2019-2020年高中英语《Unit2 Working the land》教案（3）新人教版必修4

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1、2019-2020年高中英语《Unit2Workingtheland》教案（3）新人教版必修4Teachinggoals教学目标1.EnableSstomasterthemainideaofthetextandknowthewaysoforganizingarticles.2.HelpSslearnhowtoenlargethewordsandstructuresofthesametopic.Teachingimportantanddifficultpoints教学重难点1.Howtograspthemainideaoft

2、hepassage.2.Howtograspthewordsandphrasesandbeabletousethemfreely.Teachingprocedures&ways教学过程与方法StepⅠLookatthepictures.Whatisthesubstanceweputonthesoilwhichmakescropsgrow?Howmanykindsoffertilizersdofarmersuse?Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyo

3、uknowaboutorganicfarming?StepⅡReading1.Scanthepassageandgetthemainidea.Chemicalfertilizerscancausemanyproblems,soorganicfarmingisbeingmorepopular.2.Answerthefollowingquestionsafterreadthepassage.1.Whyarechemicalfertilizerssopopularinfarmingtoday?2.Whatproblemscanb

4、ecausedbyusingchemicalfertilizers?3.Whatisorganicfarming?4.Whatisthemainreasonforusingorganicfarmingmethods?Keys:1.Theyareagreatwaytostopcropdiseaseandincreaseproduction.2.Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwat

5、erforalongtime.Theydamagepeople’shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.3.Organicfarmingmeansgrowingcropswithoutusinganychemicals.4.Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealt

6、h.3.Readthepassagecarefullyandfillintheblanks.ChemicalFarmingAdvantagesStoppingcropdiseaseandincrease__________ChemicalFarmingDisadvantagesDamagingtheland:Killingthehelpful______Damagingpeople’shealth:◆Manychemicalsinthefoodsupplycanleadtocancerorotherillnesses.◆F

7、oodgrowstoofasttobefullofmuch________.Organicfarming____Togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealthOrganicfarmingMethods◆Using______wastefromanimalsasfertilizer◆Changing_________ineachfieldeveryfewyears◆Using_________ofsoiltoplantcrops◆Planting___

8、__betweencropsStepⅢProjectPersuadefarmerstogrowthecropsbyorganicfarmingwiththeknowledgelearnt.Whatisorganicfarming?Whatfertilizershouldtheyuse?Why?Howto