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XX湖南张家界高考英语阅读理解练习出guo高考频道在考试后及时公布各科高考试题答案和高考作文及试卷专家点评。请广大考生家长关注,祝福广大考生在xx年高考中发挥出最佳水平,考出好成绩!同时祝愿决战xx高考的新高三学员能倍加努力,在xx年高考中也能取得优异的成绩。Plantscan?tmunicatebymovingormakingsounds,asmostanimalsdo.Instead,plantsproducevolatilepounds,chemicalsthateasilychangefromaliquidtoagas.Aflower?ssweetsmell,forexample,esfromvolatilepoundsthattheplantproducestoattractinsectssuchasbugsandbees.Plantscanalsodetectvolatilepoundsproducedbyotherplants.Atreeunderattackbyhungryinsects,forinstance,maygiveoffvolatilepoundsthatletothertreesknowabouttheattack.Inresponse,theothertreesmaysendoffchemicalstokeepthebugsaway—orevenchemicalsthatattractthebugs?naturalenemies.Nowscientistshavecreatedaquickwaytounderstandwhatplantsaresaying:achemicalsensor(传感器)calledanelectronicnose.The“enose”cantellpoundsthatcropplantsmakewhenthey?reattacked.Scientistssaytheenosecouldhelpquicklydetectwhetherplantsarebeingeatenbyinsects.Buttodaytheonlywaytodetectsuchinsectsistovisuallyinspectindividualplants.Thisisachallengingtaskformanagersofgreenhouses,enclosedgardensthatcanhousethousandsofplants.Theresearchteamworkedwithanenosethatrecognizesvolatilepounds.Insidethedevice,13sensorschemicallyreactwithvolatilepounds.Basedontheseinteractions,theenosegivesoffelectronicsignalsthatthescientistsanalyzeusingputersoftware.Totestthenose,theteampresenteditwithhealthyleavesfromcucumber,pepperandtomatoplants,allmongreenhousecrops.Thenthescientistscollectedsamplesofairarounddamagedleavesfromeachtypeofcrop.Theseplantshadbeendamagedbyinsects,orbyscientistswhomadeholesintheleaveswithaholepunch(打孔器).Theenose,itturnsout,couldidentifyhealthycucumber,pepperandtomatoplantsbasedonthevolatilepoundstheyproduce.Itcouldalsoidentifytomatoleavesthathadbeendamaged.Butevenmoreimpressive,thedevicecouldtellwhichtypeofdamage—byinsectsorwithaholepunch—hadbeendonetothetomatoleaves.Withsomefinetuning,adeviceliketheenosecouldonedaybeusedingreenhousestoquicklyspotharmfulbugs,theresearcherssay.Adevicelikethiscouldalsobeusedtoidentifyfruitsthatareperfectlyripeandreadytopickandeat,saysNataliaDudareva,abiochemistatPurdueUniversityinWestLafayette,Ind.whostudiessmellsofflowersandplants.Hopefully,scientistsbelieve,thedevicecouldbringlargebenefitstogreenhousemanagersinthenearfuture.[语篇解读]植物会说话吗?植物如何“交流”?本文中的科学家们正在尝试用enose来测试植物受到伤害时的反应。1.Welearnfromthetextthatplantsmunicatewitheachotherby________.A.makingsomesoundsB.wavingtheirleavesC.producingsomechemicalsD.sendingoutelectronicsignals[解析]事实细节题。从文章第一段中的“Instead,plantsproducevolatilepounds,chemicalsthat...”可知,植物通过它本身所产生的一种化学物质来进行交流,所以答案选C。[答案]C2.Whatdidthescientistsdotofindoutiftheenoseworked?A.Theypresenteditwithallmoncrops.B.Theyfixed13sensorsinsidethedevice.C.Theycollecteddifferentdamagedleaves.D.Theymadetestsondamagedandhealthyleaves.[解析]逻辑推理题。从文章第五段可知,为了证实enose的效果,科学家用受到伤害的叶子与健康的叶子来测试。所以选D。[答案]D3.Aordingtothewriter,themostamazingthingabouttheenoseisthatitcan________.A.pickoutripefruitsB.spottheinsectsquicklyC.distinguishdifferentdamagestotheleavesD.recognizeunhealthytomatoleaves[解析]事实细节题。从倒数第二段中的“Butevenmoreimpressive,thedevicecouldtellwhichtypeofdamage...”可知,最令人惊奇的是enose能够分辨叶子受到的不同的“伤害”。[答案]C4.Wecaninferfromthelastparagraphthattheenose________.A.isunabletotellthesmellofflowersB.isnotyetusedingreenhousesC.i

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