题型组合训练八（A）阅读理解阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。A(2017课标全国Ⅲ)Afteryearsofheateddebate,graywolveswerereintroducedtoYellowstoneNationalPark.FourteenwolveswerecaughtinCanadaandtransportedtothepark.Bylastyear,theYellowstonewolfpopulationhadgrowntomorethan170wolves.GraywolvesoncewereseenhereandthereintheYellowstoneareaandmuchofthecontinentalUnitedStates,buttheyweregraduallydisplacedbyhumandevelopment.Bythe1920s,wolveshadpracticallydisappearedfromtheYellowstonearea.TheywentfarthernorthintothedeepforestsofCanada,wheretherewerefewerhumansaround.Thedisappearanceofthewolveshadmanyunexpectedresults.Deerandelkpopulations—majorfoodsources(来源)forthewolf—grewrapidly.Theseanimalsconsumedlargeamountsofvegetation(植被),whichreducedplantdiversityinthepark.Intheabsenceofwolves,coyotepopulationsalsogrewquickly.Thecoyoteskilledalargepercentageofthepark’sredfoxes,andcompletelydroveawaythepark’sbeavers.Asearlyas1966,biologistsaskedthegovernmenttoconsiderreintroducingwolvestoYellowstonePark.Theyhopedthatwolveswouldbeabletocontroltheelkandcoyoteproblems.Manyfarmersopposedtheplanbecausetheyfearedthatwolveswouldkilltheirfarmanimalsorpets.Thegovernmentspentnearly30yearscomingupwithaplantoreintroducethewolves.TheU.S.FishandWildlifeServicecarefullymonitorsandmanagesthewolfpacksinYellowstone.Today,thedebatecontinuesoverhowwellthegraywolfisfittinginatYellowstone.Elk,deer,andcoyotepopulationsaredown,whilebeaversandredfoxeshavemadeacomeback.TheYellowstonewolfprojecthasbeenavaluableexperimenttohelpbiologistsdecidewhethertoreintroducewolvestootherpartsofthecountryaswell.1.Whatisthetextmainlyabout?A.WildliferesearchintheUnitedStates.B.PlantdiversityintheYellowstonearea.C.Theconflictbetweenfarmersandgraywolves.D.ThereintroductionofwolvestoYellowstonePark.2.Whatdoestheunderlinedword“displaced”inparagraph2mean?A.Tested.B.Separated.C.Forcedout.D.Trackeddown.3.Whatdidthedisappearanceofgraywolvesbringabout?A.Damagetolocalecology.B.Adeclineinthepark’sincome.C.Preservationofvegetation.D.Anincreaseinthevarietyofanimals.4.Whatistheauthor’sattitudetowardstheYellowstonewolfproject?A.Doubtful.B.Positive.C.Disapproving.D.Uncaring.答案[语篇解读]本文是一篇记叙文。文章讲述的是,经过多年的激烈争论之后,灰狼又回到了黄石国家公园。1.D主旨大意题。文章第一段第一句为文章的主题句,文章围绕其展开,讲述的就是黄石国家公园再次引入灰狼这件事,故答案选D。2.C词义猜测题。根据第二段第一句和第二句可知,答案选C。灰狼曾经在黄石地区随处可见,可后来由于人类的发展,该种群被渐渐驱离这里。3.A推理判断题。根据第三段可以推断灰狼的消失对生态造成了破坏。4.B推理判断题。由文章最后一段最后一句话中的avaluableexperiment可知,作者觉得这个项目很有价值,说明作者的态度是积极的。BOnthemorningofSeptember7th,19-year-oldRyanHarrisand40-year-oldStonieHuffman,twoSitka,Alaskaresidents,tookoffontheir28-footboatinsearchoffish.Twomilesintotheocean,theirboatbegantohavesomeproblems.Theymanagedtofixtheproblems,butdecidedtoheadbacktoshoreanyway.However,beforetheycouldcallforhelporgrabalifejacket,aneight-footwaveslammedhardagainsttheirboatandoverturnedit,throwingbothmenintothecoldAlaskanwaters.Stranded,theybegantolookaroundtoseewhattheycouldgrabontoandsawacoupleofemptyfishingboxesfromtheboat,floatingaround.Ryanmanagedtoclimbinsideone.Stonie,however,wasnotasluckyandmanagedtoonlygrabontothelidofthebox.Soon,theybothstarteddriftingapart.W...
