英语周练2Microsoft文档

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1、高二英语每周一练BThebabyisjustonedayoldandhasnotyetlefthospital.Sheisquietbutalert（警觉）.Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotsonit.Shestaresatitcarefully.Aresearcherremovesthecardandreplacesitbyanother,thistimewiththespotsdif

2、ferentlyspaced・Asthecardschangefromonetotheother,hergaze（凝视）startstoloseitsfocus一untilathird,withthreeblackspots,ispresented・Hergazereturns:shelooksatitfortwiceaslongasshedidatthepreviouscard・Canshetellthatthenumbertwoisdifferentfromthree,just24hoursafte

3、rcomingintotheworld?Ordonewbornssimplyprefermoretofewer?Thesameexperiment,butwiththreespotsshownbeforetwo,showsthesamereturnofinterestwhenthenumberofspotschanges.Perhapsitisjustthenewness?Whenslightlyolderbabieswereshowncardswithpicturesofobjects（acomb,a

4、key,anorangeandsoon）,changingthenumberofobjectshadaneffectseparatefromchangingtheobjectsthemselves.Coulditbethepatternthattwothingsmake,asopposedtothree?Noagain.Babiespaidmoreattentiontosquaresmovingrandomlyonascreenwhentheirnumberchangedfromtwotothree,o

5、rthreetotwo.Theeffectevencrossesbetweensenses.Babieswhowererepeatedlyshowntwospotsbecamemoreexcitedwhentheythenheardthreedrumbeatsthanwhentheyheardjusttwo;likewise（同样地）whentheresearchersstartedwithdrumbeatsandmovedtospots.60.TheexperimentdescribedinParag

6、raph1isrelatedtothebaby's_.A.senseofhearingB・senseofsightC・senseoftouchD.senseofsmell61.Babiesaresensitivetothechangein.A.thesizeofcardsB・thecolorofpicturesC.theshapeofpatternsD.thenumberofobjects62.Whydidtheresearcherstestthebabieswithdrumbeats?A.Toredu

7、cethedifficultyoftheexperiment.B・Toseehowbabiesrecognizesounds.C.Tocarrytheirexperimentfurthe匚D.Tokeepthebabies9interest.63.Wheredoesthistextprobablycomefrom?A.Sciencefiction.B.Children^literature.C.Anadvertisement.D.Asciencereport.cIthappenedtomerecentl

8、y.IwastellingsomeonehowmuchIhadenjoyedreadingBarackObama'sDreamsFromMyFatherandhowithadchangedmyviewsofourPresident.AfriendIwastalkingtoagreedwithmethatitwas,inhiswords,"abrilliantly(精彩地)writtenbook：However,hethenwentontot