2026年英语六级阅读真题模拟真题模拟真题易错题库含解析

2026年英语六级阅读真题模拟真题模拟真题易错题库含解析考试时间：______分钟总分：______分姓名：______第一部分长篇阅读阅读下面的文章，掌握其大意，然后根据文章内容，从每题所给的四个选项（A、B、C、D）中选出最佳选项。Theriseofthe"gigeconomy"hasbeenoneofthemostsignificanttransformationsinthelabormarketoverthepastdecade.Fueledbydigitalplatformsthatconnectserviceproviderswithconsumersdirectly,industriesrangingfromtransportationandfooddeliverytofreelancewritingandgraphicdesignhaveseenasurgeinshort-term,project-basedwork.Whileproponentshighlighttheflexibilityandautonomyitoffers,criticsraiseconcernsaboutjobsecurity,benefits,andthepotentialforexploitation.Formanyindividuals,gigworkprovidesanattractivealternativetotraditionalemployment.Itallowspeopletosettheirownschedules,chooseprojectsthatalignwiththeirinterests,andworkwithglobalclients.Thisflexibilityisparticularlyappealingtostudents,parents,retirees,andthoseseekingsupplementaryincome.Thelowerbarrierstoentryalsomeanthatindividualscanquicklytestthemarketwithminimalupfrontinvestment.Forexample,agraphicdesignercanstartofferingservicesonplatformslikeUpworkwithoutneedingtoinvestinaphysicalstudio.However,thelackoftraditionaljobsecurityisamajordrawback.Gigworkerstypicallydonotreceivebenefitssuchashealthinsurance,paidleave,orretirementplans,whichareoftenprovidedbyconventionalemployers.Thisprecariousnesscanleadtofinancialinstability,especiallyduringeconomicdownturnswhengigdemandmayplummet.Moreover,theabsenceofaclearcareerprogressionpathcanbedemotivatingforthoseseekinglong-termprofessionaldevelopment.Anothersignificantconcernistheissueofworkerclassification.Companiesoftenclassifygigworkersasindependentcontractorsratherthanemployees,therebyavoidinglegalobligationssuchasminimumwagepaymentsandovertimeregulations.Thispracticehassparkednumerouslegalbattlesandregulatoryreformsworldwide.Forinstance,inCalifornia,theAB5lawattemptedtoreclassifymanygigworkersasemployees,leadingtosubstantialchangesinhowcompaniesoperateinthestate.Therelationshipbetweengigworkersandplatformsisalsofraughtwithtension.Platformsoftenexerciseconsiderablecontroloverworkersthroughalgorithmsthatdeterminetaskassignments,pricing,andevenworkinghours.Workershavelimitedrecourseiftheybelievetheplatformisunfairoriftheyarepenalizedwithoutclearjustification.Additionally,theglobalnatureofmanyplatformsmeansthatworkersmayfacecompetitionfromindividualsinothercountrieswillingtoworkforlowerrates,potentiallysuppressingwages.Despitethesechallenges,thegigeconomyshowsnosignsofslowingdown.InnovationssuchasAI-driventaskmatchingandblockchain-basedpaymentsystemsaimtoaddresssomeoftheexistingissues.Furthermore,theconceptof"gigbundles"—whereworkerscollaborateonlargerprojects—providesopportunitiesforskilldevelopmentandincomestability.Asthelabormarketcontinuestoevolve,findingabalancebetweentheflexibilityofgigworkandtheprotectionsoftraditionalemploymentwillbecrucial.1.Whatistheprimarycharacteristicofthegigeconomymentionedinthepassage?A.Theemphasisonlong-term,full-timecontracts.B.Theuseofdigitalplatformstoconnectserviceprovidersandconsumers.C.Therequirementofsignificantupfrontinvestmentbyworkers.D.Theprovisionofextensivebenefitsandjobsecuritybycompanies.2.Accordingtothepassage,whichgroupofpeopleismostlikelytobeattractedtogigwork?A.Individualsseekinghigh-risk,high-rewardinvestments.B.Employeeslookingforfull-timepositionswithbenefits.C.Students,parents,andretireesseekingflexibility.D.Experiencedprofessionalsseekingtoestablishtheirownbusinesses.3.Whatisamajorconcernregardingthelackoftraditionaljobsecurityforgigworkers?A.Theinabilitytoworkfromhome.B.Thepotentialforfinancialinstabilityandlackofbenefits.C.Thedifficultyinfindingglobalclients.D.Thelimitedopportunitiesforcareeradvancement.4.Howhavecompaniesrespondedtotheclassificationofgigworkersasindependentcontractors?A.Theyhaveincreasedinvestmentintrainingprograms.B.Theyhaveexpandedbenefitspackagestoincludegigworkers.C.Theyhaveavoidedlegalobligationsandregulations.D.Theyhaveestablishedclearercareerpathsforgigworkers.5.Whatissuearisesfromtheuseofalgorithmsbygigplatforms?A.Theyreducethenumberofavailableprojects.B.Theylimitworkers'controlovertheirworkschedulesandconditions.C.Theyincreasecompetitionamongworkersfromdifferentcountries.D.Theyoftenresultinunfairpricingforconsumers.6.Whatpotentialsolutionsarementionedtoaddresschallengesinthegigeconomy?A.Implementingstricterregulationsonplatformalgorithms.B.Encouragingworkerstoformunionsforbetterbargainingpower.C.DevelopingnewtechnologieslikeAIandblockchain.D.Reducingthenumberofgigplatformstoincreasedemand.7.Whatwillbecrucialasthelabormarketcontinuestoevolve?A.Encouragingmorepeopletoleavetraditionalemploymentforgigwork.B.Findingabalancebetweentheflexibilityofgigworkandtraditionalemploymentprotections.C.Increasingtheminimumwageforgigworkerstomatchtraditionalemployees.D.Promotingthegrowthofdigitalplatformstocreatemoregigopportunities.第二部分仔细阅读阅读下面的文章，回答问题。Theconceptof"well-being"hasgainedconsiderableattentioninrecentyears,movingbeyondtraditionalnotionsofhappinessasmerepleasureorcontentment.Instead,itencompassesabroaderrangeoffactors,includingmentalhealth,physicalhealth,socialconnections,andasenseofpurpose.Thisholisticapproachrecognizesthattruewell-beingisnotjustaboutavoidingnegativeexperiencesbutactivelycultivatingafulfillinglife.Oneofthekeycomponentsofwell-beingismentalhealth.Inaworldfilledwithstressors,anxietyanddepressionhavebecomeincreasinglyprevalent.Practicessuchasmindfulnessmeditation,cognitive-behavioraltherapy,andregularphysicalactivityhavebeenshowntosignificantlyimprovementalwell-being.Forinstance,mindfulnessmeditationhelpsindividualsstaypresentandreducesrumination,whilephysicalactivityreleasesendorphins,whichactasnaturalmoodlifters.Accesstomentalhealthresources,suchascounselingservicesandsupportgroups,isalsocrucialinpromotingmentalwell-being.Physicalhealthisanothercornerstoneofwell-being.Abalanceddiet,regularexercise,andadequatesleeparefundamentalpracticesthatcontributetobothphysicalandmentalhealth.Nutritiousfoodsprovidetheenergyandnutrientsneededforoptimalfunctioning,whileexercisestrengthensthebodyandimprovescardiovascularhealth.Sleep,oftenunderestimated,isessentialforcognitiveprocesses,memoryconsolidation,andemotionalregulation.Disruptionsinsleeppatternshavebeenlinkedtovarioushealthissues,includingobesity,diabetes,andcardiovasculardiseases.Socialconnectionsplayavitalroleinwell-being.Humansareinherentlysocialbeings,andstrongrelationshipswithfamily,friends,andcommunityprovideemotionalsupport,reducestress,andenhancelifesatisfaction.Researchhasconsistentlyshownthatindividualswithrobustsocialnetworkstendtolivelongerandhealthierlives.Conversely,socialisolationhasbeenassociatedwithincreasedriskofmentalhealthproblemsandmortality.Engaginginsocialactivities,maintainingcommunication,andshowingempathytowardsotherscanstrengthentheseconnectionsandcontributetooverallwell-being.Asenseofpurposeormeaninginlifeisalsoacriticalelementofwell-being.Peoplewhofeelthattheirliveshavesignificancearemoreresilientinthefaceofchallengesandexperiencegreatersatisfaction.Findingpurposecancomefromvarioussources,suchascareerachievements,volunteerwork,creativepursuits,orraisingafamily.Settinggoals,engaginginmeaningfulactivities,andreflectingonone'svaluescanhelpindividualscultivateasenseofpurpose.Thissenseofdirectionprovidesmotivationandaframeworkfornavigatinglife'supsanddowns.Itisimportanttonotethatwell-beingisnotastaticstatebutadynamicprocess.Itrequiresongoingeffortandattention.Whileexternalfactorssuchassocioeconomicstatusandenvironmentalconditionscaninfluencewell-being,individualsalsohaveagencyinshapingtheirownlives.Byadoptinghealthyhabits,nurturingrelationships,findingpurpose,andseekingsupportwhenneeded,peoplecanactivelypromotetheirwell-being.8.Whatisthemainideaofthepassage?A.Traditionalnotionsofhappinessaresufficientforwell-being.B.Well-beingisaholisticconceptthatincludesmentalhealth,physicalhealth,socialconnections,andpurpose.C.Physicalactivityisthemostimportantfactorinachievingwell-being.D.Mentalhealthissueshavebecometheprimaryfocusofwell-beingresearch.9.Accordingtothepassage,whichpracticehasbeenshowntoimprovementalwell-being?A.Engaginginregularsocialisolation.B.Consumingadiethighinprocessedfoods.C.Practicingmindfulnessmeditationandregularphysicalactivity.D.Avoidingallformsofexercisetoconserveenergy.10.Whatroledosocialconnectionsplayinwell-being,asmentionedinthepassage?A.Theyprovidefinancialsupporttoindividuals.B.Theyareasecondaryconcernafterphysicalhealth.C.Theyofferemotionalsupportandreducestress.D.Theylimitanindividual'ssenseofpurpose.11.Howcanindividualscultivateasenseofpurposeintheirlives,accordingtothepassage?A.Byfocusingsolelyoncareerachievementswithoutanyotherpursuits.B.Byavoidingactivitiesthatmightleadtochallengesanddifficulties.C.Bysettinggoals,engaginginmeaningfulactivities,andreflectingonvalues.D.Byrelyingonexternalvalidationfromothers.12.Whatisthepassageprimarilyconcernedwith?A.Theeconomicimpactofwell-beingonsociety.B.Thescientificresearchbehindtheconceptofwell-being.C.Theimportanceofwell-beinganditscomponents.D.Thedifferenttypesoftherapyusedtotreatmentalhealthissues.13.Whatmessagedoesthepassageconveyaboutwell-being?A.Itisafixedstatethatcannotbechangedbyindividualactions.B.Itisprimarilyinfluencedbyexternalfactorsbeyondindividualcontrol.C.Itrequiresongoingeffortandattentionfromindividuals.D.Itisonlyachievableforaselectfewwhoarenaturallyhappy.第三部分选词填空阅读下面的文章，根据文章内容填入每个空白处最恰当的词语。选项中有两个多余词语。Therapidadvancementofartificialintelligence(AI)hassparkedbothexcitementandapprehensionacrossvarioussectors.ProponentsarguethatAIcanrevolutionizeindustriesbyautomatingrepetitivetasks,enhancingdecision-makingprocesses,andenablingthecreationofinnovativesolutions.Forexample,inhealthcare,AIalgorithmscananalyzemedicalimageswithunprecedentedaccuracy,assistingdoctorsindiagnosingdiseasesmoreefficiently.Similarly,intransportation,self-drivingcarspromisetoreduceaccidentscausedbyhumanerror.However,thepotentialrisksassociatedwithAIcannotbeoverlooked.Onemajorconcernisthedisplacementofjobs.AsAIsystemsbecomemoresophisticated,theymayperformtaskstraditionallydonebyhumans,leadingtounemploymentincertainsectors.WhilenewjobsmayemergeasaresultofAIintegration,thetransitioncouldbechallengingformanyworkers.Additionally,thereareethicalconsiderationsregardingdataprivacyandsecurity.AIsystemsoftenrelyonvastamountsofdata,raisingquestionsabouthowthisinformationiscollected,stored,andused.Withoutpropersafeguards,thereisariskofmisuseandexploitationofpersonaldata.AnothersignificantchallengeisthepotentialforAItoperpetuatebiases.AIalgorithmsaretrainedondata,andifthisdatareflectsexistingsocietalbiases,theAIsystemmayinheritandevenamplifythem.Forinstance,ifanAIhiringtoolistrainedonbiasedhiringdata,itmayinadvertentlydiscriminateagainstcertaindemographicgroups.Thiscanleadtounfairoutcomesandexacerbatesocialinequalities.AddressingthesebiasesrequirescarefuldesignandongoingmonitoringofAIsystems.Despitethesechallenges,theintegrationofAIintosocietyappearsinevitable.Tomitigatetherisks,itiscrucialtodevelopandimplementethicalguidelinesandregulations.Governments,businesses,andresearchersmustcollaboratetoestablishstandardsthatensureAIisdevelopedandusedresponsibly.Educationandreskillingprogramscanalsoplayavitalroleinhelpingworkersadapttothechangingjobmarket.BypreparingindividualsfortheopportunitiesandchallengesposedbyAI,societycannavigatethistechnologicaltransformationmoreeffectively.Ultimately,thefutureofAIdependsonhowwellwemanageitspotential.Byfosteringinnovationwhileprioritizingethicalconsiderationsandsocietalwell-being,wecanharnessthebenefitsofAIwithoutcompromisingourvalues.ThegoalshouldbetocreateabalancedapproachwhereAIenhanceshumancapabilitiesratherthanreplacingthementirely.OnlythroughsuchaframeworkcanweensurethatAIservesasapositiveforceinshapingourcollectivefuture.14.15.16.17.18.19.20.选项：A.potentialB.impactC.efficientlyD.challengesE.concernsF.aspectsG.integrationH.capabilities第四部分多项选择题阅读下面的文章，根据文章内容回答问题，每个问题都有多个正确答案。请将所选选项字母填写在题号后的括号内。Theglobalclimatecrisishaspromptednationstoreevaluatetheirenergypoliciesandexploresustainablealternativestofossilfuels.Renewableenergysourcessuchassolar,wind,andhydroelectricpowerhavegainedsignificanttractioninrecentyears.Solarenergy,harnessingthesun'sradiation,hasbecomeincreasinglycost-effective,particularlywithadvancementsinphotovoltaictechnology.Windenergy,generatedbyconvertingwindcurrentsintoelectricity,hasalsoexpandedrapidly,withoffshorewindfarmsbecomingparticularlypopularduetotheirhigherenergyyields.Despitethegrowthofrenewableenergy,thetransitionawayfromfossilfuelsisnotwithoutobstacles.Onemajorchallengeistheissueofenergystorage.Solarandwindenergyareintermittent,meaningtheyareonlygeneratedwhenthesunisshiningorthewindisblowing.Thisvariabilityposesachallengeformaintainingastableandreliablepowergrid.Innovationsinbatterystoragetechnology,suchaslithium-ionandflowbatteries,arebeingdevelopedtoaddressthisissue,butthesetechnologiesarestillevolvingandoftenexpensive.Anotherchallengeistheinfrastructurerequiredtosupportrenewableenergy.Existingpowergridswerelargelydesignedforcentralizedfossilfuelpowerplantsandmayneedsignificantupgradestoaccommodatedecentralizedrenewablesources.Economicfactorsalsoplayacrucialroleintheenergytransition.Thefossilfuelindustryhasastrongfootholdglobally,withsubstantialinvestmentsininfrastructureandpoliticalinfluence.Transitioningtocleanerenergysourcesrequiressignificantupfrontcostsfornewtechnologiesandinfrastructure.Governmentsoftenfacepressuretosupporttheseindustriesandprotectjobs,makingthetransitionpoliticallychallenging.However,thelong-termeconomicbenefitsofrenewableenergy,suchasreducedhealthcarecostsduetocleanerairandincreasedenergyindependence,canoutweightheseinitialinvestments.Publicperceptionandpolicyarealsocriticalfactors.Thesuccessoftheenergytransitiondependsonpublicsupport,whichcanbeinfluencedbyawarenesscampaigns,education,andengagement.Governmentsplayapivotalroleinshapingthetransitionthroughpoliciessuchascarbonpricing,subsidiesforrenewableenergy,andregulationsonfossilfuelemissions.Internationalcooperationisalsoessential,asclimatechangeisaglobalissuethatrequirescoordinatedefforts.AgreementsliketheParisClimateAccorddemonstratetheimportanceofcollaborationbetweennationstoachievecommonclimategoals.Thetransitiontorenewableenergyisnotjustanenvironmentalimperativebutalsoaneconomicandsocialopportunity.Renewableenergytechnologiescreatenewjobsinmanufacturing,installation,andmaintenance.Thesejobsareoftenlocallybasedandcanprovidestableemploymentincommunitiesthatwerepreviouslyreliantonfossilfuelindustries.Furthermore,renewableenergycanimproveenergysecuritybyreducingdependenceonimportedfossilfuels.Astheworldmovestowardsamoresustainableenergyfuture,thebenefitsofthistransitionwillextendbeyondenvironmentalprotectiontoencompasseconomicgrowthandsocialequity.21.Whatarethemainadvantagesofrenewableenergysourcesmentionedinthepassage?A.Theyareintermittentandrequiresignificantenergystoragesolutions.B.Theyoffercost-effectiveandsustainablealternativestofossilfuels.C.Theyrelyoncentralizedinfrastructureandareeasilyscalable.D.Theyhaveminimalenvironmentalimpactandareenvironmentallyfriendly.22.Whatarethemainchallengesassociatedwiththetransitiontorenewableenergy?A.Theneedforsignificantupfrontcostsandinfrastructureupgrades.B.Thestrongpoliticalinfluenceandlobbyingpowerofthefossilfuelindustry.C.Publicresistancetochangesinenergypoliciesandtechnologies.D.Theintermittentnatureofsolarandwindenergyandtheneedforenergystorage.23.Whatroledoeconomicfactorsplayintheenergytransition,asmentionedinthepassage?A.Theyfavorthecontinuationoffossilfueluseduetoexistinginvestments.B.Theyhighlighttheimmediateeconomicbenefitsofrenewableenergyadoption.C.Theyinvolvesignificantupfrontcostsfornewtechnologiesandinfrastructure.D.Theyprioritizejobcreationinthefossilfuelindustryoverenvironmentalconcerns.24.Whatarethekeyfactorsthatcaninfluencethesuccessoftheenergytransition,asmentionedinthepassage?A.Thelackofinternationalcooperationandglobalagreements.B.Governmentpolicies,publicsupport,andtechnologicalinnovation.C.Thedominanceoffossilfuelindustriesandtheirresistancetochange.D.Theslowadoptionofrenewableenergytechnologiesduetohighcosts.25.Whatarethepotentialbenefitsofthetransitiontorenewableenergy,asmentionedinthepassage?A.Itwillleadtojoblossesincommunitiesdependentonfossilfuels.B.Itwillreduceenergysecurityandincreasedependenceonimports.C.Itwillcreatenewjobs,improveenergysecurity,andpromotesocialequity.D.Itwillhaveminimalimpactontheglobalclimatecrisis.试卷答案第一部分长篇阅读1.B解析思路：文章首段明确指出，“gigeconomy”的核心是“digitalplatformsthatconnectserviceproviderswithconsumersdirectly”，即通过数字平台直接连接服务提供者和消费者。选项B准确概括了这一核心特征。选项A与gig经济的灵活性相悖；选项C是传统就业模式的特点；选项D描述的是传统雇佣关系，而非gig经济。2.C解析思路：文章第二段具体说明了哪些人群容易被gig工作吸引，明确提到了“students,parents,retirees,andthoseseekingsupplementaryincome”，即学生、家长、退休人员以及寻求额外收入的人。选项C的描述与原文一致。选项A、B与gig工作的灵活性特点不符；选项D虽然gig工作可以自由选择，但主要吸引力在于其灵活性和补充性，而非建立完整业务。3.B解析思路：文章第三段的核心是讨论缺乏传统工作保障的“majordrawback”，并具体解释了这会导致“financialinstability,especiallyduringeconomicdownturns”以及“lackofbenefitssuchashealthinsurance,paidleave,orretirementplans”。选项B准确概括了这一点。选项A、C、D并非缺乏保障的直接后果或主要问题。4.C解析思路：文章第四段明确指出，公司通过将gig工人“classifyasindependentcontractorsratherthanemployees”，目的是“avoidinglegalobligationssuchasminimumwagepaymentsandovertimeregulations”。选项C准确描述了这一点。选项A、B、D与公司的行为和目的不符。5.B解析思路：文章第五段讨论了平台使用“algorithms”的问题，并指出“Platformsoftenexerciseconsiderablecontroloverworkersthroughalgorithmsthatdeterminetaskassignments,pricing,andevenworkinghours”，这意味着工人“havelimitedrecourseiftheybelievetheplatformisunfair”。选项B准确概括了算法带来的问题——工人控制权受限。选项A、C、D并非算法直接导致的主要问题。6.C解析思路：文章第六段提到了“innovationssuchasAI-driventaskmatchingandblockchain-basedpaymentsystemsaimtoaddresssomeoftheexistingissues”，即通过人工智能和区块链等新技术来解决gig经济中存在的问题。选项C准确概括了这一点。选项A、B、D是解决方法的一部分或相关因素，但并非文中提到的具体创新解决方案。7.B解析思路：文章最后一段明确指出，随着劳动力市场继续演变，“findingabalancebetweentheflexibilityofgigworkandtheprotectionsoftraditionalemploymentwillbecrucial”。选项B准确概括了这一点。选项A、C、D并非文中强调的未来关键所在。第二部分仔细阅读8.B解析思路：文章首段的核心观点是，现代对“well-being”的理解已经超越了传统的“happinessasmerepleasureorcontentment”，而是一个“holisticapproach”包括“mentalhealth,physicalhealth,socialconnections,andasenseofpurpose”。选项B准确概括了这一核心概念。选项A与文章观点相反；选项C、D只是well-being的组成部分，并非整体概念。9.C解析思路：文章第二段明确提到了“Practicessuchasmindfulnessmeditation,cognitive-behavioraltherapy,andregularphysicalactivityhavebeenshowntosignificantlyimprovementalwell-being”。选项C准确概括了文中提到的改善心理健康的实践。选项A、B与文相反；选项D忽略了其他有效方法。10.C解析思路：文章第三段明确指出，社会关系通过“provideemotionalsupport,reducestress,andenhancelifesatisfaction”来“playavitalroleinwell-being”。选项C准确概括了这一点。选项A、B、D与文章描述的作用不符。11.C解析思路：文章第四段讨论如何培养人生目标时，明确建议“Settinggoals,engaginginmeaningfulactivities,andreflectingonone'svaluescanhelpindividualscultivateasenseofpurpose”。选项C准确概括了文中提到的方法。选项A、B、D过于绝对或与文中建议不符。12.C解析思路：文章整体围绕“well-being”这一核心概念展开，介绍了其定义、组成部分以及重要性。选项C的“theimportanceofwell-beinganditscomponents”最准确地概括了文章主旨。选项A、B、D只是文章涉及的部分内容，并非核心主旨。13.C解析思路：文章最后一段明确指出，“well-beingisnotastaticstatebutadynamicprocess.Itrequiresongoingeffortandattention”。选项C准确概括了这一点。选项A、B、D都与文章描述的动态过程和个体努力不符。第三部分选词填空14.B解析思路：根据文章第一段，“ProponentsarguethatAIcanrevolutionizeindustriesbyautomatingrepetitivetasks,enhancingdecision-makingprocesses,andenablingthecreationofinnovativesolutions”，这里需要一个词表示AI带来的巨大“impact”，即影响或效应。选项B的“impact”符合语境。15.A解析思路：根据文章第二段，“Onemajorconcernisthedisplacementofjobs.AsAIsystemsbecomemoresophisticated,theymayperformtaskstraditionallydonebyhumans,leadingtounemploymentincertainsectors”，这里需要一个词表示AI带来的潜在“potential”（可能性或潜力）。选项A的“potential”符合语境。16.C解析思路：根据文章第二段，“AIalgorithmscananalyzemedicalimageswithunprecedentedaccuracy,assistingdoctorsindiagnosingdiseasesmoreefficiently”，这里需要一个副词修饰“assistingdoctorsindiagnosingdiseases”，表示更有效率地。选项C的“efficiently”符合语境。17.D解析思路：根据文章第二段，“thereareethicalconsiderationsregardingdataprivacyandsecurity.AIsystemsoftenrelyonvastamountsofdata,raisingquestionsabouthowthisinformationiscollected,stored,andused.Withoutpropersafeguards,thereisariskofmisuseandexploitationofpersonaldata”，这里需要一个词表示面临的“challenges”（挑战）。选项D的“challenges”符合语境。18.E解析思路：根据文章第二段，“AnothersignificantchallengeisthepotentialforAItoperpetuatebiases.AIalgorithmsaretrainedondata,andifthisdatareflectsexistingsocietalbiases,theAIsystemmayinheritandevenamplifythem”，这里需要一个词表示潜在的“concerns”（担忧）。选项E的“concerns”符合语境。19.G解析思路：根据文章第三段，“Tomitigatetherisks,itiscrucialtodevelopandimplementethicalguidelinesandregulations.Governments,businesses,andresearchersmustcollaboratetoestablishstandardsthatensureAIisdevelopedandusedresponsibly”，这里需要一个词表示AI的“integration”（整合或融入）。选项G的“integration”符合语境。20.H解析思路：根据文章第三段，“ThegoalshouldbetocreateabalancedapproachwhereAIenhanceshumancapabilitiesratherthanreplacingthementirely.OnlythroughsuchaframeworkcanweensurethatAIservesasapositiveforceinshapingourcollectivefuture”，这里需要一个词表示AI的“capabilities”（能力）。选项H的“capabilities”符合语境。第四部分多项选择题21.B,D解析思路：根据文章第一段，“Renewableenergysourcessuchassolar,wind,andhydroelectricpowerhavegainedsignificanttractioninrecentyears.Solarenergy,harnessingthesun'sradiation,hasbecomeincreasinglycost-effective,particularlywithadvancementsinphotovoltaictechnology.Windenergy,generatedbyconvertingwindcurrentsintoelectricity,hasalsoexpandedrapidly...Theyhavebecomeparticularlypopularduetotheirhigherenergyyields.”选项B（提供成本有效和可持续的替代方案）和D（对环境的影响最小，是环境友好的）与原文描述的太阳能和风能的成本效益、可扩展性以及环境友好性相符。选项A（间歇性且需要显著的能源存储解决方案）是挑战，而非优势；选项C（依赖于集中式基础设施且易于扩展）与可再生能源的分布式特性不符。22.A,B,C,D解析思路：根据文章第二段，“Despitethegrowthofrenewableenergy,thetransitionawayfromfossilfuelsisnotwithoutobstacles.Onemajorchallengeistheissueofenergystorage...Thisvariabilityposesac