高一英语 Unit19《Modern agriculture》备课资料 旧人教版第一册VIP免费

ReferenceforTeaching一、异域风情1.ModernFarmPigs,fishpondsandcrops—allhousedintallbuildings.ThisisavisionofindustrialfarmingintheNetherlands(荷兰).Inaworldconcernedabouttheenvironmentandtransport,woulditnotmakesensetoconcentratefoodproductionnexttoaharborandanairport?Andsincehumanscanliveintallbuildings,whynotpigsandfish?ThecreativemindsbehindagovernmentreportsuggestjustthisforasiteatRotterdamveryclosetomainlandEurope'slargestport.Thescaleisvast:imagine10footballfields,sixfloorsofequalarea,atotalof500acres(亩)stretchingskywards.Thebuilding,knownasDeltapark,visualizes(让人想象到)300000pigs,1.2millionchickens,tensofthousandsoffishandagiantvegetablegrowingareaallunderoneroof.Thepigscouldenjoymorespacethanonanaveragepigfarm,andendtheirdaysintheslaughterhousedownstairs.Spacewithoutdaylightinthegiantbuildingcouldbeusedforcultivatingmushroomswhichgrowwellinthedark.Higherup,greenhousesfulloftomatoesandflowers,growninnutrientsolutioncollectedfromelsewhereinthebuilding,wouldprofitfromthelight.Thesystemistheoreticallyacompletefarmingcycle,withoneactivityfeedinganotherandeverythingbeingrecycled.Deltaparkistoberunbymanagers,notfarmers.Ithasnothingtodowithagricultureaswenowknowit,andsofar,onlyexistsonpaper.Buttheideahascreatedaheateddebate(讨论)intheNetherlandsandattractedattentionabroad.2.AutomaticFarmingCanhardworkbereplacedbymachinesinagriculture?Yes,manistryingout(试验)automaticfarming.Itisfuntowatchamachinepickingtomatoes.Thestrangemachinesailslikeashipacrossaseaofplants.Initsfrontisahole.Asthemachinemovesforward,tomatoplantsarepulledintothehole.Thetomatoesaregatheredwhiletherestoftheplantsarethrownbackontothefields.Twelveworkerssitontopofthemachine.Theyrapidlypickoutthebadfruitfromthetomatoes.Aredstreamofripetomatoesisbeingsentintoacartthatispulledalongsidethemachine.Onedriverandtwelveworkerscanpickinanhourtentonsofanewkindoftomato.Withouttheinvention,itwouldtake60mentodothejob.Notallplantscooperate(合作)wellwiththefarmingmachines.Takelettuce(莴苣)forexample,seedsplantsinthesamefieldinthesametimeripeatdifferenttimes.Theonlywaytotellaripeheadoflettuceistolookatitandfeelit.Andnowthereisamachineeventodothat!Thereisaspecialmachinetotestlettuce.Whenitmovesoveronethatfeelsright,itsendsasignalbacktothepickingmachinewhichgoesbehind.Thecuttingandpickingisdonesatisfactorilybythissetofmachines.二、知识归纳(一)against的用法用心爱心专心1(1)作“反对”解，相当于“inoppositionto”Therewere20votesforhimand12againsthim.有二十票赞成他而十二票反对他。(2)作“防备；预防”解，相当于“inpreparationfor”。Weallneedsomesavingsagainstarainyday.我们都需要储蓄一些钱以备不时之需。(3)作“抵抗、抵御”解，相当于“asadefenceorprotectionfrom”。Wearealltakingmedicineagainstthedisease.我们都在服药以抵抗疾病。(4)作“违反；犯；禁止”解。Thisisagainstthelaw.这是犯法的。(5)作“逆……，对着”解，相当于“inanoppositedirectionto”。Iswamagainstthestream.我逆流游泳。(6)作“不利于……”解。Theevidenceisagainsthim.证据对他不利。(7)作“衬托；相映；对照；以……为背景”解，相当于“incontrastto;havingasabackground”。Mt.Aliisbeautifulagainstthesky.(8)作“对比；比较”解。Hewaselectedpresidentofourclassbyamajorityoffortyvotesagainstseven.他以四十票对七票之多数被选为我们的班长。(9)作“靠；依；接触”解。Theladderwasplacedagainstthewall.梯子靠着墙放着。(10)against与beat,dash,hit,push,run,strike等动词连用，作“打在……，碰到……”...