江西省丰城市第九中学2025届高三最后一模英语试题含解析

江西省丰城市第九中学2025届高三最后一模英语试题注意事项：1．答题前，考生先将自己的姓名、准考证号填写清楚，将条形码准确粘贴在考生信息条形码粘贴区。2．选择题必须使用2B铅笔填涂；非选择题必须使用0．5毫米黑色字迹的签字笔书写，字体工整、笔迹清楚。3．请按照题号顺序在各题目的答题区域内作答，超出答题区域书写的答案无效；在草稿纸、试题卷上答题无效。4．保持卡面清洁，不要折叠，不要弄破、弄皱，不准使用涂改液、修正带、刮纸刀。第一部分（共20小题，每小题1.5分，满分30分）1．---Whydidn’tyouhelpthelittleboy?---Oh,hehadstruggledtohisfeet______Icouldrunoverandofferedanyhelp.A．before B．afterC．when D．since2．—DoyouthinkI'magoodsurfer?—Ofcourse!I________youearlier．Youmadeitlooksoeasy，gracefuleven．A．amwatching B．waswatchingC．havewatched D．hadwatched3．Inmanycountriesintheworld,breakfastisasnack______ameal,butthetraditionalEnglishbreakfastisafullmeal.A．lessthan B．morethanC．otherthan D．ratherthan4．ClassTwo,ourclassbecametheBasketballChampionofourschool.A．Beating B．tobeat C．Beatenby D．Havingbeaten5．Istillfindithardtoimaginethatsuchacleverchild__________makesuchafoolishmistake.A．shall B．mustC．can D．should6．__________62%ofallluxuryconsumersalesinEuropein2015,shoppersfromtheChinesemainlandspent$7.2billionoverseasduringtheSpringFestival.A．Accountingfor B．AddingtoC．Consistingof D．Makingup7．Experienceisahardteacherbecauseshe________thetestfirst,thelessonafterwards.A．givesB．hasgivenC．wasgivingD．wouldgive8．Thechurchwhichiseasily________frommyhomeisbeingrebuilt.A．accessibleB．availableC．acceptableD．responsible9．Thenewsupermarketannouncedthatthefirsttopurchasegoodsontheopeningday______________getabigprize.A．must B．willC．shall D．need10．Withthehelpofhightechnologyinthepastfewyears,electronicbusiness_______tobankindustryandtravelindustry..A．appliedB．haveappliedC．hasbeenappliedD．hadbeenapplied11．Wehavetimeandagain____ourpositiononTaiwanissue!Whateverhappens,wewon’tchangeit!A．explained B．clarified C．introduced D．concluded12．Difficultiesstrengthenthemind,_____labourdoesthebody.A．if B．asC．for D．so13．Believeitornot,itis________________thatcausesyourillness.A．becauseofyourbeingoverweight B．becauseyouareoverweightC．youaresooverweight D．yourbeingoverweight14．—Startingaconversationisagoodwaytokilltimeonthetrain.—_______.Ialsoliketotalkwithstrangers.A．Thatistrue B．ItsoundslikefunC．Idon’tthinkso D．Youarekidding15．Tomissocreativeapersonthathealwayshaslotsof_________ideasinhismind,andsometimeswedon’tevenknowwhatheisthinkingabout.A．meanB．novelC．slimD．instant16．Thisrestauranthasbecomepopularforitswide______offoodsthatsuitalltastesandpockets.A．production B．offerC．range D．division17．Johnlives________.Hehasaverysmallbudgetandlittlemoneytospendonclothes.A．intheblackB．onashoestringC．overthemoonD．atthedropofahat18．---IsitconvenienttoyouifIcallyouupat9o’clocktomorrowmorning?---I’mafraidnot.I______ameetingthen.A．willhaveattended B．wasattendingC．willbeattending D．amattending19．Asadoctor,Ispendmostofthetimewithmypatients,andthat’s________itisinmyday.A．howB．whenC．whyD．where20．Idon’tlikefish,soIeatitunlessIwasextremelyhungry.A．needn’t B．shouldn’t C．can’t D．wounldn’t第二部分阅读理解（满分40分）阅读下列短文，从每题所给的A、B、C、D四个选项中，选出最佳选项。21．（6分）IwillneverforgetthedayswhenImetwithmyclassmates.Earlyinthemorningofourfirstschoolday,ourprofessorintroducedhimselfandchallengedustogettoknowsomeonewedidn’tknowyet.Istooduplookaroundwhenagentlehandtouchedmyshoulder.Iturnedroundtofindawrinkled,littleoldladybeamingupatmewithasmilethatlitupherentirebeing.Shesaid,“Hihandsome.MynameisRose.CanIgiveyouahug?”Ilaughedandenthusiasticallyresponded,“Ofcourseyoumay!”andshegavemeagiantsqueeze.“Whyareyouincollegeatsuchayoung,innocentage?”Iasked.Shejokinglyreplied,“I’mheretomeetarichhusband,getmarried,andhaveacoupleofkids…”“Noseriously,”Iasked.Iwascuriouswhatmayhavemotivatedhertobetakingonthischallengeatherage.“IalwaysdreamedofhavingacollegeeducationandnowI’mgettingone!”shetoldme.Afterclasswesharedachocolatemilkshake.Webecameinstantfriends.Everydaywewouldleaveclasstogetherandtalknonstop.Iwasalwaysmesmerized（迷住）listeningtothis“timemachine”asshesharedherwisdomandexperiencewithme.AttheendofthesemesterweinvitedRosetospeakatourfootballbanquet.I’llneverforgetwhatshetaughtus.“Thereisonlyonesecrettostayingyoung.You’vegottohaveadream.Whenyouloseyourdreams,youdie.Wehavesomanypeoplewalkingroundwhoaredeadanddon’tevenknowit!Thereisahugedifferencebetweengrowingolderandgrowingup.IfIameighty-sevenyearsoldandstayinbedforayearandneverdoanythingIwillturneighty-eight.Anybodycangrowolder.Thatdoesn’ttakeanytalentofability.Theideaistogrowupbyalwaysfindingopportunityinchange.Havenoregrets.Theelderlyusuallydon’thaveregretsforwhatwedid,butratherforthingswedidnotdo.Theonlypeoplewhofeardeatharethosewithregrets.”SheconcludedherspeechbycourageouslysingingTheRose.Shechallengedeachofustostudythelyricsandlivethemoutinourdailylives.1、Whydidtheladywanttohugtheauthor?A．Becauseshewantedtochallengeherprofessor.B．Becauseshewantedtobreaktheice.C．Becauseshewantedtofindarichhusband.D．Becauseshewantedtohaveacollegeeducation.2、Whichofthefollowingstatementsagreeswiththetextbest?A．Theauthorenjoyedhisexperienceofridinginthe“timemachine”.B．Theauthorandtheladysoonbecameclosefriends.C．Talentedpeoplecaneasilyfindopportunities.D．Oldpeopleusuallydon’tfeardeath.3、ItcanbeinferredthatRoseis________.A．alivelycollegestudentB．theauthor’sgirlfriendC．ayoungandinnocentladyD．anencouragingsong4、Whatisthelifelessontheauthorlearnedfromhisexperience?A．Anidleyouth,aneedyage.B．Learnwhereveryouare.C．Afaithfulfriendishardtofind.D．Amanisnotolduntilregretstotaketheplaceofdreams.22．（8分）Google,oneoftheworld’soutstandingtechcompanies,wasattacked.Itwasn’titssearchenginethatwasattackedoritsadvertisingplatformorevenitssocialnetwork.Google+.Instead,itwasabuilding.Twowebsecurityexpertshacked(侵入)intoitsWharf7officeinSydney,Australia,throughGoogle’sbuildingmanagementsystem(BMS).Oneofthem,BillyRios,says,“MycolleagueandIhavelotofexperienceinwebsecurity,butitisnotsomethingthatpeoplecouldn’tlearn.Onceyouunderstandhowthesystemworks,itisverysimple.”TheyfoundthesystemonShodan,asearchenginethatlistsdevicesconnectedtotheInternet,andthenranitthroughtheirownsoftwaretoidentifywhoownedthebuilding.InthecaseoftheGooglehacking,theresearchershadnoimmoralpurposeandjustinformedGoogleaboutwhattheyfound.AccordingtoMrRios,whorunssecuritycompanyWhitescope,thereare50,000buildingscurrentlyconnectedtotheInternet,includingresearchinstitutes,churchesandhospitals,and2,000ofthoseareonlinewithpasswordprotection,MartynThomas,aprofessorofITatGreshamCollegeintheUK,says,“Itisbeyonddoubtthatattemptstoattackbuildingmanagementsystemsarehappeningallthetime.”Makingabuildingsmartgenerallymeansconnectingthesystemsthatcontrolheating,lightingandsecuritytotheInternetandthewidercorporatenetwork.Therewasastrongreasonfordoingthis,saidAndrewKelly,principalsecurityconsultantatdefencecompanyQinetiq.“Energysavingsarethebiggestfactorinconnectingbuildingmanagementsystemstothecorporatenetwork,”hesays.“Itgivesthosewhorunthebuildingbettercontrolandoffersbetween20%to50%inenergysavings,”headds.Butitalsomakesthemlesssecure.AndifanyofthesefeelslikeaHollywoodfilm,thinkagain.1、HowdidBillyRiosandhiscolleaguehackGoogle’sbuilding?A．TheyinventedasearchengineandconnectedittoGoogle’sbuilding.B．TheyworkedforGoogleandmasteredhowthebuildingworked.C．TheyusedGoogle’sBMStofindouttheownerofthebuilding,D．TheyconnectedtheirownsoftwaretothebuildingtorunGoogle.2、InthecaseoftheGooglehacking,theresearchershadtheintentionof________.A．analyzingsomeimmoralproblemsB．explainingthereasonsforenergysavingsC．enteringGoogle’sbuildingtosavemoreenergyD．tellingGoogleabouttheWharf7office’shiddendanger3、What’sthemainideaofParagraph4?A．Thebuildingmanagementsystemsofsomebuildingsareindanger.B．Therearemanyresearcherscontributingalottowebsecurity.C．Theattackonbuildingmanagementsystemshappensallovertheworld.D．TherearetoomanybuildingsconnectedtotheInternettobemanagedwell.4、Whatistheauthor’sattitudetowardsthewayoftheenergysavingsofsomebuildings?A．Ambiguous.B．Negative.C．Indifferent.D．Favorable.23．（8分）Googleannouncednewfeaturestomakedevicessmarterandmoreusefultoopenitsyearlydevelopers'conference.TheannouncementscameatGoogle'sI/O2018conferenceinMountainView,California.GoogleDuplex"Sowhatyou'regoingtohearistheGoogleAssistantactuallycallingarealbarber’stoscheduletheappointmentforyou.Hello,howcanIhelpyou?Hi,I'mcallingtobookawoman'shaircutforaclient.I'mlookingforsomethingonMay3rd.Sure,givemeonesecond.Mm-hmmm.Thatwasarealcallyoujustheard."GoogleChiefPichaisaidthedemonstrationwastheresultofthecompany'sresearchanddevelopmentovermanyyearsintheareasofnaturallanguage,deeplearningandtext-to-speech.GooglecallsthetechnologyDuplex.Theideaistocreatemachinesthatsoundandactmorehuman-likeininteractionswithpeople.ContinuedConversationAnothernewfeaturerelatedtoAssistantiscalledContinuedConversation.Untilnow,usershavehadtosay"HeyGoogle"eachtimetheyaskedaquestionorwantedhelp.Butnow,ausercanissuemorethanonecommand–suchasafollow-upquestion–foruptoeightseconds,andAssistantwillanswer.GmailSmartComposeThelatestnewtoolforGmailisanauto-completefeaturecalledSmartCompose.ItusesAItosuggestwaystofinishsentencesastheyarewritten.Forexample,"Ihaven'tseenyou"mightbeauto-completedto"Ihaven'tseenyouinawhileandIhopeyou'redoingwell."DigitalWellbeingGooglesaysitrecognizesmanyusersaretryingtofindtherightbalanceinlifewithtechnology.Sometimestheywouldliketobreakawayfromtheirdevicestobeabletospendtime"onbetterthings."Newfeatureswiththisinmindcanhelpuserspreventoveruseoftechnology.ADashboardwillprovideusersdetailedinformationabouthowmuchtimetheyarespendingonwhichpartsoftheirdevice.Whenthedeviceisplacedfacedown,anewfeaturewillputthedeviceonholdandsilenceitsotheusercancenteronotherthings.AWindDownModefeaturecanletusersenterthetimetheywanttogotobed.Atthattime,thedevicewillagaingosilentandthefrontofthedevicewilldimtohelpusersdisconnectbeforebed.1、WhatdoesthesmalldialoguemeaninGoogleDuplex?A．GoogleChiefPichaicallshisassistanttoarrangeanappointmentforhim.B．Google’sdigitalassistantsetsahaircutappointmentforsomeoneallbyitself.C．AnassistantinGooglesetsahaircutappointmentforawoman.D．Thatwasn’tarealcallthereceiverhadheard.2、WhatcanwelearnaboutDigitalWellbeing?A．Itcanfindtherightbalanceinwork.B．Itmayautomaticallygosilentwhilethescreenisstillbright.C．Itcantellhowmuchtimeisbeingspentonpartsofthedevice.D．Whenonefeatureisoperatinglongenough,anewonewilldisappear.3、Ifyouarepoorinwritingcompositions,youprobablylike________.A．ContinuedConversationB．GoogleMaps-AugmentedRealityC．GoogleDuplexD．GmailSmartCompose24．（8分）Digitalgrounding（限制）iswhenparentsorcaregiverslimitorcompletelytakeawayaccesstotechnologyfromchildren.AccordingtoastudyconductedbyPewResearch,65%ofparentshavedigitallygroundedtheirteenbytakingawaytheirteen’scellphoneorInternetaccessaspunishment.Becausechildrenaresoconnectedwiththeirtechnologies,digitalgroundingmayseemlikealogicalstepforparents.Takeawayachild’smostcherisheditemandtheywillquicklylearnfromtheirbehavior.Buttheideaofdigitalgroundingisn’tasclear-cutasthat.Instead,itmaybealose-losesituationforparentsandkids,alike.Formostparents,thegoalofgroundingisn’ttomaketheirchildrenunhappyorsad.Itistoteachalessoninthehopethattheywon’tengageinwhateverbehaviorgotthemintroubleinthefirstplace.Unfortunately,though,digitalgroundingisoftenjustpunishment,notdiscipline.Ifachildstaysoutpastcurfew(约定的最晚回家时间),apunishmentwouldbehittingoryellingatthem.Disciplinewouldbenotlettingthemgooutthenextweekendbecausetheyfailedtofollowrules.We’veallbeenthere—we’vecaughtourchilddoingsomethingwrongandintheheatofthemomentlaidoutastrictpunishment.Wemayhavebeenfeelinghot-headed,embarrassed,orupset.Often,though,thesepunishmentsdon’talign（结盟）withthebadbehavior.Whiledigitalgroundingmaysolvetheproblemtemporarily,itwon’tprovidechildrenwiththeguidancetheyneedtoactappropriatelyinthefuture.Insteadofgrounding,showyourchildwhattheydidwrongandgivethemthechancetoactdifferently.Thisway,theywilllearnfromtheirmistakesinapracticalmannerandfigureoutwaystobesafeandsmartwithtechnology.There’snodenyingit:technologyishereforthelong-haul.Thisiswhysomeparentingexpertsdon’trecommenddigitallygroundingyourchildren.Itdoesn’tfocusontheendgoalofsafebehavior.Theyrecommendteachingthemgoodhabitsassoonaspossible,ratherthantakingawaytheirtechnology.Bydigitallygroundingthem,youareputtingabandageoverthewound,ratherthantreatingit.Now,whenwesaythatdigitalgroundingisalose-losesituation,we’renotsayingthatdiscipliningyourchildreningeneralisalose-losesituation.Disciplineisagreatwaytoteachchildrenlessons,whenusedappropriately.1、Whichofthefollowingisaproperformofdisciplineaccordingtotheauthor?A．Hittingoryellingatchildren.B．Layingoutastrictpunishmentintheheatofthemoment.C．Takingawayaccesstocellphonesfromchildrencompletely.D．Forbiddingkidstogooutthenextweekendiftheystayoutpastcurfew.2、Whatdoestheauthorthinkofdigitalgrounding?A．Itbenefitschildrenagreatdeal.B．Itisnobetterthandisciplining.C．Parentscanuseittocorrectkids’behavior.D．Neitherparentsnorchildrengainbenefitsfromit.3、Whatdoestheauthorsuggestparentsdoinsteadofgrounding?A．Givekidsmorefreetime. B．Helpkidsformgoodhabits.C．Actappropriatelyinpublic. D．Putabandageoverthewound.4、What’sthepurposeofthetext?A．Toinformusofwaysofpunishingkids.B．Toexplainwhatdigitalgroundingmeans.C．Toshowhowtoparentchildrenindigitaltimes.D．Toprovedigitalgroundingisnotagoodparentingway.25．（10分）There’snodoubtthatwaterisvitaltoanylife.About3percentoftheaverageadulthumanbodyismadeofwater.Thisincludesmostofyourbrain,heart,lungs,musclesandskin,andevenabout30percentofyourbones.Yetthere’slittlescientificagreementabouttheexactamountofthestuffanindividualshouldconsumeeachday.Sohowmuchwaterdoyouactuallyneedtodrinktobehealthy?Youmayhaveheardthatyoushoulddrinkeight8-ounceglassesofwateraday.Yet,thedownsideofthisrule,researcherssay,isthatdrinkingwaterbytheglassisnottheonlywaythathumanstakeinit.The“8X8”ruleessentiallyoverlookstwobigsourcesofdailywaterconsumption.Onesuchsourceisfood.Everythingyoueatcontainssomewater.Watermelons,forexample,aremorethan90percentwaterbyweight.Differentdietsnaturallycontaindifferentamountsofwaters,andthecounts.Theotherkeywatersourcesareotherbeverages.Non-alcoholicdrinkssuchascoffee,andtea,containmostlywaterandallcontributetoyourhydration（水量）.So,betweenallthefood,waterandotherfluidsyouconsumeinaday,howmuchwatershouldyouaimtotakein?TheNationalAcademicsofSciencessuggeststhatwomanconsumeatotalofapproximately2.7liters(91ounces)ofwarmfromallbeveragesandfoodseachdayandmen3.7liters(125ounces).Butthesearejustgeneralguidelines.Thetruthis,thereisnomagicstandardforhydration—everyone’sneedvarydependingontheirage,weight,levelofphysicalactivity,generalhealthandeventheclimatetheylivein.Themorewateryoulose,themorewateryou’llneedtoreplacewithfoodanddrink.Ifyouarelookingforconcreteadvice,though,thebestplacetolookiswithin.Drinkupwhenyou’rethirsty.1、HowdoestheauthorsupporttheunderlinedsentenceinPara1?A．Byprovidingfacts.B．Byaskingaquestion.C．Bymakingacomparison.D．Byputtingforwardsuggestions.2、Accordingtothe“8X8”rule,howmuchwatershouldwetakeinaday?A．8ouncesB．64ouncesC．91ouncesD．125ounces3、What’sthedisadvantageofthe“8X8”rule?A．Thewaterfrombothfoodandotherbeveragesisignored.B．Itincludestheamountofwaterfrombothfoodandbeverages.C．Itdoesnottakewaterfromdrinksintoaccount.D．Itoverlooksthefactthatwetakein90%ofthewaterfromfruits.4、Whatcanweinferfromthefinalsuggestion?A．Amandoingtiringphysicalworkdrunkslessthan3.7litersaweek.B．Apersoningoodhealthdrinkswheneverhefeelsthirsty.C．Anoverweightmaleinahotsummerdrinks125ounceseverytwodays.D．Afemaleeatingalotofwatermelonsdrinksmorethan91ouncesdaily.第三部分语言知识运用（共两节）第一节（每小题1.5分，满分30分）阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项．26．（30分）Atrueapologyismorethanjustanadmissionofamistake.Itisthe1thatsomethingyouhavesaidordonehasdamagedarelationship—andthatyoucareenoughabouttherelationshiptowantit2.It’snevereasytoadmityouareinthe3.Beinghuman,weall4toknowtheartofapologizing.Lookbackwith5andthinkhowoftenyou’vejudgedcruelly,saidunkindthings,orpushedyourselfaheadatthe6ofafriend.Thencountthemomentswhenyoushowedclearlyandtrulythatyouwere7.Abitfrightening,isn’tit?Frighteningbecausesomedeepwisdominusknowsthatwhen8asmallwronghasbeendone,somemysteriousmoralfeelingis9;anditstaysoutofbalanceuntilthefaultisadmittedandregret10.Irememberadoctorfriend,ClarenceLieb,11meaboutamanwhocametohimwithavarietyof12:headaches,restlessnessandstomachsickness.No13causecouldbefound.FinallyDr.Liebsaidtotheman,“Unlessyoutellmewhat’s14you,Ican’thelpyou.”Afterhe15forsometime,themanadmittedthat,asexecutor(遗嘱执行人)ofhisfather’swill,hehadbeen16hisbrother,wholivedoverseas,ofwhattheirfatherhadlefthim.Thenandtherethewiseolddoctormadehimwritetohisbrotheraskingfor17andenclosing(附入)achequeasthefirst18inrepayment.Hethenwentwithhimtothemailboxinthepassage.Asthe19disappeared,themanburstintotears.“Thankyou,”hesaid.“IthinkI’m20.”Andhewas.1、A．assessment B．belief C．criterion D．recognition2、A．restored B．formed C．reserved D．abandoned3、A．distance B．way C．dark D．wrong4、A．remember B．demand C．need D．learn5、A．delight B．honesty C．sorrow D．relief6、A．mercy B．invitation C．sight D．expense7、A．careless B．foolish C．sorry D．thankful8、A．still B．rather C．hardly D．even9、A．controlled B．disturbed C．ignored D．protected10、A．exposed B．evaluated C．expressed D．exchanged11、A．questioning B．consulting C．telling D．reminding12、A．troubles B．feelings C．thoughts D．questions13、A．spiritual B．physical C．likely D．common14、A．worrying B．inspiring C．disappointing D．embarrassing15、A．wandered B．hesitated C．observed D．prayed16、A．warning B．cheating C．suspecting D．accusing17、A．apology B．blame C．excuse D．forgiveness18、A．step B．trend C．success D．rise19、A．box B．passage C．letter D．cheque20、A．cured B．released C．involved D．refreshed第二节（每小题1.5分，满分15分）阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。27．（15分）Onceagroupof50peoplewasattendingaseminar.Halfway1．histalk,thespeakerstoppedanddecidedtocreateagroup2．(act).Hewentaroundthehallandgaveeachpersonaballoon.Eachonewasaskedtowritehisorhernameontheballoon3．(use)amarkerpen.Thenalltheballoons4．(collect)andputinanotherroom.Thespeakerthenledthegrouptotheroomfullofballoonsandaskedthemtofindtheballoonsthathadtheirnames5．(write)onwithinfiveminutes.Everyonewas6．(hurry)searchingfortheirname,bumpingintoeachother,pushingeachotheraround.Itwasinchaos.Attheendofthefiveminutesnoonecouldfindtheirownballoon.Theneachpersonwasaskedtorandomlycollect7．balloonandgiveittothepersonwhosenamewasonit.Withintwominuteseveryonehadtheirownballoon.Wheneveryonequieteddown,thespeakerbegantotalk,sayingthatwasexactly8．washappeningintheirlives.Wemayliketothinkof9．(we)moreimportantthanothers,butourhappinesssometimesliesinthehappinessofotherpeople.Givethemtheirhappiness10．youwillgetyourownhappiness.第四部分写作（共两节）第一节短文改错（满分10分）28．（10分）假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。删除：把多余的词用斜线（\）划掉。修改：在错的词下划一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词2.只允许修改10处，多者（从第11处起）不计分。Lastweekend,ourclasswenthiking.Earlyinthemorning,wegatheredatPeople’sSquareinthecitycenterandthenheadfortheSouthMountain,whichwas8kilometersaway.Ourgoalwastoclimbingtothetop,fromwhichwecouldenjoyagoodview.Itwasanexhaustedhikeandtheheatsconsumedallourenergy.Therefore,whenwefinallyreachedtoourdestination,theviewtookourbreathaway.Itwaswellworthwalkingsuchlongdistance.BecauseInotonlygotrelaxedbyenjo