高中英语导学案与练习unit 2 working the land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-农业说服；劝说（persuasion）I’drather…I’dprefer…because…IfIhaveachoiceI’llchoose…Thisisgoodvaluebecause…It’sbetterto…Idon’tlike…because…Whattheadvantageof…?It’sagreatpitythat…Youneedto…Theadvantagesare…You’lltastethedifferencewhen…话题词句【高清课堂：】Gettoknowthefarmingsteps(rice)ploughthefieldsowseeds

2、/growyoungplantsinserttheyoungplantsintothefieldspraytheagriculturalchemicalsharvestrice拓展阅读Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder.Almosthalfoftheirworkerbeeshavedisappearedduringthepastseason.C.C.D.hasalsobeenreportedinIsrael,EuropeandSouthAmerica.Bees

3、flyawayfromthehiveandneverreturn.Sometimestheyarefounddead;othertimestheyareneverfound.Manycropsandtreesdependonpollinationbybeestohelpthemgrow.AnewreportsaysavirusmaybeatleastpartlyresponsibleforthedisorderinhoneybeecoloniesintheUnitedStates.ThisvirusiscalledIsraeliacuteparalysisvirus.Itwasfirstide

4、ntifiedinIsraelintwothousandfour.IanLipkinatColumbiaUniversityinNewYorkandateamreportedthenewfindingsinSciencemagazine.DoctorLipkinsaysthevirusmaynotbetheonlycause.Hesaysitmayworkwithothercausestoproducethecollapsedisorder.Theteamfoundthevirusincolonieswiththehelpofamapofhoneybeegenesthatwaspublishe

5、dlastyear.Theyexaminedthirtycoloniesaffectedbythedisorder.Theyfoundevidenceofthevirusintwenty-fiveofthem,andinonehealthycolony.Thenextstepisfurthertestingofhealthyhives.TheresearcherssuggestedthattheUnitedStatesmayhaveimportedthedisorderinbeesfromAustralia.Theysaythebeesmaycarrythevirusbutnotbeaffec

6、ted.TheideaisthatunlikemanyAmericanbees,theabilityofAustralianbeestofightdiseasehasnotbeenhurtbythevarroamite.Thisinsectattackshoneybees,whichcouldmakethedisordermorelikelytoaffectahive.Australianbeeproducersrejectthesesuspicions.AndsomeresearcherssuspectthatbeeproductionintheUnitedStatesisdownmainl

7、ybecauseoftheweather.Honeybeesgathernectarfromflowersandtrees.Thesweetliquidgivesthemfoodandmaterialtomakehoney.ButcoldweatherthisspringintheMidwestreducedtheflowofnectarinmanyflowers.Manybeesmayhaves