2019年12月英语六级浏览真题及答案 第2套 段落匹配.docx

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1、2019年12月英语六级浏览真题及答案第2套段落匹配HowMuchProteinDoYouReallyNeed?A)Themarketingistempting:Getstrongermusclesandhealthierbodieswithminimaleffortbyaddingproteinpowdertoyourmorningshakeorjuicedrink.Orgrabaproteinbaratlunchorforaquicksnack.Today,youcanfindproteinsupplementseverywhere-onlineoratthepharmacy,grocer

2、ystoreorhealthfoodstore.Theycomeinpowders,pillsandbars.Withmorethan$12billioninsalesthisyear,theindustryisboomingand,accordingtothemarketresearchcompany,GrandViewResearch,isontracktosellbillionsmoreby2025.Butdowereallyneedallthissupplementalprotein?Itdepends.Therearepros,consandsomeotherthingstocons

3、ider.B)Forstarters,proteiniscriticalforeverycellinourbody.Ithelpsbuildnails,hair,bonesandmuscles.Itcanalsohelpyoufeelfullerlongerthaneatingfoodswithoutprotein.And,unlikenutrientsthatarefoundonlyinfewfoods,proteinispresentinallfoods.ThetypicalAmericandietisalothigherinproteinthanalotofusthink,saysreg

4、istereddietitianAngelaPipitone.Itsinfoodsmanyofusexpect,suchasbeef,chickenandothertypesofmeatanddairy.Butitsalsoinfoodsthatmaynotcomeimmediatelytomindlikevegetables,fruit,beansandgrains.C)TheU.S.governmentsrecommendeddailyallowance(RDA)fortheaverageadultis50to60gramofproteinaday.Thismaysoundlikealot

5、,butPipitonesays:Wegetbitsofproteinhereandthereandthatreallyaddsupthroughouttheday.Take,forexample.breakfast.Ifyoueattwoeggstoppedwithalittlebitofcheeseandanorangeontheside,youalreadyhave22gramsofprotein.Eachegggivesyou7grams,thecheesegivesyouabout6gramsandtheorange-about2grams.Addalunchofchicken,ri

6、ceandbroccoli(西兰花),andyouarealreadyovertherecommended50grams.YoucangetenoughproteinandmeettheRDAbeforeyouevengettodinner,saysPipitone.D)Soifitssoeasytogetyourproteininfood,whyaddmoreintheformofpowders,snackbarsoraboostatyourlocaljuicebar?Noneedto,saysPipitone,because,infact,mostofusalreadygetenoughp

7、roteininourdiet.Wholefoodsarealwaysthebestoptionratherthanaddingsupplements,thesays,notingtheFDAdoesnotregulatesupplementsasrigorouslyasfoodsordrugs.Sotherecouldbelessprotein,moresugarandsomeadditivesyouwouldntexpect,suchascaffeine(咖啡因).E)Ifyouareconsideringasupplement,readthelistofingredients,shesa

8、ys,althoughthisisnotalwaysreliable.Iveseenveryexpensiveproteinsupplementsthatclaimtobehighqualitybuttheymightnotreallybebeneficialfortheaveragehealthyadult,shesays.Itcouldjustbeawasteofmoney.F)Buttherearecertainsituationsthatdowarrantextraprotein.Anytimeyourerepairingorbuildingmuscle.Pipitonesays,su

9、chasifyoureanextremeenduranceathlete,trainingforamarathon,oryoureabodybuilder.Ifyouremoderatelyexercisingfor150minutesaweek,astheCentersforDiseaseControlandPreventionrecommends,orlessthanthat,youreprobablynotanextremeathlete.Extremeathletesexpendlotsofenergybreakingdownandrepairingandbuildingmuscles

10、.Proteincangivethemtheedgetheyneedtospeedthatprocess.G)Veganscanbenefitfromproteinsupplementssincetheydonoteatanimal-basedproteinsourceslikemeat,dairyoreggs.And,forsomeonealwayson-the-gowhomaynothavetimeforameal,aproteinsnackbarcanbeagoodoptionforoccasionalmealreplacement.Also,individualsrecoveringf

11、romsurgeryoraninjurycanalsobenefitfromextraprotein.So,too,canolderpeople.Ataroundage60,musclesreallystarttobreakdown,saysKathrynStarr,anagingresearcher,andbecauseofthat,theproteinneedsofanolderadultactuallyincrease.H)Infact,alongwithhercolleagueConnieBales.Starrrecentlyconductedasmallstudythatfoundt

12、hataddingextraproteinfoodstothedietofobeseolderindividualswhoweretryingtoloseweightstrengthenedtheirmuscles.Participantsinthestudywereseparatedintotwogroups-onegroupwasaskedtoeat30gramsofproteinpermealintheformofwholefoods.Thatmeanttheywereeating90gramsofproteinaday.Theothergroup-thecontrolgroup-was

13、putonatypicallow-caloriedietwithabout50to60gramsofproteinaday.Aftersixmonths,researchersfoundthehighproteingrouphadsignificantlyimprovedtheirmusclefunction-almosttwiceasmuchasthecontrolgroup.Theywereabletowalkfaster,hadimprovedbalance,andwerealsoabletogetupoutofachairfasterthanthecontrolgroup.Starrs

14、ays.All67participantswereover60yearsofage,andbothgroupslostaboutthesameamountofweight.I)Starrisrowlookingintowhetherhigh-proteindietsalsoimprovethequalityofthemuscleitselfinseniors.ShesusingCTscanstomeasuremusclesizeandfat,andcomparingseniorsonahigh-proteindietwiththoseonregulardiets.Shesaysherfindi

15、ngsshouldbeavailableinacoupleofmonths.J)Inthemeantime,70-year-oldCorlissKeith,whowasinthehighproteingroupinStarrslateststudy,saysthefeelsabigdifference.Ifeelexcellent,shesays.IfeellikeIhaveadifferentbody.Ihavemoreenergy.Imstronger.ShesayssheisabletotakeZumbaexerciseclassesthreetimesaweek,workoutonth

16、etreadmill(跑步机),andtakelong,briskwalks.Keithalsolostmorethan15pounds.Imafashionableperson,sonowImbackinmy3-inchheels,shesays.K)Aspeopleage,Starrsaysmusclestrengthiskeytohelpingthemstaystrongandcontinuelivingontheirownintheirownhome.Ifeelverymuchalivenow,saysKeith.IfeellikeIcouldstaybymyselfuntilIm10

17、0.L)Batcanpeopleoverdoprotein?Pipitonesaysyoudohavetobecareful.Otherresearcherssaytoomuchproteincancausecramps(痉挛),headaches,andfatigue.Dehydration(脱水)isalsoariskwhenyoueattoomuchprotein.Pipitonesaysifyouincreaseprotein,youalsohavetoincreaseyourfluidintake.Ialwaystellpeopletomakesuretheyredrinkingen

18、oughfluids,whichfortheaveragepersonis60to70ouncesaday,whichtranslatesintoeight8-ounceglassesofwaterorliquidperday.M)Therehavebeensomeindicationsthatextraproteinmakesthekidneysworkharder,whichcouldbeproblematicforindividualswithahistoryofkidneydiseaseandforthem,thesupplementsmayincreasetheriskofkidne

19、ystones,thesays.N)Bottomline,ifyouthinkyouneedmoreproteininyourdiet,considerthesequestions:Areyouanextremeathlete;areyourecoveringfrominjuryorsurgery;orareyou60yearsorolder?Ifso,addinghighproteinfoodslikeeggsandmeatproductstoyourdietcanbebeneficial.And,ifyourenotsure,inisalwaysagoodideatocheckwithyo

20、urprimarycareprovider.36.Itisquiteeasyforonetotakeintherecommendedamountofprotein.37.Pipitoneclaimsthathealthyadultsneednotspendmoneyonproteinsupplements.38.Theproteinsupplementbusinessisfoundtobethriving.39.Proteincanspeedtherepairingofdamagedmuscles.40.Proteinsupplementsmayoverburdensomeinternalor

21、gan,thusleadingtoitsmalfunctioning.41.Olderadultsneedtotakeinmoreproteintokeeptheirmusclesstrong.42.Proteinisfoundinmorefoodsthanpeoplemightrealize.43.Additionalproteinwasfoundtohelpstrengthenthemusclesofoverweightseniorsseekingweightloss.44.Pipitonebelievesthatwholefoodsprovidethebestsourceofprotein.45.Peopleareadvisedtodrinkmoreliquidwhentheytakeinmoreprotein.来源:可可英语:/kekenet/cet6/202020/619293.shtml