下面小编跟大家一起了解英语四级阅读真题及答案讲解，希望对大家的学习有所帮助。

PassageTwoQuestions51to55arebasedonthefollowingpassage.

PepsiCoistospendbillionsofdollarstodevelopdrinksandsnacksandreformulateexistingoneswithlowersugar,saltandfat,asconsumersdemandhealthieroptionsandregulatorypressureintensifiesamidanobesityepidemic（流行病）.

ThemakerofMountainDewandGatoradehasbeenoneoftheearliermoversintheindustrytoofferproductswithreducedlevelsofunhealthyingredients-PepsiCoclaimsapacketofitschipsnowcontainslesssaltthanasliceofwhitebread.However,itsnew10-yearplanmakesclearitbelievesitstillhasalongwaytogo.

Shiftingeatinghabits,includingasharpdropinconsumptionofsparklingdrinks,haveforcedradicalchangeontheindustry.Butthoseshiftshaveyettobereflectedinrecordobesitylevels,whichstandat36.5%overallintheUS.

IndraNooyi,PepsiCochairman,saidtheplantomakeitsproductshealthierwasimportantforthecompany'sgrowth.Butonthesubjectofobesity,shepointedoutthatconsumers'lifestyleshavechangedsignificantly,withmanypeoplebeingmoresedentary（久坐不动的）notleastbecausemoretimeisspentinfrontofcomputers.ShesaidPepsiCo'scontributionwastoproducehealthiersnacksthatstilltastedgood.

"Societyhastochangeitshabits,"sheadded."Wecan'tdomuchtoaltersedentarylifestyles,butwecanprovideconsumerswithgreat-tastingproducts,lowinsalt,sugarandfat.Inthepastwehadtohaveatastetrade-off.Butwe'rebreakingthattrade-off."

PepsiCo'splanforitsfoodsanddrinksisbasedonguidelinesfromtheWorldHealthOrganisation,whichlastweekbackedusingtaxesonsparklingdrinkstoreducesugarconsumption.Initiativesalsoincludeeffortstoreduceitsenvironmentalimpact,waterconsumptionandmaterialsusedinpackagingby2025.

PepsiCodidnotsayexactlyhowmuchitplannedtoinvesttoreachitsgoals.However,DrMehmoodKhan,chiefscientificofficer,saidthecompanyhaddoubledresearchanddevelopmentspendinginthepastfiveyearsandwas"committedtosustaininginvestment",addingthatcompaniescannotcost-cuttheirwaytoincreasingsales.PepsiCo'sresearchanddevelopmentbudgetin2015was$754million.

51.WhyisPepsiComakingapolicychange?A)Towinsupportfromthefederalgovernment.B)Tobemorecompetitiveintheglobalmarket.C)Tosatisfythegrowingneedsforhealthyfoods.D)Toinvestmorewiselyinthesoftdrinkindustry.52.WhatdoesPepsiCothinkitwillhavetodointhefuture?A)Investmoretodevelopnewsnacks.B)ReducelevelsofobesityintheUS.C)Changeconsumers'eatinghabits.D)Keeponimprovingitsproducts.58.WhydoesPepsiCoplantoalteritsproducts,accordingtoIndraNooyi?A)Toensurethecompany'sfuturedevelopment.B)Toadapttoitscustomers'changedtaste.C)Tohelpimproveitsconsumers'lifestyles.D)Tobreakthetrade-offinitsproductdesign.54.WhatdoesIndraNooyisayabouttheobesityepidemic?A)Itismainlycausedbyoverconsumptionofsnacks.B)Itresultsfromhighsugarandsaltconsumption.C)Itisattributabletopeople'schangedlifestyles.D)Ithasalottodowithlongerworkinghours.55.WhathasPepsiCobeendoingtoachieveitsobjective?A)StudyingWHO'sguidelines.B)Increasingitsresearchfunding.C)Expandingitsmarketoverseas.D)Cuttingitsproductioncosts.