完形填空1,2

1、Cloze1Researchershaveestablishedthatwhenpeoplearementally____1____biochemicalchangesoccurinthebrainthatallowitto____2____meeffectivelyincognitive(認(rèn)知的)areassuchasattentionmemy.Thisistrue____3____age.Peoplewillbealert____4

2、____iftheyarefacedwithinfmationthat____5____themtothinkaboutthingstheyare____6____in.someonewithahistyofdoingme____7____lesswillgointooldagemecognitivelysoundthansomeonewhohasnothadanactive____8____.Manyexpertsaresoconvi

3、nced____9____thebenefitsofchallengingthebrainthattheyare____10____thetheytowkintheirownlives.“Theideaisnot____11____tolearntomemizeenmous____12____ofinfmation”saysJamesFozardassociatedirectoftheNationalInstituteonAging.“

4、Mostofusdon’tneedthatkindofskill.Suchspecifictrainingis____13____lessinterestthanbeingabletomaintainmental____14____.”Fozardotherssaytheychallengetheirbrainswithdifferentmentalskills____15____becausetheyenjoythembecauset

5、heyaresurethattheirrangeofactivitieswillhelpthe____16____theirbrainswk.GeneCohenactingdirectofthesameinstitutesaysthatwearefrequentlyadvisedtokeep____17____activeasweagebutolderpeopleneedtokeepmentallyactiveaswell.Thosew

6、ho____18____areme____19____tomaintaintheirintellectualabilitiestobegenerallyhappierbetteradjusted.intellectualactivityactually____20____braincellhealthsize.1.A.strengthenedB.alertC.engagedD.activated2.A.actB.thinkC.learn

7、D.respond3.A.astoB.regardlessofC.inspiteofD.despite文章大意文章大意本文主要介紹研究人員所證實(shí)的一個(gè)觀點(diǎn)：當(dāng)人們動(dòng)腦筋時(shí)，大腦中會(huì)產(chǎn)生生物化學(xué)變化，這種變化在人們的認(rèn)知方面體現(xiàn)得更為明顯。另外，當(dāng)人們遇到自己感興趣的內(nèi)容時(shí)，大腦會(huì)保持清醒狀態(tài)；同時(shí)，經(jīng)常動(dòng)腦筋對(duì)年老之后的腦健康是非常有益的。答案與解析答案與解析1.C語義銜接題。mentallyengaged：動(dòng)腦筋，思考問題。與第二段“

8、...thinkaboutthingstheyareinterestedin”的thinkabout相對(duì)應(yīng)。2.A語義銜接題。think和respond在意義上無法與effectively搭配。本句的意思是研究者證實(shí)，當(dāng)人們處于思考狀態(tài)時(shí)，大腦中產(chǎn)生的生物化學(xué)變化會(huì)使得大腦在諸如注意力和記憶力等認(rèn)知領(lǐng)域的活動(dòng)更為有效。3.B邏輯關(guān)系題。regardlessof：不管，不顧，在此表示與年齡無關(guān)；despiteinspiteof意為“盡管”

9、；asto：至于。4.D形容詞辨析題。receptive：善于接受（新思想）的；deceptive：欺騙的；inceptive：期初的；perceptive：感知的。5.D動(dòng)詞辨析題。getsb.tothink：使……去思考。make后面應(yīng)該省略to；let和push的意思都不合適。6.B語義銜接、介詞搭配題。此處的意思是人們會(huì)對(duì)“感興趣的”事情進(jìn)行思考。此外，只有interested的介詞搭配為in。7.A邏輯關(guān)系題。根據(jù)句意，一貫喜