高考话题十六第二节

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1、第二节话题阅读StepOne真题深度阅读训练真题体验（2017-全国III,阅读理解C）Afteryearsofheateddebate,graywolveswerereintroducedtoYellowstoneNationalPark.FourteenwolveswerecaughtinCanadaandtransportedtothepark.Bylastyear,theYellowstonewolfpopulationhadgrowntomorethan170wolves・GraywolvesoncewereseenhereandthereintheYellows

2、toneareaandmuchofthecontinentalUnitedStates,buttheyweregraduallydisplacedbyhumandevelopment.Bythe1920s,wolveshadpracticallydisappearedfromtheYellowstonearea.TheywentfarthernorthintothedeepforestsofCanada,wheretherewerefewerhumansaround.Thedisappearanceofthewolveshadmanyunexpectedresults.De

3、erandelkpopulations一majorfoodsources（来源）forthewolf—grewrapidly.Theseanimalsconsumedlargeamountsofvegetation（植被），whichreducedplantdiversityinthepark.Intheabsenceofwolves,coyotepopulationsalsogrewquickly.Thecoyoteskilledalargepercentageoftheparksredfoxes,andcompletelydroveawaythepark，sbeaver

4、s・Asearlyas1966,biologistsaskedthegovernmenttoconsiderreintroducingwolvestoYellowstonePark.Theyhopedthatwolveswouldbeabletocontroltheelkandcoyoteproblems.Manyfarmersopposedtheplanbecausetheyfearedthatwolveswouldkilltheirfarmanimalsorpets.Thegovernmentspentnearly30yearscomingupwithaplantore

5、introducethewolves.TheU.S.FishandWildlifeServicecarefullymonitorsandmanagesthewolfpacksinYellowstone.Today,thedebatecontinuesoverhowwellthegraywolfisfittinginatYellowstone.Elk,deer,andcoyotepopulationsaredown,whilebeaversandredfoxeshavemadeacomeback.TheYellowstonewolfprojecthasbeenavaluabl

6、eexperimenttohelpbiologistsdecidewhethertoreintroducewolvestootherpartsofthecountryaswell.语篇解读本文是一篇说明文。以前在黄石地区随处可见的灰狼消失后引发了一系列生态问题。生物学家建议重新引入狼群，但附近农场主反对。政府花了近30年时间研究计划重新引入狼群，这一案例对其他地区也有借鉴意义。28.Whatisthetextmainlyabout?A.WildliferesearchintheUnitedStates.A.PlantdiversityintheYellowstonearea

7、.B.Theconflictbetweenfarmersandgraywolves.C.ThereintroductionofwolvestoYellowstonePark.答案D解析主旨大意题。文章主要围绕重新将灰狼引入黄石公园展开讨论。故选D项。28.Whatdoestheunderlinedword“displaced”inParagraph2mean?A.Tested.B.Separated・C-Forcedout.D.Trackeddown.答案c解析词义猜测题。根据上文可知，灰狼曾经随处可见，再结合后文