大学英语专四考试完形填空密训试题.docx

大学英语专四考试完形填空密训试题大学英语专四考试完形填空密训试题Ifthecompassesfeetmoving,foreveralsocannotdrawacircle.以下是小编为大家搜索整理的大学英语专四考试完形填空密训试题，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!Researchershaveestablishedthatwhenpeoplearementally____1____,biochemicalchangesoccurinthebrainthatallowitto____2____moreeffectivelyincognitive(认知的)areassuchasattentionandmemory.Thisistrue____3____age.Peoplewillbealertand____4____iftheyarefacedwithinformationthat____5____themtothinkaboutthingstheyare____6____in.Andsomeonewithahistoryofdoingmore____7____lesswillgointooldagemorecognitivelysoundthansomeonewhohasnothadanactive____8____.Manyexpertsaresoconvinced____9____thebenefitsofchallengingthebrainthattheyare____10____thetheorytoworkintheirownlives.“Theideaisnot____11____tolearntomemorizeenormous____12____ofinformation,”saysJamesFozard,associatedirectoroftheNationalInstituteonAging.“Mostofusdon’tneedthatkindofskill.Suchspecifictrainingis____13____lessinterestthanbeingabletomaintainmental____14____.”Fozardandotherssaytheychallengetheirbrainswithdifferentmentalskills,____15____becausetheyenjoythemandbecausetheyaresurethattheirrangeofactivitieswillhelpthe____16____theirbrainswork.GeneCohen,actingdirectorofthesameinstitute,saysthatwearefrequentlyadvisedtokeep____17____activeasweage,butolderpeopleneedtokeepmentallyactiveaswell.Thosewho____18____aremore____19____tomaintaintheirintellectualabilitiesandtobegenerallyhappierandbetteradjusted.Andintellectualactivityactually____20____brain-cellhealthandsize.1.A.strengthenedB.alertC.engagedD.activated2.A.actB.thinkC.learnD.respond3.A.astoB.regardlessofC.inspiteofD.despite4.A.deceptiveB.inceptiveC.perceptiveD.receptive5.A.makesB.letsC.pushesD.gets6.A.familiarB.interestedC.ImpressedD.attracted7.A.ratherthanB.otherthanC.insteadofD.inplaceof8.A.brainB.mindC.intellectD.mentality9.A.withB.atC.ofD.in10.A.puttingB.tryingC.usingD.laying11.A.certainlyB.necessarilyC.immediatelyD.quickly12.A.numberB.numbersC.amountD.amounts13.A.ofB.inC.withD.at14.A.functionB.al