Period3UsingLanguageTeachinggoals教学目标1.EnableSstomasterthemainideaofthetextandknowthewaysoforganizingarticles.2.HelpSslearnhowtoenlargethewordsandstructuresofthesametopic.Teachingimportantanddifficultpoints教学重难点1.Howtograspthemainideaofthepassage.2.Howtograspthewordsandphrasesandbeabletousethemfreely.Teachingprocedures&ways教学过程与方法StepⅠLookatthepictures.Whatisthesubstanceweputonthesoilwhichmakescropsgrow?Howmanykindsoffertilizersdofarmersuse?Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyouknowaboutorganicfarming?StepⅡReading1.Scanthepassageandgetthemainidea.Chemicalfertilizerscancausemanyproblems,soorganicfarmingisbecomingmorepopular.2.Answerthefollowingquestionsafterreadthepassage.1.Whyarechemicalfertilizerssopopularinfarmingtoday?2.Whatproblemscanbecausedbyusingchemicalfertilizers?3.Whatisorganicfarming?4.Whatisthemainreasonforusingorganicfarmingmethods?Keys:1.Theyareagreatwaytostopcropdiseaseandincreaseproduction.2.Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople’shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.3.Organicfarmingmeansgrowingcropswithoutusinganychemicals.4.Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealth.3.Readthepassagecarefullyandfillintheblanks.ChemicalFarmingAdvantagesStoppingcropdiseaseandincrease__________ChemicalFarmingDisadvantagesDamagingtheland:Killingthehelpful______Damagingpeople’shealth:◆Manychemicalsinthefoodsupplycanleadtocancerorotherillnesses.◆Foodgrowstoofasttobefullofmuch________.Organicfarming____Togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealthOrganicfarmingMethods◆Using______wastefromanimalsasfertilizer◆Changing_________ineachfieldeveryfewyears◆Using_________ofsoiltoplantcrops◆Planting_____betweencropsStepⅢProjectPersuadefarmerstogrowthecropsbyorganicfarmingwiththeknowledgelearnt.Whatisorganicfarming?Whatfertilizershouldtheyuse?Why?Howtoplantthedifferentcrops?...StepⅣLanguagepointsStepⅤListening1.Whatisthemaintopicoftheconversation?Thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday.2.Listentothedialogueasecondtime.Decideifthefollowingstatementaretrueorfalse.1.PaulthinksthatCarrieisnottellinghimthetruth.2.Usingchemicalfertilizersalwaysmakesvegetablesemptyinside.3.Today’sfruitisnotashealthyforpeopleasfruitfiftyyearsago.4.Eatingmorevegetablesmightnotalwaysbegoodforus.5.Alloftoday’svegetableslookhealthybutinfactarenot.Keys:T,F,T,F,TStepⅥHomeworkWriteasummaryofthispassagefollowingtheprocedure.Step1:Skimthepassagetofinditsmainidea.Writeitdowninyourownwords.Step2:Findandunderlinethetopicsentenceofeachparagraph.Rewriteeachtopicsentence,usingyourownwords.Donotcopyfromthepassage!Step3:Writeyoursummary.Firstsatethemainideaofthepassageandthenthetopicscoveredbyeachparagraph.Remember,useyourownwords!
