大学英语阅读理解

　Aspecialresearchteamorganizedandsentoutfromthelocalmedicalcentertoperformexperimentsoncompletelyblindinfants.Thetestsamplesincludedtwentycompletelyblindinfants,wholivedathomewiththeirmothersorfamilies.Theresearchworkerswouldvisittheinfantsandcloselyobservethedevelopmentoftheirsensesandbehavioreverytwoweeks.

　Inmostcases,theresearchworkerstestedtheresponsesoftheblindinfantstodifferentstimulicommoninthefamilyenvironment.Generallyspeaking,anormalbabywouldreactwithsmilesandlaughtertotickling,tothevoiceofarelative,andtohuggingfromhisfamily.Hisreactionswereswiftandfleet.Nevertheless,mostoftheblindinfants,accordingtotheexperiments,respondedtostimuliimpassively.Infact,theywereapatheticandindifferenttoanysound.Butundersomespecialcircumstances,someofthemwereabletoreacttothesoundoftheirmotherswithasmile.Usually,theirresponsewasveryslowandphlegmatic.

　Thetestswereconductedoveranine-monthperiod;theybeganwhentheblindinfantswereonemontholdandendedwhentheyweretenmonthsold.

Accordingtothispassagetheblindinfants_____.

　A.weretakentolivewiththeresearchworkers

　B.livedathomewiththeirmothers

　C.weretestedatthemedicalcenter

　D.weremembersoflargefamilies

Theresponsesoftheblindinfantstothestimuli_____.

　A.werethesameasthenormalinfants

　B.weredifferentatfirstbutlaterthesameasthenormalinfants

　C.wereslowerthannormalinfants

　D.wereswiftandspeedy

Whichofthefollowingstatementsistrue?

　A.Anormalbabyrespondedtostimuliimpassively

　B.Anormalbaby’sreactiontothesoundwasphlegmatic

　C.Agroupofnursestookcareoftheblindinfantsatthemedicalcenter

　D.Someoftheblindinfantswereabletorespondtotheirmother’svoice

Howweretheexperimentsconducted?

　A.Thescientiststestedthematthemedicalcenter.

　B.Theblindinfantswerevisitedbyresearchworkerseverytwoweeks.

　C.Theblindinfantsweremadetocomparewiththenormalinfants