2025届黑龙江省哈尔滨市第三十二中学高三下学期第六次检测英语试卷含解析

2025届黑龙江省哈尔滨市第三十二中学高三下学期第六次检测英语试卷注意事项：1．答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。2．回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑，如需改动，用橡皮擦干净后，再选涂其它答案标号。回答非选择题时，将答案写在答题卡上，写在本试卷上无效。3．考试结束后，将本试卷和答题卡一并交回。第一部分（共20小题，每小题1.5分，满分30分）1．Mr.Zhanggavealltextbookstoallthepupils,except____________whohadalreadytakenthem.A．theseB．onesC．thoseD．theothers2．---Didyouvisitthefamousculturalrelicslastmonth?---No,we____it,butwespenttoomuchtimeshopping．A．couldhavevisited B．musthavevisitedC．can'thavevisited D．shouldn'thavevisited3．—Amazingly,I’vemanagedtostartmyownshoponline!—________Itoldyouitwaseasy.A．Thereyouare! B．Believeitornot.C．Howcome? D．Yougotmethere!4．Peterishelpingsettablesinthehall,whereJohn’sbirthdayparty________.A．isholdingB．hasheldC．isheldD．willbeheld5．—Whatdoyouthinkofthemovielastnight?—WhenIgotthereit_______,soIonlywatchedtheend.A．finished B．hadfinishedC．wasfinishing D．hasfinished6．NotuntilIwentupfurther________thatunderthetree________,obviouslysoundasleep.A．thatIsaw;didaboylie B．Isaw;layaboyC．didIsee;didaboylie D．didIsee;layaboy7．AfternineyearsworkingtoprotectSiberiantigers,YangJun_____hiseffortsrecognizedattheannualawardceremonyinBeijingwherehewasnameda"wildlifeprotector".A．had B．hadhadC．hashad D．has8．---MayIspeaktoMr.Smith？---Iamafraidnot.Heisatameetingnow.It'snot_____________A．reliable B．convenientC．beneficial D．available9．—Daddy,wouldyoupleasebuymeaniPhoneX?—Ifyoucanpassthismidtermexamination,you__________haveoneasareward.A．must B．needC．would D．shall10．Itisbeyondawkwardwheneveryonearoundyou______________laughingatajokethatyoudonotfindfunny,especiallyifit’sajoketoldinaforeignlanguage.A．runinto B．burstsoutC．yellsout D．fallsinto11．Pandasare_____tothemountainsofcentralChinaandonlyabout1,000remaininthewild.A.native B．sensitive C．relate D．familiar12．IamabetterreaderthisyearthanIwaslastyearbecauseI________tohundredsofnewconceptsandideas.A．haveexposedB．hadbeenexposedC．havebeenexposedD．wasexposed13．Don’tworry.Thehardworkthatyoudonow_____laterinlife.A．willberepaid B．wasbeingrepaidC．hasbeenrepaid D．wasrepaid14．—Accordingtomymother,itisagoodideatohavesomechickensoupwhenyouhaveacold．—_____,scientistsagreewithher．A．SoonerorlaterB．OnceinawhileC．BelieveitornotD．Tobeexact15．Althoughthesituationwastoughduringtheeconomiccrisisnowthingsarebeginningto________.A．lookup B．keepup C．setup D．buildup16．I______footballsinceIleftuniversity.A．didn’tplay B．don’tplayC．won’tplay D．haven’tplayed17．Thechildrenwrotemagicalstoriestogether,_____imaginaryworldsofromanticandmilitaryadventure.A．tospin B．spinningC．havingspun D．tohavespun18．﹣Itreallyannoysmewhenaperson'scellphonegoesoffduringamovie？﹣Yeah，metoo．Itreally_________．A．costsmeanarmandaleg B．getsonmynervesC．beatsmybrainsout D．pullsmylegs19．_____everyyear,manypeopledonotholdahighopinionoftheCCTVSpringFestivalGala,ithasbecomeasomewhatnecessarypartofthefestival.A．AsB．ThereforeC．While D．Since20．Differenttastesamongtouristsfromoutsidethemainland________thelistofthecountry'sattractions．A．top B．shape C．lead D．show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）Exposedsoilisn’tpartofnature’smasterplan.Goodexampleswheresoilisnaturallyfoundwithnoplantsgrowinginarebeneathfreshlyremovedtrees,orwherethegroundhasbeenburntbyalandfire.Inthesesituationsbaresoilisn’tbareforlong;withindaysseedlings(芽)begintoappearandcovertheground.Inafewmonths’time,thescarishardlynoticeable.Unlikethesenaturalexamples,ploughed(耕犁)fieldsandfreshlyduggardensareobviousexamplescreatedbyman.But,lefttonature,eventhesebaresoilssoonturngreenwithalargenumberoftinyseedlings.Infields,gardensandongrasslands,roadsideandsportsfields,alongstreetsandonpathsandpavements,weareconstantlybattlingtostopweedsfromgrowing.Allwearedoingisstoptherecoveringpowersofnature.Wheneversoilisexposed,weedsactlikeakindofmedicinetoreducethepotentiallyharmfulraysofthesun,sothesoonerplantgrowthcoversthesoiloveragain,thebetter.Weedsalsohelptoimprovethefertility(肥沃)ofthesoil.Theirrootsgetthesoiltogether,improvingitsstructureandcreatingamorestableenvironmentinwhichsoillifecangrowfast.Thoseweedswithadeeprootdrawupplantnutrientsfromdeeperintheground,makingthemavailabletoplantsgrowingnearthesoilsurface.Aboveground,thestems(茎)ofweedshelptrapfallenleaveswhichbreakdownintothesoil,addingtothefertilityofthesoil.Asthesoilbecomesmorefertile,differentkindsofplantsstarttoreplacethe“pioneering”weeds.Bushesmoveintotaketheplacebygraduallyshadingthemout,followedinturnbytrees,whicheventuallypushupthroughthebushes,finallyshadingthemouttoo.Fallenleavesfromthebushesandtreescarryonthejobofbuildingsoilfertilitythatwasbegunbythoseveryfirstweedsthatgrewonthebaresoil.Then,whenoneofthesematuretreesisremovedinastorm,leavingawoundofbaresoilintheearth,thewholeprocessstartsagain.1、Whenwillsoilbeleftbare?A．Alandfirehasjusthappened.B．Ayoungtreeisplantedin.C．Nooneploughstheland.D．Nocropsareplantedin.2、Whichofthefollowingpreventsthebaresoilfromrecovering?A．Seedlingsappearingingardens.B．Reducingharmfulraysofthesun.C．Removingweedsfrompavements.D．Replacingplantsinsportsfields.3、Whatcanweedsdoforthesoil?A．Theycreatesoillife.B．Theyhelpimprovethesoil.C．Theygetnutrientsfromthesun.D．Theybreakdownfallenleaves.4、Howcanthesoilremainfertileaftertreesmovein?A．Byaddingmoreweedstothesoil.B．Bytakingouttheweedsconstantly.C．Byremovingthepreviousbushes.D．Bymakinguseofthefallenleaves.22．（8分）Adozeninternationalcoffeeexpertsshuffle（把脚挪来挪去）aroundalongwoodentable,pausingateachsteamingcup,headsdippingandsniffingdeeply.Thenthe

slurping（吃喝或吸吮的声音）begins.Inthewings,coffeefarmerYangFanwatchesintentlyasthejudgescircle,awaitingaverdict（裁定）onherlatestcropofbeans.Chinamaybethespiritualhomeoftea,butitisfastdevelopingareputationasatopcoffeeproducer.ThistastingwasasideeventtothefirsteverPu'erInternationalSpecialtyCoffeeExpoinChina'ssouthwesternYunnanprovince,whichranthiswinteranddrewmorethanathousandattendees,includingindustryaficionados(酷爱者)fromacrosstheglobe."CoffeehashugepotentialinChina,"saysLiuYing,whoswappedherlifeworkinginprivate-equity（私人股权）investmentinBeijingtogrowcoffeeinPu'erfiveyearsago."Theyoungergenerationpreferstodrinkcoffeeintheirofficesmuchmorethantea."Still,Pu'erremainssynonymouswithtea.Thisbustling（喧闹的）townneartheLaosborderissurroundedbythegreenhillsscoredwithteaplantations;itproducesavarietyofteawhichisalsocalledPu’er,consideredoneofChina'smostrefined.Buttheregion'smildclimateisalsoperfectforgrowingArabicacoffee.AndasChina'sfast-livingmillennialsmoveawayfromtraditionalteainfavoroftheinvigoratingcoffee,Pu'er'sfarmersarecateringtothedemand.Yunnanaccountsfor98%ofChina'scoffeeharvest,withhalfcomingfromthemistylandscapearoundPu'er.Today,Chinaisthe13thbiggestcoffeeproducerintheworld—risingfromzerooutputthreedecadesagoto136,000tonsannuallytoday.InApril,Seattle'sannualSpecialtyCoffeeExpodecidedtoshowcaseChinaasitsportraitcountryoforigin.ItfollowsontheheelsofStarbucks'launchingitsfirstsingle-originYunnancoffeelastyearaftereightyearsofpartnershipwithYunnanfarmers.Withglobalcoffeepricesatrecordlows,Yunnanfarmersareprocessingbeansinbespokewaystocreatedistinctflavors—allowingthemtoenterthemarketofspecialtycoffee."Atcurrentcoffeeprices,Ican'tevenfeedmyfamily,"saysthefarmerYang."Myonlywayoutistoproducespecialtycoffee,tomakethebestcoffeebeans."Thatmeanslettingbeansdryintheircherries,thusproducingawild,fruityflavorviaenvironmentalfermentation（发酵）,orallowingthemto"honey"intheirsugaryinnerlayer,whichaddsasubtlesweetness.Backinthetastingroom,Yangawaitstheexperts'verdictonwhetherallthatextraeffortwasworthwhile."IfItoldyouthiswasColombianorPanamacoffee,nobodywouldarguewithme,"saysSamuelGurel,CEOofPu'er'sTorchCoffeeRoasters,asYangbreaksintoahugegrin."It'sagreatexampleofhowChinesecoffeeisevolving."1、WhatcausedLiuYingtoquitherformerjobtogrowcoffeeinPu’er?A．Yunnanaccountsfor98%ofChina’scoffeeharvest.B．ThereisahugepotentialofcoffeemarketinChina.C．Shewantstointroducetheyoungergenerationtocoffee.D．Sheistiredofherworkinprivate-equityinvestment.2、Accordingtothepassage,weknowthatArabicacoffee__________.A．ismainlygrowninYunnanB．appealstoChinese,especiallytheyoungC．isamoreinvigoratingdrinkcomparedwithteaD．needsmildclimatetogrow3、The“extraeffort”inthelastparagraphrefersto__________.A．processingcoffeebeansinbespokewaystocreatedistinctflavorsB．formingabusinesspartnershipwithStarbucksC．loweringthepriceofYunnancoffeebeansD．replacingYunnancoffeewithColombianorPanamacoffee4、WhatdoesSamuelGurelthinkofYang’scoffeebeans?A．praiseworthy B．arguableC．inferior D．unsatisfactory23．（8分）EXPERIENCECOLUMBIAHOTATTRACTIONS◆RIVERBANKSZOO&GARDENItishometomorethan2.000animalsandoneofthenation'smostbeautifulbotanicalgardens.Withmorethan350speciesfromaroundtheworld,Riverbanksisoneofthelargestmid—sizedzoosinthecountry.Hours:9:00a.m．一5:00p.m.daily.Admission:Adults(13—61)一$19.95Children(2—12)——$16.95◆EDVENTURETheSoutll'slargestchildren'smuseumhas300exhibitstomspirechildrentoexpenencethejoyoflearning.whereelsebutEdVenturecanchildrendrivearealfiretruck,anchorthenewsorvisitanothercountry?Hours:Monday-Sunday:9a.m.-5p.m.Admission:MembersFreeChildrenandAdults-$11.95◆SOUTHCAROLINASTATEMUSEUMThestoriesofSouthCarolinacomealivethroughtheexhibitsandcollectionsoftheStateMuseum.Plus,anew4-Dtheaterprovidespopularmoviesthatexciteallages.Museummembersareinvitedtonight-skyobservingandmoreonTuesdaynights!Hours:Mon.,Wed.-Fri.:10a.m.-5p.m.,Tues.:10a.m.-10p.m.,Sat.:10a.m.-6p.m.,Sun.:Noon-5p.m.Admission:Adults(13-61):$8.95Children(3-12):$6.95◆SALUDASHOALSPARKSaludaShoalsParkisasensitiveriverfrontparkthatinvitesvisitorstoexperiencethetreasuresoftheSaludaRiverthroughexceptionaleducationalandculturalopportunities.Fun-filledFamilyActivitiesNightly!(exceptThanksgiving,ChnstmasEveandChristmasnight)Freeforactivities:applywithHolidayLightsadmission($20/car;$40/15-passengervehicle;$60/bus).1、Whichattractionbestsuitsachildinterestedinbroadcastingnews?A．EdVenture.B．TheStateMuseum.C．SaludaShoalsPark.D．RiverbanksZoo&garden.2、Howmuchshouldayoungcouplewitha4-year-oldsonpaytoenjoyvariousplantsandanimals?A．$24.85.B．$20.C．$56.85.D．$35.85.3、WhichofthefollowingisavailabletoalltouristsintheStateMuseum?A．Havingafantasticvisualfeastatl:00p.m.B．VisitingtheexhibitsonSundaymorning.C．Enjoyingfreefamilyactivitieseverynight.D．ObservingtheamazingnightskyonTuesdaynights.24．（8分）Doyouliveinacitywherelookinguptheairqualityforecastisjustasimportantascheckingtheweatherforecastfortheday?Manyplacesaroundtheworldhaveterriblepollutionproblems.Butnownewresearchsuggeststhatwemightbeabletoprotectourselves，naturallyandeasily—simplybytakingvitaminB．Thestudywasconductedbyateamofinternationalresearchers.TheirfocuswasonapollutantknownasPM2.5.Itssize,approximatelyl/40ththewidthofahumanhair,makesitparticularlydangerousbecauseitisreadilyinhaledandsmallenoughtospreadthroughthebodyviatheblood.ThiscancausedamagetothelungsifPM2.5isbeingbreathedinregularly.Thecurrentexperimentinvolvedsubjectsbeingexposedtocleanairandaplacebo(安慰剂)torecordbaselineresponses.Theyweregiventheplaceboforfourweeks,thenexposedthroughafacemasktoairfromahighlypollutedareaindowntownToronto.Theresearchersmeasuredmethylation(甲基化)changestoDNA;thedamageincreasedineachparticipant.However,intherepeatedexperiment,whenthevolunteersweregivenavitaminsupplementcontaining1milligramofvitaminB12,50mgofvitaminB6,and2.5mgoffolicaciddailyforfourweeks,itreducedthedamagetotheDNAbyarangeof28to76percent.TheresultsindicatehowpreventionatanindividuallevelcouldbeusedtofighttheharmfuleffectsofPM2.5.However,researchersstressedthatresearchwasinitsearlystages.Futurestudies,especiallyinheavilypollutedareas,areurgentlyneededandthey’llfinallydeveloppreventivemeasuresusingBvitaminstopreventthehealtheffectsofairpollution.1、Whatdoestheunderlinedword“inhaled”inParagraph1referto?A．breathed.B．smelt.C．approached.D．discovered.2、Howdoestheauthorintroducethecurrentexperiment?A．Byanalyzingcauses.B．Bygivingexamples.C．Bymakingcomparisons.D．Bydescribingeffects.3、Whatcanwelearnabouttheresearchersinthelastparagraph?A．Theywarnedpeopleofheavypollution.B．Theyregrettednotusingenoughvolunteers.C．They’llsoonfindmorewaystotestBvitamins.D．They’llconfirmthefindingsinhighlypollutedareas.4、Whatcanbethebesttitleofthetext?A．PM2.5IsMostDeadlyB．VitaminBBenefitsPeopleMostC．VitaminBOffersAirPollutionProtectionD．AirQualityForecastIsExtremelyImportant25．（10分）Canyoubetoobeautiful?Itishardlyaproblemthatmostofushavetobother—asmuchaswemightliketodreamthatitwerethecase.Yettheblessingsandcursesofbeautyhavebeenalong-standinginterestinpsychology.Dothoseblessedwithshinyfacesandanattractivebodyliveinacloudofappreciation—ordoesitsometimespaytobeordinary?Atthemostbasiclevel,beautymightbethoughttocarryakindofhalo(光环)aroundit;weseethatsomeonehasonegoodquality,andbyassociation,ourdeepmindmayassumethattheyhaveothergoodonestoo.Eveninthecourts,apleasingappearancecanworkitsmagic.Attractivecriminalsarelikelytogetlessstrictsentences,ortoescapepunishmententirely;attractiveplaintiffs(原告),meanwhile,aremorelikelytowintheircaseandgetbiggerfinancialsettlements.“It’saneffectseeneverywhere,”saysWalker.Butifbeautypaysinmostcircumstances,therearestillsituationswhereitcanhaveoppositeresults.Whileattractivemenmaybeconsideredbetterleaders,forinstance,hiddensexistprejudices(偏见)canworkagainstattractivewomen,makingthemlesslikelytobehiredforhigh-leveljobsthatrequirepower.Andasyoumightexpect,good-lookingpeopleofbothsexesrunintoenvy—onestudyfoundthatifyouareinterviewedbysomeoneofthesamesex,theymaybelesslikelytoemployyouiftheyjudgethatyouaremoreattractivethantheyare.Moreworryingly,beingbeautifulorhandsomecouldharmyourmedicalcare.Wetendtolinkgoodlookstohealth,meaningthatillnessesareoftentakenlessseriouslywhentheyaffectthegood-looking.Whentreatingpeopleforpain,forinstance,doctorstendtotakelesscareoverthemoreattractivepeople.Ultimately,scientistspointoutthatfocusingtoomuchonyourappearancecanitselfbeharmfulifitcreatesstressandanxiety—evenforthosealreadyblessedwithgoodlooks.“Ifyouarecrazyaboutattractiveness,itmayaffectyourexperienceandinteractions,”shesays.It’sanoutdatedsaying,butnoamountofbeautycanmakeupforabadpersonality.AsthewriterDorothyParkerputitsoelegantly:“Beautyisonlyskindeep,butuglygoescleantothebone.”1、Fromparagraph1,wecanlearnthat_______.A．somemaybebotheredbytheirunattractiveappearanceB．mostpeoplearenotafraidofbeingtoobeautifulC．wemightalwaysdreamaboutbeingbotheredbyothersD．beingtoobeautifulcanbeaproblembotheringeveryone2、Whichisthebenefitforbeautifulpeople?A．Allattractiveplaintiffshavemorechancestogetawaywithpunishment.B．Womenwithpleasingappearancewillalwaysbeconsideredasbetterleaders.C．Good-lookingpeopleareoftenregardedashavingmanygoodqualities.D．Beautifulcriminalsaremorelikelytopersuadethejudgeandwinthecase.3、Thewritermentionedtheunderlinedsentenceinthelastparagraphto_______.A．persuadeustopaymoreattentiontoourlooksfromnowonB．suggestthatbeautycanhelpmakeabetterpersonalityC．encourageustofocusmoreonimprovingourpersonalityD．askuglypeopletohavemoreconfidenceintheirpersonality4、Whatmightbethebesttitleforthepassage?A．Beauty,ablessing?B．SexistPrejudice.C．Realbeauty.D．BenefitsBeautyholds.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）MykidssitinGee’slivingroomandcautiouslyliftantiqueChristmasornaments(饰品)outofawell-lovedcardboardbox.Geestandsbesidethem,quietly1eachtreasure.ShetellsmethatsheandTombuilttheirornament2piecebypieceduringeachyear’safter-Christmassale.She3asweleavewiththebox.Herprecioustreasures,gatheredoveralifetime,havefoundanew4.WefirstmetTomandGeeintheearlydaysofourmarriage.Someonehadbeen5ourgarbagecanstothegarageeachgarbageday,andJimandIhad6who.Thenonedaywe7him:anelderlymanwholivedacrossthestreet.Ibakedcookiesandleftthemonastooloutsidethegaragewithathank-younote.Whenwegothomefromworkthatday,atypedletterhad8thegift.TheletterwasfromTomandexplainedhowhehadcometowalktheneighborhoodongarbageday,returningcansforpeoplehe9knew.Backwhenhe’dbeenfightingawarIwasn’t10tosee,hisyoungwife,Gee,hadfoundherselflivingalone.Neighborshadtakenthetimetohandlehergarbagecans11shedidn’thaveto,andheneverforgot.Nowhe12itforwardbydoingthesameforallofus.Afewyearsafterwe’dmovedin,Tom13.Wephotocopiedthat14andattachedittooneofourownforGee.Wetoldherhow15Tomhadbeentousandhowwegrievedforher.Shewrotebackandtoldusshe16talkedtoTomeveryday.WhenGeeinvitedusovertolookthroughChristmasornaments,Irealizedhowharditmustbeto17withthatbox,apieceofTom.JimandIagreeto18ourtreewithGee’sornamentsthisChristmas,outoftheboxthatis19inTom’shandwriting.MaybeI’lltalktohimjustasGeestilldoes.Thankyou,I’llsay,forteachinguswhatit20tobeaneighbor.1、A．confirming B．explaining C．revealing D．touching2、A．shelf B．basement C．art D．collection3、A．smiles B．weeps C．sighs D．hesitates4、A．home B．destination C．function D．chance5、A．distributing B．exposing C．returning D．attaching6、A．discovered B．wondered C．foreseen D．investigated7、A．spotted B．impressed C．acknowledged D．grasped8、A．answered B．replaced C．delivered D．rewarded9、A．especially B．thoroughly C．previously D．barely10、A．willing B．voluntary C．alive D．keen11、A．so B．before C．because D．if12、A．brought B．carried C．paid D．pushed13、A．survived B．withdrew C．retired D．died14、A．note B．gift C．letter D．treasure15、A．grateful B．close C．special D．superior16、A．still B．even C．just D．ever17、A．live B．finish C．go D．part18、A．supply B．manage C．decorate D．arm19、A．drafted B．labeled C．signed D．preserved20、A．reflects B．desires C．anticipates D．means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）Canadaisoneofthelargestcountries,secondonly1．Russia.Canadahasvastareasofwilderness.Forthose2．aretiredofcrowdedpeopleinmodemcities,itisagoodplacetogo,asyouarelikelytowalk,sailorskiforhoursorevendayswithoutmeetinganotherperson.Canadians,3．(especial)wildlifephotographersandhunters,arequitefondofthewilderness.Beautifulsceneryisjustoneofthe4．(treasure)Canadahastooffer.Thevast5．(major)ofCanada’spopulationlivesinurbanareas.Youwillbe6．(delight)byToronto,Montreal,VancouverandEdmonton—allknownaroundtheworldfor7．(they)urbanwayoflife,beautifularchitectureanduniqueculture.TorontoisthelargestcityinCanada.IntheheartofTorontoistheCanadianNationalTower,which8．(call)theCNTowerforshort.Rising553metresintothesky,itisthethirdtallesttowerintheworld.Montreal,9．portcityintheprovinceofQuebec,isthesecondlargestcityinCanada.ItisalsothesecondlargestFrench-speakingcityintheworld,Paris10．(be)thelargest.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学们交换修改作文，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。错误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。Lastweek,Ihadaargumentwithmybestfriend、Allofuswenthomewithanger,Afterfinishingdinner,Ibegantodomyhomework、Sudden,mystomachhurtbadly、Myparentstookmethehospitalimmediately、ThedoctorsaidIeatuncleanfoodandIneededtostayinthehospitalfortwodays,thatmademefeelworseandworriedaboutmylessons、Tomysurprised,mybestfriendcametoseeme、Shewassoworriedaboutmeandhelpedmeaboutmylessons