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年托福阅读全真试题2023年托福阅读全真试题2023Question1-8When JulesVerne wroteJourney to the Centerof theEarthin1864,there weremany conflictingtheories aboutthe natureof the Earths interior.Some geologiststhought that itcontained ahighly pressedball ofincandescent gas,whileothers suspectedthatitconsisted ofseparate shells,eachmade of a differentmaterial.Today,well overa centurylater,there isstill littledirect evidenceof whatlies beneathourfeet.Most ofour knowledgeoftheEarthsinteriores notfrommines orboreholes,but fromthe studyof seismicwaves一powerful pulsesof energyreleased byearthquakes.In itshigh levels,the mantleis relativelycool;Atgreater depths,high temperaturesmake therock behavemorelike aliquid thana solid.Deeper still,the pressureis evenmore intense,preventing therock frommeltingin spiteofahigher temperature.Beyond adepth ofaround2,900kilometers,a greatchangetakes placeand themantle gives way tothe core.Some seismicwavescannot passthrough thecore and others arebent byit.From this andotherevidence,geologists concludethat theoutercore isprobably liquid,with asolid center.It isalmostcertainly made of iron,mixed withsmaller amountsofother elementssuch asnickel.The conditionsin theEarths coremake ita farmore alienworldthan space.Its solidiron heartis subjectedtounimaginable pressureand hasa temperatureof about9,OOOoF.Although scientistscan speculateabout itsnature,neitherhumans normachines willever beable tovisit it.
1.The word“conflicting“in line2is closestinmeaning toAcontrollingB outdatedCopposingD important
2.What istoday1s richestsource ofinformation abouttheEarths interiorfor geologistsABoreholesB ShellsCSeismic wavesDMines
3.The word“There“in line16refers totheA mantleBcrustC seabedDEarths center.
4.Which ofthe followingisaprimary characteristicofthe EarthsmantleA Light,solid rockBUniformity ofpositionC Dramaticallyincreasing pressureDpressed,incandescent gas
5.The phrase“giveswayto“in line24is closestinmeaning toAruns alongBrubs againstCturns intoDfloats on
6.The wordit in line26refers toAmantleB coreCchangeD depth
7.Why doesthe authorstate inline30-31that theEarth1s core is“more alien“than spaceAGover entfunds arenot availableto studytheEarth1s core.B Scientistsarent interestedin thecharacteristicsof theEarth1s core.C Itis impossibleto gototheEarths coreto doresearch.D TheEarthf scoreismadeofelements thataredangerous tohumans.
8.The word“speculate“inline33is closestinmeaning toAreportB learnCworryD hypothesizeQuestion9-20。
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