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1、2018-2019年度高二期末考试卷英语第一部分阅读理解第一节(共15小题;每小题3分,满分45分)阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳答案。ACantreestalk?Yes,butnotinwords.Scientistshavereasontobelievethattreesdocommunicate(交际)witheachother.Notlongago,researcherslearnedsomesurprisingthings.Firstawillowtreeattackedinthew
2、oodsbycaterpillars(毛虫)changedthechemistryofitsleavesandmadethemtastesoterriblethattheygottiredoftheleavesandstoppedeatingthem.Thenevenmoreastonishing,thetreesentoutaspecialsmell---asignal(信号)causingitsneighborstochangethechemistryoftheirownleavesandmakethemlesstas
3、ty.Communication,ofcourse,doesn’tneedtobeinwords.Wecantalktoeachotherbysmiling,raisingourshouldersandmovingourhands.Weknowthatbirdsandanimalsuseawholevocabularyofsongs,sounds,andmovements.Beesdancetheirsignals,flyingincertainpatternsthattellotherbeeswheretofindnec
4、tar(花蜜)forhoney.Sowhyshouldn’ttreeshavewaysofsendingmessage?1.Itcanbeconcludedfromthepassagethatcaterpillarsdonotfeedonleavesthat______.A.arelyingonthegroundB.haveanunpleasanttasteC.beesdon’tlikeD.haveanunfamiliarshape2.Thewillowtreedescribedinthepassageprotectedi
5、tselfby______.A.growingmorebranchesB.communicatingwithbirdsandbeesC.changingitsleafchemistryD.shakingcaterpillarsoff3.Accordingtothepassage,thewillowtreewasabletocommunicatewithothertreesby______.A.wavingitsbranchesB.givingoffaspecialsmellC.droppingitsleavesD.chan
6、gingthecolourofitstrunkBItdoesn'tmatterwhenorhowmuchapersonsleeps,buteveryoneneedssomeresttostayalive.That'swhatalldoctorsthought,untiltheyheardaboutAlHerpin.AlHerpin,itwassaid,neverslept.Couldthisbetrue?Thedoctorsdecidedtoseethisstrangemanthemselves.AlHerpinwas90
7、yearsoldwhenthedoctorscametohishomeinNewJersey.Theythoughtforsurethathegotsomesleepofsomekind.Sotheystayedwithhimandwatchedeverymovementhemade.Buttheyweresurprised.Thoughtheywatchedhimhourafterhouranddayafterday.TheyneversawHerpinsleeping.Infact,hedidnotevenownabe
8、d.Heneverneededone.TheonlyrestthatHerpinsometimesgotwassittinginacomfortablechairandreadingnewspapers.Thedoctorswerepuzzledbythisstrangecontinuoussleepl