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1、2010年12月英语四级考试模拟试卷及答案(1)PartIWriting(30minutes) Directions:Forthispart,youareallowed30minutestowriteacompositiononthetopic:ToBeaSmallFishinaBigPondoraBigFishinaSmallPond?Youshouldwriteatleast120wordsfollowingtheoutlinegivenbelowinChinese: 1.在大企业工作的特点 2.在小企业工作的特点 3.我的选择 ToBeaSma
2、llFishinaBigPondoraBigFishinaSmallPond? PartIIReadingComprehension(SkimmingandScanning)(15minutes)ToSaveTrees,FightingOneAlienInsectwithOthers Rustyrheasighswistfullyashetalksaboutthebeautyandpeaceofstandingamidagrove(小树林)ofdeepgreenhemlocksinAppalachia,someofthemupto160feet(50met
3、ers)tallandmorethan500yearsold. "Thisisaveryspecialtree,"saidRhea,anentomologistfortheU.S.ForestService'sForestHealthProtectionprograminAsheville,NorthCarolina,"Iwasbroughtuphere,andIdon'twanttoseeanotherspeciesgobythewayside." Theevergreentrees,ahallmarkofsouthernAppalachia'snati
4、onalparks,areunderattackbyaninvasiveinse4ctbarelyvisibletotheeyebutpotentenoughtofellthegiantsoftheeasternUnitedStates'old-growthforests. AlreadythetinybugfromJapan,knownasthehemlockwoollyadelgid(HWA),haskilledupwardof95percentofthehemlocksinVirginia'sShenandoahNationalPark.Nowthey
5、aremakingtheirwaythroughthehalf-million-plus-acre(200,000-plus-hectare)GreatSmokyMountainsNationalParkinNorthCarolinaandTennessee. Thehemlocksshadestreams,keepingwatertemperaturesjustrightforbrooktrout(鲑鱼)andotherfish.Theyalsohousebirdssuchastheblack-throatedgreenwarbler,solitaryvi
6、reo,andnortherngoshawk,allthreeofwhichmainlyshelterinstandsofhemlocktrees. Becauseoftheinsect'sbroadimpactontheentireecosystemofsouthernAppalachia,HWAstandstocausewiderdamagethantheAmericanchestnutblight(枯萎病)oftheearly1900s.ThatfungusfromEuropekilledofftheoncedominantchestnuttreesf
7、romthenortheastUnitedStatestothesouthernAppalachianMountains. Inaddition,aspeciesrelatedtoHWA,thebalsamwoollyadelgid,hasalreadykilledabout90percentofthematureFraserfirtreesintheSmokies.ActingQuickly HWAarrivedintheU.S.PacificNorthwestvianurseryplantsfromJapanin1924.By1951thetinyin
8、vaderhadbeenfoundin