopreciselythat—weassesstheadvantagesanddisadvantagesofdecisionsallthetime.Inthebusinessworld,apopularphraseis"valueformoney."Peoplewanttheircashtogoasfaraspossible.However,anotherisfastobtaininganadvantage:"valuefortime."Thebiggestrestric
7、tiononourresourcesisthenumberofhourswecandevotetosomething,sowelooktomaximizethereturnwegetonourinvestmentoftime.Byreadmgthispassageyouaregivingoverabitofyourtimewhichcouldbespentdoingotheractivities,suchassleepingandeating.Inreturn,however,thispassagewillhelpyoutoth
8、inklikeaneconomist,closelyconsideringtheopportunity-9--9-costofeachofyourdecisions.58.Accordingtothepassage,theconceptof"opportunit
