大学英语六级考试2019年6月第3卷真题及答案

PartIWriting(30minutes)Directions:Forthispart,youareallowed30minutestowriteanessayontheimportanceofmotivationandmethodsinlearning.Youshouldwriteatleast150wordsbutnomorethan200words.________________________________________________________________________________________________________________________________________________________________________________________________________________________PartⅠWritingTheImportanceofMotivationandMethodsinLearningWhenitcomestolearning,thereisafamousChinesesayingwhichgoesLearningwithoutthinkingleadstoconfusion;thinkingwithoutlearningendsindanger.Evidently,itismeanttotellusthatlearningmethodsareasimportantashardwork.Itotallyagreewithit.Besides,Iinsistthatinadditiontodiligenceandmethods,motivationinlearningshouldalsobepaidattentionto.Asforme,motivationisanindispensablepartoflearning,becausewithoutmotivation,youwon'tstarttolearnatall.Evenifyouhavestartedstudying,withoutmotivationthatdrivesyoutokeepgoing,youmayeasilygiveupwhenfacedwithdifficulties.Withmotivation,wealsoneedtherightwaytolearn.Inthelearningprocess,hardworkisnotenough.Ifwedon'tattachimportancetolearningmethods,wemayfallintothedilemmaofstudyingmechanically.Instead,witheffectivelearningmethods,therewillbetwicetheresultwithhalftheeffort.Inbrief,motivationandmethodsarecriticaltosuccessfullearning.Therefore,onlywhenweareclearlyawareofthis,canweachievegoodlearningresultsbymakingefforts.PartIIListeningComprehension(30minutes)说明：由于2019年6月六级考试全国共考了两套听力，本套真题听力与前2套内容相同，只是选项顺序不同，因此在本套真题中不再重复出现。PartIIIReadingComprehension(40minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.Steel（钢铁）isvaluedforitsreliability可靠性,butnotwhenitgetscold.Mostformsofsteel_A_26_abruptly突然地、硬生生的_becomebrittle（脆的）attemperaturesbelowabout-25℃unlesstheyaremixedwithothermetals.Now,though,anoveltypeofsteelhasbeendevelopedthatresists对抗、抵抗_J_27_fractures破碎、碎裂_atmuchlowertemperatures,whileretaining保留、留住itsstrengthandtoughness韧性、韧度—withouttheneedforexpensive_B_28_additives(添加剂）_.Steel'sfragilityatlowtemperaturesfirstbecameamajorconcernduringtheSecondWorldWar.AfterGermanU-boatstorpedoed（用鱼雷攻击）numerousBritishships,a2,700-strongfleetofcheap-and-cheerfulLibertyshipswasintroducedtoreplacethelostvessels,providingalifelineforthe_E_29_besieged（被包围）_British.Butthesteelshellsofhundredsoftheships_I_30_cracked（破裂）_intheicynorthAtlantic,and12brokeinhalfandsank.Brittleness（脆弱、脆性）remainsaproblemwhenbuildingsteelstructuresincoldconditions,suchasoilrigsintheArctic.Soscientistshave_N_31_strived（努力、奋斗）_tofindasolutionbymixingitwithexpensivemetals（金属、五金）suchasnickel（镍）.YuujiKimuraandcolleaguesinJapantriedamorephysical（物理的、物质的、符合自然法则的）_C_32_approach（方法）_.Ratherthanaddingothermetals,theydevelopedacomplexmechanical（机械、力学）processinvolvingrepeatedheating（加热、采暖）andverysevere（严重、严厉、严格）mechanicaldeformation（变形）,knownastempforming.Theresultingsteelappearstoachieveacombinationofstrength（强度）andtoughness（韧性）thatis_G_33_comparable（想当、可比）_tothatofmodemsteelsthatareveryrichinalloy（合金）content（内容、含量、目录）and,therefore,veryexpensive.Kimura'steamintends（打算）touseitstempformedsteeltomakeultra-high（超高）strengthparts,suchasbolts（螺栓、铆钉）.Theyhopetoreduceboththenumberof_H_34_components（组建、部件）_neededinaconstructionjobandtheirweight—by（按……计算）replacingsolid（实心的、实体的）supportswith_K_35_hollow（空心的）_tubes（管）,forexample.Thiscouldreducetheamountofsteelneededtomakeeverythingfromautomobiles（发动机）tobuildingsandbridges（桥梁）.A）abruptlyB）additivesC）approachD）ardentlyE）besiegedF）channelG）comparableH）componentsI）crackedJ）fracturesK）hollowL）relevantM）reshuffledN）strivedO）violentSectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.Thefutureofpersonalsatellite（卫星）technologyishere—arewereadyforit?A）Satellitesusedtobetheexclusiveplaythingsofrichgovernmentsandwealthycorporations.Butincreasingly,asspacebecomesmoredemocratized,theyarecomingwithinreachofordinarypeople.Justlikedrones（无人机）beforethem,miniaturesatellitesarebeginningtofundamentallytransformourconceptionsofwhogetstodowhatupaboveourheads.B）AsarecentreportfromtheNationalAcademyofScienceshighlights,thesesatellitesholdtremendouspotentialformakingsatellite-basedsciencemoreaccessiblethaneverbefore.However,asthecostofgettingyourownsatelliteinorbitdropssharply,therisksofirresponsibleusegrow.ThequestionhereisnolongerCanwe?butShouldwe?Whatarethepotentialdownsidesofhavingasliceofspacedenselypopulatedbyequipmentbuiltbypeoplenottraditionallylabeledasprofessionals?Andwhatwouldth