高中英语 Unit 2《Working the land》教案（4） 新人教版必修4VIP专享VIP免费

Unit2WorkingthelandTheThirdPeriodExtensiveReadingTeachinggoals教学目标1.Targetlanguage目标语言a.重点词语chemical,bacteria,pest,leadto,discovery,nutrition,keep…freefrom,rootb.重点句型Withthesediscoveries,somefarmerandmanycustomersarebeginningtoturntoorganicfarming.Overthepasthalfcentury,usingchemicalfertilizershasbecomeverycommoninfarming.2.Abilitygoals能力目标EnableSstomasterthemainideaofthetextandknowthewaysoforganizingarticles.3.Learningabilitygoals学能目标HelpSslearnhowtoenlargethewordsandstructuresofthesametopic.Teachingimportantanddifficultpoints教学重难点1.Howtograspthemainideaofthepassage.2.Howtograspthewordsandphrasesandbeabletousethemfreely.Teachingmethods教学方法Showquestions,readfast,findthemainideas,andthenreadcarefullyandfinishallthetasks.Teachingaids教学准备Arecorderandaprojector.Teachingprocedures&ways教学过程与方法StepⅠLeading–in★Enjoyabeautifulsong★Aquiz&FillblanksT:Morning,boysandgirls!Gladtoseeyou!Beforelearning,Letusenjoyabeautifulsong.Whatisthissongabout?Yes,itisabouttheagriculture.Agriculturecanprovideuswithfood.Canyoutellme;doyouhavehealthyfoodeveryday?Ishealthyfoodimportanttous?Ss:Yeah!Gladtoseeyou!Yes,Ithinkthatthefoodweeateverydayishealthyfood!Ithinkhealthyfoodisimportanttousall!(First,Letstudentstastesomedeliciousfoodandguesswhatthefoodare?)T:Goodjob!Really?First,letushaveaquiz.Iwouldlikesomestudentscomeheretotastethefoodinthisplateandtellusthenameofthefood.Remember,youneedcloseyoureyesbeforeyoutastethefood.Ss:OK.T:Aretheydelicious?ThisfoodisgreenfoodthatIbroughtfromSuperMarketyesterday.Ok,boysandgirls!Listentomecarefully!Everybodyknowsthataspeople’slivingconditionimproves,moreandmorepeopleareconcernedaboutwhattheyeat.Becausemoreandmorefarmersusechemicalfertilizerinsteadofnaturalwastefromanimalsandtheyusepoisontokillinsectstoprotecttheirplants.Sopeoplenowallwanttoeatgreenfoodwhichdoesnoharmtotheirhealth.Well,Howdoyouunderstandgreenfood?Doyouknowtheadvantagesofgreenfood?Letushaveacompetition.Twogroups,thegroupwhichcangetthehighestmarkswillbethewinner,Areyouclear?Ss:Advantagesofgreenfood*tastedelicious*grownincleanair*freeofppollution*richinnutrition*dogoodtopeople’shealthandtheenvironmentT：Welldone!Everyone.Canyoutellmewhichkindoffarmingmakesgreenfood?ChemicalorOrganicFarming?Ss:OrganicFarming!T:Great!Youdidagoodjob!Well,letusreadthetextonP14andknowsomethingaboutorganicfarming.StepⅡPre–readingT:Beforereadingthetext,pleaselookatthepicturefirstandpredictwhatthepassageabout.Thenhavefreetalksonwhatcanyouseeinthepicture?Ss:Thepicturemaybeaboutagriculture.Wecanseegreenfield,mountainsandtalltrees.wealsocanseesomeanimals,suchaschickens,pigs,geese,andducksandsoon.Notfaraway,amanisdrivingatractortoplowingfields.T：Excellent!Now,beforereadingthepassage,Letreadtheboldwordwordsinthetextloudly.Ss:chemical,production…StepⅢFastReadingT：Letusreadthetextfirstandthenfinishthefollowingquestionsafterreadingthepassage.Youonlyhave3minutes.Questions:1.Whyarechemicalfertilizerssopopularinfarmingtoday?2.Whatproblemscanbecausedbyusingchemicalfertilizers?3.Whatisorganicfarming?4.Whatisthemainreasonforusingorganicfarmingmethods?Answers:1.Theyareagreatwaytostopcropdiseaseandincreaseproduction.2.Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople’shealthbybuildingupintheirbodiesandleadingto...