托福听力模拟试题及答案卷四.docx
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托福听力模拟试题及答案卷四.docx
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托福听力模拟试题及答案卷四
2021年托福听力模拟试题及答案(卷四)
Theobservationoftheskieshasplayedaspecialpartinthelivesandculturesofpeoplessincetheearliestoftimes.EvidenceobtainedfromasiteknownastheHoleintheRock,inPapagoParkinPhoenix,Arizona,indicatesthatitmighthavebeenusedasanobservatorybyaprehistoricpeopleknownastheHohokam.
Thephysicalattributesofthesiteallowitsuseasanaturalcalendar/clock.The"hole"atHoleintheRockisformedbytwolargeoverhangingrockscomingtogetheratapoint,creatingashelterwithanopeninglargeenoughforseveralpersonstopassthrough.Thenortheast-facingoverhanghasasmalleropeninginitsroof.Itisthissmallerholethatproducestheattributesthatmayhavebeenusedasacalendar/clock.
Becauseofitslocationintheshelter'sroof,abeamofsunlightcanpassthroughthissecondholeandcastaspotontotheshelter'swallandfloor.Thisspotoflighttravelsfromwesttoeastasthesunmovesacrossthesky.ItalsomovesfromnorthtosouthandbackagainastheEarthtravelsaroundtheSun,thewest-to-eastmovementcouldhavebeenusedtoestablishadailyclock,muchlikeasundial,whilethenorth-to-southmovementcouldhavebeenusedtoestablishaseasonalcalendar.
Thespotfirstappearsandstartsdownthesurfaceofthewalloftheshelteratdifferenttimesofthemorningdependingonthetimeoftheyear.Thespotgrowsinsizefromitsfirstappearanceuntilitsmaximumsizeisachievedroughlyatmidday.Itthencontinuesitsdownwardmovementuntilitreachesapointwhereitjumpstotheflooroftheshelter.AstheSuncontinuestomovetothewest,thespotcontinuestomoveacrosstheshelterflooranddownthebutte,orhill,towardagroupofsmallboulders.Ifapersonisseatedonacertainoneoftheserocksasthespotreachesit,theSuncanbeviewedthroughthecalendarhole.Thisoccursatdifferenttimesintheafternoondependingonthetimeofyear.
1.Whatdoesthepassagemainlydiscuss?
(A)observationsofthestarsbyancientpeople
(B)rockformationsofArizona
(C)asiteusedbyancientpeopletomeasuretime
(D)themovementoftheeartharoundtheSun
2.Theword"obtained"inline2isclosestinmeaningto
(A)acquired
(B)transported
(C)covered
(D)removed
3.Theword"attributes属性,特征"inline5isclosestinmeaningto
(A)changes
(B)characteristics
(C)locations
(D)dimensions
4.Theword"its"inline10refersto
(A)roof
(B)beam
(C)hole
(D)spot
5.Theword"establish"inline15isclosestinmeaningto
(A)create
(B)locate
(C)consult
(D)choose
6.WhichofthefollowingisNOTtrueofthespotoflight?
(A)Itiscausedbysunlightpassingthroughahole.
(B)Ittravelsacrosstheroofoftheshelter.
(C)ItsmovementisaffectedbythepositionoftheSun.
(D)Itmovementcouldhavebeenusedtoestimatethetimeofday.
7.Fromwhichofthefollowingcanbethetimeofyearbedetermined?
(A)Themovementofthespotoflightfromwesttoeast
(B)Thespeedwithwhichthespotoflightmoves
(C)Themovementofthespotoflightfromnorthtosouth
(D)Thesizeofthesportoflightatmidday
8.Theword"roughly粗糙地"inline18isclosestinmeaningto
(A)finally
(B)harshly
(C)uneasily
(D)approximately
9.ThepassagementionsthattheHoleintheRockwasusedasallofthefollowingEXCEPT
(A)acalendar
(B)ahome
(C)aclock
(D)anobservatory
10.Whichofthefollowingcanbeinferredfromthefourthparagraph?
(A)Thebouldersarelocatedbelowtherockshelter.
(B)Thepersonseatedontherockcannotseetheshelter.
(C)Afteritpassestheboulders,thespotoflightdisappears.
(D)Thespotoflightislargestwhenitfirstappears.
答案:
CABCABCDBA
Thelargestofthegiantgasplanets,Jupiter,withavolume1,300timesgreaterthanEarth's,containsmorethantwicethemassofalltheotherplanetscombined.Itisthoughttobeagaseousandfluidplanetwithoutsolidsurfaces,Haditbeensomewhatmoremassive,Jupitermighthaveattainedinternaltemperaturesashighastheignitionpointfornuclearreactions,anditwouldhaveflamedasastarinitsownright.Jupiterandtheothergiantplanetsareofalow-densitytypequitedistinctfromtheterrestrialplanets:
theyarecomposedpredominantlyofsuchsubstancesashydrogen,helium,ammonia,andmethane,unliketerrestrialplanets.MuchofJupiter'sinteriormightbeintheformofliquid,metallichydrogen.Normally,hydrogenisagas,butunderpressuresofmillionsofkilogramspersquarecentimeter,whichexistinthedeepinteriorofJupiter,thehydrogenatomsmightlocktogethertoformaliquidwiththepropertiesofametal.SomescientistsbelievethattheinnermostcoreofJupitermightberocky,ormetalliclikethecoreofEarth.
Jupiterrotatesveryfast,onceevery9.8hours.Asaresult,itsclouds,whicharecomposedlargelyoffrozenandliquidammonia,havebeenwhippedintoalternatingdarkandbrightbandsthatcircletheplanetatdifferentspeedsindifferentlatitudes.Jupiter'spuzzlingGreatRedSpotchangessizeasithoversintheSouthernHemisphere.Scientistsspeculateitmightbeagigantichurricane,whichbecauseofitslargesize(theEarthcouldeasilyfitinsideit),lastsforhundredsofyears.
JupitergivesofftwiceasmuchheatasitreceivesfromtheSun.Perhapsthisisprimevalheatorheatgeneratedbythecontinuedgravitationalcontractionoftheplanet.AnotherstarlikecharacteristicofJupiterisitssixteennaturalsatellites,which,likeaminiaturemodeloftheSolarSystem,decreaseindensitywithdistance—fromrockymoonsclosetoJupitertoicymoonsfartheraway.IfJupiterwereabout70timesmoremassive,itwouldhavebecomeastar,Jupiteristhebest-preservedsampleoftheearlysolarnebula,andwithitssatellites,mightcontainthemostimportantcluesabouttheoriginoftheSolarSystem.
1.Theword"attained获得,达到"inline4isclosestinmeaningto
(A)attempted
(B)changed
(C)lost
(D)reached
2.Theword"flamed"inline5isclosestinmeaningto
(A)burned
(B)divided
(C)fallen
(D)grown
3.Theword"they"inline7refersto
(A)nuclearreactions
(B)giantplanets
(C)terrestrial
(D)substances
4.Accordingtothepassage,hydrogencanbecomeametallic-likeliquidwhenitis
(A)extremelyhot
(B)combinedwithhelium
(C)similartoatmospheres
(D)undergreatpressures
5.Accordingtothepassage,somescientistsbelieveJupiterandEartharesimilarinthattheybothhave
(A)solidsurfaces
(B)similarmasses
(C)similaratmospheres
(D)metalliccores
6.ThecloudssurroundingJupiteraremostlycomposedof
(A)ammonia
(B)helium
(C)hydrogen
(D)methane
7.ItcanbeinferredfromthepassagethattheappearanceofalternatingbandscirclingJupiteriscausedby
(A)theGreatRedSpot
(B)heatfromtheSun
(C)theplanet'sfastrotation
(D)Stormsfromtheplanet'sSouthernHemisphere
8.Theauthorusestheword"puzzling"inline17tosuggestthattheGreatRedSpotis
(A)theonlyspotofitskind
(B)notwellunderstood
(C)amongthelargestofsuchspots
(D)aproblemfortheplanet'scontinuedexistence
9.Paragraph3supportswhichofthefollowingconclusions?
(A)JupitergivesofftwiceasmuchheatastheSun.
(B)Jupiterhasaweakergravitationalforcethantheotherplanets.
(C)ScientistsbelievethatJupiterwasonceastar.
(D)ScientistsmightlearnaboutthebeginningoftheSolarSystembyStudyingJupiter.
10.Whydoestheauthormentionprimevalheat(lines21)?
(A)ToprovideevidencethatJupiterisolderthantheSun
(B)ToprovideevidencethatJupiterisolderthantheotherplanets
(C)TosuggestapossibleexplanationforthenumberofsatellitesthatJupiterhas
(D)TosuggestapossiblesourceofthequantityofheatthatJupitergivesoff
11.Accordingtothepassage,Jupiter'smostdistantmoonis
(A)theleastdense
(B)thelargest
(C)warmonthesurface
(D)veryrockyonthesurface
12.Whichofthefollowingstatementsissupportedbythepassage?
(A)IfJupiterhadfewersatellites,itwouldbeeasierforscientiststostudytheplanetitself.
(B)IfJupiterhadhadmoremass,itwouldhavedevelopedinternalnuclearreactions.
(C)IfJupiterhadbeensmaller,itwouldhavebecomeaterrestrialplanet.
(D)ifJupiterwerelarger,itwouldgiveoffmuchlessheat
1答案:
DABDDACBDDAB
Asthetwentiethcenturybegan,theimportanceofformaleducationintheUnitedStatesincreased.Thefrontierhadmostlydisappearedandby1910mostAmericanslivedintownsandcities.Industrializationandthebureaucratizationofeconomiclifecombinedwithanewemphasisuponcredentialsandexpertisetomakeschoolingincreasinglyimportantforeconomicandsocialmobility.Increasingly,too,schoolswereviewedasthemostimportantmeansofintegratingimmigrantsintoAmericansociety.
ThearrivalofagreatwaveofsouthernandeasternEuropeanimmigrantsattheturnofthecenturycoincidedwithandcontributedtoanenormousexpansionofformalschooling.By1920schoolingtoagefourteenorbeyondwascompulsoryinmoststates,andtheschoolyearwasgreatlylengthened.Kindergartens,vacationschools,extracurricularactivities,andvocationaleducationandcounselingextendedtheinfluenceofpublicschoolsoverthelivesofstudents,manyofwhominthelargerindustrialcitieswerethechildrenofimmigrants.Classesforadultimmigrantsweresponsoredbypublicschools,corporations,unions,churches,settlementhou
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