2007高考阅读类--科普

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1、答案见《十处高考》1997--20062006年上海CInsomechildrenwhogoblind,certainpartsofthebrainthatnormallycontrolvisionappeartoswitchjobsandfocusinsteadonsound,anewstudyhasfound.Thestudy,byresearchersattheUniversityofMontreal,involved7adultswhocouldseeand12adultswhohadlosttheirvisionwhentheywerechi

2、ldren.Eachparticipantsatinaroomwith16loudspeakersatdifferentlocations.Theroomwasdesignedsothattherewerenoechoes.Duringtheexperiment,thespeakersirregularlyproducedsounds.Participantshadtopointtowherethesoundswerecomingfrom.Meanwhile,theresearchersmonitoredbloodflowinthebrainsofth

3、eparticipantstoseewhichbrainstructureswereworkingduringthetask.Theresultsshowedthatfiveoftheblindparticipantswereverygoodatpointingtowheresoundswerecomingfrom.Inthesepeople,bloodflowincreasedinthevisualcortex-anareaatthebackoftherightsideofthebrain.Thispartofthebrainisusuallyass

4、ociatedwithvision.Theothersevenblindparticipantsshowednoincreaseinactivityinthevisualcortex.Thesepeopledidn'tdoverywellatpickingoutwheresoundswerecomingfrom.Now,theresearchersarelookingatwhetherthesepeoplehavegainedanenhancedsenseoftouchinsteadofsoundtoreplacetheirlostvision.The

5、scientistssaythattheirstudyshowshowadaptablepartsofthebraincanbe.72.  ThepurposeoftheexperimentdescribedinthepassageistofindwhetherA.blindchildrencanregaintheirsightB.blindpeoplehaveabettersenseofsoundC.thesenseoftouchisbetteramongblindpeopleD.bloodflowinthebrainsofblindpeopleis

6、slower73.Theparticipantsoftheexperimentwereasked___.A.totellthedifferencebetween16soundsB.totakedownthetimeeachsoundlastedC.toidentifythedirectionthesoundcamefromD.todetectthenumberoftheloudspeakers.74.Duringtheexperiment,bloodflowinthebrainsoftheparticipantswasmeasuredinorderto

7、___.A.learnaboutthewaytheyreacttoechoesB.lookforthewayofenhancinghearingabilityC.findwhichpartsofthebrainwerefunctioningD.exposetherelationshipbetweenseeingandtouching75.Whichofthefollowingstatementsbestsummarizesthemainideaofthepassage?A.Mostblindpeoplehaveawell-developedsenseo

8、ftouch.B.Peoplegoblindbecauseofthebreakdownofth