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1、UNIT4StoriesandPoemsLesson23TheGiant(ii)习题2一、阅读理解（一）Tofindoutwhetherbees（蜜蜂）canseecolours,thefollowingexperimentismade.Aroundtableisputinagarden,andonthetableisapieceofbluecardboard（硬纸版）withadropofsyrup（糖浆）onit.Afterashorttime,beescometothesyrup.Thebeesthenflytothei
2、rhive（蜂房）andgivethesyruptootherbeesinthehive.Thentheyreturntothefeeding-placewhichtheyhavefound.Afterawhile,thebluecardboardwiththesyruponitistakenaway.Insteadofthiscard,abluecardisnowputontheleftsideofthefirstfeeding-placeandaredcardtoitsright.Thesenewcardshavenosy
3、ruponthem.Verysoonbeesarriveagain,andflystraighttothebluecard.Nonegototheredcard.Picture11.Howmanycardsdoyouneedtopreparefortheexperiment?A.Two:oneblueandoneredB.Three:twoblueandoneredC.Three:oneblueandtworedD.Four:twoblueandtwored2.IfPicture1belowshowsthetabletopdu
4、ringStep1oftheexperiment,whichofA,B,C,DinPicture2showsthetabletopduringStep2?Picture23.DuringStep2oftheexperiment,thebeesgoto________.A.thebluecardwithsyruponitB.thenewbluecardwithnosyruponitC.theemptyspacewheretheoriginal（原先的）bluecardwasD.thenewbluecardwithsyruponi
5、tontheleftoftheredcard4.Theexperimenthasproved（证明）thatbees________.A.cannotseecolorsB.canseecolorsC.cannotseeblueD.cannotseered5.Whichofthefollowingisthebesttitleforthepassage?A.BeesLoveBlueB.BeesLoveSyrupC.Bees,ColorandSyrupD.CanBeesSeeColor?Keys:1－5BCBBD（二）Nowsate
6、llitesarehelpingtoforecast（预报）theweather.Theyareinspace,andtheycanreachanypartoftheworld.Thesatellitestakepicturesoftheatmosphere（大气）,becausethisiswheretheweatherforms（形成）.Theysendthesepicturestotheweatherstations.Someteorologists（气象学家）canseetheweatherofanypartofthe
7、world.Fromthepictures,thescientistscanoftensayhowtheweatherwillchange.Today,nearlyfivehundredweatherstationsinsixtycountriesreceivesatellitepictures.Whentheyreceivenewpictures,themeteorologistscompare（比较）themwithearlierones.Perhapstheymayfindthatthecloudshavechanged
8、duringthelastfewhours.Thismaymeanthattheweatheronthegroundmaysoonchange,too.Intheirnextweatherforecast,themeteorologistscansaythis.Sothewe
