全国英语等级考试（PETS）四级全真模拟试题(陕西2026年上半年)

全国英语等级考试（PETS）四级全真模拟试题(陕西2026年上半年)SectionIListeningComprehensionDirections:ThissectionisdesignedtotestyourabilitytounderstandspokenEnglish.Therearethreepartsinthissection:PartA,PartBandPartC.Remember,whileyouaredoingthetest,youshouldfirstputdownyouranswersinyourtestbooklet.Attheendofthelisteningcomprehensionsection,youwillhave5minutestotransferyouranswersfromyourtestbookletontoANSWERSHEET1.PartAForQuestions1-5,youwillhearanintroductionaboutthedevelopmentofartificialintelligenceinhealthcare.Whileyoulisten,filloutthetablewiththeinformationyouhaveheard.Writeonly1wordornumberforeachblankonANSWERSHEET1.PartBForQuestions6-10,youwillhearaconversationbetweenastudentandaprofessoraboutaresearchproject.Whileyoulisten,completethesentencesandanswerthequestions.Usenomorethan3wordsforeachblankoransweronANSWERSHEET1.PartCYouwillhearthreedialoguesormonologues.Beforelisteningtoeachone,youwillhave5secondstoreadthequestion.Afterlistening,youwillhavetimetoanswerthequestion.ChoosethecorrectansweronANSWERSHEET1.Questions11-13arebasedonthefollowingmonologueabouturbanbeekeeping.11.Whatistheprimaryreasonfortherecentincreaseinurbanbeekeeping?[A]Urbanhoneyissweeterthanruralhoney.[B]Citizenswanttoreconnectwithnatureandsupportbiodiversity.[C]Citygovernmentsareofferinglargefinancialsubsidies.[D]Ruralbeesarefacingtotalextinction.12.Whatchallengedourbanbeesfaceaccordingtothespeaker?[A]Lackoffloweringplantsinthecity.[B]Highlevelsofpesticidesincityparks.[C]Poornutritionduetomonocultureurbanlandscaping.[D]Extremeurbanheatislandeffectsduringsummer.13.Whatadvicedoesthespeakergivetonewurbanbeekeepers?[A]Useonlyimportedbees.[B]Keephivesonthegroundlevel.[C]Plantdiversenativeflowersintheirgardens.[D]Harvesthoneyeveryweek.Questions14-16arebasedonthefollowingdialogueaboutamuseumexhibition.14.Whydidthewomandecidetovisitthemuseumtoday?[A]Itisafreeadmissionday.[B]Sheisresearchingforhernovel.[C]Thespecialexhibitiononancientastronomyisendingsoon.[D]Shewantstomeetthecurator.15.Whatdoesthemansayabouttheastrolabeexhibit?[A]Itwasusedprimarilyfornavigationatsea.[B]Itwasapurelydecorativeitemforroyalty.[C]Itcouldpredictweatherpatternsaccurately.[D]Itwasdiscoveredinalocalshipwreck.16.Whatwillthewomanprobablydonext?[A]Leavethemuseumimmediately.[B]Gototheplanetariumshow.[C]Buyaguidebookatthegiftshop.[D]Joinaguidedtourstartingin10minutes.Questions17-20arebasedonthefollowinginterviewwithaneuroscientist.17.WhatisthemainfocusofDr.Smith’srecentresearch?[A]Theimpactofsleeponmemoryconsolidation.[B]Theeffectofdigitaldevicesonhumanattentionspans.[C]Therelationshipbetweengutmicrobiotaandmood.[D]Theneuralpathwaysoflanguageacquisition.18.HowdoesDr.Smithdescribethebrain's"defaultmodenetwork"?[A]Itisactivewhenwearefocusedonaspecifictask.[B]Itisresponsibleforourfightorflightresponse.[C]Itoperateswhenthemindiswanderingorresting.[D]Itshutsdowncompletelyduringdeepsleep.19.WhatconcerndoesDr.Smithraiseaboutconstantsmartphoneuse?[A]Itcausespermanentstructuralbraindamage.[B]Itpreventsthebrainfromenteringtherestorativedefaultmode.[C]ItsignificantlydecreaseshumanIQscores.[D]Itleadstoseverevisualimpairment.20.WhatsuggestiondoesDr.Smithofferattheendoftheinterview?[A]Peopleshouldstopusingsmartphonesentirely.[B]Peopleshouldschedule"tech-free"hoursdaily.[C]Peopleshouldusesmartphonesonlyforwork.[D]Peopleshouldreplacesmartphoneswithcomputers.ThisistheendofPartCofListeningComprehension.SectionIIUseofEnglishDirections:Readthefollowingtext.ChoosethebestwordforeachnumberedblankandmarkA,B,CorDonANSWERSHEET1.Thegigeconomyhasradicallytransformedthemodernworkforce,offeringunprecedentedflexibilityandautonomytomillionsofworkers.However,thisshiftawayfromtraditionalemploymentmodelshas21acomplexwebofeconomicuncertainties.Whilegigworkersenjoythefreedomtochoosetheirhours,theyoften22basiclaborprotectionssuchasminimumwageguarantees,paidsickleave,andemployer-sponsoredhealthcare.ThecoreeconomicequationgoverningfreelancesustainabilitycanbesimplifiedasE(U)=∑u(),whereFurthermore,theclassificationofgigworkersasindependentcontractorsratherthanemployeeshassparked26legaldebatesworldwide.Proponentsofthecurrentmodelarguethatrigidlaborregulationswouldstifle27andincreaseconsumercosts.Conversely,laboradvocates28thatthecurrentsystemallowsplatformsto29thetruecostsoflaborontosociety,asunderpaidoruninsuredgigworkersmusteventually30onpublicassistanceprograms.Toaddressthesedisparities,somejurisdictionshavebegunexploringa"thirdcategory"ofworkerclassification.Thishybridmodelaimsto31somebenefitsoftraditionalemployment,suchasproratedvacationtime,whilemaintainingthe32natureofgigwork.Thesuccessofsuch33,however,remainsuncertain.Itrequiresadelicatebalancebetween34innovationandprotectingthelivelihoodsofarapidlygrowing35ofthepopulation.Ultimately,thegigeconomyisnotmerelyatemporarytrend;itisapermanentstructuralshiftthatrequiresafundamentalreevaluationofsocialsafetynetsinthe21stcentury.21.[A]woven[B]untangled[C]severed[D]knotted22.[A]lack[B]possess[C]demand[D]reject23.[A]certainty[B]probability[C]impossibility[D]stability24.[A]liberate[B]abandon[C]shield[D]expose25.[A]enhanced[B]increased[C]discounted[D]stabilized26.[A]fierce[B]trivial[C]harmonious[D]obsolete27.[A]stagnation[B]innovation[C]regulation[D]unemployment28.[A]deny[B]concede[C]contend[D]ignore29.[A]internalize[B]shift[C]attribute[D]distribute30.[A]rely[B]focus[C]turn[D]depend31.[A]mandate[B]provide[C]revoke[D]eliminate32.[A]rigid[B]flexible[C]permanent[D]bureaucratic33.[A]regulations[B]traditions[C]exceptions[D]initiatives34.[A]hindering[B]fostering[C]complicating[D]restricting35.[A]majority[B]minority[C]segment[D]handfulSectionIIIReadingComprehensionPartAReadthefollowingfourtexts.AnswerthequestionsbeloweachtextbychoosingA,B,CorD.MarkyouranswersonANSWERSHEET1.Text1Theadventofalgorithmicrecommendationsystemshasfundamentallyalteredhowindividualsconsumedigitalcontent.Thesesophisticatedalgorithms,designedtomaximizeuserengagement,curatepersonalizedfeedsbytrackingbehavioraldata—everyclick,view,andsecondofhesitation.Whilethishyper-personalizationoffersunparalleledconvenience,itengendersaphenomenonsociologiststermthe"algorithmicechochamber."Bycontinuouslyfeedinguserscontentthatalignswiththeirpreexistingbeliefsandpreferences,thesesystemsinadvertentlyinsulatethemfromdissentingviewpointsanddiverseperspectives.Themechanicsbehindthisarerootedintheoptimizationofattention.Aplatform'sprimaryobjectiveistoretaintheuseronthesiteforaslongaspossible,therebymaximizingadvertisingrevenue.Toachievethis,thealgorithmlearnsthatconfirmingauser’sbiasresultsinhighersatisfactionandlongersessiontimesthanpresentingchallengingorcontradictorymaterial.Consequently,usersaregraduallyenclosedinadigitalsilowheretheirworldviewsarecontinuouslyreinforced,creatingaskewedperceptionofreality.Politicalpolarizationisexacerbatedascitizensbecomeconvincedthattheirspecific,algorithmicallycuratednarrativeistheuniversaltruth.Theimplicationsfordemocraticdiscourseareprofound.Ahealthydemocracyreliesonasharedsetoffactsandamarketplaceofideaswherecompetingpropositionscanbedebatedopenly.Whensegmentsofthepopulationoperatewithinentirelydifferentinformationaluniverses,thecommongroundnecessaryforcompromisedissipates.Furthermore,theaffectivepolarization—whereindividualsnotonlydisagreewithopponentsbutactivelydislikethem—isfueledbytheoutrage-inducingcontentthatalgorithmsfavor,asangerisahighlyengagingemotion.Addressingthisissueiscomplex.Itpitstheeconomicimperativesoftechconglomeratesagainstthesocietalneedforaninformed,cohesivepublic.Regulatoryefforts,suchasmandatingalgorithmictransparencyorofferinguserstheabilitytoswitchtochronologicalfeeds,havebeenproposedbutfacestiffresistance.Ultimately,mitigatingtheechochambereffectmayrequireafundamentalreimaginingofthedigitalpublicsquare,prioritizingcivichealthoverrawengagementmetrics.36.Whatistheprimarymechanismof"algorithmicechochambers"accordingtothetext?[A]Theyforceuserstoclickonadvertisements.[B]Theyexposeuserstoopposingviewpointstoprovokedebate.[C]Theycuratecontentthatalignswithusers'preexistingbeliefstomaximizeengagement.[D]Theyrandomlyselectnewstoensureabalancedworldview.37.Whydoplatformsfavorcontentthatconfirmsuserbiases?[A]Itischeapertoproduce.[B]Itleadstolongersessiontimesandhigheradvertisingrevenue.[C]Itismandatedbygovernmentregulations.[D]Itreducestheriskofspreadingfakenews.38.Theword"dissipates"(Para.3)mostprobablymeans___.[A]strengthens[B]disappears[C]shifts[D]solidifies39.Whatisaconsequenceofalgorithmicechochambersondemocraticdiscourse?[A]Itstrengthensthesharedunderstandingoffacts.[B]Itmakescompromisemoredifficultduetodifferentinformationaluniverses.[C]Itencouragesopendebateoncompetingpropositions.[D]Itdecreasesaffectivepolarization.40.Whatdoestheauthorsuggestaboutsolvingtheechochamberproblem?[A]Itiseasilysolvedbyuserschangingtheirpasswords.[B]Itrequiresnointerventionasitwillself-correct.[C]Itinvolvesaconflictbetweentecheconomicsandsocietalhealth.[D]Itcanberesolvedbybanningalldigitaladvertising.Text2Carboncaptureandstorage(CCS)technologyhasemergedasacriticalcomponentintheglobalstrategytomitigateclimatechange.Unlikeemissionsreductionstrategiesthatfocusontransitioningtorenewableenergy,CCSaddressesthegreenhousegasesalreadyproducedbyheavyindustries.Theprocessinvolvesthreedistinctstages:capturingthecarbondioxideattheemissionsource,transportingitviapipelines,andinjectingitdeepundergroundintodepletedoilfieldsordeepsalineaquifersforpermanentstorage.Thefeasibilityofdirectaircapture(DAC),aspecificsubsetofCCS,reliesheavilyonthermodynamicprinciples.ThecorethermodynamicequationgoverningtheminimumenergyrequiredtoseparatecarbondioxidefromamixtureofgasesisgivenbyΔG=ΔH−TΔS.Inthisequation,ΔGisthechangeinGibbsfreeenergy,ΔDespitethesethermodynamicchallenges,proponentsarguethatDACisnecessary.Itaddresseshistoricalemissions—carbonthathasalreadyenteredtheatmosphere—andprovidesasolutionforindustrieswheredecarbonizationistechnologicallyimpossible,suchasaviationandcementmanufacturing.ThecurrentcostpertonofCextractedviaDACisprohibitivelyhigh,buteconomiesofscale,coupledwithadvancementsinsorbentmaterials,areprojectedtodrivecostsdownsignificantlyoverthenextdecade.Critics,however,warnofamoralhazard.TheyarguethatinvestingheavilyinCCSandDACprovidesfossilfuelcompanieswitha"licensetooperate,"potentiallydelayingthetransitiontowindandsolarenergy.IfCCSisseenasamagicbullet,theurgentneedtophaseoutfossilfuelsmightbedeprioritized.Therefore,expertsemphasizethatCCSshouldbeviewedasacomplementarystrategy,notareplacementforaggressiveemissionsreductions.Thefutureofthetechnologyhingesonrobustregulatoryframeworksthatensureitaccelerates,ratherthanhinders,thetransitiontoanet-zeroeconomy.41.WhatisthemaindifferencebetweenCCSandtraditionalemissionsreductionstrategies?[A]CCSfocusesontransitioningtorenewableenergy.[B]CCSaddressesgreenhousegasesalreadyproducedbyindustries.[C]CCSissolelyusedfortheaviationindustry.[D]CCSislessexpensivethansolarenergy.42.Accordingtothethermodynamicprinciplesdiscussed,whyisDirectAirCapture(DAC)soenergy-intensive?[A]BecausethetemperatureTintheequationistoolow.[B]BecausetheenthalpyΔH[C]BecausetheentropychangeΔSisenormousduetothedilutedconcentrationofC[D]BecausetheGibbsfreeenergyΔG43.WhatistheprimaryargumentofcriticsregardingDACtechnology?[A]Itisthermodynamicallyimpossible.[B]Itmightdelaythetransitiontorenewableenergybygivingfossilfuelcompaniesalicensetooperate.[C]Itistoocheapandwillputrenewableenergycompaniesoutofbusiness.[D]Itcannotcapturehistoricalemissions.44.Thephrase"moralhazard"inthecontextofthepassagereferstotheriskthat___.[A]DACwillcausesevereenvironmentaldamage.[B]companieswillusethetechnologytoevadetheresponsibilityofreducingemissionsatthesource.[C]governmentswillover-regulatethetechnology.[D]thetechnologywillfailduetolackoffunding.45.Whatistheauthor'soveralltoneregardingthefutureofCCS?[A]Uncheckedoptimism[B]Completedismissal[C]Cautiousconditionalsupport[D]BittercriticismText3Thehumanbrain'sneuroplasticity—theabilitytoreorganizeitselfbyformingnewneuralconnectionsthroughoutlife—wasoncebelievedtobestrictlyconfinedtochildhood.However,modernneurosciencehasestablishedthatthebrainremainshighlymalleableevenintooldage.Thisdiscoveryhasprofoundimplicationsforcognitiveagingandthepreventionofneurodegenerativediseases.Oneofthemostfascinatingmanifestationsofneuroplasticityisobservedinbilingualindividuals.StudiesutilizingfMRI(functionalmagneticresonanceimaging)haveshownthatmanagingtwodistinctlinguisticsystemsrequirescontinuousexecutivecontrol.Thisconstantcognitiveexercisestrengthensthedorsolateralprefrontalcortex,anareaassociatedwithattentionandworkingmemory.Asaresult,bilingualismactsasaformofcognitivereserve,buildingabufferagainsttheonsetofdementia.Onaverage,bilingualpatientsexhibitsymptomsofAlzheimer'sdiseasefourtofiveyearslaterthantheirmonolingualcounterparts,despitepossessingsimilarlevelsofphysicalbrainpathology.Themechanismbehindthisdelayliesintheconceptof"neuralcompensation."Whenthebrain'sprimarypathwaysdegradeduetoagingordisease,arobustcognitivereserveallowsthebraintorecruitalternativenetworkstoperformthesamefunction.Learningasecondlanguageforcesthebraintoadapttonovelphoneticandgrammaticalstructures,enhancingitsoverallstructuralandfunctionalintegrity.However,thecognitivebenefitsofbilingualismarenotuniversallyexperienced.Thecriticalfactoristhefrequencyandcontextoflanguageuse.Abilingualindividualwhorarelyengagestheirsecondlanguagemaynotreapthesameneurologicalrewardsasonewhoswitchesbetweenlanguagesdaily.Furthermore,theageofacquisitionplaysarole,thoughlatelearnerscanstillexperiencesignificantcognitivegains.Thekeytakeawayisthatcognitivehealthisnotastatictraitbutadynamicstatethatcanbeactivelycultivatedthroughlifelongmentalchallenges.Languagelearning,alongsideothercomplexcognitivetasks,representsapowerful,accessibletoolformaintainingbrainvitalityinanagingsociety.46.Whatwasthetraditionalbeliefaboutneuroplasticity?[A]Itlastedthroughoutaperson'sentirelife.[B]Itonlyoccurredduringchildhood.[C]Itwasstrongerinoldagethaninyouth.[D]Itwasstrictlylimitedtolanguageacquisition.47.Howdoesbilingualismdelaytheonsetofdementiasymptoms?[A]BypreventingthephysicalbrainpathologyassociatedwithAlzheimer's.[B]Bystrengtheningthedorsolateralprefrontalcortexthroughconstantexecutivecontrol.[C]Byreducingthelevelsofphysicalbrainpathology.[D]Byincreasingtheabsolutesizeofthebrain.48.Whatdoestheconceptof"neuralcompensation"(Para.3)referto?[A]Thebrain'sabilitytohealphysicalinjuries.[B]Thebrain'sabilitytoshutdownprimarypathwaystosaveenergy.[C]Thebrain'sabilitytousealternativenetworkswhenprimarypathwaysdegrade.[D]Theprocessofforgettingafirstlanguagetolearnasecond.49.Whatdetermineswhetheranindividualwillexperiencethecognitivebenefitsofbilingualism?[A]Thespecificsecondlanguagelearned.[B]Theindividual'sgeneticbackground.[C]Thefrequencyandcontextoflanguageuse.[D]Theindividual'soverallphysicalhealth.50.Whatisthemainpointofthefinalparagraph?[A]Bilingualismonlybenefitsthosewholearnlanguagesaschildren.[B]Cognitivehealthisstaticandcannotbechanged.[C]Engagingincomplexcognitivetaskslikelanguagelearninghelpsmaintainbrainvitality.[D]fMRIistheonlywaytomeasureneuroplasticity.Text4Theurbanheatisland(UHI)effect,whereinurbanareasexperiencesignificantlyhighertemperaturesthantheirruralsurroundings,isagrowingenvironmentalconcernexacerbatedbyglobalclimatechange.TheprimarydriversofUHIaretheextensivereplacementofnaturallandcoverwithimpervioussurfaces,suchasconcreteandasphalt,andtheconcentrationofanthropogenicheatgeneratedbyvehicles,industrialprocesses,andairconditioningunits.Thesematerialspossesshighthermaladmittance,absorbingsolarradiationduringthedayandreleasingitslowlyatnight,therebypreventingnocturnalcooling.MitigatingtheUHIeffectrequiresamultifacetedapproachtourbanplanning.Oneofthemosteffectivestrategiesistheexpansionofurbangreeninfrastructure,includingparks,streettrees,andgreenroofs.Vegetationmitigatesheatthroughtwodistinctmechanisms:shadingandevapotranspiration.Shadingdirectlyreducestheamountofsolarradiationreachingimpervioussurfaces.Evapotranspiration,theprocessbywhichplantsreleasewatervaporintotheatmosphere,consumesthermalenergy,therebycoolingthesurroundingair.Thecoolingeffectofasinglematuretreeisequivalenttoseveralroom-sizedairconditionersoperatingfortenhoursaday,highlightingthecost-effectivenessofnature-basedsolutions.Anothercriticalinterventioninvolvesthemodificationofurbanalbedo—thefractionofsolarradiationreflectedbyasurface.Traditionaldark-coloredurbansurfaceshavelowalbedo,absorbingthemajorityofincomingsolarradiation.Transitioningto"coolroofs"and"coolpavements,"whichutilizereflectivematerialsorlight-coloredcoatings,cansignificantlylowersurfacetemperatures.Whendeployedonacity-widescale,high-albedomaterialscanreduceambientairtemperaturesbyseveraldegrees,substantiallydecreasingthepeakenergydemandforcoolingbuildings.Despitetheclearbenefits,theimplementationofthesestrategiesfacessubstantialbarriers.Retrofittingexistinginfrastructurerequiressignificantcapitalinvestment,andthedisruptioncausedbyreplacingroadsandroofscanbepoliticallysensitive.Furthermore,thebenefitsofUHImitigationarenotalwaysdistributedequitably;lower-incomeneighborhoodsfrequentlypossesslessgreenspaceandmoreimpervioussurfaces,makingthemdisproportionatelyvulnerabletoheatwaves.Therefore,addressingtheurbanheatislandeffectisnotmerelyanengineeringchallenge,butanissueofenvironmentaljusticethatnecessitatesinclusivepolicy-makingandtargetedmunicipalinvestments.51.Whatistheprimarycauseoftheurbanheatislandeffectaccordingtothetext?[A]Thelackofrainfallinurbanareas.[B]Thereplacementofnaturallandcoverwithheat-absorbingsurfacesandanthropogenicheat.[C]Theexcessiveuseofairconditionersduringthenight.[D]Thegeographiclocationofmostmoderncities.52.Howdoesvegetationhelpcooltheurbanenvironment?[A]Byblockingallsunlightpermanently.[B]Throughshadingandevapotranspiration.[C]Byincreasingthethermaladmittanceofbuildings.[D]Byabsorbingmoisturefromtheair.53.Whatisthefunctionof"coolroofs"asdescribedinthetext?[A]Theyabsorbmoresolarradiationtoheatwater.[B]Theyincreasetheurbanalbedotoreflectmoresolarradiation.[C]Theyprovideshadeforpedestrians.[D]Theygenerateelectricityusingsolarpanels.54.WhyisaddressingtheUHIeffectconsideredanissueofenvironmentaljustice?[A]Becauseonlywealthyneighborhoodscanaffordthetechnology.[B]Becauselower-incomeneighborhoodsaremorevulnerableduetolessgreenspaceandmoreimpervioussurfaces.[C]Becauseurbanheatwavesdonotaffectwealthyindividuals.[D]Becausethegovernmentignoresallurbanplanningpolicies.55.WhatcanbeinferredabouttheimplementationofUHImitigationstrategies?[A]Theyarecheapandeasytoimplementeverywhere.[B]Theyrequirebalancingengineeringsolutionswithsocialequityandpolicy-making.[C]Theyareimpossibletoexecuteinexistingcities.[D]Theysolelydependonindividualcitizenspaintingtheirroofs.PartBInthefollowingtext,somesentenceshavebeenremoved.ForQuestions56-60,choosethemostsuitableonefromthelistA-Gtofitintoeachofthenumberedblanks.Therearetwoextrachoices,whichyoudonotneedtouse.MarkyouranswersonANSWERSHEET1.Theconceptofdeepwork,coinedbycomputerscienceprofessorCalNewport,referstotheabilitytofocuswithoutdistractiononacognitivelydemandingtask.Itisaskillthatallowsindividualstoquicklymastercomplicatedinformationandproducebetterresultsinlesstime.56._______.Theshifttowardsconstantconnectivityhasrendereddeepworkincreasinglyrare,yetsimultaneouslymorevaluableinoureconomy.Theprimaryenemyofdeepworkisthecultureofcontinuouspartialattention.Modernknowledgeworkersareconstantlybombardedbyemails,instantmessages,andthetemptationtochecksocialmediafeeds.57._______.Everytimeanotificationinterruptsatrainofthought,thecognitivecapacityismomentarilyderailed,andittakesanaverageoftwenty-threeminutestoreturntotheoriginaltaskwiththesameleveloffocus.Furthermore,themodernworkplaceoftenequatesbusynesswithproductivity.58._______.Ifaworkerisvisiblyrespondingtoemailsimmediatelyandattendingback-to-backmeetings,theyareperceivedashighlyeffective,regardlessoftheiractualoutput.Thissuperficialmetricofproductivitycreatesanenvironmentwhereshallowwork—logistical,non-cognitivelydemandingtasks—isprioritizedoverthedeepworkthatactuallydrivesinnovation.Tocultivateadeepworkhabit,individualsmustbeproactiveandintentional.59._______.Thismightinvolvedesignatingspecifichoursofthedayfordeepfocus,silencingalldigitalnotifications,orevenutilizingaseparatephysicalspacesolelyforconcentratedtasks.Thegoalistotrainthebraintotolerateboredomandresistthecompulsiveurgefordigitalstimulation.Ultimately,theabilitytoperformdeepworkisbecominganincreasinglyrareandhighlysought-afterskill.60._______.Thosewhocanmasterthisfocuswillthrive,whilethosewhoremaintetheredtothecycleofdistractionwillfindthemselvesoutpacedbyboththeirpeersandtheverytechnologytheyarefailingtocontrol.A.Thiscreatesaparadox:workersfeelbusybutachievelittlesubstantialprogress.B.However,thistypeofworkrequiresalevelofconcentrationthatisdifficulttomaintain.C.Therefore,schoolsshouldreducetheamountofhomeworkassignedtostudents.D.Thisenvironmentfracturesattentionintoshards,makingsustainedconcentrationnearlyimpossible.E.Thosewhocultivatethisabilitywillpossessasignificantcompetitiveadvantageinthecomingdecades.F.Peoplewhoprefershallowworkusuallyhavebettersocialskillsthanthosewhododeepwork.G.Itrequiresschedulingfocusblocksintothecalendarandstrictlyadheringtothem.SectionIVTranslationDirections:ReadthefollowingtextcarefullyandthentranslateitintoChinese.WriteyourtranslationonANSWERSHEET2.Theintegrationofbiotechnologyintomodernagriculturehassparkedaprofoundethicalandscientificdebate.Ononehand,geneticallymodified(GM)cropsofferunprecedentedadvantages:theycanbeengineeredtoresistpests,tolerateharshenvironmentalconditions,andsignificantlyincreaseyield.(61)Thispotentialtoenhancefoodsecurityisparticularlyvitalfordevelopingnationsfacingrapidpopulationgrowthandtheadverseeffectsofclimatechange,wheretraditionalagricultureisincreasinglyfailing.However,thewidespreadadoptionofGMtechnologyisnotwithoutitscritics.(62)Opponentsarguethatreleasinggeneticallyalteredorganismsintotheecosystemcarriesunpredictablerisks,potentiallydisruptinglocalbiodiversityandcreatingsuperweedsthatareresistanttoconventionalherbicides.Furthermore,thereisaprofoundeconomicconcernregardingthemonopolizationoftheglobalfoodsupply.(63)Whenahandfulofmultinationalcorporationscontrolthepatentsforgeneticallymodifiedseeds,small-scalefarmersbecomedangerouslydependentontheseentities,forcedtopurchasenewseedsannuallyratherthansavingthemfrompreviousharvests.(64)Navigatingthiscomplexlandscaperequiresaregulatoryframeworkthatisbothscientificallyrigorousandsociallyresponsible,ensuringthatinnovationservespublicgoodwithoutcompromisingecologicalintegrity.Ultimately,thefutureoffoodproductionwillnotbedictatedsolelybylaboratoryadvancements.(65)Itmustbeacollaborativeeffortinvolvingscientists,policymakers,andlocalcommunitiestoforgeanagriculturalparadigmthatisequitable,sustainable,andsafe.SectionVWritingDirections:Youhavereadanarticleinalocalnewspaperdiscussingtherapidexpansionofsharedbicyclesinyourcity,whichhasbroughtbothconvenienceandchaoticparkingissues.Youdecidetowritealettertotheeditorofthenewspapertoexpressyourviewsandoffersomepracticalsolutions.Writeyourletterinnolessthan120wordsonANSWERSHEET2.Donotsignyournameattheendoftheletter.Use"LiMing"instead.Donotwritetheaddress.全国英语等级考试（PETS）四级全真模拟试题参考答案及解析SectionIListeningComprehensionPartA1.422.algorithms3.1504.rural5.8P