2021年全国硕士研究生招生考试《英语一》答案及解析.pdfVIP

一、单选题

根据以下材料，回答1-20题

 Fluidintelligenceisthetypeofintelligencethathastodowithshort-termmemoryand

theabilitytothinkquickly,logically,andabstractlyinordertosolvenewproblems.It 

1 inyoungadulthood,levelsoutforaperiodoftime,andthen 2 startstoslowly

declineasweage.But 3 agingisinevitable,scientistsarefindingoutthatcertain

changesinbrainfunctionmaynotbe. Onestudyfoundthatmusclelossandthe 4 

ofbodyfataroundtheabdomenareassociatedwithadeclineinfluidintelligence.This

suggeststhe 5 thatlifestylefactorsmighthelppreventor 6 thistypeofdecline. 

Theresearcherslookedatdatathat 7 measurementsofleanmuscleandabdominal

fatfrommorethan4,000middle-to-older-agedmenandwomenand 8 thatdatato

reportedchangesinfluidintelligenceoverasix-yearperiod.Theyfoundthatmiddle-

agedpeople 9 highermeasuresofabdominalfat 10 worseonmeasuresoffluid

intelligenceastheyears 11 . Forwomen,theassociationmaybe 12 to

changesinimmunitythatresultedfromexcessabdominalfat;inmen,theimmunesystem

didnotappeartobe 13 .Itishopedthatfuturestudiescould 14 these

differencesandperhapsleadtodifferent 15 formenandwomen.  16 thereare

stepsyoucan 17 tohelpreduceabdominalfatandmaintainleanmusclemassasyou

ageinordertoprotectbothyourphysicalandmental 18 .Thetwohighly

recommendedlifestyleapproachesaremaintainingorincreasingyour 19 ofaerobic

exerciseandfollowingMediterranean-style 20 thatishighinfiberandeliminates

highlyprocessedfoods.

1、第1题答案是   .

A、pauses

B、returns

C、peaks

D、fades

解析：

：本题考查动词辨析及上下文逻辑关系。根据文章首段首句可知，流体智力是一种

与短期记忆和快速、逻辑和抽象思考解决新问题有关的智力类型。在描述这种智力

随年龄的变化时，选项中的动词需要与智力水平的变化相符合。其中，“peaks”（

达到顶峰）符合描述流体智力在年轻时的状态，即达到最高点，随后可能逐渐下降

。因此，答案为C。

根据以下材料，回答21-25题

 HowcanBritishtrainoperatorspossiblyjustifyyetanotherincreasetorail