2021 年全国硕士研究生入学统一考试英语（一）试题SectionIUseofEnglishDirections:Readthefollowingtext.Choosethebestword(s)foreachnumberedblankandmarkA,B,CorDontheANSWERSHEET.(10points)Fluidintelligenceisthetypeofintelligencethathastodowithshort-termmemoryandtheabilitytothinkquickly,logically,andabstractlyinordertosolvenewproblems.It 1inyoungadulthood,levelsoutforaperiodoftime,andthen2startstoslowlydeclineasweage.But3agingisinevitable,scientistsarefindingthatcertainchangesinbrainfunctionmaynotbe.Onestudyfoundthatmusclelossandthe 4ofbodyfataroundtheabdomenareassociatedwithadeclineinfluidintelligence.Thissuggeststhe5thatlifestylefactorsmighthelppreventor 6thistypeofdecline.Theresearcherslookedatdatathat7measurementsofleanmuscleandabdominalfatfrommorethan4,000middle-to-older-agedmenandwomenand 8thatdatatoreportedchangesinfluidintelligenceoverasix-yearperiod.Theyfoundthatmiddle-agedpeople9highermeasuresofabdominalfat10worseonmeasuresoffluidintelligenceastheyears11.Forwomen,theassociationmaybe 12tochangesinimmunitythatresultedfromexcessabdominalfat;inmen,theimmunesystemdidnotappeartobe 13 .Itishopedthatfuturestudiescould14thesedifferencesandperhapsleadtodifferent15formenandwomen.16therearestepsyoucan17tohelpreduceabdominalfatandmaintainleanmusclemassasyouageinordertoprotectbothyourphysicalandmental18.Thetwohighlyrecommendedlifestyleapproachesaremaintainingorincreasingyour19ofaerobicexerciseandfollowingMediterranean-style20thatishighinfiberandeliminateshighlyprocessedfoods.1.A. pausesB. returnC. peaksD. fades2.A. alternativelyB. formallyC. accidentallyD. generally3.A. whileB. sinceC. onceD. until4.A. detectionB. accumulationC. consumptionD. separation5.A. possibilityB. decisionC. goalD. requirement6.A. delayB. ensureC. seekD. utilize7.A. modifyB. supportedC. includedD. predicted8.A. devotedB. comparedC. convertedD. applied9.A. withB. aboveC. byD. against10. A. livedB. managedC. scoredD. played11. A. ran outB. set offC....
