unit2woringthe 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：】Ge

2、ttoknowthefarmingsteps(rice)ploughthefieldsowseeds/growyoungplantsinserttheyoungplantsintothefieldspraytheagriculturalchemicalsharvestrice拓展阅读Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder.Almosthalfoftheirworke

3、rbeeshavedisappearedduringthepastseason.C.C.D.hasalsobeenreportedinIsrael,EuropeandSouthAmerica.Beesflyawayfromthehiveandneverreturn.Sometimestheyarefounddead;othertimestheyareneverfound.Manycropsandtreesdependonpollinationbybeestohelpthemgrow.Anewre

4、portsaysavirusmaybeatleastpartlyresponsibleforthedisorderinhoneybeecoloniesintheUnitedStates.ThisvirusiscalledIsraeliacuteparalysisvirus.ItwasfirstidentifiedinIsraelintwothousandfour.IanLipkinatColumbiaUniversityinNewYorkandateamreportedthenewfinding

5、sinSciencemagazine.DoctorLipkinsaysthevirusmaynotbetheonlycause.Hesaysitmayworkwithothercausestoproducethecollapsedisorder.Theteamfoundthevirusincolonieswiththehelpofamapofhoneybeegenesthatwaspublishedlastyear.Theyexaminedthirtycoloniesaffectedbythed

6、isorder.Theyfoundevidenceofthevirusintwenty-fiveofthem,andinonehealthycolony.Thenextstepisfurthertestingofhealthyhives.TheresearcherssuggestedthattheUnitedStatesmayhaveimportedthedisorderinbeesfromAustralia.Theysaythebeesmaycarrythevirusbutnotbeaffec

7、ted.TheideaisthatunlikemanyAmericanbees,theabilityofAustralianbeestofightdiseasehasnotbeenhurtbythevarroamite.Thisinsectattackshoneybees,whichcouldmakethedisordermorelikelytoaffectahive.Australianbeeproducersrejectthesesuspicions.Andsomeresearcherssu

8、spectthatbeeproductionintheUnitedStatesisdownmainlybecauseoftheweather.Honeybeesgathernectarfromflowersandtrees.Thesweetliquidgivesthemfoodandmaterialtomakehoney.ButcoldweatherthisspringintheMidwestreducedtheflowofnectarinmanyflowers.Manybeesmayhaves