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1、語言積累交際用語話題語言應用-農(nóng)業(yè)說服；勸說（persuasion）I’drather…I’dprefer…because…IfIhaveachoiceI’llchoose…Thisisgoodvaluebecause…It’sbetterto…Idon’tlike…because…Whattheadvantageof…?It’sagreatpitythat…Youneedto…Theadvantagesare…You’lltastethedifferencewhen…話題詞句【高清課堂：】Gettoknowthefarmi
2、ngsteps(rice)ploughthefieldsowseeds/growyoungplantsinserttheyoungplantsintothefieldspraytheagriculturalchemicalsharvestrice拓展閱讀Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder.Almosthalfoftheirworkerbeeshavedisappearedduringthep
3、astseason.C.C.D.hasalsobeenreportedinIsrael,EuropeandSouthAmerica.Beesflyawayfromthehiveandneverreturn.Sometimestheyarefounddead;othertimestheyareneverfound.Manycropsandtreesdependonpollinationbybeestohelpthemgrow.Anewreportsaysavirusmaybeatleastpartlyresponsiblefo
4、rthedisorderinhoneybeecoloniesintheUnitedStates.ThisvirusiscalledIsraeliacuteparalysisvirus.ItwasfirstidentifiedinIsraelintwothousandfour.IanLipkinatColumbiaUniversityinNewYorkandateamreportedthenewfindingsinSciencemagazine.DoctorLipkinsaysthevirusmaynotbetheonlyca
5、use.Hesaysitmayworkwithothercausestoproducethecollapsedisorder.Theteamfoundthevirusincolonieswiththehelpofamapofhoneybeegenesthatwaspublishedlastyear.Theyexaminedthirtycoloniesaffectedbythedisorder.Theyfoundevidenceofthevirusintwenty-fiveofthem,andinonehealthycolon
6、y.Thenextstepisfurthertestingofhealthyhives.TheresearcherssuggestedthattheUnitedStatesmayhaveimportedthedisorderinbeesfromAustralia.Theysaythebeesmaycarrythevirusbutnotbeaffected.TheideaisthatunlikemanyAmericanbees,theabilityofAustralianbeestofightdiseasehasnotbeen
7、hurtbythevarroamite.Thisinsectattackshoneybees,whichcouldmakethedisordermorelikelytoaffectahive.Australianbeeproducersrejectthesesuspicions.AndsomeresearcherssuspectthatbeeproductionintheUnitedStatesisdownmainlybecauseoftheweather.Honeybeesgathernectarfromflowersan
8、dtrees.Thesweetliquidgivesthemfoodandmaterialtomakehoney.ButcoldweatherthisspringintheMidwestreducedtheflowofnectarinmanyflowers.Manybeesmayhaves
