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ID:31232988
大小:425.50 KB
页数:7页
时间:2019-01-07
《高中英语导学案与练习unit2workingtheland话题语言应用-农业_设计》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
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)ploughthefieldsow
2、seeds/growyoungplantsinserttheyoungplantsintothefieldspraytheagriculturalchemicalsharvestrice拓展阅读Americanbeekeepingoperationshavebeenhithardbywhatscientistscallcolonycollapsedisorder.Almosthalfoftheirworkerbeeshavedisappearedduringthepastseason.C.C.D.hasalsobeenreportedinIsrael,EuropeandSouthAm
3、erica.Beesflyawayfromthehiveandneverreturn.Sometimestheyarefounddead;othertimestheyareneverfound.Manycropsandtreesdependonpollinationbybeestohelpthemgrow.AnewreportsaysavirusmaybeatleastpartlyresponsibleforthedisorderinhoneybeecoloniesintheUnitedStates.ThisvirusiscalledIsraeliacuteparalysisviru
4、s.ItwasfirstidentifiedinIsraelintwothousandfour.IanLipkinatColumbiaUniversityinNewYorkandateamreportedthenewfindingsinSciencemagazine.DoctorLipkinsaysthevirusmaynotbetheonlycause.Hesaysitmayworkwithothercausestoproducethecollapsedisorder.Theteamfoundthevirusincolonieswiththehelpofamapofhoneybee
5、genesthatwaspublishedlastyear.Theyexaminedthirtycoloniesaffectedbythedisorder.Theyfoundevidenceofthevirusintwenty-fiveofthem,andinonehealthycolony.Thenextstepisfurthertestingofhealthyhives.TheresearcherssuggestedthattheUnitedStatesmayhaveimportedthedisorderinbeesfromAustralia.Theysaythebeesmayc
6、arrythevirusbutnotbeaffected.TheideaisthatunlikemanyAmericanbees,theabilityofAustralianbeestofightdiseasehasnotbeenhurtbythevarroamite.Thisinsectattackshoneybees,whichcouldmakethedisordermorelikelytoaffectahive.Australianbeeproducersrejectthesesuspicions.Andsomeresearcherssuspectthatbeeproducti
7、onintheUnitedStatesisdownmainlybecauseoftheweather.Honeybeesgathernectarfromflowersandtrees.Thesweetliquidgivesthemfoodandmaterialtomakehoney.ButcoldweatherthisspringintheMidwestreducedtheflowofnectarinmanyflowers.Manybeesmayhaves
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