新核心高职行业英语农学资源包课件unit 4.pptx

新核心高职行业英语农学资源包课件unit 4.pptx

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Unit4HowMuchDoYouKnowaboutPlantdiseases?

I.FocusonthetopicII.VocabularystudyIIII.ReadingoneIV.Task-drivenpracticeV.ReadingtwoVI.WritingHowMuchDoYouKnowaboutPlantdiseases?IVII.DoItYourself(D.I.Y.)

Part1Focusonthetopic◆Pleaselistwordsorphrasesabouttheabovepictures.◆Doyouthinktheyaregoodorharmfulfortheplants?◆Generallyspeaking,whatarethewaystoavoidtheseplantdiseases?◆Dosomeresearchandlistthenamesofotherplantdiseases?

Part2Vocabularystudy1.Readthesentences.Thencirclethedefinitionoftheboldfacedwords.(1)Theplantdiseasereferstotheplantaffectedbybioticandabioticfactors.Climateandchemicalpollutionshouldbeincludedintheabioticfactors.Theabioticfactorsare_________.a.nonlivingfactorsb.thelivingfactors(2)Graymoldmakesthevegetablesthrowofftheirediblevalues;Whensomethingisedible,itis___________.a.uselessb.notdangeroustoeat(3)Powderymildewharmsavarietyofornamentalplants.Whentheplantsareornamental,theyare____________.a.uselessb.attractiveanddecorative

Part2Vocabularystudy(4)Infectiousdiseaseiscausedbybio-pathogenincludingfungus,bacteria,virus,plantnematodediseaseandparasiticseedplantetc.Infectiousdiseaseisadisease_________.a.canbetransmittedbyakindofcontactb.canbeeasilyandtimelyfound(5)Non-infectiousdiseaseiscausedbynon-livingthings,suchasnutrientdeficiency,thelackorexcessofmoisture.Deficiencyis_________.a.sufficiencyb.thelackof(6)Heroldcarwasunreliable,sothetripwasunpleasantbybreakdowns.Ifsomethinghasabreakdown,it__________.a.stillworksb.stopsworking

Part2Vocabularystudy(7)Bacterialinfectioncausesswelling,discoloration,andthenabadsmell.Discolorationisusedtodescribedsomething_________.a.moreattractiveb.lessattractive;lo

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