Unit2WorkingthelandUsinglanguage,231.Masterthefollowingnewwords,phrasesandsentencesinusinglanguageproduction,bacteria,pest,nutrition,discovery,soil,rootregret,reduce,regretbuildup,keep…freefrom,leadto,focuson,inadditionSomeorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil…2.Learntheadvantagesoforganicfarming.,本课首先观看嘉世有机农业视频，引出本节题目“化学耕作还是农业耕作”。进而讨论化学耕作和有机耕作的概念。化学耕作的弊端是什么？为什么农民转而开始有机耕作？有机耕作通过什么方法来保持土地的肥沃？然后让学生听课文录音，了解短文的主旨以及各段的大意。最后讲解短文的语言点。最后通过改写的短文加深对本文的了解。讲解农业耕作是配有相关的视频，有助于学生理解。总结概括文章和段落大意，提高学生的理解和表达能力。听课文录音有助于学生听力水平的提高。,ReadingCHEMICALORORGANICFARMING?,Whatcanweharvest?Nopains,nogains.,嘉世有机农业,AddfertilizerintothesoilHowcanfarmersmaketheplantsgrowwell?,Howmanykindsoffertilizersdofarmersuse?naturalfertilizerorganicfarmingchemicalfertilizerchemicalfarmingTwokinds.Discussion:Whichkindoffarmingisbetter?Better,Let’slearnmoreaboutchemicalandorganicfarming!Listentothetapecarefully.usinglanguagereading,organicfarmingisbecomingmorepopular.Themainideaofthetext:FastReading,Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Problemscausedbychemicalfertilizers.ThemainideaofeachparagraphP1.P2.Farmersandcustomersturntoorganicfarming.Othermethodstokeepthesoilfertile.P3.P4.,CarefulReadingWhyarechemicalfertilizerssopopularinfarmingtoday?Becausetheyarecheap.Theyareagoodwaytostopcropdiseaseandincreaseproduction.Theycancausedamagetotheland.Theydogoodtopeople’shealth.ParagraphI,Chemicalfarmingadvantagesproblemscausestopcropdiseaseincreaseproductiondamagethelandbykillingthehelpfulbacteriaandpestsaswellastheharmfulones.affectcropsbystayinginthegroundandundergroundwaterforalongtimeleadtocancer/illnessesbybuildingupinpeople’sbodiesovertimehavelessnutritionbygrowingtoofastParagraph2,OrganicfarmingNaturalwastefromanimalsMakethesoilricherinmineralsandmorefertileAhealthysoilReducediseasesincropsHelpcropsgrowstrongandhealthyParagraph3,Organicfarmingmethodsadvantagesusenaturalwastemakethesoilrichinmineralschangethecropputmineralsbackintosoil,making…plantcropswithdifferentrootsusedifferentlevelsoflandplantgrassbetweencropsprevent…from…,anaturalfertilizerParagraph4,1.WhichstatementisWRONGaccordingtothetext?A.Allcropsareorganic.B.Recently,theterm“organicfarming”hasgainedanothermeaning.C.Allfarmersusefertilizers.D.Scientistsbelievesomechemicalfertilizersarebetterforpeople.Readagainandchoosethebestanswer.D,2.Whichisnotthereasonwhyorganicfarmersprefernaturalwastefromanimals?A.Itcankeepthefoodfreefromchemicals.B.Itcankeeptheair,soilandwaterfreefromchemicals.C.Itcankillharmfulpests.D.Itcanmakethesoilricherinmineral.C,3.Whatistheadvantageofusingchemicalfertilizers?A.Leavingchemicalsinthegroundforalongtimeisgoodforwatersupply.B.Theycangetthesoilexhausted.C.Theycankillhelpfulbacteria.D.Theycankillharmfulpest.D,4.Theorganicfarmersdothefollowingsexcept______.A.addingfertilizerswhichisrichinmineralB.changingcropseverytwoorthreeyearsC.plantingseedsindifferentlayersofthesoilD.plantinggrassbetweencropstopreventthesoilfrombeingblownawayA,1.Whatis“organicfarming”?Answerthequestions.Itreferstocropsgrowingwithnaturalratherthanchemicalfertilizers.2.Whatdoorganicfarmersprefertouseasfertilizer?Naturalwastefromanimals.,Becausepeasandbeanscanputmineralsbackintothesoil,makingitrichandhealthyandreadytogrowmorewheatorcorn.3.Whydoorganicfarmersgrowpeas orsoybeansaftercornorwheat?,4.Whatisthemaingoalforusingorganicfarmingmethods?TogrowgoodfoodandtoavoiddamagingTheenvironmentorpeople’shealth.,•Nouseofchemicalfertilizers•Awayfromindustrialareas•Awayfromdirtywatersupply•NoairpollutionAsummaryoforganicfarming:,FillintheblanksManyfarmerswelcome______fertilizersbecausetheyaregreatwaytostopcropdiseaseandincrease_________.Butthesechemicalcan____toillnesses.Sofarmersbegantoturnto______farming.They____onkeepingtheirsoilrichand_____ofdisease.Organicfarmersoftenpreferusing______wasteofanimalsasfertilizer.Thiskeepsthesoilfree____chemicals.Therearemanymethodstokeepthesoil_____.Themethodshavethesamegoal:togrowgoodfoodandavoiddamagingthe_________orpeople’shealth.chemicalproductionfocusfreenaturalfromfertileenvironmentleadorganic,1.Thesechemicalsinthefoodsupplybuildupinpeople’sbodiesovertime.LanguagePointsHardworkingconditionsbuildupcharacter.buildup增强;建立;开发艰苦的工作条件能磨练人的性格。,2.Manyofthesechemicalscanleadtocancerorotherillnesses.AllroadsleadtoRome.leadto导致；造成条条大道通罗马。,3.Theyfocusonkeepingtheirsoilrichandfreeofdisease.focuson:集中(注意力,精力等)于Youshouldfocusyourattentiononyourwork.把注意力集中在你的工作上。,4.Thisalsokeepstheair,soil,waterandcropsfreefromchemicals.4.Youmusttakecaretokeepthewoundfreefromthedirt.keeps…freefrom/of:使…免受(影响,伤害等);使不含(有害物)你必须照顾好伤口，免受灰尘的伤害。,5.reducev.减少,降低e.g.公司尽力通过减少花销来提高利润。Thecompanytriestoincreaseprofitsby_______________.今年我们已经减少了业务开支。We______________expensesthisyear.reducingcostshavereduced,Expressions1.化肥2.对…造成损害3.洗掉某物4.导致;造成(后果);通往5.逐渐增强,建立6.另外(还有)7.使…免受(影响);8.集中(注意力、精力)于9.每隔几年10.避免做…chemicalfertilizerscause/dodamagetowashoffleadtobuildupinaddition(to)keep…freefrom/offocusoneveryfewyearsavoiddoing,Exerciseswashoff,leadto,buildup,inaddition(to),keep…freefrom/of,focuson,avoiddoing1.Hismistakes______hisfailure.2.Thesechemicalsinthefoodsupply________inpeople’sbodiesovertime.3.Allroads_______Rome.4.Please_____yourmind___thefollowingproblem.5.Childrenshould________________violence.ledtobuildupfocusonleadtobekeptfreefrominadditionwashingoffavoidmeeting6.Helikesbasketball,__________,helikesfootball.7.LittleTomstuckto________themud____hisshoesbyhimselfbeforehecamein.8.Itriedto______________(meet)himbecausehealwaysboresme.,HomeworkWriteanarticleaboutfuturefarming.Thankyou!
