2021年职称英语考试理工C真题(4)

职称英语考试理工C真题(4)xx年职称英语考试理工C真题Hansenfoundsoot'seffectonsnowalbedo(反照率),which___ybecontributingtotrendstowardearlyspringsintheNorthernHemisphere,suchasthinninbgArcticseai___andmeltingglaciersper___frost.Sootalsoisbelievedtoplayaroleinchangesintheatmosphereabovetheo___ansandland."Blackcarbonredu___stheamountofenergyreflectedbysnowbackintospa___,thusheadingthesnowsu______morethaniftherewerenoblackcarbon,"Hansensaid.Soot'sincreasedabsorptionofsolarenergyisespeciallyeffetiveinwarmingtheworld'scli___te."Thisforcingisunusuallyeffective,causingtwi___asmuchglobalwarmingasacarbon-dioxideforcingofthesame___gnitude."Hansennoted.Hansencautioned

,althoughtheroleofsootinalteringglobalcli___teissubstantial,itdoesnotalterthefactthatgreenhousegasesarethepri___rycauseofcli___tewarmingduringthepast___ntury.Suchgasesareexpectedtobithelargestcli___teforcingfortherestofthe___ntury.TheresearchersfoundthatobservedwarmingintheNorthernHermispherewaslargeinthewinterandspringatmiddleandhighlatitudes.Theseobservationswerecoherentwiththeresearchers'cli___temodelsituations,whichshowedsomeofthelargestwarmingeffectsourredwhentherewereheavysnowcoverandsufficientsunlight.36.【题干】WhichofthefollowingstatementsofsootisNOTtrue?A.Itabsorbssun'sheat.B.Itisresponsibleforcli___techange.C.Itreflectssun

light.D.It___yaountforaquarterofglobalwarmingoverthepast___ntury.37.【题干】Whichofthefollowingareasshowsagreaterwarmingeffect?A.I___seaareas.B.Areaswithblackcarbon.C.Areascoveredwithwhitesnow.D.Meltingglaciers.38.【题干】"Thisforcing"inParagraph5refersto?A.sun'sheatingonsnowsu______.B.soot'sincreasedabsorptionofsolarenergy.C.carbon-dioxide'swarmingeffect.D.snow'sincreasedreflectionofsunlight.39.【题干】Whatisthe___incauseofcli___tewarmingduringthepast___ntury?A.Soot.B.Snow.C.Greenhousegases.D.Wind.40.【题干】ThelargestwarmingeffectshappenedintheNorthernHemispherewithA.Xseai___andinsufficientsunlight.B.lightsnowcoverandsufficientsunlight.C.heavy

snowcoverandsufficientsunlight.D.thickseai___andinsufficientsunlight.ARecord-BreakingRoverNASA’sMarsroverOpportunityhasboldlygonewherenoroverhasgonebefore—atleastintermsofdistan___.Sin___arrivingontheRedPlainxx,Opportunityhastraveled25.01miles,morethananyotherwheeledvehiclehasonanother&nnbsp;world.OnJuly27,afteryearsofmovingaboutonMartianground,thegolf-cart-sizedOpportunityhaddrivenmorethan24miles,beatingthepreviousrecordholder—aSovietroversenttothemoonin1973.“Thisissore___rkableconsideringOpportunitywasintendedtodriveabout1kilometerandwasneverdesignedfordistan___,”saysJohnCallas,theMarsExplorationRoverProjectManager.HeworksatNAS

A’sJetPropulsionLaboratoryinPasadena,California.“Butwhatisreallyimportantlyisnothow___nymilestheroverhasrackedup,buthowmuchexplorationanddiscoverywehaveaomplishedoverthatdistan___.”OPPORTUNITYThesolar-poweredOpportunityanditstwinrover,Spirit,landedonMars10yearsagoonamissionexpectedtolast3months.Theobjectiveoftheroverswastohelpscientistslearnmoreabouttheplaandtosearchforsignsoflife，suchasthepossiblepresen___ofwater.SpiritstoppedmunicatingwithEarthinMarchxx,afewmonthsafteritgotstuckinasandpit.ButOpportunityhascontinuedtocollectand___yzeMartiansoilandrocks.Duringitsmission,Opportunityhascaptured,andsentbacktoEarth,some187,000panoram

icandmicroscopici___gesofMarswithitscameras.Ithasalsoprovidedscientistswithdataonthepla’satmosphere,soil,rocks,andterrain.MARATHONROVERTheroverdoesn’tseemtobereadytostopjustyet.IfOpportunitycancontinueon,itwillreachanother___jorinvestigationsitewhenitsodometerhits26.2miles.ScientistscallthissiteMarathonValley,becausewhentheroverreachesthearea,itwillhavetraveledthesamedistan___asthelengthofa___rathonsin___itsarrivalonMars.ResearchersbelievethatclaymineralsexposednearMarathonValleycouldholdcluestoMars’sancientenviro___ent1.Opportunity’scontinuingtravelswillalsohelpresearchersastheyplanforaneventualhu___nmissiontotheRedPla.模板,内容仅供参考