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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.Thebeesthenflytotheirhive(蜂房)andgivethesyruptooth
2、erbeesinthehive.Thentheyreturntothefeeding-placewhichtheyhavefound.Afterawhile,thebluecardboardwiththesyruponitistakenaway.Insteadofthiscard,abluecardisnowputontheleftsideofthefirstfeeding-placeandaredcardtoitsright.Thesenewcardshavenosyruponthem.Verysoonbeesarriveagain,andflystraighttothebluec
3、ard.Nonegototheredcard.Picture11.Howmanycardsdoyouneedtopreparefortheexperiment?A.Two:oneblueandoneredB.Three:twoblueandoneredC.Three:oneblueandtworedD.Four:twoblueandtwored2.IfPicture1belowshowsthetabletopduringStep1oftheexperiment,whichofA,B,C,DinPicture2showsthetabletopduringStep2?Picture23.
4、DuringStep2oftheexperiment,thebeesgoto________.A.thebluecardwithsyruponitB.thenewbluecardwithnosyruponitC.theemptyspacewheretheoriginal(原先的)bluecardwasD.thenewbluecardwithsyruponitontheleftoftheredcard4.Theexperimenthasproved(证明)thatbees________.A.cannotseecolorsB.canseecolorsC.cannotseeblueD.c
5、annotseered5.Whichofthefollowingisthebesttitleforthepassage?A.BeesLoveBlueB.BeesLoveSyrupC.Bees,ColorandSyrupD.CanBeesSeeColor?Keys:1-5BCBBD(二)Nowsatellitesarehelpingtoforecast(预报)theweather.Theyareinspace,andtheycanreachanypartoftheworld.Thesatellitestakepicturesoftheatmosphere(大气),becausethis
6、iswheretheweatherforms(形成).Theysendthesepicturestotheweatherstations.Someteorologists(气象学家)canseetheweatherofanypartoftheworld.Fromthepictures,thescientistscanoftensayhowtheweatherwillchange.Today,nearlyfivehundredweatherstationsinsixtycountriesreceivesatellitepictures.Whentheyreceivenewpicture
7、s,themeteorologistscompare(比较)themwithearlierones.Perhapstheymayfindthatthecloudshavechangedduringthelastfewhours.Thismaymeanthattheweatheronthegroundmaysoonchange,too.Intheirnextweatherforecast,themeteorologistscansaythis.Sothewe