高中英语 Period 3　Extensive Reading（Unit 2 Working the land）优秀教案 新人教版必修4VIP免费

Period3ExtensiveReadingTheGeneralIdeaofThisPeriodThisperiodisaboutthereadingofthepassages:Organicfarming.Itcanhelpthestudentslearnsomethingmoreaboutthemodernagriculture.TeachingImportantPointsHelpthestudentstounderstandthepassagesandrealizetheimportanceoforganicfarming.TeachingDifficultiesHowtoimprovethestudents’readingability.Howtohelpthestudentsunderstandtheadvantagesoforganicfarming.TeachingMethodsAsking-and-answeringactivitytocheckthestudents’understandingofthetext;individual,pairorgroupworktofinisheachtask.TeachingAidsAtaperecorderAmulti-mediacomputerandablackboardThreeDimensionalTeachingAimsKnowledgeandSkillsTrainthestudents’readingability.Learnsomeusefulwordsanddrill.Enablethestudentstoknowthedifferencesbetweenorganicfarmingandchemicalfarming.ProcessandStrategiesPairworktotalkabouttheadvantagesoforganicfarming.Individualworktofinisheachtask.FeelingsandValueThroughthereadingofthispassagethestudentsmayhaveabetterunderstandingoftheadvantagesoforganicfarming.Itisimportantaspeoplearemoreandmoreconcernedaboutthequalityofthefoodweeat.TeachingProceduresStep1Warmingup1.Greetings2.Checktheanswersoftheexercisesaboutthe-ingformasthesubjectandobject.Step2ReadingforstructureT:IntheReadingpartwelearntsomethingaboutplantingrice,butdoyouknowwhatisthebestwaytoplantrice?Ss:...T:Todaywe’lllearnapassageaboutorganicfarming.Nowpleasereadthetextandtrytofindoutthemainideaofeachparagraph.I’llgiveyoufiveminutes.(fiveminuteslater)T:WhowouldliketotellmethemainideaofParagraphOne?S:It’s“Whatis‘organicfarming’?”T:That’sright.HowaboutParagraphTwo?S:Themainideais“Thefertilizerthatorganicfarmerspreferisnaturalwastefromanimals”.T:Thankyouforyourgoodanswers.Let’scometothenextparagraph.S:Themainideaforthelastparagraphis“Organicfarmerschangecropseverytwoorthreeyears”.T:Everyonehasdoneagoodjob,Ihopeeveryonegotalltheanswersbyyourself.Step3ReadingfordetailsT:Nowpleasereadthepassageagain,andtrytofindalltheanswersforthefollowingquestions:1.Whatisorganicfarming?2.Whatproblemsarecausedbyusingchemicalfertilizers?3.Whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat?T:Finish?Anyonegetstheanswerforthequestions?Suggestedanswers:1.Organicfarmingmeansgrowingcropswithoutchemicalfertilizers.2.Therearethreeproblems.First,chemicalfertilizersaffectthesoilandthewatersupplybadly.Second,theyallowfarmerstogrowthesamecropyearafteryearandexhaustthesoil.Third,theykillbothhelpfulandharmfulpests.3.Farmersgrowpeasorsoybeansaftercornorwheatsothatpeasandbeanscanputmineralsbackintothesoil,makingitrichandhealthyandreadytogrowmorewheatorcorn.Step4ExtensiveReadingT:Pleasereadthetextforthethirdtime,thenfillinthefollowingtable.(Fiveminuteslatertheteacherchecktheanswersonebyone.)AdvantagesoforganicfarmingReason1.Farmersusenaturalwastefromanimals.1.Thismakesthesoilricherinmineralsandsomorefertile.2.Thesoilisnotexhausted.2.Peasandsoybeansrenewthemineralsinthesoilanditbecomesrichandhealthy.3.Theyusethesoiltobestadvantage.3.Theyplantcropsthatneedsurfacesoilandnextcropsthatgrowatadeeperlevel.Sothewindandwaterdoesn’tcarryawaythesoil.Alltherichnessofthesoilisused.Step5RetellingT:Nowpleaseretellthetextaccordingtothefollowingchart,youcandiscussingroups.Organicfarming1.Cropsgrowingwithnaturalfertilizers.2.Farmersprefernaturalwastefrom...