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Thebabyisjustonedayoldandhasnotyetlefthospital.Sheisquietbutalert(警觉).Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotsonit.Shestaresatitcarefully.Aresearcherremovesthe
更新时间: 2025-08-31 13:16:52
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Thebabyisjustonedayoldandhasnotyetlefthospital.Sheisquietbutalert(警觉).Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotsonit.Shestaresatitcarefully.Aresearcherremovesthecardandreplacesitbyanotherthistimewiththespotsdifferentlyspaced.Asthecardschangefromonetotheotherhergaze(凝视)startstoloseitsfocus--untilathirdwiththreeblackspotsispresented.Hergazereturns:shelooksatitfortwiceaslongasshedidatthepreviouscard.Canshetellthatthenumbertwoisdifferentfromthreejust24hoursaftercomingintotheworld?

Ordonewbornssimplyprefermoretofewer?Thesameexperimentbutwiththreespotsshownbeforetwoshowsthesamereturnofinterestwhenthenumberofspotschanges.Perhapsitisjustthenewness?Whenslightlyolderbabieswereshowncardswithpicturesofobjects(acombakeyanorangeandsoon)changingthenumberofobjectshadaneffectseparatefromchangingtheobjectsthemselves.Coulditbethepatternthattwothingsmakeasopposedtothree?Noagain.Babiespaidmoreattentiontosquaresmovingrandomlyonascreenwhentheirnumberchangedfromtwotothreeorthreetotwo.Theeffectevencrossesbetweensenses.Babieswhowererepeatedlyshowntwospotsbecamemoreexcitedwhentheythenheardthreedrumbeatsthanwhentheyheardjusttwo;likewise(同样地)whentheresearchersstartedwithdrumbeatsandmovedtospots.

33.Babiesaresensitivetothechangein_______.

A.thesizeofcards

B.thecolourofpictures

C.theshapeofpatterns

D.thenumberofobjects

34.Whydidtheresearcherstestthebabieswithdrumbeats?

A.Toreducethedifficultyoftheexperiment

B.Toseehowbabiesrecognizesounds

C.Tocarrytheirexperimentfurther

D.Tokeepthebabesinterest.

35.Wheredoesthistextprobablycomefrom?

A.Sciencefiction

B.Children’sliterature

C.Anadvertisement

D.Asciencereport

代大海回答:
  DCD
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