Babygirlsmaketheirwaytodollsassoonastheycancrawl，whileboyswillheadforthetoycars，astudyhasshown．Thefindings，thefirsttoshowconsistentdifferencesinveryyoungbabies，suggestthereisabiologicalbasistotheirpre

　　Babygirlsmaketheirwaytodollsassoonastheycancrawl，whileboyswillheadforthetoycars，astudyhasshown．Thefindings，thefirsttoshowconsistentdifferencesinveryyoungbabies，suggestthereisabiologicalbasistotheirpreferences．

　　PsychologistsDrBrendaToddfromCityUniversityLondoncarriedoutanexperimentinvolving90babiesagedninemonthsto36months．Theywereallowedtochoosefromseventoys．Somewereboys'toys-acar，adigger，aballandablueteddy．Therestweregirls'toys：apinkteddy，adollandacookingset．Theywereplacedameterawayfromthetoys，andcouldpickwhichevertoytheyliked．Theirchoiceandtheamountoftimetheyspentplayingwitheachtoywererecorded．

　　Oftheyoungestchildren （nineto14months），girlsspentmuchlongerplayingwiththedollthanboys，andboysspentmuchmoretimewiththecarandballthanthegirlsdid．Amongthetwo-andthree-year-olds，girlsspent50percentofthetimeplayingwiththedollwhileonlytwoboysbrieflytouchedit．Theboysspentalmost90percentoftheirtimeplayingwithcars，whichthegirlsbarelytouched．Therewasnolinkbetweentheparents'viewonwhichtoysweremoreappropriateforboysorgirls，andthechildren'schoice．

　　DrBrendaToddsaid："Childrenofthisagearealreadyexposedtomuchsocialization．Boysmaybegiven‘toysthatgo'whilegirlsgettoystheycancarefor，whichmayhelpshapetheirpreference．Butthesefindingsagreewiththeformerideathatchildrenshownaturalinterestsinparticularkindsoftoys．Therecouldbeabiologicalbasisfortheirchoices．Malesthroughevolutionhavebeenadaptedtoprefermovingobjects，probablythroughhuntinginstincts（本能），whilegirlspreferwarmercolorssuchaspink，thecolorofanewbornbaby．"

　　4．Babyboysandgirlshavedifferenttoypreferencesprobablybecause___．

　　A．babyboysaremuchmoreactive

　　B．babygirlslikebrightcolorsmore

　　C．parentshaveaneffectontheirviews

　　D．theremaybeabiologicaldifference

　　5．Bothbabyboysandbabygirlsliketoplaywith___accordingtothestudy．

　　A．aball

　　B．ateddy

　　C．acar

　　D．adoll

　　6．WhatcanweinferfromParagraph3？___

　　A．Nine-month-oldbabyboysd