第五讲“藏而不露”的推理判断题Test1(2013·湖北省荆州市高中毕业班质量检测Ⅰ)Precisionagriculture(精确农业)isawayofthinkingabouthowtoimproveproductionandgetmorefromexistingresources.Itofteninvolvestheuseoftechnology.Anexamplefoundmostlyinwealthiercountriesisacomputerguidedtractor.Thecomputerdoesmostofthedriving.ItusessignalsfromsatellitesintheGlobalPositioningSystem.GPStechnologyhelpsthetractorcutrowsinstraightlinesandputtherightamountoffertilizerintherightplace.JimmyMessickisafarmerinnorthernVirginia，notfarfromWashington.HesaystheGPSguidancesystemmakesiteasytocomebacklaterandplanttheseedinhisfieldsofcorn.BecauseoftheGPSguidance，Messicknowpayshalfwhatheoncedidforfertilizer.BruceEricksonisanagronomist(农学家)atPurdueUniversityinIndiana.Hesayssavingevenalittlebitofseed，pesticideorfertilizerleadsdirectlytoexpensesavingsandlessenvironmentaldamage.RajKhoslaisanagronomistatColoradoStateUniversity.Hesaysfarmersinthedevelopingworldcanuseprecisionagricultureevenwithouthightechtractors.“Wedonotnecessarilyhavetohavecomplex，largemachinestopracticewhatcouldbedoneassimplyasusingbottlecaps，”MrKhoslasays.Theideaistouseabottlecaptopourameasuredamountoffertilizerrightnexttoeachplant.Ittakesmoreworkthansimplythrowinghandfulsoffertilizeracrossafield.ButMrKhoslasayswhenresearcherstaughtthisbottlecapmethodtofarmersinsubSaharanAfrica，theydiscoveredthatitwasworththeextraeffortiftheycouldonlyaffordasmallamountoffertilizer.“Therewasahugedifference，morethandouble，intermsofproductivity，”MrKhoslasays.Ofcourse，newtechnologyisnotalwayssocheap.ButMrKhoslasaysfarmerscouldformacooperativeorcombinetheirresourcestopayfornewequipment.HeandotherresearchersworkedwithafarmerinIndiatopreciselylevelhiswheatfields.Thatkeptthefieldsfromdevelopingwetanddryareasthatreducedproductivity.Thefarmeralsoaddedbetterfertilizerandinsectcontrol.Asaresult，hewasabletogrowalmostthreetimesasmuchwheatonthesameamountofland.MrKhoslasayswiththeextramoneythefarmermadeandasmallloan，heboughthisownprecisionleveler.Andnow，forafee，heoffersthatasaservicetohisneighborsandotherfarmers.语篇解读精确农业是关于如何提高产量并从现有的资源中获得更多回报的一种方式。1．WithGPStechnology，farmerscan________.A．applyfertilizerpreciselyB．cutrowswithoutusingtractorsC．findthewaytotheirfieldseasilyD．connectwiththeirfamilyconveniently解析：细节理解题。根据第一段的最后一句“GPStechnologyhelpsthetractorcutrowsinstraightlinesandputtherightamountoffertilizerintherightplace.”可知应选A。答案：A2．Theexampleofthebottlecapmethodintendstoshowprecisionagriculture________.A．isworththeextraeffortB．savesbothmoneyandtimeC．takesmoreworkthanthetraditionalwayD．canbeputintopracticewithouthightechtractors解析：推理判断题。根据第三段第一句的内容可知，精确农业在没有高科技拖拉机的辅助下也能付诸实践，故选D。答案：D3．Accordingtothepassagethecommonadvantage(s)aboutprecisionagricultureis(are)________．A．reducingtheamountoftimeandfertilizerB．savingbothexpenseandhumanstrengthC．solvingtheproblemofpestanddiseasedamageD．increasingproductivityandprotectingtheenvironment解析：推理判断题。文章介绍精确农业共举了三个例子，第一个例子借助于GPS技术节省了种子、农药和肥料，从而降低了生产成本，减少了对环境的破坏。第二个例子借助于瓶盖来施肥也可以减少肥料的使用并将产量翻番。第三个例子中麦农借助于精准平整器、优化施肥方式和控制病虫害将产量提高到了原来的几乎三倍。综合这三个...
