2029英语四级试题

2029英语四级试题

PartIWriting(30minutes)Directions:Forthispart,youareallowed30minutestowriteanessayontheimpactofartificialintelligenceonpersonalcareerdevelopment.Youshouldwriteatleast120wordsbutnomorethan180words.PartIIReadingComprehension(40minutes)SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.Youmaynotuseanyofthewordsinthebankmorethanonce.Theconceptofa"smartcity"israpidlyevolvingfromafuturisticvisionintoatangiblerealityinmanypartsoftheworld.Atitscore,asmartcityutilizesdigitaltechnologyanddata-drivensolutionstoenhancethe(1)______ofurbanservices,improvethequalityoflifeforitsresidents,andfostersustainableeconomicgrowth.Sensors,InternetofThings(IoT)devices,andbigdataanalyticsare(2)______integratedintoinfrastructure,fromtrafficmanagementandenergygridstowastecollectionandpublicsafety.Thisdigitaltransformationpromisessignificant(3)______.Forinstance,intelligenttrafficsystemscan(4)______congestionandreducecommutetimesbyanalyzingreal-timedata.Smartgridscanoptimizeelectricitydistribution,(5)______energywaste.Furthermore,dataanalyticscanhelpcityplannersmakemoreinformeddecisionsaboutresource(6)______andurbandevelopment.However,thetransitiontosmartcitiesisnotwithoutchallenges.Significantfinancialinvestmentisrequiredfortheinitialdeploymentandongoingmaintenanceofthetechnological(7)______.Perhapsmorecritically,themassivecollectionofdataraisesseriousconcernsaboutdataprivacyandsecurity.Citizensmayfeel(8)______abouthowtheirpersonalinformationisgathered,used,andprotected.Additionally,thereisariskthatthebenefitsofsmarttechnologymaynotbe(9)______distributed,potentiallywideningthedigitaldividebetweendifferentsocioeconomicgroups.To(10)______thesechallenges,abalancedapproachisessential.Transparentpolicies,robustcybersecuritymeasures,andinclusiveplanningarecrucialtoensurethatsmartcitiesarenotonlyefficientbutalsoequitableandtrustworthyforallinhabitants.A)allocationB)benefitsC)cautiouslyD)combatE)efficientlyF)evenlyG)frameworkH)hesitantI)minimizeJ)nervousK)overlookedL)overcomeM)perceivedN)skepticalO)widespreadSectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.TheHiddenWorldofPlantCommunication[A]Forcenturies,plantswereconsideredpassive,silentoccupantsoftheirenvironment.Modernscience,however,hasunveiledacomplexworldofplantcommunication,revealingthattheyarefarfrominert.Plantsengageinsophisticatedchemical"conversations"bothaboveandbelowground,interactingwitheachother,insects,andotherorganismsinadelicatewebofinformationexchange.[B]Whenaplantisattackedbyherbivores,suchascaterpillars,itdoesn'tsufferinsilence.Thedamagedleavesreleaseacocktailofvolatileorganiccompounds(VOCs)intotheair.Thesechemicalsignalsserveasadistresscall.NeighboringplantsofthesameorrelatedspeciescandetecttheseVOCsand,inresponse,activatetheirowndefensemechanisms.Theymaybeginproducingtoxicchemicalsorcompoundsthatmaketheirleaveslesspalatablebeforetheherbivoresevenarrive,aformofpreemptivedefense.[C]Thisaerialalarmsystemisremarkablyspecific.ResearchhasshownthatplantscantailortheirVOCemissionstoindicatethetypeofattacker—whetherit'sachewinginsectlikeacaterpillarorasuckinginsectlikeanaphid.Nearbyplantscaninterpretthesenuancedsignalsandmobilizeappropriatedefenses,showcasingalevelofspecificityoncethoughtexclusivetoanimalcommunication.[D]Belowthesurface,anevenmoreintricatenetworkoperates:the"WoodWideWeb."Thistermreferstothevastsymbioticassociationbetweenplantrootsandmycorrhizalfungi.Thefungalfilaments,calledhyphae,connecttherootsofdifferentplants,formingabiologicalinternet.Throughthisnetwork,plantscanexchangenotonlychemicalwarningsaboutthreatsbutalsovitalnutrients.[E]Forexample,atreeunderstressfrominsectattackmaysendchemicalsignalsthroughthefungalnetworktoalertneighboringtrees.Moreastonishingly,older,well-established"mothertrees"canusethisnetworktosupporttheiroffspring.Theyhavebeenobserveddivertingcarbonandothernutrientsthroughthefungallinkstoshadedseedlingsstrugglingtosurviveintheunderstory,effectivelynurturingthenextgeneration.[F]Plantsalsocommunicatewithinsects,butnotalwaysdefensively.Whencertainfloweringplantsarepollinated,theyoftenreduceorstopproducingfloralscentsandnectar.Thissignalstopollinatinginsectsthattheirjobisdone,directingtheinsectstoother,still-unpollinatedflowers,therebyincreasingtheplant'sreproductiveefficiency.Conversely,someplantsunderattackreleaseVOCsthatattractthenaturalpredatorsoftheherbivoresharmingthem.Forinstance,acornplantinfestedwithcaterpillareggsmayemitcompoundsthatlureparasiticwasps,whichthenlaytheirowneggsinsidethecaterpillars,controllingthepestpopulation.[G]Theimplicationsofplantcommunicationareprofoundforagricultureandecology.Understandingthesechemicaldialoguescouldleadtonovel,sustainablepestmanagementstrategies,reducingrelianceonsyntheticpesticides.Farmersmightonedayuse"signal"compoundstoprimecropdefensesorconfusepests.Ecologically,itforcesustoreconsiderforestsnotascollectionsofindividualtreesbutascooperativecommunities,whereresourcesandinformationareshared.[H]Whiletheanalogytohumancommunicationorintelligenceistempting,scientistsurgecaution.Plantslackanervoussystemorabrain.Their"communication"isaresultofmillionsofyearsofevolutionaryadaptation,drivenbybiochemicalprocessesandnaturalselection.Itisaslow,automaticresponsetostimuli,notaconsciousdialogue.[I]Nevertheless,thediscoveryofplantsignalingchallengesouranthropocentricviewoflife.Itrevealsafundamentallayerofinterconnectednessinnature,whereinformationflowiscriticalforsurvival.Thequiet,greenworldaroundusisabuzzwithsilentconversations,aconstantexchangeofwarnings,assistance,andnegotiationsthathasbeenongoinglongbeforehumanswalkedtheEarth.11.Plantscanadjusttheirairbornechemicalsignalstomatchthespecificherbivorethreateningthem.12.Thefungalnetworkconnectingplantrootsenablesthetransferofbothresourcesandinformation.13.Aplantmaystopproducingscentafterbeingpollinatedtoguideinsectstootherflowers.14.Theconceptofplantcommunicationrequiresustoviewforestsasintegratedcommunitiesratherthanseparateentities.15.Whenattacked,someplantsreleasechemicalsthatattracttheenemiesoftheirattackers.16.Scientistswarnagainstdirectlycomparingplantcommunicationwithhumanintelligence.17.ThereleaseofVOCsbyadamagedplantcantriggerdefensivepreparationsinitsneighbors.18.Anestablishedtreecanprovidenutritionalsupporttoitsseedlingsthroughanundergroundnetwork.19.Theprimarypurposeofplantcommunicationisdescribedasanevolutionaryadaptation,notconsciousthought.20.Thetraditionalviewofplantsaspassiveorganismsiscontradictedbyrecentscientificfindings.SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).Youshoulddecideonthebestchoice.PassageOneQuestions21to25arebasedonthefollowingpassage.The"gigeconomy,"characterizedbyshort-termcontractsandfreelanceworkasopposedtopermanentjobs,hasbeenhailedasarevolutioninflexibilityandautonomyforworkers.PlatformslikeUber,Airbnb,andUpworkconnectserviceprovidersdirectlywithconsumers,promisingindividualsthefreedomtobetheirownboss,settheirownhours,andleveragetheirassetsorskills.Thismodelhasundoubtedlycreatedincomeopportunitiesformillionsandprovidedconsumerswithunprecedentedconvenienceandchoice.However,beneaththesurfaceofthisflexibleutopialiesignificantandgrowingconcernsaboutworkerwelfareandsocialstability.Thecoreissueistheclassificationofgigworkersasindependentcontractorsratherthanemployees.Thislegaldistinctionstripsthemoffundamentalprotectionsandbenefitsthattraditionalemployeesenjoy,suchasminimumwageguarantees,overtimepay,healthinsurance,paidleave,andemployercontributionstoretirementplans.Theirincomeisoftenunpredictableandsubjecttothewhimsofplatformalgorithms,customerratings,andmarketdemand.Furthermore,theisolationinherentingigworkcanerodeasenseofcollectiveidentityandbargainingpower.Traditionalworkplacesoftenfostersolidarityandprovidechannelsforcollectivenegotiationthroughunions.Incontrast,gigworkersaredispersed,competingagainsteachotheronglobalplatforms,andhavelittleleveragetonegotiatebettertermsorpayrates.Thispowerimbalanceisexacerbatedbythefactthatmanyworkersaredependentonasingleplatformfortheirlivelihood,makingthemvulnerabletosuddenchangesintermsofserviceordeactivationwithoutrecourse.Criticsarguethatthegigeconomyisnotcreatinganewwaveofentrepreneurshipbutrathera"precariat"–aclassofworkersinprecariousemploymentwithoutsecurityorbenefits.Theywarnthattheerosionofthestandardemployer-employeerelationshipcouldunderminedecadesofsocialprogressinlaborrights.Somejurisdictionshavebeguntorespondwithlegislationaimedatreclassifyingsomegigworkersormandatingcertainbenefits,buttheglobalregulatorylandscaperemainsfragmented.Proponentscounterthatregulationshouldbecarefulnottostifleinnovationandthegenuineflexibilitythatmanyworkersdesire.Theysuggestcreatinganew,thirdcategoryofworkerthatfallsbetweenemployeeandcontractor,withtailoredrightsandprotections.Thedebateisfarfromsettled,butitisclearthatasthegigeconomyexpands,societiesmustgrapplewithhowtopreserveitsbenefitswhileensuringafairandsecurefoundationfortheworkforcethatpowersit.21.Whatistheprimaryadvantageofthegigeconomyforworkersasmentionedinthepassage?A)Guaranteedstableincomeandcomprehensivebenefits.B)Thefreedomandflexibilitytomanagetheirownwork.C)Strongcollectivebargainingpowerandunionsupport.D)Highjobsecurityandpredictablecareeradvancement.22.Accordingtothepassage,whatisamajorproblemwithclassifyinggigworkersasindependentcontractors?A)Itpreventsthemfromusingmultipleplatformssimultaneously.B)Itlimitstheiraccesstotechnologicaltoolsandtraining.C)Itexcludesthemfromtraditionallaborprotectionsandbenefits.D)Itreducestheirefficiencyandproductivityonthejob.23.Theword"precariat"(Para.4)referstoagroupofworkerswhoareinasituationof______.A)highprestigeandincomeB)innovationandcreativityC)insecurityandinstabilityD)permanentemployment24.Whatissuggestedbysomeproponentsasapotentialsolutiontothegigeconomydilemma?A)Abolishingallgigeconomyplatformspermanently.B)Forcingallgigworkerstobecomefull-timeemployees.C)Creatinganewlegalcategoryforworkerswithtailoredrights.D)Reducinggovernmentinterventioninthelabormarketentirely.25.Whatisthemainpurposeofthepassage?A)Topromotethewidespreadadoptionofgigeconomyplatforms.B)TocontrastdifferentgigeconomyplatformslikeUberandUpwork.C)Toanalyzethebenefitsandchallengesofthegigeconomyforworkers.D)Topredictthecompletedisappearanceoftraditionalemployment.PassageTwoQuestions26to30arebasedonthefollowingpassage.Thephenomenonof"urbanheatislands"(UHIs)referstothesignificanttemperaturedifferencebetweenacityanditssurroundingruralareas,wherethecityismarkedlywarmer.Thistemperaturedisparityisprimarilyaconsequenceofhumanmodificationofthelandscape.Asnaturalvegetationisreplacedbyasphalt,concrete,brick,andotherbuildingmaterialsthatabsorbandretainheat,theurbanarea'scapacitytocoolitselfthroughevaporationisdrasticallyreduced.ThecausesofUHIsaremultifaceted.Darksurfaceslikeroadsandrooftopsabsorbalargepercentageofsolarradiation,re-radiatingitasheat.Thedense,verticalstructureofcitiestrapsthisheat,preventingitfromdissipatingeasily.Wasteheatfromvehicles,industrialprocesses,andairconditioningsystemsaddssubstantialanthropogenicheattotheenvironment.Furthermore,thelackoftreesandvegetationminimizesshadeandthecoolingeffectsofevapotranspiration(whereplantsreleasewatervapor).Theimpactsofurbanheatislandsareextensiveandserious.Mostdirectly,theyexacerbateheatwaves,leadingtoincreasedheat-relatedillnessesandmortality,particularlyamongtheelderly,children,andthosewithpre-existinghealthconditions.Highertemperaturesincreaseenergydemandforcooling,strainingpowergridsandleadingtohighergreenhousegasemissionsiftheelectricityisgeneratedfromfossilfuels.Elevatedtemperaturesalsocontributetotheformationofground-levelozone,akeycomponentofsmog,whichworsensairqualityandrespiratoryproblems.Additionally,warmerstormwaterrunoffcanharmaquaticecosystemsinlocalstreamsandrivers.MitigatingtheUHIeffectrequiresdeliberateurbanplanninganddesignstrategies.Increasingurbanalbedo(reflectivity)byusinglighter-coloredmaterialsforpavementsandroofscanreflectmoresunlight.Themosteffectivestrategy,however,isexpandingurbangreeninfrastructure.Plantingtreesalongstreets,creatingparksandgreenspaces,andimplementinggreenroofsandwallsprovideshade,promoteevapotranspiration,anddirectlycooltheair.Preservingandrestoringurbanwaterwaysalsohelps.Thesemeasuresnotonlycombatheatbutalsoimproveairquality,managestormwater,enhancebiodiversity,andincreasetheoveralllivabilityofcities.Addressingurbanheatislandsisnotmerelyamatterofcomfort;itisacriticalpublichealthandenvironmentalissue,especiallyinthecontextofglobalclimatechange,whichisexpectedtointensifyheatextremes.Proactiveadaptationthroughsmarterurbandesignisessentialforbuildingresilientandsustainablecitiesforthefuture.26.Whatisthemainreasonwhycitiesbecomewarmerthansurroundingruralareas?A)Higherpopulationdensitygeneratesmorebodyheat.B)Humanactivitiesandmaterialsthatstoreheatreplacenaturallandscapes.C)Citiesareusuallylocatedingeographicallywarmerregions.D)Ruralareashavemorecloudsandprecipitation.27.WhichofthefollowingisNOTmentionedasadirectcauseoftheurbanheatislandeffect?A)Heat-absorbingconstructionmaterials.B)Wasteheatfromhumanactivitiesliketransportation.C)Thereductionofnaturalcoolingprocesseslikeevaporation.D)IncreasedsolarradiationreachingtheEarth'ssurface.28.Whatisasignificantconsequenceofurbanheatislandsmentionedinthepassage?A)Decreaseddemandforairconditioninginsummer.B)Improvedwaterqualityinurbanrivers.C)Higherratesofheat-relatedhealthproblems.D)Reducedformationofground-levelozone.29.Accordingtothepassage,whatisconsideredthemosteffectivestrategytomitigatetheUHIeffect?A)Usingmoreenergy-efficientairconditioners.B)Paintingallbuildingswhite.C)Expandinggreeninfrastructureliketreesandparks.D)Reducingthenumberofvehiclesincities.30.Whatdoesthe