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《as a young man, paul beier hiked in the mountains of california. 阅读理解答案》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、Asayoungman,PaulBeierhikedinthemountainsofCalifornia.阅读理解答案 Asayoungman,PaulBeierhikedinthemountainsofCalifornia.Sincethen,hehasdecidedtochoosehiscareerasawildlifeprotector.Hewenttoschooltolearnmorefirstofall.Afterheearnedhisdoctor’sdegree,heeagerlysignedupforajobstudyingco
2、ugars(美洲狮),whichoncelivedthroughouttheUnitedStates,butnowlivemainlyintheRockyMountainsandwestward. Theyneednotonlyalotoflandtosurvivebutalsoplentyoffoodandplacestoraisetheiryoung.Butmanywildareashavebeendividedbyfreewaysandtakenoverbytowns.ThesmallwildernessareasoftheSantaA
3、naMountainsinSouthernCaliforniadidn’thavemuchroomforthem.Andyetafewstilllivedthere.Howdidtheydoit? Manybiganimalsaredisappearing.Thosethatsurvivearebeingtrappedinshrinkingpatches(小块土地)ofhabitat.Apatchmaynothaveenoughspaceorfoodforacougartosurvive.Scientistswonderedifcougars
4、couldmovefromonepatchtoanother.Ifso,maybehumanscould preservewildlifecorridors(走廊)toconnectthepatches,providingenoughroomfortheanimals.Butnoonehadshownthatanimalsusewildlifecorridorsinreallife. Toseeifcougarshadfoundcorridorsthroughlocalsuburbsandfreeways,Paulandhisresea
5、rchteamstudied32cougarsforfiveyears.Theyusedadrugtomakeeachcatsleep,buckledaradiocollararounditsneck,andletitgo.Everyday,Paulusedanelectricaldevicethatsendsandreceivesradiosignalstofindcougars,listeningforradiobeepsfromtheircollars.Onceortwiceaweek,hetrailedoneofthecougarsal
6、lnight.Hetracedtheirtravelsonamap.Sureenough,someofthemhaddiscoveredpathsfromonesmallparklandtothenext. Onecougarbecamefamousforhistravels.HewasnamedM6:”M”forMale,and”6”becausehewasthesixthonecollaredinthestudy.M6’scorneroftheSantaAnaMountainswasn’tlargeenoughforhim.ChinoHi
7、llsStateParkwasnotfaraway,butthetripwasnotsafe.Afterd ark,M6usedapavedvehicleundergroundpassagetocrossunderabusyeight-lanefreeway.Heslippedbyaridingstable,andthenpickedhiswaythroughagolfcourseandacrosstwosetsofbusyrailroadtracks.Finally,hearrivedintheshelteredcanyonsof12,
8、000-acreChinoHillsStatePark.There,thecougarfounddeertohunt.Duringayearandah
