考研英语一模拟试卷全套-2025（高频考点）

考研英语一模拟试卷全套_2025（高频考点）一、单选题（本大题共10小题，每小题2分，共20分）1.Thepassageisprimarilyconcernedwithdiscussingthe________ofsocialmediaonteenagers'mentalhealth.A.negativeconsequencesandpotentialsolutionsB.positiveimpactsandfuturedevelopmentC.historicalevolutionandtechnologicaladvancementsD.economicbenefitsandcommercialapplications解析：本题考查文章主旨。原文通过对比实验数据和社会调查结果，重点分析社交媒体使用频率与青少年焦虑、抑郁之间的关联，并提出减少屏幕时间等解决方案。选项A准确概括了文章结构：前半部分列举社交网络导致的睡眠障碍、社交焦虑等负面现象，后半部分建议通过家庭指导和平台监管缓解问题。选项B与文中数据矛盾，实验显示过度使用反而加剧心理问题。选项C偏离主题，文章未涉及技术发展。选项D的商业视角未在文中出现。干扰项B通过"positiveimpacts"制造迷惑，但文中仅提及有限社交活动的积极作用，未作为核心论点。2.Accordingtothestudycitedinparagraph3,whatisthemostsignificantfactorcontributingtosocialmedia-inducedanxiety?A.ThevolumeofnotificationsreceiveddailyB.ThenumberoffollowersauserhasC.Thecomparisonbetweenreal-lifeandonlinepersonasD.Theaveragedailyscreentime解析：本题考查细节定位。第三段引用心理学实验指出，青少年因"socialcomparison"（与他人对比）产生的焦虑远超单纯的时间投入。实验对比了两组受试者：一组被要求关注完美生活方式的博主，另一组浏览普通用户内容，结果显示前者焦虑指数显著更高。选项C的表述与原文"socialcomparison"概念完全一致，包括"real-lifeandonlinepersonas"的对比维度。选项A的"notifications"是次要因素，文中仅作为焦虑的触发器。选项B的"followers"数量未作为核心变量，实验数据未显示其直接影响。选项D的时间因素被定性为"correlational"而非因果关系，原文明确因果关系指向认知比较。3.Theauthor'stoneinthefourthparagraphcanbestbedescribedas________.A.sarcasticanddismissiveB.objectiveandcriticalC.empatheticandsupportiveD.pessimisticandfatalistic解析：本题考查作者态度。第四段通过引用哈佛大学研究数据，客观呈现社交媒体使用与抑郁评分的线性关系（r=0.65），同时列举了《青少年心理健康报告》的统计结果。作者未加入个人评判，仅呈现数据趋势，并引用专家建议作为补充信息。选项B的"objective"对应数据呈现，"critical"体现对过度使用问题的审慎态度。选项A的"sarcastic"与文中数据陈述风格不符。选项C的"empathetic"与客观描述矛盾。选项D的"fatalistic"过度解读，原文强调可控性。4.Whatisthefunctionoftheanecdoteaboutthehighschoolstudentinparagraph5?A.ToprovideevidenceforthecorrelationbetweensocialmediaandacademicperformanceB.Toillustratethelong-termpsychologicaleffectsofsocialmediaaddictionC.TocontrastthebehaviorofurbanandruralteenagersD.Toargueagainstthenecessityofdigitaldetoxprograms解析：本题考查修辞分析。第五段通过具体案例展示长期使用Instagram导致的认知扭曲：将日常社交场景（如生日聚会）转化为"filterablemoments"，导致自我评价依赖点赞数量。案例作用在于具象化抽象的心理机制，为前文提出的"algorithmicself"概念提供生活化证据。选项B准确概括了案例揭示的问题本质，即长期使用导致的认知变形。选项A的"academicperformance"是无关信息，案例未提及成绩。选项C的城乡对比与案例背景无关。选项D的否定态度与案例呈现的后果一致，但未说明案例功能。5.Thepassagesuggeststhatwhichofthefollowingwouldbeaneffectiveinterventionagainstsocialmedia-inducedanxiety?A.Restrictingallsocialmediaplatformsforteenagersunder18B.Encouragingtheuseoffilterstoenhanceself-imageC.PromotingmindfulnesspracticesalongsidedigitalliteracyeducationD.Increasingtheminimumageforsocialmediaaccountregistration解析：本题考查解决方案。全文从第三段开始提出多维度对策：认知行为疗法（CBT）、平台算法调整、家庭沟通、正念训练等。第六段集中讨论数字素养与正念结合的效果，指出青少年需学会批判性看待网络内容，同时通过冥想等技巧调节情绪反应。选项C完整包含文中提出的两个关键要素：正念训练（mindfulnesspractices）对应第六段提到的情绪调节方法，数字素养教育对应第三段建议的批判性思维培养。选项A的绝对化措施未被提及。选项B的滤镜使用与文中批判态度矛盾。选项D的年龄限制未作为解决方案，仅是预防措施之一。6.Theterm"algorithmicself"asusedinparagraph2refersto________.A.anindividual'sabilitytomanipulatesocialmediaalgorithmsB.thetendencytoconstructacuratedonlineidentityC.thesubconsciousinfluenceofsocialmediaonself-perceptionD.thedevelopmentofadistinctpersonalitythroughonlineinteractions解析：本题考查概念理解。第二段定义"algorithmicself"时指出，现代社交媒体通过推荐机制强化用户特定兴趣，导致自我认知逐渐被平台数据塑造。文中用"curateddigitalpersona"（精心构建的数字形象）解释该概念，并与传统自我认知区分。选项C准确反映了这种被动被塑造的状态，即算法通过数据反馈影响用户的自我评价标准。选项A的"manipulation"与文中描述的被动性相反。选项B的"curatedonlineidentity"是现象而非本质，原文强调的是认知层面的影响。选项D的"personalitydevelopment"与认知扭曲的内涵不符。7.Accordingtotheresearchfindingsinparagraph4,whichdemographicgroupshowsthehighestcorrelationbetweensocialmediauseandmentaldistress?A.Teenagersaged13-15B.CollegestudentsintheirfirstyearC.YoungadultswithestablishedcareersD.Middle-agedprofessionalswithfamilies解析：本题考查数据解读。第四段引用《青少年心理健康报告》的数据表格显示，13-15岁组别（adolescentgroup）的焦虑评分与社交平台使用时长相关性系数（r=0.72）显著高于其他年龄段，且抑郁指数呈现阶梯式增长。选项A与原文数据完全一致，包括年龄范围和具体数值。选项B的"first-yearcollegestudents"在文中未作为独立群体出现，相关数据被归入青少年类别。选项C的"youngadults"的相关性系数为0.58，低于青少年组。选项D的"middle-agedprofessionals"未在研究中提及。8.Thepassagesuggeststhatwhichofthefollowingisapotentialcounterargumenttotheclaimsmadeinthefirstparagraph?A.SocialmediaplatformsaredesignedtopromotepositivesocialinteractionB.MostteenagersareabletomaintainahealthybalancebetweenonlineandofflinelifeC.ThementalhealthissuesofoldergenerationswerenotaswelldocumentedinthepastD.Economicincentivesforsocialmediacompaniesmayovershadowhealthconcerns解析：本题考查批判性思维。第一段通过引用《时代杂志》调查指出，62%的青少年认为社交媒体对心理健康有负面影响，并列举了抑郁和睡眠障碍等具体症状。潜在反驳点应针对这些论据的局限性。选项D准确指出了商业利益可能扭曲研究的可能性，这是文中未讨论的视角。选项A的"positiveinteraction"与文中负面数据矛盾。选项B的"healthybalance"未在原文作为反驳论据。选项C的历史数据问题未在文中提出。9.WhatistheprimarypurposeofthecomparisonbetweenInstagramandtraditionalsocialmediainparagraph6?A.TohighlightthesuperiordesignofInstagram'suserinterfaceB.TodemonstratetheevolvingnatureofsocialmediaplatformsC.ToexplainwhyInstagramhashigherengagementratesD.Tocontrastthepsychologicalimpactofdifferentplatforms解析：本题考查文本结构分析。第六段对比Instagram（以滤镜和视觉呈现为主）与Facebook（以文字和活动为主）的心理影响，指出Instagram的算法机制更容易诱导"socialcomparison"和"image-basedself-esteem"。这种对比的目的是阐释不同平台设计如何影响认知过程。选项D准确概括了对比的核心目的，即平台特性与心理后果的因果关系。选项A的设计问题与认知影响无关。选项B的"evolution"未作为重点。选项C的"engagementrates"是表面现象，未涉及深层心理机制。10.Theauthorconcludesbysuggestingthat________.A.socialmediacompaniesshouldbeheldlegallyresponsibleformentalhealthissuesB.theproblemofsocialmediaaddictionrequiresimmediateglobalinterventionC.individualsshouldtakepersonalresponsibilityfortheirsocialmediaconsumptionD.furtherresearchisneededtoestablishdefinitivecausalrelationships解析：本题考查结论分析。最后一段提出"personalagency"（自主性）概念，强调通过数字素养教育使青少年掌握主动选择权，包括屏蔽负面内容、调整通知频率等。选项C完整反映了这种赋权思想，既承认平台问题，也强调个人应对策略。选项A的"legalresponsibility"未在文中提出。选项B的"globalintervention"过于夸张，文中仅讨论教育层面。选项D的"researchneed"与文中提出的解决方案方向相反。二、填空题（本大题共10小题，每小题2分，共20分）1.ThelongitudinalstudyconductedbyStanfordUniversityrevealeda________correlationbetweendailyInstagramusageandself-esteemscoresamongfemaleparticipantsaged16-20.2.AccordingtoDr.Chen'sexperiment,participantswhowereexposedto"perfectlife"postsonPinterestshowedsignificantlyhigherlevelsof________thanthosewhoviewedordinaryhouseholdcontent.3.Theconceptof"digitaldetox"asdiscussedinparagraph4referstoaperiodof________duringwhichindividualsconsciouslyreducetheirsocialmediaengagement.4.Researchpresentedinthethirdparagraphsuggeststhattheaverageteenagercheckstheirsmartphone________timesperhourduringschoolhours.5.Theterm"echochambers"asusedinparagraph2describesonlineenvironmentswhere________tendtoamplifysimilarviewpointswhileminimizingexposuretodissentingopinions.6.AkeyfindingofthePewResearchCentersurveyinparagraph5wasthat________ofteenagersbelievesocialmediahasmadetheirlifeworseratherthanbetter.7.Thepassagementionsthatthe"socialcomparison"phenomenonisparticularlypronouncedamongadolescentsbecausetheiridentityformationisstill________duringthisdevelopmentalstage.8.Accordingtothecasestudyofthehighschoolstudentinparagraph5,theindividual'sself-worthbecameincreasinglydependentonthenumberof________receivedontheirposts.9.Theauthorsuggeststhatimplementinga"digitalcurriculum"inschoolswouldhelpstudentsdevelop________tocriticallyevaluateonlineinformation.10.Thefinalparagrapharguesthatthesolutiontosocialmedia-inducedanxietyliesinfosteringindividual________ratherthanrelyingsolelyonplatform-basedrestrictions.标准答案11.negative12.bodydysmorphia13.screen-free14.15-2015.algorithms16.45%17.incomplete18.likes19.medialiteracy20.agency解析21.原文第三段实验数据显示Instagram使用与女生自尊评分呈负相关（r=-0.61），填"negative"准确反映这一发现。22.第四段引用心理学实验指出Pinterest的"perfectlife"内容导致躯体变形障碍（bodydysmorphia）症状加剧，原文用"distortedbodyimage"描述这一现象。23.第六段建议的数字排毒（digitaldetox）指完全停止使用社交媒体的"screen-free"时间段，原文强调"completewithdrawal"的概念。24.第五段引用教育部门调查指出高中生每小时查看手机15-20次，填具体数值范围符合原文数据。25.第二段用"echochambers"解释算法如何形成观点茧房，核心机制是"algorithms"的筛选作用。26.Pew研究中心调查数据在第五段提到45%的青少年认为社交媒体让生活更糟，填具体百分比。27.原文解释青少年身份形成处于"incomplete"状态，导致他们更易受社会比较影响。28.案例中高中生将自我价值与Instagram的"likes"数量绑定，原文用"validationmetrics"描述这类量化指标。29.作者在第六段提出学校应开设"medialiteracy"课程培养批判性思维，与数字素养教育并列。30.结尾段落强调培养"agency"（自主性）而非依赖平台限制，原文用"personalautonomy"解释这一概念。三、判断题（本大题共10小题，每小题2分，共20分）1.Thepassageclaimsthatsocialmediaplatformsintentionallydesigntheiralgorithmstopromotenegativesocialcomparisonamongusers.2.Accordingtotheresearchcitedinparagraph3,thereisadirectcausalrelationshipbetweensocialmediauseandsleepdisorders.3.Theauthorexplicitlysuggeststhatallsocialmediaplatformsshouldbebannedforindividualsunder18yearsofage.4.Thecasestudyinparagraph5demonstrateshowsocialmediacanleadtoadistortedperceptionofreality.5.Theterm"algorithmicself"referstotheabilityofuserstoinfluencesocialmediaalgorithmsthroughtheirbehavior.6.Accordingtothedatainparagraph4,thecorrelationbetweensocialmediauseandmentaldistressisstrongeramongolderadultsthanamongteenagers.7.Thepassageimpliesthatdigitalliteracyeducationaloneissufficienttoaddressthepsychologicalimpactsofsocialmedia.8.Theauthorarguesthatsocialmediacompaniesbearmoralresponsibilityforthementalhealthproblemsoftheirusers.9.Theresearchmentionedinparagraph2showsthat70%ofteenagersbelievesocialmediaplatformshaveapositiveimpactontheirlives.10.Thefinalparagraphsuggeststhatsocialmedia-inducedanxietycanbeeffectivelytreatedthroughmedicationalone.标准答案11.TRUE12.FALSE13.FALSE14.TRUE15.FALSE16.FALSE17.FALSE18.FALSE19.FALSE20.FALSE解析21.TRUE.第二段指出算法通过"normalizationbias"强化理想化内容，第四段明确提到平台"profit-drivendesign"导致负面内容传播，构成隐性设计缺陷。22.FALSE.第三段实验显示相关性（r=0.58），但作者强调是"correlationnotcausation"，并建议通过认知行为疗法缓解问题。23.FALSE.作者在第六段提出分级监管建议，未支持全面禁令，仅反对"excessiveuse"。24.TRUE.案例中高中生将生日聚会（现实）与Instagram照片（虚拟）对比，导致"realitydistortion"（认知扭曲）。25.FALSE.原文定义"algorithmicself"为被动被算法塑造的自我认知，而非用户主动影响算法。26.FALSE.第四段数据明确显示青少年组相关性（r=0.72）高于其他年龄段（r=0.55）。27.FALSE.作者在第六段强调数字素养需与正念训练结合，未认为单靠教育足够。28.FALSE.作者主张赋权用户而非追究平台责任，第六段用"personalagency"替代道德归因。29.FALSE.第二段引用的《时代杂志》调查显示62%的青少年认为社交媒体有负面影响。30.FALSE.结尾段落主张通过数字素养和正念训练而非药物解决心理问题。四、简答题（本大题共4小题，每小题4分，共16分）1.Explaintheconceptof"socialcomparison"asdiscussedinthepassageandhowitcontributestosocialmedia-inducedanxiety.2.DescribethekeyfindingsoftheStanfordUniversitylongitudinalstudymentionedinparagraph4regardingsocialmediauseandmentalhealth.3.Accordingtothepassage,whatarethemaincomponentsofaneffectiveinterventionstrategyagainstsocialmediaaddiction?4.Howdoestheauthordifferentiatebetween"curatedonlinepersonas"andauthenticself-identityinthecontextofsocialmedia?标准答案5."Socialcomparison"referstothetendencytoevaluateoneselfbycomparingwithothers.Thepassageexplainsthatsocialmediaplatformsamplifythisphenomenonthrough:(1)"perfectlife"contentnormalization,(2)quantifiablemetricslikelikesandfollowers,and(3)algorithmicfilteringofsimilaropinions.Thisconstantevaluationleadstoanxietywhenrealityfailstomatchcuratedonlinestandards,asdescribedinthecasestudyofthehighschoolstudentwhoequatedsocialvalidationwithself-worth.6.TheStanfordstudy(paragraph4)foundthatfemaleparticipantsaged16-20showedastrongpositivecorrelation(r=0.72)betweendailyInstagramusageandself-esteemscores,withasignificantincreaseindepressivesymptomsafter3monthsofheavyusage.Keyfindingsinclude:(1)correlationwasstrongerinuserswhospentover2hoursdailyontheplatform,(2)participantsreportedincreasedbodydissatisfactionafterexposuretofashionandbeautycontent,and(3)cognitivebehavioraltherapyreducedanxietysymptomsby40%whencombinedwithusagelimits.7.Effectiveinterventionscombine:(1)Digitalliteracyeducation(paragraph6):teachingcriticalevaluationofonlinecontent,recognizingalgorithmicmanipulation,andunderstandingsocialmedia'scommercialpurposes.(2)Mindfulnesspractices:developingemotionalregulationskillstomanagesocialcomparisontriggers.(3)Usagemanagement:implementingtimelimits,blockingnegativeaccounts,andschedulingscreen-freeperiods.(4)Familyguidance:encouragingopendiscussionsaboutonlineexperiencesandsettingjointdigitalrules.8.Theauthordifferentiates"curatedonlinepersonas"fromauthenticself-identitythrough:(1)motivation:onlinepersonasaredeliberatelyconstructedforexternalvalidation,whileauthenticidentityreflectsinternalvalues.(2)consistency:curatedprofileschangebasedontrendsoraudiencepreferences,whereasauthenticidentityremainsstable.(3)depth:onlinepresentationsfocusonsurface-levelachievements,whileauthenticidentityincludesvulnerabilitiesandcontradictions.Thepassageusestheexampleofthestudentwhoshowed"perfect"vacationphotosbutstruggledwithsocialisolationinreallife,illustratingthegapbetweenperformativeonlineidentitiesandlivedexperience.五、应用题（本大题共4小题，每小题6分，共24分）1.Ahighschoolpsychologyclassisconductingaunitonsocialmediaandmentalhealth.Designa3-weekcurriculumoutlinethatincorporatesthekeyconceptsdiscussedinthepassage.Includeatleastthreeactivitiesforeachweek.2.Supposeyouareaschoolcounselorandagroupof10teenagestudentshasexpressedanxietyrelatedtosocialmediause.Describea90-minutegroupsessionplanthataddressestheissuesraisedinthepassage.3.Createapolicyproposalforamiddleschoolregardingsocialmediausageduringschoolhours.Thepolicyshouldincorporatefindingsfromtheresearchdiscussedinthepassage.4.Writeashortessay(about300words)arguingwhethersocialmediaplatformsshouldimplementmandatory"digitalwellness"featuressimilartothoseproposedinthepassage.标准答案5.3-WeekCurriculumOutlineWeek1:UnderstandingSocialMediaPsychology-Activity1:GroupanalysisofInstagrampoststoidentify"perfectlife"elementsandtheiremotionalimpact-Activity2:Role-playingexercise:Comparingonlineself-presentationwithreal-lifeexperiences-Activity3:Lectureon"socialcomparison"theorywithcasestudyexamplesWeek2:PlatformAnalysis-Activity1:Researchprojectcomparingalgorithmdesignsofdifferentplatforms(e.g.,TikTokvs.LinkedIn)-Activity2:Debate:"Shouldplatformshidelikecounts?"withevidencefromPewResearch-Activity3:Designing"digitalwellness"featuresforhypotheticalsocialmediaappsWeek3:InterventionStrategies-Activity1:Mindfulnessmeditationsessionwithfocusonsocialmediatriggers-Activity2:Creatingpersonal"socialmediacontracts"withusagelimits-Activity3:GuestspeakerfrommentalhealthclinicdiscussingCBTtechniques6.90-MinuteGroupSessionPlan7.Icebreaker(10min):TwoTruthsandaLieaboutsocialmediahabits8.Psychoeducation(15min):Discussing"socialcomparison"anditseffectsusingpassagequotes9.Activity1(20min):"Digitalfootprint"exercise:Studentsanalyzehowtheypresentthemselvesonline10.Groupdiscussion(15min):Casestudyanalysisofthehighschoolstudentfromthepassage11.Mindfulnesspractice(10min):Guidedbreathingtoreduceanxietytriggers12.Actionplanning(15min):Developingindividualsocialmediareductiongoalswithpeersupport13.Reflection(5min):Exitticket:Onetakeawayfromthesession14.MiddleSchoolSocialMediaPolicy-Screen-FreePeriods:Alldevicesmustbeturnedoffduringlunchandfirstperiod-DigitalWellnessEducation:Requiredclassonsocialcomparisonandmentalhealth(basedonpassagefindings)-ParentalCollaboration:Monthlyworkshopsonmonitoringteenusage(addressingPewResearchdata)-PlatformRestrictions:SchoolWi-FiblocksInstagram/Facebookafter3PMonschooldays-WellnessResources:Counselingservicesavailableforsocialmedia-relatedanxiety-Exceptions:Approvededucationalapps(e.g.,KhanAcademy)withteacherpermission15.ArgumentforMandatoryDigitalWellnessFeaturesSocialmediaplatformsshouldimplement"digitalwellness"toolssimilartothoseproposedinthepassage.Thepassagedemonstratesthatalgorithmicdesigninherentlypromotesharmfulbehaviors:(1)"perfectlife"contentnormalizesunrealisticexpectations,asshownintheStanfordstudywherefashionpostsincreasedbodydysmorphia.(2)Likemetricscreatedependencyonexternalvalidation,asthecasestudyillustrates.(3)Algorithmicechochamberssuppresscriticalthinking,contradictingtheneedfor"medialiteracy"education.Mandatoryfeatures—suchasusagetimers,notificationcontrols,andcontentwarnings—addresstheseissuesatthesystemiclevel.Unlikeindividualefforts,platforminterventionscanreachalluserssimultaneously.Forexample,Instagram's"YourTime"featureinthepassagehasbeenshowntoreduceproblematicusageby20%.Whilesomeargueprivacyconcernslimitsuchtools,thepassageemphasizesthatmentalhealthrisksoutweightheseobjections,particularlyforadolescentswhoseidentityformationisstillincomplete.标准答案及解析（以下为各题解析，按题目顺序排列）一、单选题解析1.A项正确，全文分为两大部分：前半部分用实验数据（第二段实验、第四段统计）和案例（第五段）论证社交媒体负面影响；后半部分提出解决方案（第六段）。B项错误，文中未提及任何正面影响。C项错误，全文未讨论技术发展。D项错误，商业应用未在文中出现。干扰项B通过"positiveimpacts"制造迷惑，但文中仅提及有限社交活动的积极作用，未作为核心论点。2.C项准确，第三段心理学实验明确指出"socialcomparison"（与他人对比）是焦虑主要来源，实验对比了关注完美博主和普通用户两组，前者焦虑指数显著更高。A项错误，"notifications"是次要因素。B项错误，"followers"数量未作为核心变量。D项错误，时间因素被定性为相关而非因果。3.B项准确，第四段客观呈现哈佛大学实验数据（r=0.65）和青少年心理健康报告统计，未加入个人评判，仅呈现数据趋势，并引用专家建议作为补充信息。A项错误，全文采用客观陈述风格。C项错误，作者未展现对青少年问题的共情态度。D项错误，文中强调可控性而非宿命论。4.B项准确，第五段案例通过Instagram使用导致自我认知扭曲（将日常社交转化为"filterablemoments"）来展示长期使用的后果，印证"algorithmicself"概念。A项错误，案例未涉及学业。C项错误，未进行城乡对比。D项错误，案例呈现的是问题而非解决方案。5.C项准确，第六段提出数字素养与正念结合的解决方案，数字素养对应第三段的批判性思维培养，正念训练对应第六段的情绪调节方法。A项错误，全文未支持全面禁令。B项错误，滤镜使用与文中批判态度矛盾。D项错误，年龄限制未作为解决方案。6.C项准确，第二段定义"algorithmicself"时指出，现代社交媒体通过推荐机制强化用户特定兴趣，导致自我认知逐渐被平台数据塑造。文中用"curateddigitalpersona"解释该概念，并与传统自我认知区分。A项错误，原文强调被动性。B项错误，"curatedidentity"是现象而非本质。D项错误，与认知扭曲无关。7.A项准确，第四段引用《青少年心理健康报告》的数据表格显示，13-15岁组别（adolescentgroup）的焦虑评分与社交平台使用时长相关性系数（r=0.72）显著高于其他年龄段，且抑郁指数呈现阶梯式增长。B项错误，"first-yearcollegestudents"未作为独立群体。C项错误，其他年龄段相关性更低。D项错误，未提及中年群体。8.D项准确，全文未讨论商业利益问题，但该选项提出可能存在的商业利益与健康问题的冲突，构成对文中论据的潜在反驳。A项错误，全文未支持社交媒体的正面功能。B项错误，文中未提及青少年保持平衡的能力。C项错误，历史数据问题未在文中提出。9.D项准确，第六段对比Instagram和Facebook的心理影响，指出Instagram的算法机制更容易诱导"socialcomparison"和"image-basedself-esteem"，这种对比的目的是阐释不同平台设计如何影响认知过程。A项错误，未讨论界面设计。B项错误，未讨论平台演变。C项错误，未讨论用户参与度。10.C项准确，最后一段提出"personalagency"（自主性）概念，强调通过数字素养教育使青少年掌握主动选择权，包括屏蔽负面内容、调整通知频率等。A项错误，全文未支持法律责任。B项错误，未提出全球干预。D项错误，文中已提出解决方案。二、填空题解析1.原文第三段实验数据显示Instagram使用与女生自尊评分呈负相关（r=-0.61），填"negative"准确反映这一发现。2.第四段引用心理学实验指出Pinterest的"perfectlife"内容导致躯体变形障碍（bodydysmorphia）症状加剧，原文用"distortedbodyimage"描述这一现象。3.第六段建议的数字排毒（digitaldetox）指完全停止使用社交媒体的"scr