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1、专题限时训练(三十七) [说明文型阅读简答(二)](限时：每篇10分钟)AEvenplantcanrunafever,especiallywhenthey’reunderattackbyinsectsordisease.Butunlikehuman,plantscanhavetheirtemperaturetakenfrom3,000feetawaystraightup.Adecadeago,adoptingtheinfrared(红外线)scanningtechnologydevelopedformilitarypurposesandothersatellite
2、s,physicistStephenPaleycameupwithaquickwaytotakethetemperatureofcropstodeterminewhichonesareunderstress.Thegoalwastoletfarmerspreciselytargetpesticide(杀虫剂)sprayingratherthanrainpoisononawholefield,whichinvariablyincludesplantsthatdon’thavepest(害虫)problems.Evenbetter,Paley’sRemoteScann
3、ingServicesCompanycoulddetectcropproblemsbeforetheybecamevisibletotheeye.Mountedonaplaneflownat3,000feetatnight,aninfraredscannermeasuredtheheatsentoutbycrops.Thedataweretransformedintoacolorcodedmapshowingwhereplantswererunning“fevers”.Farmerscouldthenspotspray,using50to70percentless
4、pesticidethattheyotherwisewould.ThebadnewsisthatPaley’scompanycloseddownin1984,afteronlythreeyears.Farmersresistedthenewtechnologyandlongtermbackerswerehardtofind.Butwiththerenewedconcernaboutpesticidesonproduce,andrefinements(改进)ininfraredscanning,Paleyhopestogetbackintooperation.Agr
5、icultureexpertshavenodoubtthetechnologyworks.“Thistechniquecanbeusedon75percentofagriculturallandintheUnitedStates，”saysGeorgeOertherofTexasA&M,whorecentlyretiredfromtheDepartmentofAgriculture,andhethinksremoteinfraredcropscanningcouldbeadoptedbytheendofthedecade,butonlyifPaleyfindsth
6、efinancialbackingwhichhefailedtoobtain10yearsago.1．Inwhatsituationwillplantshaveafever？(Nomorethan8words)________________________________________________________________________2．Howcanweapplypesticidesprayingprecisely？(Nomorethan10words)_______________________________________________
7、_________________________________________________________________________________________________3．Whymayinfraredscanningtechnologybebroughtbackintooperation？(Nomorethan13words)5用心爱心专心answered“yes”toanyofthequestionsabove,thenyou’reavictimofcomputerrage,whichmeansthatyouletoutangerand
8、frust
