黑龙江省五营区整理教师招聘(中学)考试题库【研优卷】.docx
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黑龙江省五营区整理教师招聘(中学)考试题库【研优卷】.docx

黑龙江省五营区整理教师招聘(中学)考试题库【研优卷】.docx

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专业教师招聘(中学)考试题库,word格式可自由下载编辑,附完整答案!黑龙江省五营区整理教师招聘(中学)考试题库【研优卷】第I部分单选题(100题)1.CAdeclineinmemoryasaresultofageingcanbetemporarilyreversedusingaharmlessformofelectricalbrainstimulation,scientistshavefound.Thestudyfocusedonapartofcognitioncalledworkingmemory,thebrainsystemthatholdsinformationforshortperiodswhilewearemakingdecisionsorperformingcalculations.Workingmemoryiscrucialforawidevarietyoftasks,suchasrecognisingfaces,doingarithmeticandnavigatinganewenvironment.Workingmemoryisknowntosteadilydeclinewithage.Onefactorinthisdeclineisthoughttobeadisconnectionbetweentwobrainnetworks.Inthestudy,publishedinthejournalNatureNeuroscience,42peopleaged20-29and42peopleaged60-76wereassessedinaworkingmemorytask.Theoldergroupwereslowerandlessaccurateonthetests.Thescientiststhensubjectedthemallto25minutesofnon-invasivebrainstimulation.Thisaimedtomakethetwotargetbrainregionsworktogetherbypassinggentlepulsesofelectricitythroughthescalp(头皮)andintothebrain.Afterthetreatment,workingmemoryintheolderadultsimprovedtomatchtheyoungergroupandtheeffectappearedtolastfor50minutesafterthestimulation.Thosewhohadscoredworsttostartwithshowedthelargestimprovements.Whiletheseresultswereexcitingandpromising.DardoTomasi,ascientistattheNationalInstituteonAlcoholAbuseandAlcoholisminBethesda,whowasnotinvolvedintheworksaidthatlargerstudieswouldbeneededtoconfirmthefindingsandassesshowtheymightbeappliedclinically.D.JamesPicketeheadofresearchattheAlzheimer'sSociety,said,“Wecan’tcure,preventorevenslowdowndementia(痴呆),soitvitalweexploreallpossibleareasfortreatments.Alteringandcorrectingthecircuitryofthebrainwithtechnologyisanewexcitingavenueofresearchfordementia.Deep-brainsimulationasurgicalprocedureusedinParkinson’s,isproofofprinciplethatthisapproachmayonedaybefruiA:MoreresearchesareneededbeforetheresultsareappliedtopatientsB:TheapproachissuccessfulforslowingdownthedeclineinmemoryC:ThosewhohadworstmemorydemonstratedfewerimprovementsD:PreservingthecircuitryofbrainisadirectionofresearchfordementiA答案:A
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