2018年高考英语一轮复习Unit5Themeparks高考题（含解析）新人教版必修4

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1、Unit5Themeparks2017年新课标卷III・C体裁话题词数难度建议时间说明文美国黄石公园重新引进灰狼295★★★☆☆7，Afteryearsofheateddebate,graywolveswerereintroducedtoYellowstoneNationalPark.FourteenwolveswerecaughtinCanadaandtransportedtothepark・Bylastyear,theYellowstonewolfpopulationhadgrowntomorethan170wolves.Graywolvesoncewer

2、eseenhereandthereintheYellowstoneareaandmuchofthecontinentaiUnitedStates,buttheyweregradual1ydisplacedbyhumandevelopmont.Bythe1920s,wolveshadpracticallydisappearedfromtheYellowstonearea.TheywentfarthernorthintothedeepforestsofCanada,wheretherewerefewerhumansaround・Thedisappearanceof

3、thewolveshadmanyunexpectedresuIts.Deerandelkpopulations—majorfoodsources（来源）forthewolf一grewrapidly・Theseanimalsconsumcdlargeamountsofvegetation（植被），whichreducedplantdiversityinthepark.Intheabsenceofwolves,coyotepopulationsalsogrewquickly.Thecoyoteskilledalargepercentageofthepark"sre

4、dfoxes,andcompletelydroveawaythepark"sbeavers.Asearlyas1966,biologistsaskedthegovernmenttoconsiderreintroducingwolvestoYel1owstonePark・Theyhopedthatwolveswou1dbeabletocontroltheelkandcoyoteproblems.ManyfarmersopposedtheplanbecausetheyfearedthatwolveswouldkilltheirfarmanimaIsorpets.T

5、hegovernmentspentnearly30yearscomingupwithaplantoreintroducethewolvers.TheU・S・FishandWildlifeServicecarefullymonitorsandmanagesthewolfpacksinYel1owstone.Today,thedebatecontinuesoverhowwel1thegraywolfisfittinginatYellowstone.Elk,deer,andcoyotepopulationsareclown,whilebeaversandredfox

6、eshavemadeacomeback.TheYellowstonewolfprojecthasbeenavaluableexperimenttohelpbiologistsdecidewhethertoreintroducewolvestootherpartsofthecountryaswell.28.Whatisthetextmainlyabout?A.Wild!iferesearchintheUnitedStates.B.PlantdiversityintheYellowstonearea.C・Theconflictbetweenfarmersandgr

7、aywolves・D.ThereintroductionofwolvestoYellowstonePark.29.Whatdoestheunderlinedword”displacedMinparagraph2mean?A.Tested.B.Separated.C.Forcedout.D.Trackeddown・30・Whatdidthedisappearaneeofgraywolvesbringabout?A・Damagetolocalecology.B・Adeclineinthepark'sincome-C.Preservationofvegetation

8、.D.Anincreaseinthev