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1、巴市一中高二年级第一学期期中考试英语试题试卷类型:A说明:本试题分第I卷(选择题)和第II卷(非选择题),考试时间为100分钟,卷面总分为120分,第1卷答案应涂在答题卡上,考试完毕后,只交第II卷和答题卡。第I卷(共70分)第一部分:阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳答案。AWhenaleafyplantisunderattack,itdoesn’tsitquietly.Backin1983,twoscientists,Ja
2、ckSchultzandIanBaldwin,reportedthatyoungmapletreesgettingbittenbyinsectssendoutaparticularsmellthatneighboringplantscanget.Thesechemicalscomefromtheinjuredpartsoftheplantandseemtobeanalarm.Whattheplantspumpthroughtheairisamixtureofchemicalsknownasvolatileorganiccom
3、pounds,VOCsforshort.ScientistshavefoundthatallkindsofplantsgiveoutVOCswhenbeingattacked.It’saplant’swayofcryingout.Butisanyonelistening?Apparently.Becausewecanwatchtheneighboursreact.Someplantspumpoutsmellychemicalstokeepinsectsaway.Butothersdodoubleduty.Theypumpou
4、tperfumes(芳香)designedtoattractdifferentinsectswhoarenaturalenemiestotheattackers.Oncetheyarrive,thetablesareturned.Theattackerwhowaslunchingnowbecomeslunch.Instudyafterstudy,itappearsthatthesechemicalconversationshelptheneighbors.Thedamageisusuallymoreseriousonthef
5、irstplant,buttheneighbors,relativelyspeaking,staysaferbecausetheyheardthealarmandknewwhattodo.Doesthismeanthatplantstalktoeachother?Scientistsdon’tknow.Maybethefirstplantjustmadeacryofpainorwassendingamessagetoitsownbranches,andso,ineffect,wastalkingtoitself.Perhap
6、stheneighborsjusthappenedto“overhear”(无意中听到)thecry.Soinformationwasexchanged,butitwasn’tatrue,intentionalbackandforth.CharlesDarwin,over150yearsago,imaginedaworldfarbusier,noisierandmoreintimate(亲密的)thantheworldwecanseeandhear.Oursensesareweak.There’sawholelotgoing
7、on.1.Whatdoesaplantdowhenitisunderattack?A.Itmakesnoises.B.Itgetshelpfromotherplants.C.ItstandsquietlyD.Itsendsoutcertainchemicals.2.Whatdoestheauthormeanby“thetablesareturned”inparagraph3?A.Theattackersgetattacked.B.Theinsectsgatherunderthetable.C.Theplantsgetread
8、ytofightback.D.Theperfumesattractnaturalenemies.3.Scientistsfindfromtheirstudiesthatplantscan.A.predictnaturaldisastersB.protectthemselvesagainst