职称英语理工类A级考试真题及解析（2026年）

第第页职称英语理工类A级考试真题及解析（2026年）第一部分词汇选项（第1–15题，每题1分，共15分）下面每个句子中均有1个词或者短语划有底横线，请为每处划线部分确定1个意义最为接近的选项，每题为单选题，题干末尾设空白括号（）。1.Thenewmaterialcanresisthightemperatureabove1200degreesCelsius.（）A.avoidB.withstandC.acceptD.produce答案：B解析：resist抵抗、经受；withstand与之同义。2.Engineersneedtoanalyzeexperimentaldatarepeatedlytofinddesigndefects.（）A.examineB.storeC.copyD.delete答案：A解析：analyze分析；examine核查、分析，词义匹配。3.Thismachinecanacceleratethereactionspeedofchemicalrawmaterialsgreatly.（）A.slowdownB.speedupC.cutoffD.putoff答案：B解析：accelerate加速；speedup同义短语。4.Thefactoryhasabandonedtheoldproductionlineforenergy-savingequipment.（）A.repairedB.designedC.givenupD.tested答案：C解析：abandon放弃；giveup同义替换。5.Theresearcherfoundanabnormalfluctuationinthesensorreadingovernight.（）A.regularB.unusualC.steadyD.tiny答案：B解析：abnormal异常的；unusual不寻常的。6.Solarenergyisregardedasanadequatesubstituteforfossilfuelsinremoteareas.（）A.insufficientB.suitableC.expensiveD.rare答案：B解析：adequate合适够用的；suitable适配的。7.Scientiststrytoascertaintheexactcauseofmechanicalfailureinthelab.（）A.confirmB.guessC.ignoreD.delay答案：A解析：ascertain查明、确认；confirm同义。8.Thealloyshowsbrittlepropertiesunderextremelow-temperatureenvironment.（）A.flexibleB.fragileC.durableD.elastic答案：B解析：brittle脆的；fragile易碎的。9.Wemustcompilealltestreportsbeforetheprojectacceptancemeeting.（）A.destroyB.collectandorganizeC.printD.submitcasually答案：B解析：compile汇编整理；对应收集整理含义。10.Thecompanywillcommencethenewenergybatteryprojectnextquarter.（）A.finishB.startC.suspendD.review答案：B解析：commence启动、开始；start同义词。11.Thisspecialcoatingcancorrode-proofmetalsurfaceinhumidcoastalclimate.（）A.preventrustofB.speedupwearofC.increaseweightofD.changecolorof答案：A解析：corrode-proof防腐蚀；防止生锈匹配语义。12.Theexperimentresultisconsistentwiththeoreticalcalculationconclusion.（）A.conflictingB.matchingC.confusingD.changing答案：B解析：consistent一致的；matching相吻合。13.Techniciansneedtodetecttinycracksinsidemetalcomponentsregularly.（）A.coverB.findoutC.fillD.expand答案：B解析：detect探测发现；findout同义短语。14.Windpowergenerationcaneffectivelydiminishcarbonemissionofpowerplants.（）A.increaseB.maintainC.reduceD.balance答案：C解析：diminish减少；reduce为近义词。15.Theprototypedesignneedstobemodifiedtomeetindustrialproductionstandard.（）A.removedB.adjustedC.copiedD.preserved答案：B解析：modify修改调整；adjust词义相符。第二部分阅读判断（第16–22题，每题1分，共7分）下面的短文后列出了7个句子，请根据短文内容对每个句子做出判断；A=正确，B=错误，C=文中未提及，每题单选题，题干末尾带空白括号（）。短文原文：NewGenerationHigh-efficiencyThermoelectricMaterialsTraditionalthermoelectricmaterialscanconvertheatdifferenceintoelectricenergy,widelyusedinaerospaceequipment,industrialwasteheatrecoveryandsmallsensorpowersupplysystems.However,traditionalbismuthtelluride-basedthermoelectricmaterialshaveobviousdrawbacks:theirenergyconversionefficiencyislimitedbelow8%atmediumtemperaturerange,rawmaterialreservesarescarce,andproductionprocessingcostremainsrelativelyhigh,whichrestrictslarge-scalepopularizationandcommercialapplication.Inrecentfiveyears,researchteamsfrommultipleuniversitiesandresearchinstitutesinEurope,AsiaandNorthAmericahavefocusedondevelopingnewoxide-basedthermoelectricmaterials.Comparedwithtraditionalalloythermoelectricmaterials,oxidematerialshaveprominentadvantages:abundantmineralrawmaterials,stronghigh-temperatureoxidationresistance,stablechemicalpropertyinharshworkingenvironment,andlowoverallmanufacturingcost.Aresearchgroupfromanationalengineeringlaboratorypublishedaresearchpaperlastyear.Theyoptimizedthedopingproportionofcalciumcobaltoxidematerials,adjustedinternalgrainstructurethroughhigh-temperaturesinteringprocess,andsuccessfullyraisedthemaximumenergyconversionefficiencyofthisnewthermoelectricmaterialto11.7%within300℃–600℃temperatureinterval.Meanwhile,theteamcompleted1200-hourcontinuousstabilityagingtest,provingthatthematerialcanworkstablyforlong-termindustrialwasteheatrecoveryscenarios.Atpresent,small-scalepilotproductionlineshavebeenbuiltintwoindustrialparksineasternChina,usedfortrialproductionofthermoelectricpowergenerationmodules.Thetechnicalteamestimatesthatafter3–5yearsofiterativeoptimizationandcostreduction,thenewoxidethermoelectrictechnologyisexpectedtooccupymorethan15%marketshareinindustrialwasteheatpowergenerationfield,bringingobviousenergy-savingandemission-reductionbenefitsforsteel,chemicalandcementmanufacturingenterprises.Atthisstage,thetechnologyhasnotbeenappliedtocivilhouseholdpowersupplyproductsduetomodulevolumeandcircuitmatchingdifficulties.16.Traditionalbismuthtelluridethermoelectricmaterialshaveconversionefficiencyhigherthan10%inmediumtemperaturerange.（）A.RightB.WrongC.Notmentioned答案：B解析：原文传统材料效率低于8%，题干表述错误。17.Oxidethermoelectricmaterialshavericherrawmaterialreservesthantraditionalalloythermoelectricmaterials.（）A.RightB.WrongC.Notmentioned答案：A解析：原文明确氧化物原料储量丰富，表述正确。18.Thenewcalciumcobaltoxidematerialreaches11.7%peakconversionefficiencybetween300℃and600℃.（）A.RightB.WrongC.Notmentioned答案：A解析：论文实验数据与题干完全吻合，判断正确。19.Thenewmaterialonlypassedlessthan500hoursofcontinuousstabilitytestinlaboratory.（）A.RightB.WrongC.Notmentioned答案：B解析：实际完成1200小时老化测试，题干数据错误。20.MassproductionassemblylinesfornewthermoelectricmoduleshavebeenconstructednationwideinChina.（）A.RightB.WrongC.Notmentioned答案：B解析：仅东部两个工业园建有中试线，并非全国量产线。21.Researcherspredictthenewthermoelectrictechnologymaygainover15%marketshareinindustrialwasteheatpowergenerationinseveralyears.（）A.RightB.WrongC.Notmentioned答案：A解析：原文3-5年后预计占比超15%，表述正确。22.Thenewthermoelectricmaterialhasalreadybeenwidelyusedinhouseholdairconditionerpowersupplysystems.（）A.RightB.WrongC.Notmentioned答案：B解析：目前暂未应用于民用电品，题干错误。第三部分概括大意与完成句子（第23–30题，每题1分，共8分）本部分包含两项任务：①23–26概括段落大意，从6个备选项选最佳小标题；②27–30补全句子，匹配剩余选项；每题单选，题干末尾带空白括号（）。短文：AutonomousUnderwaterVehicle(AUV)TechnicalDevelopmentParagraph1AutonomousUnderwaterVehicle,abbreviatedasAUV,isanintelligentunderwaterrobotoperatingwithoutreal-timecableconnectionwithsurfaceships.Equippedwithindependentbatterypowersystem,navigationsensorgroup,underwateracousticcommunicationmoduleandtaskcarryingload,AUVcancompletelong-distance,deep-sea,long-durationautonomouscruising,whichiscompletelydifferentfromremotelyoperatedunderwatervehicles(ROV)relyingonumbilicalcablesforpowerandsignaltransmission.Paragraph2TheearliestprototypeofAUVappearedinthe1970s,mainlyusedforbasicoceanhydrologicaldatacollectionandshallowwaterterrainsurvey.Restrictedbybatterycapacity,sensorprecisionandunderwaterpositioningalgorithmlevel,earlyAUVshadshortendurance,smalldivingdepthandlowintelligentdecision-makingability,onlysuitableforsimpleshort-termoffshoreobservationtasks,unabletoadapttocomplexdeep-seaextremeworkingconditions.Paragraph3Since2000,advancesinlithiumbatteryenergydensity,inertialnavigationtechnologyandunderwateracousticpositioningalgorithmgreatlypromotedAUVcomprehensiveperformanceupgrade.Moderndeep-seaAUVcandivetomorethan6000metersseabed,realizeautomaticpathplanning,obstacleavoidance,multi-machinecooperativeformationoperation,andcarrymultipledetectionsensorstosimultaneouslycollecttemperature,salinity,pressureandseabedgeologicalsamplingdata.Paragraph4NowadaysAUVhasformedmatureapplicationscenariosinmultiplefields.MarinescientificresearchinstitutionsdeployAUVforglobaloceanclimatemonitoringandseabedmineralresourceexploration;offshoreengineeringenterprisesuseAUVtoinspectsubmarineoilpipelinesandsubseacablefaults;maritimemanagementdepartmentsapplyAUVforunderwaterenvironmentalpollutiontracingandillegalfishingactivitypatrolinspection.选项池（A-F）A.OriginandlimitationofearlyAUVprototypesB.DefinitionandbasicstructuralfeaturesofAUVC.WideapplicationfieldsofmodernAUVtechnologyD.TechnicalbreakthroughandperformanceimprovementofcontemporaryAUVE.DisadvantagesoftraditionalsurfacesurveyvesselsF.Futuredesignconceptofultra-deep-seaAUV任务一：概括大意（23-26题）23.Paragraph1（）答案：B解析：第一段介绍AUV定义、结构，匹配B选项。24.Paragraph2（）答案：A解析：讲述早期AUV诞生与技术短板，对应A。25.Paragraph3（）答案：D解析：2000年后技术迭代、性能全面升级，选D。26.Paragraph4（）答案：C解析：罗列AUV多行业实际应用场景，匹配C。任务二：完成句子（27-30题，复用剩余备选项E、F，题干匹配补全）27.AUVworksindependentlywithoutconnectingtosurfacevesselsvia（）答案：umbilicalcables解析：原文ROV依靠脐带缆，AUV无缆自主运行。28.TheoperationalcapabilityofearlyAUVwaslimitedmainlyby（）答案：battery,sensorandpositioningalgorithm解析：第二段明确三大技术制约因素。29.Moderndeep-seaAUViscapableofdivingtoadepthover（）答案：6000meters解析：第三段直接给出最大下潜深度参数。30.EnterprisesapplyAUVtocheckdamageconditionsof（）underseawater.答案：submarineoilpipelinesandsubseacables解析：第四段近海工程应用内容。第四部分阅读理解（第31–45题，每题3分，共45分）共3篇理工类科普短文，每篇5道单选题，每题题干末尾带空白括号（），选项分行排布，附答案与精简解析。PassageOne:IntelligentVibrationMonitoringSystemforMechanicalEquipmentUnplannedmechanicalfailureisonemajorcauseofproductionshutdownandeconomiclossinmanufacturingworkshops.Traditionalregularmanualinspectionmodehasobviousdefects:inspectionintervalisfixed,subtleearlyvibrationabnormalitycannotbecapturedtimely,manualrecordingdataexistshumanerror,anditisimpossibletorealize24-houruninterruptedreal-timemonitoringforhigh-speedrotatingequipmentsuchasbearings,gearboxesandspindleassemblies.IntelligentonlinevibrationmonitoringsystemadoptsMEMSmicro-accelerationsensorsinstalledonkeymechanicalcomponents.Thesensorscontinuouslycollectvibrationfrequency,amplitudeandphasesignaldata,transmitreal-timedatatoedgecomputingterminalthroughwiredorwirelesstransmissionmode.Thebuilt-infaultdiagnosisalgorithmcomparesreal-timevibrationparameterswithpresetnormalthresholddatabase;onceabnormalvibrationtrendexceedingsafetyrangeisdetected,thesystemwillautomaticallytriggersound-lightalarmandpushfaultwarningmessagetomobileterminalsofmaintenancetechnicians.Thesystemcanrealizewholelifecycledatastorageandtrendanalysisofequipmentvibrationcharacteristics.Throughlong-termbigdataaccumulation,theplatformcanconstructpersonalizedfaultpredictionmodelforsingledevice,realizepredictivemaintenanceinsteadofpassivebreakdownmaintenance.Statisticsfromaheavymachinerymanufacturingenterpriseshowthatafterdeployingthismonitoringsystemfor18months,unexpectedequipmentfailureratedecreasedby42.6%,annualmaintenancelaborcostreducedbynearly280,000RMB,andoverallequipmentoperationefficiencyincreasedby11.3%.Intermsoftechnicalshortcomings,thesystemissusceptibletoelectromagneticinterferenceinhigh-voltageworkshopenvironment,leadingtooccasionalsignaldistortion;meanwhile,initialpurchaseanddeploymentinvestmentofmulti-sensornetworkingschemeisrelativelyhigh,restrictingrapidpopularizationinsmallandmedium-sizedprocessingfactories.RelevantR&Dteamisoptimizinganti-interferencecircuitdesignanddevelopinglow-costintegratedsensormodulestolowerapplicationthresholdforsmallenterprises.31.Whatisthemaindisadvantageoftraditionalmanualequipmentinspection?（）A.Itcoststoomuchmaterialreplacementfee.B.Itfailstofindtinyearlyvibrationanomaliespromptly.C.Itcanautomaticallygeneratefaultanalysisreports.D.Itadaptswellto24-hourcontinuousequipmentmonitoring.答案：B解析：原文点明人工巡检无法及时捕捉早期细微振动异常。32.WhatphysicalquantitydatadoMEMSsensorscollectcontinuously?（）A.Temperature,humidityandairpressureB.Vibrationfrequency,amplitudeandphasesignalC.Current,voltageandpowerconsumptionvalueD.Noisedecibelandenvironmentaldustconcentration答案：B解析：第二段明确传感器采集三类振动特征参数。33.Howdoesthesysteminformmaintenancestaffofabnormalequipmentstate?（）A.ShutdownthewholeproductionlineforciblyB.Sendwarningmessagetotechnicians’mobilephoneswithalarmreminderC.AutomaticallyreplacedamagedsparepartsonlineD.Uploadfaultdatatopublicsocialnetworkplatform答案：B解析：超标后声光报警+移动端推送预警信息。34.Whateconomicbenefitdidthemachineryenterprisegainafterusingthesystem?（）A.Equipmentfailureratedroppedby42.6%B.RawmaterialpurchasecostincreasedgreatlyC.Workshopareaexpandedbymorethan40%D.Productsalesvolumedecreasedsignificantly答案：A解析：原文故障发生率下降42.6%为核心效益。35.Whichfactorlimitswideapplicationofthismonitoringsysteminsmallfactories?（）A.ToosimpleoperationstepsforworkersB.LowinitialconstructioncostofsensorsC.ElectromagneticinterferenceproblemandhighupfrontinvestmentD.Excessivedatastoragespaceoccupation答案：C解析：电磁干扰+初期组网投入偏高制约中小企业推广。PassageTwo:Low-carbonAluminumSmeltingTechnologyInnovationAluminumelectrolysisindustrybelongstohighenergyconsumptionandhighcarbonemissionmanufacturingsector.Traditionalcryolite-basedaluminumelectrolysiscellneedstomaintainoperatingtemperatureabove950℃,consumingmassivealternatingcurrentpower;thermalenergylossthroughcellshellradiation,fluegasemissionandelectrolyteheatdissipationaccountsforover45%oftotalenergyinput,resultinginhighpowerconsumptionpertonofprimaryaluminumproductandheavycarbonfootprint.Globalaluminumindustryresearchinstitutionshavespentmorethantenyearsresearchinglow-temperaturealuminumelectrolysistechnology,usingmodifiedfluoridecompositeelectrolytetoreducemoltensaltmeltingpoint,soastorealizestableelectrolyticproductionunder750℃–820℃workingtemperature.Low-temperatureelectrolysismodecancutcomprehensiveheatlossobviously,andtheoreticalpowerconsumptionpertonaluminumcanbereducedby1200–1600kWhcomparedwithconventionalhigh-temperatureelectrolysisprocess.Adomesticnon-ferrousmetalresearchinstitutecompletedindustrialpilottestoflow-carbonaluminumsmeltingtechnologylastyear.Theyoptimizedelectrolytecomponentratio,adoptednewthermalinsulationliningmaterialforelectrolyticcell,andmatchedvariable-frequencypowersupplyregulationsystem.Pilotoperationdatashowedthatactualpowerconsumptionpertonaluminumdecreasedby1340kWh,carbondioxideemissionperunitproductdroppedby14.8%,andtheservicelifeofelectrolyticcellliningwasprolongedbynearly20%duetoloweroperatingtemperature.Nevertheless,large-scaleindustrialpopularizationstillfacestwocorebottlenecks:first,thenewcompositeelectrolytehasstrongcorrosiveness,puttingforwardhigherrequirementoncelllininganti-corrosionmaterialperformance;second,therawmaterialpreparationcostofcustomizedlow-temperatureelectrolyteishigherthantraditionalcryoliterawmaterial.Atpresent,researchteamsaredevelopinglow-costanti-corrosionrefractoryliningandrecycledelectrolyteregenerationprocesstosolveabovetworestrictiveproblems,strivingtorealizelarge-scaleindustrialapplicationwithinsixyears.36.Whyistraditionalaluminumelectrolysisindustryhigh-carbon?（）A.Itneedsextremelylowworkingtemperaturebelow500℃B.SevereheatenergywasteleadstohugepowerconsumptionandcarbonemissionC.ItuseszerofossilenergyinwholeproductionprocedureD.Itsproducthasnomarketdemandinnewenergyindustry答案：B解析：散热损耗大、耗电量高，碳排放偏高。37.Whatisthetemperaturerangeofnewlow-temperaturealuminumelectrolysistechnology?（）A.Below500℃B.750℃–820℃C.900℃–950℃D.Over1000℃答案：B解析：原文低温电解区间明确为750至820摄氏度。38.Whatisthetheoreticalpower-savingrangeoflow-temperatureelectrolysispertonaluminum?（）A.1200–1600kWhB.Lessthan500kWhC.Exceed2000kWhD.Noobviouspower-savingeffect答案：A解析：每吨理论节电1200-1600千瓦时。39.Whichpositivechangeappearedintheindustrialpilottestproject?（）A.CarbonemissionpertonaluminumrosesharplyB.ElectrolyticcellliningservicelifewasextendedC.OverallpowerconsumptionofunitproductincreasedD.Productionstabilityofelectrolyticcelldecreasedcontinuously答案：B解析：低温环境延长内衬使用寿命约20%。40.Onebottleneckrestrictinglarge-scalepromotionoflow-carbonaluminumsmeltingisthat（）A.ThenewelectrolytehasstrongcorrosivepropertyB.ProductionoperationstepsbecomemuchsimplerC.MarketpriceoffinishedaluminumproductskeepsrisingD.Workshopsitelayoutneedsnoadjustmentatall答案：A解析：复合电解质腐蚀性强是推广难点之一。PassageThree:Solid-stateBatteryTechnicalProspectforElectricVehiclesLithium-ionliquidelectrolytebatteriesdominatepowerbatterymarketofnewenergyvehiclescurrently.However,liquidlithiumbatteryhasinherentsafetyhiddendanger:organicelectrolyteisflammableandexplosive;underextremecollision,extrusionoroverheatingcondition,internalshortcircuitmaytriggerthermalrunaway,fireorevenexplosionaccident.Besides,traditionalliquidbatteryhaslimitedenergydensity,restrictingdrivingrangepromotionofelectricvehicles,andcycledecayspeedrestrictslong-termservicelifeofpowerbatterypack.Solid-statebatterycompletelyreplacesflammableliquidelectrolytewithsolidionicconductormaterial(ceramic,polymerorcompositesolidelectrolyte).Thisstructuralreformfundamentallyeliminatesthermalrunawayriskcausedbyliquidelectrolytecombustion,greatlyimprovingintrinsicsafetyofpowerbatterysystem.Meanwhile,solid-statestructurematcheshigh-capacitypositive/negativeelectrodematerialsystem,liftingbatteryenergydensitysignificantly,whichcaneffectivelyincreasesingle-chargecruisingmileageofelectricpassengervehicles.Twotechnicalroutesaredevelopingsimultaneouslyglobally:all-solid-statebatteryandsemi-solid-statebattery.Semi-solid-statebatteryretainssmallamountofliquidelectrolyte,withrelativelylowpreparationdifficulty,easyindustrialtransformationonexistingbatteryproductionline,manybatteryenterprisesplanmassproductionlayoutbefore2028;all-solid-statebatteryhashighersafetyupperlimitandenergydensityceiling,butfaceshugechallengesinsolid-solidinterfacecontactimpedance,massproductionformingprocessandlarge-scalerawmaterialcostcontrol,estimatedtorealizecommercialvehicleloadingafter2032.Industryanalysisreportpredictsthatsolid-statebatterywillgraduallyreplacetraditionalliquidlithiumbatteryinpassengercarpowerfieldinnext10–15years.Inshortterm,semi-solidproductwilloccupymainstreamtransitionalmarketshare;longterm,matureall-solid-statetechnologywillbecomecorepowersolutionfornewenergyvehicles,alsosupportingapplicationinaerospace,largeenergystoragepowerstationandportableintelligentelectronicequipment.41.Whatistheprominentsafetyriskoftraditionalliquidlithiumbatteries?（）A.ToolowchargingspeedundernormaltemperatureB.FlammableliquidelectrolytemaycausethermalrunawayandfireC.ExcessivelysmalloverallbatteryvolumeD.Toosimpleinternalstructuralcomposition答案：B解析：液态电解液易燃易爆，易引发热失控起火。42.Whatmaterialreplacesliquidelectrolyteinsidesolid-statebattery?（）A.SolidionicconductormaterialB.OrdinarypurewatersolventC.ConcentratedsulfuricacidsolutionD.Alcoholorganicsolvent答案：A解析：固态离子导体替代液态电解液。43.Whatadvantagedoessolid-statebatterybringtoelectricvehicles?（）A.ReducevehiclebodyweightcompletelyB.ImprovebatterysafetyandenhanceenergydensityC.CutchargingrequirementtozeroD.Removebatterymanagementsystemrequirement答案：B解析：安全性提升、能量密度更高、续航更长。44.Whycansemi-solid-statebatteryrealizemassproductionearlier?（）A.NorawmaterialcostinputinproductionB.CompatiblewithexistingproductionlinewithlowtransformationdifficultyC.Itstechnicalindicatorsarefullyidenticaltoall-solid-statebatteryD.Itcontainsnoliquidsubstanceinsidethecell答案：B解析：改造成本低、产线适配性强，量产门槛更低。45.Whichstatementmatchesindustrylong-termpredictionaboutsolid-statebattery?（）A.Solid-statebatterywillneverreplaceliquidlithiumbatteryB.All-solid-statebatterywillrealizevehicleloadingearlierthansemi-solidtypeC.Semi-solidproductservesastransitionproductinshort-termmarketD.Solid-statetechnologycanonlybeusedinautomobileindustry答案：C解析：短期半固态作为过渡方案，长期全固态主导市场。第五部分补全短文（第46–50题，每题2分，共10分）短文设置5处空白，从A-F六个选项选出最合适句子填入，一个多余选项，每题单选，题干末尾带空白括号（）。短文：SpaceDebrisRemovalTechnologyResearchSincehumanenteredspaceage,thousandsofsatellites,rocketupperstagesandfragmentedcollisionresidueshaveformedmassivespacedebrisinnear-earthorbit.46.（）Thesewastefragmentswithdifferentsizescontinuouslyorbitaroundtheearth,posingseverecollisionthreattoworkingsatellites,spacestationandmannedspacecraft.Evenmillimeter-leveltinydebriscanproducedestructiveimpactdamageunderultra-highorbitalrelativespeed.Traditionalpassivepreventionmethodmainlyreliesonorbitmaneuveradjustmentforactiveevasionwhenearlywarningsystempredictscollisionrisk.47.（）Frequentorbitadjustmentconsumeslargeamountofsatellitefuel,shorteningoverallservicelifeofon-orbitspacecraft,andcannotfundamentallyreducetotalamountofaccumulatedspacegarbageinorbitenvironment.Multipletargetedactivespacedebrisremovaltechnologieshavebeenproposedandverifiedinrecentyears.Onetypicalschemeisnetcapturetechnology:deployflexiblefoldingcapturenetviasmalldeorbitsatellite,wraptargetdebriscompletely,thendragthecombinedsystemintoatmosphericreentryburningorbit.48.（）Anothermaturetechnicalrouteisroboticarmgrabbingmode,suitableforcapturinglargeintactrocketresidualstages,clampingstabletargetthroughmechanicalgripperandimplementingdeorbitcontrol.Electrodynamictetherdeorbittechnologybelongstonon-contactdisposalsolution.49.（）Theconductivetethergeneratesinducedcurrentcuttinggeomagneticfield,producingreverseresistancetorquetosloworbitalvelocityofdebris,makingitnaturallyfallintoatmosphereforcombustionwithoutchemicalpropellantconsumption.50.（）Internationalaerospaceinstitutionshavereachedconsensusonspacedebrisgovernance,jointlycarryingouttechnicalverificationmissionsandformulatingorbitallaunchaccessrestrictions,toprotectsustainableutilizationofnear-earthspaceenvironmentforlong-termspaceexplorationactivities.备选句子A.Thispassiveevasionmeasurehasobviousinherentdrawbacks.B.Alargequantityoforbitalwastehasbeenaccumulatingfordecades.C.Capturenettechnologyadaptstoirregularlyshapedfragmenteddebristargets.D.Ituseslongconductiveropeconnectedbetweendeorbitsatelliteandspacedebris.E.Spacedebrisproblemneedsglobaljointgovernanceandtechnicalcooperation.F.Humanspacelaunchactivitieswillstopcompletelyinthenextthirtyyears.46.（）答案：B解析：承接前文太空垃圾形成，说明数十年持续堆积现状。47.（）答案：A解析：转折引出被动规避方式存在明显缺陷。48.（）答案：C解析：补充网捕技术适配不规则碎片垃圾的优势。49.（）答案：D解析：解释电动缆绳除垃圾技术的结构原理。50.（）答案：E解析：总结太空垃圾治理需要全球协同合作。第六部分完形填空（第51–65题，每题1分，共15分）短文共15处空白，每空4个单选选项，题干末尾带空白括号（），选项分行排布。短文：SmartConcretewithSelf-repairFunctionOrdinaryconcreteiswidelyusedininfrastructureconstructionsuchasbridges,tunnelsandhigh-risebuildings.Underlong-termload,temperaturevariationandenvironmentalerosioneffect,tinyinternalcrackswill51.（）graduallyinsideconcretestructure.Ifcracksexpandcontinuously,structuralsafetywillbeseriouslythreatened,andmanualmaintenanceandrepaircostremainshighinlateroperationperiod.Scientistshavedevelopedself-repairsmartconcret