安徽省阜阳市2021-2022学年高二英语下学期期末统测试题（Word版带答案）

阜阳市2021～2022学年度高二年级教学质量统测英语考生在答题前请认真阅读本注意事项及各题答题要求1.答题前，考生务必将自己的姓名、考生号、考场号、座位号填写在答题卡上。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，请用橡皮擦干净后，再选涂其他答案标号。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。第一部分听力（共两节，满分30分）第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。1.Whereareprobablythespeakers?A.Inadessertstore.B.Inafruitstore.C.Inarestaurant.2.Whatdoesthemanwanttodo?A.TalktohisroommateB.Lowertherent.C.Findanewapartment.3.Howmanypeoplecametothemeeting?A.13.B.18.C.30.4.Whatdoesthewomanthinkofcooking?A.It'sdifficult.B.It'seasy.C.It'sboring.5.Whatarethespeakersmainlytalkingabout?A.Ariddle.B.Theman'sfather.C.Someanimals.第二节听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。听第6段材料，回答第6、7题。\n6.Whoisprobablythewoman?A.Apatient.B.Anurse.C.Achemist.7.Whatdidthemanlose?A.Histestreport.B.Hisphone.C.Hismedicalcard.听第7段材料，回答第8至10题。8.Whyistheman'scellphoneoffaccordingtotheman?A.Hehasbeenusingitallday.B.Thereisaproblemwithitsbattery.C.Heforgottochargeitinadvance.9.Howwillthemanchargehisphone?A.Byusingasharedcharger.B.Byusingthewoman'sphonecharger.C.Byusinghismobilepowerbank.10.Whatwillthemando?A.Borrowafewcoins.B.Gobackhome.C.Takethebus.听第8段材料，回答第11至13题。11.WhatwasJohn'schildhooddream?A.Tobeapilot.B.Tobeascientist.C.Tobeanofficeworker.12.Whatisthewoman'spurposeoflearningEnglish?A.Togoabroadalone.B.Tobecomeatranslator.C.Togetherworkdonebetter.13.WhydidJohn'sfatherfeelupset?A.Johnneverachievedanything.B.Heretiredfromthejob.C.Helosthispetdog.\n听第9段材料，回答第14至16题。14.WhendidNancystartplayingtheviolin?A.Whenshewasinprimaryschool.B.Whenshewasinjuniorhighschool.C.Whenshewasinhighschool.15.Whatdoesthemanliketocollect?A.Stamps.B.Leaves.C.Sounds.16.WhydoesNancymentionherbrother?A.Toshowthatherbrotherhasastrangehobby.B.Toprovethatherbrotherisamazing.C.Toencouragethemantosticktohishobby.听第10段材料，回答第17至20题。17.WhatisLucas?A.Apostman.B.Ahost.C.Ascientist.18.WhatdoesLucasusuallydoafterwork?A.Singhappily.B.Makefriends.C.Doexercise.19.WhatisthereasonthatLucasasksMrs.Millerforwater?A.Hewantstomakesureshe'sfine.B.Heisverythirsty.C.Helikestalkingwithher.20.Whatisthetalkmainlyabout?A.Waystobeapositiveperson.B.Anactiveyoungman.C.AstorybetweenLucasandMrs.Miller.第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。APuyduFouisthesecondmostvisitedthemeparkinFrance,afterParisDisneyland,andtheworld’sgreatest,andmostauthentic,livinghistorypark.\nFoundedin1977byayounglocalaristocratwithapassionforhistory,PhilippedeVilliers,thethemeparkhasdevelopedtobecomeamulti-attractionhistoricthemeparkprovidingatripbackintimetodifferentagesandtimesofthepast.UnlikeDisneyland,PuyduFou—whilemakingsurethattheattractionsallprovideagreatvisitorexperience—alsotakesprideinensuringafairdegreeofhistoricalaccuracy.Thesetsandtheshowsarepicturesoftheworldasitreallywas...withafewspecialeffectsaddedin.Inthesummerholidayperiod(JunetomidSeptember),climaxofthedayisthefamous“Cinéscénie”.theoriginaleventaroundwhichthePuyduFouthemeparkhassubsequentlydevelopedandexpanded.Thismagnificentafter-darkspectacularoflight,fireworks,soundandaction,setagainstthebackdropoftheoldChâteauduPuyduFou,hasbeenseenovertheyearsbyover10millionspectators,lasting1hourand40minutes,involving1200actorsandextras,andperformedovera50acrestage.PuyduFouticketpricesatthegate-2022Entrancetothesite,withdaytimeshowsOneday:Adult:€43Children5-13:€32Twodays:Adult:€61Children5-13:€45Entrancetothesite,daytimeshows+Cinéscénie(Fri.Sat.from9thJuneto15thSeptember—mustbebookedinadvance)Oneday:Adult:€61Children5-13:€50Twodays:Adult:€84Children5-13:€66Threedays:Adult:€89Children5-13:€70Childrenunder5:Free1.WhichofthefollowinghighlightsPuyduFou?A.Passionforhistoricconservation.B.TheincreasingpopularityinFrance.C.Arediscoveryofhistoriclife.D.Arecordofspecialeffectsinthepast.2.Whatdowelearnabout“Cinéscénie”?A.Itisanemergingshow.B.Itisanight-timeshow.C.Itisasoloshow.D.Itisashowofthepast.3.What’sthechargeforacouplewitha4-year-oldkidtohaveonedayvisitwithdaytimeshows?A.€43.B.€86.C.€122.D.€136.\n【答案】1.C2.B3.BBThedogPoochChiChimanagedtoopenthedoorandletafirecrewinafterhisownercollapsedonthekitchenfloor.Respondersweresearchingforanotherentrancewhentheyhearda“click”asthedogmanagedtounlockthedoortolettheminTheyfoundtheman,namedonlyasMrGreen,collapsedonthefloorinthekitchenasthefiretookholdonthehob.Firefightersthenswiftlyputoutthefireandcarriedoutfirstaiduntilparamedics(急救医士)arrived.DevonandSomersetFireandRescueServicesaid“apotentialdisaster”wasavertedwithhelpfromthedog.TheysaidtheywerecalledtothesceneafterasmokedetectorwasactivatedandaCarelinealarmwassounded.MrGreeninitiallyansweredthecallbutoperatoratCarelinelostcommunication.Withinsixminutes,thecrewwasonsceneandinvestigating.Theycouldhearthealarmbutwereunabletoestablishcontactwiththemaninside.Withcurtainsdrawn,thecrewcouldnotseein-sidebutcouldhearadogbarking.Theytriedthefrontdoor,butitwouldn’topen.Asthecrewlookedforanotherentrance,theyhearda“click”andthefrontdooropened.Thecrewwentinsidetofindamancollapsedonthefloorinthekitchenwhenafirewasbeginningtotakeholdonthecooker.Theycontactedtheambulanceservice,putoutthefireandallowedfreshairin.Firefightersthencarriedoutfirstaidandstabilizedthemanuntilparamedicsarrived.Itwasn’tuntillaterintheincidentthattheydiscoveredthatChiChihadmanagedtoopenthefrontdoorandletthecrewinside.IanBolton,CrewManagerforHomeandPartnershipsatDevonandSomersetFireandRescueServiceadded:“Havingmonitoreddetectioninpeople’shomesmeansthefireserviceareonlyminutesawayfromprovidinglifesavingassistance.ThisisarealsuccessstoryandhighlightstheimportanceofCarelineandthefireservice.Careline’ssystem,combinedwiththespeedofourcrewsgettingtotheincident,savedMrGreen’slife.Thecherryonthecake.however,wasChiChilettingthecrewsinbeforetheyhadtoforceentrytotheproperty.”4.Whatdoestheunderlinedword“averted”inParagraph3mean?A.Approved.B.Avoided.C.Approached.D.Adjusted.5.Whydidtheoperatorlosecommunication?\nA.Themanfelldownandcouldn’tmove.B.Thesystembrokedownaccidentally.C.Theoperatorlosthissenses.D.Thecrewcouldn’tseeinside.6.AccordingtoIanBolton,whatisthemostimportantfactorintherescue?A.TheswiftreactionofMr.Green.B.Thewideuseofthesmokedetector.C.Thedogunlockingtheentrancetothedoor.D.ThejointworkofCarelineandthefireservice.7.WhichwordcanbestdescribeChiChi?A.Competent.B.Encouraging.C.Considerate.D.Energetic.【答案】4.B5.A6.D7.ACClimatechangeandland-usechangeareprojectedtomakewildfiresmorefrequentandintense,withaglobalincreaseofextremefiresofupto14percentby2030,30percentbytheendof2050and50percentbytheendofthecentury,accordingtoanewreportbytheUNEnvironmentProgramme(UNEP)andGRID-Arendal.Thereportcallsforacompletechangeingovernmentspendingonwildfires,changingtheirinvestmentsfromreactionandresponsetopreventionandpreparedness.ThereportspreadinglikeWildfire:TheRisingThreatofExtraordinaryLandscapeFiresfindsahigherriskevenfortheArcticandotherregionspreviouslyunaffectedbywildfires,thereporthadbeenreleasedbeforerepresentativesof193nationsheldameetinginNairobifortherestarted5thsessionoftheUNEnvironmentAssembly(UNEA-5.2),between28Februaryand2March,2022.Thepublicationcallsongovernmentstoadoptanew“FireReadyformula”withtwo-thirdsofspendingdevotedtoplanning,prevention,preparedness,andrecovery.Withonethirdleftforresponse,currently,directresponsestowildfirestypicallyreceiveoverhalfofrelatedcost,whileplanningandpreventionreceivelessthanonepercent.Topreventfires,authorscallforacombinationofdataandscience-basedmonitoringsystemswithnativeknowledgeandforastrongerregionalandinternationalcooperation.“Currentgovernmentresponsestowildfiresareoftenputtingmoneyinthewrongplace.Those\nemergencyserviceworkersandfirefightersonthefrontlineswhoareriskingtheirlivestofightforestwildfiresneedtobesupported.Wehavetoreducetheriskofextremewildfiresbybeingbetterprepared:investmoreinfireriskreduction,workwithlocalcommunities,andstrengthenglobalcommitmenttofightclimatechange,”saidIngerAndersen.UNEPExecutiveDirector.Wildfiresdisproportionately(不成比例地)affecttheworld’spoorestnations.Withanimpactthatextendsfordays,weeksandevenyearsaftertheflamesdiedown,theyblockprogresstowardstheSustainableDevelopmentGoalsanddeepensocialinequalitiesinsomefields.8.Whatdoesthereportappealtothegovernmenttodowithwildfires?A.Investmoremoneyonforecast.B.Focusonpreventionandpreparedness.C.Giveadvancedwarningtowildanimals.D.Plantmoretreestomakeupforthelossofforests.9.What’sIngerAndersen’sattitudetowardsthecurrentgovernment’smeasures?A.Supportive.B.Unconcerned.C.Unfair.D.Critical.10.Whatistheauthormostlikelytotalkaboutnext?A.Theareashitbyclimatechange.B.Thenamesoftheworld’srichestnations.C.Thebadeffectsofwildfiresondifferentfields.D.Therelationshipbetweenwildfiresandhealth.11.Whatisthemainideaofthetext?A.Wildfiresarespreadingworldwide.B.TheUNheldameetingtodiscusswildfires.C.Governmentsshouldpreparethemselvesforwildfires.D.TheUNEPExecutiveDirectorreleasedareportonwildfires.【答案】8.B9.D10.C11.CDInformationaboutworkercommutes(上下班通勤)fromsmartphonesandfitnesstrackerscanpredictindividualjobperformance,accordingtoanewstudy."Yourcommutepredictsyourday,”saidAndrewCampbell.theleadresearcherandco-authorofthestudy.“Thisre-searchdemonstratesthatmobilesensingiscapableofidentifyinghowthecommuteaffectsindividualworkers.”\nParticipantsinthestudyusedanactivitytrackerandasmartphone-basedsensingapptocapturephysiologicalandbehavioralpatternsduringcommuting,includingactivitylevels,phoneusage,heartrates,andstress.Thesystemalsocapturedexternalfactorssuchaslocations,weather,commuteduration,andcommutevariability,Researchersanalyzeddatafrom275workerscollectedoveraone-yearperiodbeforetheoutbreakofCOVID-19.Theworkers,closeto95%ofwhomdrove,weremonitoredastheytraveled.Theywerealsomonitoredfor30-minuteperiodsbeforeandaftercommuting.Thestudyassessedworkersusingtworecognizedstandardsofjobperformance;counter-productiveworkbehaviorandorganizationalcitizenshipbehavior.Theformerharmsanorganizationonpurpose,whereasthelatterisbeneficial.Baselinesforbothmeasureswereestablishedregularlythroughself-reportingquestionnaires."Comparedtolowperformers,highperformersdisplaygreaterconsistencyinthetimetheyarriveandleavework,"saidPinoAudia,aprofessorofManagementandOrganizationsattheTuckSchoolofBusinessandaco-authorofthestudy."Thisdramaticallyreducesthenegativeimpactsofcommutingvariabilityandsuggeststhatthesecrettohighperformancemaylieinstickingtobetterroutines."Thestudyalsofindsthathighperformerstendtohavephysiologicalindicatorsthatareconsistentwithphysicalfitnessandstressresilience.Andlowperformershavehigherstresslevelsinthetimesbefore,during,and,aftercommutes,andusetheirphonesmoreduringthecommutes.Previousresearchoncommutingindicatesthatstress,anxiety,andfrustrationfromcommutingcanleadtoalessefficientworkforce.Thisisthefirststudyusingwearablesthatarenoteasilynoticedandsmartphonestopredictworkerperformancefromcommutingdataalone.Previousstudieshaveusedmoreintrusive(插人的）andexpensivetechnologytounder-standthecommutingexperience,butnostudyhaspreviouslyconnectedcommutingdatawiththeimpactonworkplaceperformance.Thestudyalsodemonstratesthatnotallcommutescanbebad.Bytrackingcommutingtraitssuchaswalkingdistanceandsteps,theresearchconfirmsthatcommuterswhoareinvolvedinactiveformsofcommutingtypicallyexperienceincreasedproductivityatwork.12.WhatisParagraph2mainlyabout?A.Thefunctionofanactivitytrackersandapp.B.Thewayinwhichthestudywasconducted.C.Theanalysisresearchersmadeofthepatterns.\nD.Thecomparisonsbeforeandaftercommuting.13.Whatcanwelearnabouthighperformers?A.Theycanbenefitfromalessefficientworkforce.B.Theyhavehigherstresslevelsbeforecommutes.C.Theyarriveandleaveworkalmostatfixedtimeeveryday.D.Theyaregoodathandlingthenegativeimpactsoncommuting.14.Whatisspecialaboutthisstudy?AItusedthemostadvancedwearabledevices.BItfirstlylinkedcommutingdatatojobperformance.C.Itsresearchmethodwasmorescientificandreliable.D.Thecommutingdataitcollectedweremoreaccurate.15.Whatisthebesttitleforthetext?A.Thelongerthecommute,thebetterthejobperformanceB.WearableshelpreducetheimpactofcommutingonworkersC.CommutinghasanegativeimpactonjobperformanceD.Wearabletechhelpspredictjobperformancethroughcommutingdata【答案】12.B13.C14.B15.D第二节（共5小题，每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。Usuallythewaytodealwithanxietyistodothingslikechangeyourattitudetowardit,faceyourfearsandmakelifestylechangestoimproveyouroverallmood.Thoughevenifyou’reworkingtowardallthat,beingnervousstillfeelsawfulinthemoment.___16___Thisarticlewilllistsometoloweritwhenitpopsup.Focusonthenextsimplethingyouneedtodo.___17___So,it’shardtofocusorconcentrate.Ifyou’reinthemiddleofsomethingitcanhelptotakeitonetinystepatatime.Thenjustthinkaboutthenexttaskyouneedtodo.Ifyou’regettingreadytogotoaparty,justaimtoputyourshoeson,thentiethem,thenopentheclosetdoor,thengrabyour\ncoat,andsoon.___18___Itgetsyououtofyourheadandfocusedonsomethingotherthanyourworriedthoughtsorphysicaldiscomfort.Itcouldmeanputtingonsomemusic,goingforawalk,throwingyourselfintoamentallytaxingproject,doingsomemathinyourhead,orstartingamovie.Calmyourselfwithdeepbreathing.Deepbreathingputsyourbodyinto“relaxationmode”.Sinceyoucan’tberelaxedandanxiousatthesametime,thatwillhelpreleasetheanxiety.___19___Ifyou’realreadyfairlynervous,it’slesseffective.Putonsomesoothingmusic.Ifyou’resomewherewhereit’spossible,andyouneedtocalmdown,putonsomerelaxingmusic,ornaturesounds,orplayoneofthoseguidedrelaxationmeditations.TherearealsotonsofthemonYouTube.___20___A.Distractyourself.B.Usewhatyoualreadyhave.CAnxietycanmakeyourmindrace.D.Youcanfindrecordingsofthemeasilyenough.E.Itworksbestifyouareabletocatchtheanxietyearly.F.Itmakessensetohaveanumberoftechniquestoreduceanxiety.G.Experimentandyoucanfindoneofthemthemostsuitableforyou.【答案】16.F17.C18.A19.E20.D第三部分语言知识运用（共两节，满分45分）第一节完形填空（共20小题，每小题1.5分，满分30分）阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填人空白处的最佳选项。Oneday,Rosie,15,whohasprofoundandmultiplelearningdisabilities(PMLD)foundhercurrenttoybroken.Ithad___21___hersincehersecondbirthday.Afteralltheattemptstofixit___22___,hersister,JosieWheel,decidedtogivesocialmediaa___23___.\nShepostedamessageonTwitteraskingforhelptofinda___24___modelofthetoy.“Thetoyhadstoppedbeing___25___bythecompanynearlyadecadeagoandwe’re___26___theonesthatwork.Weneverexpectedthe___27___tobesohugeontheInternet,”saidthe18-year-oldfromCoventry.Shesaidmanywarm-heartedpeoplewereso___28___tohelpjustoutofthegoodnessoftheirheart___29___theyknewnothingaboutRosie.About15substituteshadsofarbeen____30____,butpeoplewerestillcomingforward.Itwould____31____becloserto30whichwasamazing.Peoplehadalso____32____tofixthebrokentoysaftertheybegantobreakduetosomuch____33____.“Rosiedoesn’t____34____understandeverythingthat’sgoingon,becauseofher____35____,butwhenshereceivesallofthemnextmonthandcanphysicallyseethemIcanimagineher____36____,”LorraineWheel,thegirls’mother,____37____:“Josieandhersisterhavethestrongest____38____andJosiehasdonemanythingsto____39____thatRosieisthehappiestgirlever.Icouldn’tbemore____40____ofher.”21.A.humbledB.discouragedC.accompaniedD.convinced22.A.endedB.helpedC.changedD.failed23.A.talkB.handC.shotD.voice24.A.specificB.separateC.cheapD.new25.A.soldB.testedC.expectedD.assigned26.A.withdrawingfromB.huntingforC.givingupD.takingover27.A.problemB.differenceC.responseD.distribution28.A.requestedB.determinedC.remindedD.predicted29.A.ifB.onceC.becauseD.though30.A.receivedB.demandedC.promisedD.purchased31.A.probablyB.temporarilyC.regularlyD.normally32.A.happenedB.refusedC.offeredD.pretended33.A.pressureB.coverageC.applauseD.usage34.A.fortunatelyB.completelyC.correctlyD.partly35.A.guiltB.frustrationC.conditionD.envy\n36.A.excitementB.ambitionC.proficiencyD.hesitation37.A.urgedB.guaranteedC.comfortedD.added38.A.supportB.bondC.willD.point39.A.ensureB.imagineC.discoverD.predict40.A.carefulB.confidentC.hopefulD.proud【答案】21.C22.D23.C24.A25.A26.B27.C28.B29.D30.C31.A32.C33.D34.B35.C36.A37.D38.B39.A40.D第二节语法填空（共10小题，每小题1.5分，满分15分）阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。Thefilm,RedChilistarsactressesLyuLipingandHeXinyuanaswellasactorWangNaixun.Thetheatricalrelease___41___(come)toanendinacinemainBeijing'sChaoyangdistrictlastWednesday,Ittellsastoryabouthowtwoleft-behindteenagers,asisterandbroth-er,livinginaremotevillagedeepinthemountainousareasofHubeiprovinceearnmoneybysellingredchiliesduringasummerholiday.Theiraimistopurchaseasmartphone___42___(have)avideocallwiththeirparentswhoworkinabigcityfarfromtheirhomevillage.Tomakethedreamofbuyingthephone___43___reality,theteenagershavetofirstbuythechiliharvestfromfellowvillagersandthentrekacrosshillsandrivers,___44___(shoulder)theheavyloadofthechilies,inordertoarriveatabustlingmarketinatown___45___theycansellthechiliesatahigherprice.Beingthemiddlemen___46___(challenge)bothoftheyoungstersforlong.Buttheydealwithmanytroublesduringthejourney.___47___(direct)byLiJunlin,agraduatefromBeijingFilmAcademy,itshowstheyoungsters’___48___(clever)astheydealwithadultsfromdifferentbackgrounds.Lisaysthathehopesthefilmcandrawthepublic'sattentiontothe___49___(spirit)worldofyoungonesandinspirethemtocaremore___50___left-behindchildren.【答案】41.came42.tohave43.a44.shouldering45.where46.haschallenged47.Directed\n48.cleverness49.spiritual50.about第四部分写作（共两节，满分35分）第一节短文改错（共10小题；每小题1分，满分10分）51.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：在错的词下画一横线，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。WhenIwasayounggirl,Idreamedofbecomingthescientistinfuture.However,IknowverywellthatIwouldnotsuccesswithoutefforts.Torealizemygoal,soImadegooduseoftimeandstudiedhardly.Aftergraduatingincollege,Ifoundajobasateacher.AlthoughIlikedteachingverymuch,Iwasdevotedtomakeexperimentsinmysparetime.NowIhavemadeprogresses.Iamveryhappywithseveralofmyresearchpapersthathavepublished.Theladderofyourdreamisstillfarahead,butInevergiveup.【答案】1.the→a2.know→knew3.sucess→succeed4.删除so5.hardly→hard6.in→from7.make→making8.progresses→progress9.在published前加been10.your→my\n第二节书面表达（满分25分）52.假定你是李华，你的朋友Chris想要参加学生会主席竞选，并想了解该活动的相关信息。请给他回一封电子邮件，内容包括：1.活动信息；2.活动准备；3.表达期待。注意：1.词数100左右；2.可以适当增加细节，以使行文连贯。【答案】DearChris,Hearingthatyouaretorunfortheelection,I'mwritingtoinformyouofsomerelevantinformation.Tobeginwith,theelectionwillbeheldat2P.M.nextSaturdayintheschoolauditorium.Priortotheelection,ensureyoumakegoodpreparations,rangingfromgivingaspeechtothinkingabouthowtobestanswerthequestionsthatcouldbeasked.Betteryet,youcanfilmyourspeechtoreviewyourperformance.Keepatituntilyoucanconciselyandconfidentlypresentyourbestself.I'msureifyouputyourbestfootforwardintheelection,youwillbeonestepclosertoreachingtheendoftherainbowandobtainingyourdreamposition.Iwishyouthebestofluck.Yourssincerely,LiHua听力答案：1~5CCBBA6~10BCBAC11~15AABAB16~20CACAB