chemical-or-organic-farming优质课评比课件

李鸥丽水黎明中学First,buyorselecttheseedsfromthestore.Second,weneedtoplow（犁田）orturnoverthesoil.Third,wesowtheseedsinthesoil.Finally,wecanharvestourgrain.fertilizethesoiltoincreaseproductionofthecropsfertilizerfertilizerHowmanykindsoffertilizersdoyouknow?chemicalfertilizersnaturalfertilizerschemicalfarmingorganicfarmingchemicalfertilizersnaturalfertilizersBetter？ChemicalOrOrganicFarming?Task1Skimming（3mins）Findoutthemainideaofthesefourparagraphs.EffectofchemicalfertilizerProblemscausedbychemicalfertilizers.P1.P2.Farmersandcustomersturntoorganicfarming.(advantages)Othermethodstokeepthesoilfertile.P3.P4.1.Whyarechemicalfertilizerssopopularinfarmingtoday?A.Becausetheyarecheap.B.Theyareagreatwaytostopcropdiseaseandincreaseproduction.C.Theycancausedamagetotheland.D.Theyarebenefitforpeople’shealth.Task2ScanningParagraph12.Whatproblemscanbecausedbyusingchemicalfertilizers?First,theycan_________thelandby_________thehelpfulbacteriaandpests.Theyalso________intheground,__________inpeople’sbodiesand________cancerorotherillnesses.Inaddition,itusuallygrowstoofasttobefullof____________.Paragraph2damagekillingstaybuildupleadtonutrition1.Whatisorganicfarming?2.Whataretheadvantagesoforganicfarming?3.Whatarethemethodstokeepthesoilfertile?1.Organicfarmingisfarmingwithoutusinganychemicals.Haha,we'veturnedtoorganicfarming.Paragraph3&42.Whataretheadvantagesoforganicfarming?Thefarmers________keepingtheirsoilrich,________diseaseand_______theair,soil,waterandcrops_________chemicals.Paragraph3focusonreducingkeepingfreefromThemethodstokeepthesoilfertileusingnaturalwastefromanimalsasfertilizer.changingthekindofcropineachfield.plantingcropstousedifferentlevelsofsoil.plantinggrassbetweencropstoprevent…Thesamegoal:____________________________________________________________________________________________togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealth.Paragraph3&41234Inrecentdays,scientistshavediscoveredthatusing________fertilizersforalongtimecan_________________thelandandalsopeople'shealth.Thereareseveral__________causedbychemicalfertilizers.Theydamagetheland,stayinthewaterforalongtimewhichcan___________inpeople’sbodiesand____________manyillnesses.chemicalproblemscausedamagetobuildupFillintheblanksaccordingtothepassage.leadto________farmingisbecomingmorepopularwithsomefarmers.Organicfarmingdoesnotuseanychemicalsand_________keepingthesoilrich.Thisalso______theairandcrops___________chemicals.Therearemanyorganicfarming_________formakingthelandhealthyandproductive.Allofthesemethodstrytoproducegoodfoodandtokeeptheenvironmentandpeople’shealth.keepmethodsfocusonOrganicfreefrom请以“PlasticorClothbags?”为题模仿这篇文章的篇章结构和句子结构去写一篇说明文。DiscussionandpracticePlasticOrClothBags?Para1:Para2:Para3:Para4:Haveabriefintroductionofthepresentsituation.(Effects)Theproblemscausedbyusingplasticbags.Theadvantagesofusingclothbags.Conclusion.PlasticorClothBagsOverthepasthalfcentury,___________havebecomeverycommonin___________.______welcomedthemasa_________wayto____________.Recently,however,wehavebeenfindingthattheycancausedamageto___________,even_________,topeople’shealth.PlasticbagsourdailylifeWeconvenientcarrygoodsenvironmentworseHomework1.Readthetextmorecarefullyafterclass,andunderlinesomeusefullanguagepoints.2.Finishthewriting.Overthepasthalfcentury,…havebecomeverycommon….…welcomedthemasa…wayto….Recently,however,wehavebeenfindingthattheycancausedamageto…,even…,topeople’shealth.Whataresomeoftheproblemscausedby…?First,…,theyalso….Inaddition,…Withthesediscoveries,…arebeginningtoturnto….….