话题语言应用--农业

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1、语言积累交际用语话题语言应用-农业Youneedto…Theadvantagesare…You，11tastethedifferencewhen…说服；劝说(persuasion)I'drather…I'dprefer••-because•••IfIhaveachoiceI，11choose…Thisisgoodvaluebecause…It，sbetterto…Idon,tlike…because••-WhattheadvantageoF…?It/sagreatpitythat•••话题词句Gettoknowthefarmingst

2、eps(rice)ploughthefieldsowseeds/growyoungplantsinserttheyoungplantsintothefieldspraytheagriculturalchemicalsharvestrice拓展阅读Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder・Almosthalfoftheirworkerbeeshavedisappearedduringthepastseason

3、.C.C・D.hasalsobeenreportedinIsrael,EuropeandSouthAmerica.Beesflyawayfromthehiveandneverreturn.Sometimestheyarefounddead;othertimestheyareneverfound・Manycropsandtreesdependonpollinationbybeestohelpthemgrow.Anewreportsaysavirusmaybeatleastpartlyresponsibleforthedisorderin

4、honeybeecoloniesintheUnitedStates.ThisvirusiscalledIsraeliacuteparalysisvirus・ItwasfirstidentifiedinIsraelintwothousandfour・lanLipkinatColumbiaUniversityinNewYorkandateamreportedthenewfindingsinSciencemagazine.DoctorLipkinsaysthevirusmaynotbetheonlycause.Hesaysitmaywork

5、withothercausestoproducethecollapsedisorder.Theteamfoundthevirusincolonieswiththehelpofamapofhoneybeegenesthatwaspublishedlastyear.Theyexaminedthirtycoloniesaffectedbythedisorder.Theyfoundevidenceofthevirusintwenty-fiveofthem,andinonehealthycolony.Thenextstepisfurtherte

6、stingofhealthyhives.TheresearcherssuggestedthattheUnitedStatesmayhaveimportedthedisorderinbeesfromAustralia・Theysaythebeesmaycarrythevirusbutnotbeaffected・TheideaisthatunlikemanyAmericanbees,theabilityofAustralianbeestofightdiseasehasnotbeenhurtbythevarroamite.Thisinsec

7、tattackshoneybees,whichcouldmakethedisordermorelikelytoaffectahive.Australianbeeproducersrejectthesesuspicions.AndsomeresearcherssuspectthatbeeproductionintheUnitedStatesisdownmainlybecauseoftheweather.Honeybeesgathernectarfromflowersandtrees.Thesweetliquidgivesthemfood

8、andmaterialtomakehoney.ButcoldweatherthisspringintheMidwestreducedtheflowofnectarinmanyflowers・Manybeesmayhave