Unit19ModernAgriculture课件
日期:2010-04-11 04:44
2004WelcometomyclassUnit19ModernAgriculturePre-readingPresentationReadingHomeworkTask1Pre-readingBLookatthepicturesatp45andcomparetraditionalandmodernfarming1Whatcanyouseeinthepictures?2Whataretheadvantagesanddisadvan-tagesofeachway?AWhatisfarminglikeinyourhometown?Inthefirstpicture:Achicken/AhenInthesecondpicture:AfarmerfeedingchickensInthethirdpicture:AmodernchickenfarmWhatarethedifferences?ComparetheoldandthemodernwaysofraisingchickensAfarmercanonlykeepafewchickensAfactorycankeepthou-sandsofchickensItcostonlyalittlemoneyItcostalottostartafactorydon’thavemanyproblemsifill,manydieorarekilledTheeggsandmeataretastyTheydon’ttastesodeliciousThechickensarefreenotfree,TheLecturer:ShenKailaiInQingyuanApr19,cansitinsmallcagesInthefirstpicture:Apileofanimalshit(manure)Inthesecondpicture:AbagofchemicalfertilizerWhatarethedifferences?ComparetheoldandthemodernwaysoffeedingthecropsItisfreeorcostverylittleItiseasytobeput,
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