unit19reading附精美图片课件
日期：2010-06-18 06:58
rainandinsects”，InChinaonly7%ofthelandisusedforfarmingThisis________Becausefarmersdon’tneedmorelandtoproducefoodforthewholepopulationBecauseChinaneedsmoreandmorelandtobuildcitiesBecausetherearenotenoughfarmerstoworkonthelandBecausetheotherlandcannotbeusedforagriculture3Scientistshavestartedtodevelopnewtechnologytoincreaseagriculturalproductionwithoutharmingtheenvironmentsince_____aThe19thcenturybmoderntimesctheearly1990sdthe1980s2Fertilisationisatechniquethatisusedto________makepoorsoilbettermakewetandlanddrierMakedrylandwettergrowvegetableswiththeirrootsinwaterinsteadofearth4Modernagriculturemeansfindingwaysto_________increaseirrigationandstopusingfertilisersStopirrigationandusingfertiliserIncreaseproductionandbefriendlytotheenvironmentProducethesameamountwhiletakingbettercareofnature5Inthesentence“…theyareprotectedfromhewind，“they”means______Greenhousesbrootscvegetablesdto，
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