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ID:38301163
大小:5.38 MB
页数:24页
时间:2019-06-08
《unit2 Chemical or Organic Farming》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、ChemicalOrOrganicFarming?ReadingMadebyDuYiWordspreviewchemicalorganicfertilefertilizefertilizermineralnutritionadj.化学的;关于化学的adj.有机的;器官的adj.肥沃的,富饶的n.营养;滋养;食物n.矿物;矿石n.肥料;化肥vt.施肥Expressionspreviewbuildupleadtofocusonkeep…freefrom/of使…免受(影响,伤害等);使…不含(有害物)逐渐增强;建立;开发导致;造成(后果)集中(注意力,精力等)于Ifyou
2、werealandowner,youwanttogrowsomekindsofcrops,howwillyoudo?First,buyorselecttheseedsfromthestore.Second,weneedtoplow(犁田)orturnoverthesoil.Third,wesow(播种)theseedsinthesoil.Finally,wecanharvestourgrain/sorghum/peanuts.fertilizethesoiltoimprovetheoutputofthecropsfertilizerHowmanykindsofferti
3、lizersdofarmersuse?Andwhatarethey?ChemicalfertilizersnaturalwastefromanimalsWhichkinddofarmersusewhentheyaredoingorganicfarming?Thesecondone---naturalwastefromanimals________fertilizerscancausemany________,soorganicfarmingisbecomingmore________.ChemicalproblemspopularTogetthemainideaofth
4、ispassage.Listeningtask:Task1Skimming(3mins)Findoutthemainideaofthesefourparagraphs.Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Problemscausedbychemicalfertilizers.P1.P2.Farmersandcustomersturntoorganicfarming.Othermethodstokeepthesoilfertile.P3.P4.Para1:1.W
5、hyarechemicalfertilizerssopopularinfarmingtoday?2.Doyouthinkitisreallyagreatway?Theyareagreatwaytostopcropdiseaseandincreaseproduction.NoTask2ScanningWhatproblemscanbecausedbyusingchemicalfertilizers?(disadvantage)Firstly,theydamagethelandbykillingthehelpfulbacteriaandpests.Thirdly,fruit
6、,vegetablesandotherfoodgrownwithchemicalfertilizersusuallygrowtoofasttobefullofmuchnutrition.Para2:Secondly,Chemicals’stayinginthegroundandundergroundwaterforalongtimeaffectscropsand,therefore,animalsandhumans.Andmanyofthechemicalscanleadtocancerorotherillnesses.1.Whatisorganicfarming?2.
7、Whatistheadvantagesofusingnaturalfertilizer?Para3:1.Whatisorganicfarming?Organicfarmingissimplyfarmingwithoutusingany________.greenfoodchemicals2.Whatistheadvantagesofusingnaturalfertilizer?*Reducediseasesincropsandhelpthemgrowstrongandhealthy.*Makethesoilricherinminerals
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