2019.6六级真题第三套

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2019 年6月大学英语六级考试真题(第3套)

Part I Writing (30 minutes)

Directions: For this part, you are allowed 30 minutes to write an essay on the importance of motivation and

methods in learning. You should write at least 150 words but no more than 200 words.

____________________________________________________________________________________________

PartⅡ Listening Comprehension (30 minutes)

说明：由于 2019 年6月六级考试全国共考了 2套听力，本套真题听力与前 2套内容完全一样，只是

顺序不一样，因此在本套真题中不再重复出现。

Part Ⅲ Reading Comprehension (40 minutes)

Section A

Directions:In this section, there is a passage with ten blanks. You are required to select one word for each blank

from a list of choices given in a word bank following the passage. Read the passage through carefully before

making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for

each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank

more than once.

Steelisvaluedforitsreliability,butnotwhenitgetscold.Mostformsofsteel26 becomebrittle (脆的)at

temperaturesbelowabout-25℃unlesstheyaremixedwithothermetals.Now,though,anoveltypeofsteelhas

beendevelopedthatresists27 atmuchlowertemperatures,whileretainingitsstrengthandtoughness—without

theneedforexpensive28 .

Steel’sfragilityatlowtemperaturesfirst became  a  major  concernduringtheSecondWorldWar.After

German  U-boats torpedoed (用鱼雷攻击 )  numerous  British  ships,  a  2,700-strong  fleet  of  cheap-and-

cheerful“Libertyships”wasintroducedtoreplacethelostvessels,providingalifelineforthe29 British.Butthe

steelshellsofhundredsoftheships30 intheicynorthAtlantic,and12brokeinhalfandsank.

Brittlenessremainsaproblemwhenbuildingsteelstructuresincoldconditions,suchasoilrigsintheArctic.

Soscientistshave31 tofindasolutionbymixingitwithexpensivemetalssuchasnickel.

YuujiKimuraandcolleaguesinJapantriedamorephysical32 . Ratherthanaddingothermetals,they

developedacomplexmechanicalprocessinvolvingrepeatedheatingandveryseveremechanicaldeformation,

knownastempforming.

Theresultingsteelappearstoachieveacombinationofstrengthandtoughnessthatis33 tothatofmodem

steelsthatareveryrichinalloycontentand,therefore,veryexpensive.

Kimura’steamintendstouseitstempformedsteeltomakeultra-highstrengthparts,suchasbolts.Theyhope

toreduceboththenumberof34 neededinaconstructionjobandtheirweight—byreplacingsolidsupportswith

35  tubes,forexample.Thiscouldreducetheamountofsteelneededtomakeeverythingfromautomobilesto

buildingsandbridges.

A)abruptlyI)cracked

B)additivesJ)fractures

C)approachK)hollow

D)ardentlyL)relevant

E)besiegedM)reshuffled

F)channelN)strived

G)comparableO)violent

H)components

Section B

Directions:In this section, you are going to read a passage with ten statements attached to it. Each statement

contains information given in one of the paragraphs. Identify the paragraph from which the information is

derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Answer the

questions by marking the corresponding letter on Answer Sheet 2.

The future of personal satellite technology is here—are we ready for it?

A)Satellitesusedtobetheexclusiveplaythingsofrichgovernmentsandwealthycorporations.Butincreasingly,

asspacebecomesmoredemocratized,theyarecomingwithinreachofordinarypeople.Justlikedrones (无人

机)beforethem,miniaturesatellitesarebeginningtofundamentallytransformourconceptionsofwhogetsto

dowhatupaboveourheads.

B)AsarecentreportfromtheNationalAcademyofScienceshighlights,thesesatellitesholdtremendouspotential

formakingsatellite-basedsciencemoreaccessiblethaneverbefore.However,asthecostofgettingyourown

satellite  in  orbit  drops  sharply,  the  risks  of  irresponsible  use  grow.  The  question  here  is  no  longer“Can

we?”but“Should  we?”What  are  the  potential  downsides  of  having  a  slice  of  space  densely  populated  by

equipmentbuiltbypeoplenottraditionallylabeledas“professionals”?Andwhatwouldtheresponsibleand

beneficialdevelopmentanduseofthistechnologyactuallylooklike?Someoftheanswersmaycomefroma

nonprofitorganizationthathasbeenbuildingandlaunchingamateursatellitesfornearly50years.

C)Havingyourpersonalsatellitelaunchedintoorbitmightsoundlikeanideastraightoutofsciencefiction.But

over  the  past  few  decades  a  unique  class  of  satellites  has  been  created  that  fits  the  bill:  CubeSats.

The“Cube”heresimplyreferstothesatellite'sshape.ThemostcommonCubeSatisa10cmcube,sosmallthata

singleCubeSatcouldeasilybemistakenforapaperweightonyourdesk.Thesemini-satellitescanfitina

launchvehicle'sformerly“wastedspace.”Multiplescanbedeployedincombinationformorecomplexmissions

thancouldbeachievedbyoneCubeSatalone.

D)  Within  their  compact  bodies  these  minute  satellites  are  able  to  house  sensors  and  communications

receivers/transmittersthatenableoperatorstostudyEarthfromspace,aswellasspacearoundEarth.They’re

primarilydesignedforLowEarthOrbit(LEO)—aneasilyaccessibleregionofspacefromaround200to800

milesaboveEarth,wherehuman-tendedmissionsliketheHubbleSpaceTelescopeandtheInternationalSpace

Station(ISS)hangout.Buttheycanattainmoredistantorbits;NASAplansformostofitsfutureEarth-

escapingpayloads(tothemoonandMarsespecially)tocarryCubeSats.

E)Becausethey'resosmallandlight,itcostsmuchlesstogetaCubeSatintoEarth’sorbitthanatraditional

communicationsorGPSsatellite.For instance, aresearch grouphere atArizona StateUniversity recently

claimedtheirdevelopmentalsmallCubeSatscouldcostaslittleas$3,000toputinorbit.Thisdecreaseincost

a11owsresearchers,hobbyistsandevenelementaryschoolgroupstoputsimpleinstrumentsintoLEOoreven

havingthemdeployedfromtheISS.

F)ThefirstCubeSatwascreatedintheearly2000s,asawayofenablingStanfordgraduatestudentstodesign,

build,testandoperateaspacecraftwithsimilarcapabilitiestotheUSSR’s Sputnik(前苏联的人造卫星).Since

then,NASA,theNationalReconnaissanceOfficeandevenBoeinghavealllaunchedandoperatedCubeSats.

Therearcmorethan130currentlyinoperation.TheNASAEducationalLaunchofNanoSatelliteprogram,

which  offers  free  launches  for  educational  groups  and  science  missions,  is  now  open  to  U.S.  nonprofit

corporationsaswell.Clearly,satellitesarenotjustforrocketscientistsanymore.

G)TheNationalAcademyofSciencesreportemphasizesCubeSats'importanceinscientificdiscoveryandthe

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2019年6月大学英语六级考试真题(第3套)PartIWriting(30minutes)Directions:Forthispart,youareallowed30minutestowriteanessayontheimportanceofmotivationandmethodsinlearning.Youshouldwriteatleast150wordsbutnomorethan200words._________________________________________________________________________________________________...

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