高一英语人教版必修4教案Working the land学案.doc

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1、Unit2WorkingthelandPeriod4Usinglanguage:ExtensivereadingTeachingaims:I.Topics:ChemicalororganicfarmingII.Usefulwordsandexpressions:Chemical,production,bacteria,pest,nutrition,mineral,discovery,focus,soil,reduce,root,skim,underline,summary,comment,buildup,leadto,focuson,keep...fr

2、eefrom/ofIII.Abilityandemotion1.DevelopSs’readingskillsbyextensivereadingandenablethemtolearnhowtousedifferentreadingskillstoreaddifferentreadingmaterials.2.HaveSstellaboutmodernagricultureandorganicfarming.3.LetSshaveabetterunderstandingoforganicfarmingandpayattentiontothequali

3、tyoffoodweeat.Step1LeadinginAskSswhattheyknowaboutorganicfarming.Collecttheirideasontheblackboard.Step2SkimmingAskSstoskimthepassageandfindthemainideaofthispassageandeachparagraph.Paragraph&passageMainideaParagraph1Paragraph2Paragraph3Paragraph4PassageStep3Scanning1AskSstoscanth

4、epassagetolocateparticularinformationandanswerthefollowingquestionsinExercise1anthenfillintheformaboutthemethodsandadvantagesinExercise2.MethodsoforganicfarmingAdvantagesofmethods1.Farmersusenaturalwastefromanimal.Thismakesthesoilricherinmineralsandsomorefertile.5Step4Carefulrea

5、dingAskSstoreadthepassagecarefullyandthenwriteasummaryofthepassagefollowingtheprocedureinExercise3.1).Whatisorganicfarming?2).Whatproblemsarecausedbyusingchemicalfertilizers?3).Whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat?Step5RetellingNowpleaseretellthetextaccordingto

6、thefollowingchart,youcandiscussingroups.Organicfarming1.Cropsgrowingwithnaturalfertilizers.2.Farmersprefernaturalwastefromanimals.①make...richerandmorefertile①leaving...isnotgood②reduce...andhelp...strong②grow...yearafteryear③thefertilizerskill...andhealthy④keepfree...from

7、chemicalsStep6LanguagepointsTeacherexplainstheimportantwordsandexpressionsfromthereading.Trytouseasmanyexamplesaspossibletoillustratethepoint.Afterillustration,teachercangivestudentssomeexercisetoconsolidatetheirunderstanding.LanguagePoints1.Manyfarmerswelcomedthemasagreatwa

8、ytostopcropdiseaseandincreaseproduction.很多农民喜欢使