下学期unit19period2reading高一英语课件
日期：2010-02-15 02:04
Unit19ModernAgriculturePeriod2ReadingTask1Pre-readingLookatthepicturesonPage45andcomparetraditionalandmodernfarmingWhatcanyouseeinthepictures?2Whataretheadvantagesanddisadvantagesofeachway?Inthefirstpicture:Achicken/AhenInthesecondpicture:AfarmerfeedingchickensInthethirdpicture:AmodernchickenfarmWhatarethedifferences?ComparetheoldandthemodernwaysofraisingchickensAfarmercanonlykeepafewchickensAfactorycankeepthou-sandsofchickensItcostonlyalittlemoneyItcostalottostartafactorydon’thavemanyproblemsifill，manydieorarekilledTheeggsandmeataretastyTheydon’ttastesodeliciousThechickensarefreenotfree，cansitinsmallcagesInthefirstpicture:Apileofanimalshit(manure)Inthesecondpicture:AbagofchemicalfertilizerWhatarethedifferences?ComparetheoldandthemodernwaysoffeedingthecropsItisfreeorcostverylittleItiseasytobeputintothefieldsItusuallyhasabadsmellIttakeslittleplacetostoreItisdifficulttocarryandmoveItisexpensivetobuyItneedslotsofwor，
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