Unit19Reading课件
日期：2010-01-05 01:30
doingtheworkwithworkerswhoarenotpartoffamily，Whatotherchangeshavehappenedonfarmsinthelast100years?Traditionalfarming---?AgricultureModernfarming---??Hi-techfarming---TraditionalfarmingModernfarmingHi-techfarmingAdvantagesDisadvantages1，Unit19ModernAgricultureagriculturefarmirrigationfoodcropfieldplantsplainfarminggrainfarmerfertilizerseedprairiecountrysidelandarablelandDiscussthefollowingquestionswithyoupartner1，Whataretheadvantagesanddisadvantagesofeachway?3，thegrowthofthefarms(biggerfarms)，theuseofinsectkillers，Whatotherchangeshavehappenedonfarmsinthelast100years?Overthelast100yearstherehavebeensomechangesonfarmsandinagriculture:Theuseofmachines，theuseoffoodsupplementsinanimalfeed，theuseofchemicalfertilizers，Lookatthepicturesandcomparetraditionalandmodernfarming2，Whataretheadvantagesanddisadvantagesofeachway?3，growingdifferentcrops，etcHowmanyfirstdoweChinesehaveinthehistoryofagriculture??Scanning:，
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