usinglanguage.ppt

welcome Unit2Workingtheland Usinglanguage Ifyouarealandowner youwanttogrowsomekindsofcrops whatwillyoudo First buyorselecttheseedsfromthestore Second weneedtoplow 犁田 orturnoverthesoil Third wesow 播种 theseedsinthesoil Finally wecanharvestourgrain sorghum peanuts fertilizer Fertilizethesoil Toimprovetheoutputofthecrops Howmanykindsoffertilizersdofarmersuse fertilizer chemicalfertilizers Naturalfertilizers Therearetwokinds Theyarechemicalfertilizersandnaturalones chemicalfertilizersnaturalfertilizers Chemicalfarmingorganicfarming Better Reading ChemicalOrOrganicFarming Task1Skimming 3mins Findoutthemainideaofthesefourparagraphs P1 P2 P3 P4 Othermethodstokeepthesoilfertile Farmersandcustomersturntoorganicfarming Problemscausedbychemicalfertilizers Long termuseofchemicalfertilizerscancausedamagetothelandandpeople shealth Paragraph1 Manyfarmerswelcomedthemasagreatwaytostopcropdiseaseandincreaseproduction Chemicalfertilizers Task2Scanning Whyarechemicalfertilizerssopopularinfarmingtoday Whatproblemscanbecausedbyusingchemicalfertilizers Therearethreeproblems First theycandamage aswellas Theyalsostayinthe and Inaddition growtoofastto Tips connectives 连接词 andtransitionalphrases 过渡词 fordevelopment First second finally lastbutnotleast ect Paragraph2 Paragraph3 Whatisorganicfarming 1 Organicfarmingmeansgrowingcropswithoutusinganychemicals 2 Whataretheadvantagesoforganicfarming paragraph3 2 Whataretheadvantagesoforganicfarming Thefarmerskeepingtheirsoilrichandfreeofdiseaseandtheair soil waterandcrops chemicals focuson keeping freefrom Paragraph3and4 Themethodstokeepthesoilfertile 1 Usingnaturalwastefromanimalsasfertilizer 2 Changingthekindofcropineachfield 3 Plantingcropstousedifferentlevelsofsoil 4 Plantinggrassbetweencropstoprevent togrowgoodfoodandtoavoiddamagingtheenvironmentorpeople shealth Thesamegoal Summary Fillintheblanksaccordingtothepassage Inrecentdays scientistshavediscoveredthatusingfertilizersforalongtimecanhurtthelandandalsopeople s Thereareseveral causedbychemicalfertilizers Theyhurtthehealthoftheland inthewaterforalongtimeandgetintopeople s throughtheirfood bodies chemical health problems stay farmingisbecomingmorepopularwithsomefarmersandmany afterthesediscoveriescameout Organicfarmingdoesnotuseanychemicals Therearemanyorganicfarming formakingthelandhealthyandproductive Allofthesemethodstrytoproducegoodfoodandtokeepthe andpeople Organic customers methods environment healthy Consoildation Thestructureofthispassage Topic Presentsituation Prob