unit19新教材课件
日期：2010-10-02 10:57
Unit19ModernagricultureStepOneWarmingupcomparetraditionalandmodernagriculturesmallscalelargescaleInthepastNownaturalfertiliserchemicalfertiliserploughwithanimalsatractordryandbarren(贫瘠的)landagreenhouseStepTwoFast-readingQ1:What’sthebiggestproblemtoChinesefarmers?Q2:WhatdoesGMmean?Theshortageofarableland“G”standsfor“genetically”“M”standsfor“modified”StepThreeCareful-readingReadthetextcarefullyanddotheexercises1multiple-choice(post-readingexe1)2T&Fquestions1InChinaonlysevenpercentofthelandisusedforfarmingThisis_______Abecausefarmersdon’tneedmorelandtoproducefoodforthewholepopulationBbecauseChinaneedsmore&morelandtobuildcitiesCbecausetherearenotenoughfarmerstoworkonthelandDbecausetheotherlandcan’tbeusedforagriculture2Fertilisationisatechniquethatisusedto______AmakepoorsoilbetterBmakewetlanddrierCmakedrylandwetterDgrowvegetableswiththeirrootsinwaterinsteadofe，
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