2017考研英语一新题型密押模拟题（三）

相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排>>>2017年考研大纲下载及解析汇总>>>2017年全国硕士研究生招生简章专题新东方网校推荐：2017年考研政治、英语、数学课程！！点击进入免费试听>>environment.Ilovethediversityofmyjob.Everydayisdifferent.Mosttasksrequirecreativity.NowthatIamanexperiencednaturalist,IhavethefreedomtoplanmyowndayandmakedecisionsaboutthetypesofprogramsthatweofferatPeninsula.42._____________Inmyfirstnaturalistjob,Ispentfouroutoffivedaysleadingschoolfieldtripsandvisitingclassrooms.AsastateparknaturalistIstillworkwithstudents,butmoreoftenleadprogramslikebirdwalks,naturecrafts,outdoorskills,andtrailhikes.Ialsofindmyselfincreasinglyinvolvedinmanagementdecisions.Forexample,sometimestheparknaturalististhepersonwhoknowswhererareorchidsgroworwhereravensnest.Whendecisionsaremadeaboutcuttingtrees,buildingtrails,orcreatingmorecampsites.naturalistsareaskedtogivethe“ecologicalperspective.”43._____________PerhapsthegrossestthingI’vedoneasanaturalististoboilanimalskulls.Visitorslikeseeingbonesandskins—atleastaftertheyhavebeencleanedup!Once,ournaturecenterneededmoreskulls.Atrappergavememuskrat,raccoonandfoxskullsbutIhadtocleanthem.First,Iboiledtheskinandmeatoff.Boy,didthatstink!ThenIuseddissectingtoolsandoldtoothbrushestocleanouttheeyeballs.Finally,Isoakedtheskullsinableachsolution.I’vehadsomeembarrassingexperiences,too.OnmyfirsthikeasPeninsula’snewnaturalist,IwassoexcitedthatIidentifiedawhitepinetreeasaredpinetree!That’squiteamistakesincethetreesaresoeasytotellapart.Whitepineneedlesareinbundlesoffiveandredpineneedlesareinbundlesoftwo.44._____________NotallstateparksareasbusyorasbigasPeninsula.NotallparknaturalistsspendtheseasonsasIdo.Nevertheless,parknaturalistssharecertaincommoninterestsandresponsibilities:Aparknaturalistmightnoticethatbranchesofaredmaplegrowinginafieldreachouttothesidewhilethoseofaredmapleinathickforestreachup,andwonderwhythetreeslookdifferent.Anaturalistmakesthingshappen.Itmightbeworkingwithworkerstocleanuppartofariver.Parknaturalistsshareknowledgeindifferentways,butallofthemcommunicatewithpeople.Aloveoflearning--fromotherpeople,fromplantsandanimals,frombooks,andmore—isanessentialquality.Mostnaturalistsdon’tworkinplacesofrarebeauty.Manyworkincityparksorinplacesthatshow“wearandtear.”Ifyoucanwonderaboutaninchworm,ajuniperbush,orarobinandcauseotherstowonder,too,thenyouarereadytobecomeaparknaturalist.45._____________Ifyouthinkyouwanttobecomeaparknaturalist,dothefollowing:Exploreyourhomelandscape.Knowinghowpeoplehaveshapedthelandwhereyoulive-andhowthelandhasshapedthem-willlendacomparisonthatwillserveyouwell.Startafieldsketchbook.Sketchwhatyousee,whereandwhen.Thereasonisnottopracticeartskills(thoughyoumaydiscoveryouhaveatalent)but,rather,topracticeobservationskills.Gotocollege.Youwillneeda4-yeardegree.Thereareseveralacademicroutesthatleadtothenaturalist’sroad.Ihavefoundornithology,planttaxonomyandhumangrowthanddevelopmenttobeamongmymosthelpfulcourses.Listenandlearn.Acollegedegreeislikeaticket.Itletsyouboardtheplanebutisonlythebeginningofthejourney.Lookandlistentothosewhohavealreadytraveledtheroadforideas,knowledgeandinspiration.Passage2Directions:Readingthefollowingandanswerquestionsbyfindingasubtitleforeachofthemarkedpartsorparagraphs.Therearetwoextraitemsinthesubtitle.MarkyouransweronANSWERSHEET.(10points)A.TheconsequenceoflosingbonesB.AbetterlabthanonearthC.TwodifferentcasesD.MultipleeffectsformweightlessnessE.HowtoovercomeweightlessnessF.FactorsthatarenotsosureDuringweightlessness,theforceswithinthebodyundergodramaticchange.Becausethespineisnolongercompressed,peoplegrowtaller.Thelungs,heartandotherorganswithinthechesthavenoweight,andasaresult,theribcageandchestrelaxandexpand.Similarly,theweightsoftheliver,kidneys,stomachandbowelsdisappear.Oneastronautsaidafterhisflight:“Youfeelyourgutsfloatingup.Ifoundmyselftighteningmybelly,sortofpushingthingsback。”41.Meanwhilemusclesandbonescometobeusedindifferentways.Ourmusclesaredesignedtosupportuswhenstandorsituprightandtomovebodyparts.Butinspace,musclesusedforsupportonthegroundarenolongerneededforthatpurpose;moreover,themusclesusedformovementaroundacapsuledifferfromthoseusedforwalkingdownahall.Consequently,somemusclesrapidlyweaken.Thisdoesn’tpresentaproblemtospacetravelersaslongastheyperformonlylightwork.ButpreventingthelossofmuscletissuerequiredforheavyworkringspacewalksandpreservingmuscleforsafereturntoEartharethesubjectofmanycurrentexperiments。Studieshaveshownthatastronautslosebonemassfromthelowerspine,hipsandupperlegatarateofabout1percentpermonthfortheentirerationoftheirtimeinspace.Somesites,suchastheheel,losecalciumfasterthanothers.Studiesofanimalstakenintospacesuggestthatboneformationalsodeclines。42.Needlesstosay,thesedataareindeedcauseforconcern.Duringspaceflight,thelossofboneelevatescalciumlevelsinthebody,potentiallycausingkidneystonesandcalciumcrystalstoforminothertissues.Backontheground,thelossofbonecalciumstopswithinonemonth,butscientistsdonotyetknowwhetherthebonerecoverscompletely:toofewpeoplehaveflowninspaceforlongperiods.Somebonelossmaybepermanent,inwhichcaseex-astronautswillalwaysbemorepronetobrokenbones。43.ThesequestionsmirrorthoseinourunderstandingofhowthebodyworkshereonEarth.Forexample,elderlywomenarepronetoalossofbonemass.Scientistsunderstandthatmanydifferentfactorscanbeinvolvedinthisloss,buttheydonotyetknowhowthefactorsactandinteract;thismakesitdifficulttodevelopanappropriatetreatment.Soitiswithbonelossinspace,wheretherightprescriptionstillawaitsdiscovery。44.Manyotherbodysystemsareaffecteddirectlyandindirectly.Oneexampleisthelung.Scientistshavestudiedthelunginspaceandlearnedmuchtheycouldnothavelearnedinlaboratoriesonearth.Onthegroundthetopandbottompartsofthelunghavedifferentpatternsofairflowandbloodflow.Butarethesepatternstheresultonlyofgravity,oralsoofthenatureofthelungitself?Onlyrecentlyhavestudiesinspaceprovidedclearevidenceforthelatter.Evenintheabsenceofgravity,differentpartsofthelunghavedifferentlevelsofairflowandbloodflow。

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相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g

相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g

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相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g

相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g

相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g

相关推荐：>>>2017年考研现场确认时间及地点汇总>>>全国各地2017年考研报考点汇总>>>2017年考研时间、研究生考试时间安排&g