2023届陕西省西安市华清高三第二次联考英语试卷含解析

2023高考英语模拟试卷考生须知：1．全卷分选择题和非选择题两部分，全部在答题纸上作答。选择题必须用2B铅笔填涂；非选择题的答案必须用黑色字迹的钢笔或答字笔写在“答题纸”相应位置上。2．请用黑色字迹的钢笔或答字笔在“答题纸”上先填写姓名和准考证号。3．保持卡面清洁，不要折叠，不要弄破、弄皱，在草稿纸、试题卷上答题无效。第一部分（共20小题，每小题1.5分，满分30分）1．Thewetweatherwillcontinuetomorrow,whenacoldfronttoarrive.A．isexpectedB．isexpectingC．expectsD．willbeexpected2．---Couldweaccomplishthetaskaccordingtotheschedule?---Idoubtthat.Theproblemremains______wecangetfinancialaidwithinthisweek.A．that B．how C．why D．when3．Howlongdoyousupposeitis________________hearrivedandbegantoworkthere？A．when B．beforeC．after D．since4．Thepoliceareoffering______rewardof$50,000forinformationleadingtothearrestof_____murderer.A．the;the B．a;a C．the;a D．a;the5．TheywerestandingsofarawaythatIcouldn’t_____theirfacesclearly.A．makeout B．makefor C．makeoff D．makeup6．Wehavenoideawhatairwewillbebreathinginthefutureifweanythingtostophazyweather.A．hadn’tdoneB．didn’tdoC．haven’tdoneD．don’tdo7．It’ssupposedtobetheendofthepaperback(简装书)andthe__________ofdigitalmedia,butsomebookstoresaresurvivingtheInternetAgewithsurprisingsuccess.A．deadline B．dawnC．dusk D．departure8．________whoareabletoworkthroughthestrugglearethe________whoaregoingtobesuccessful.A．Someone;one B．Anyone;oneC．He;ones D．Those;ones9．---Howoftendoyouworkout?---_________,butusuallyonceaweek.A．Havenoidea. B．Itdepends. C．Asusual. D．Generallyspeaking.10．Lucy__writingheressayby10:00thismorning.Afterthat,shelistenedtomusicforawhile.A．willfinish B．finishesC．hasfinished D．hadfinished11．Thefirstsnowdidn’tfalluntilFebruaryinourprovincethisyear,________wasunexpected.A．it B．which C．that D．what12．—TheKiwifruitsinthissupermarketare_______salenow,andtheyaresold______thepound.—Really?Howmuchcheaperarethey?A．for;in B．on;by C．for,by D．on,in13．—I'dratherhavesomewine,ifyoudon'tmind.—________.Don'tforgetyouwilldrive.A．Anythingbutthat B．ByallmeansC．Takeiteasy D．Iwon'tsaynotothis14．––Whatdidthedoctorsayaboutyourinjury?––ShesaidIshouldavoiddoingtoomuchexercise______itfeelsbetter.A．untilB．sinceC．ifD．while15．Breakingupisthebusinessofthetwolovers,________nootherpersonshouldbeinvolved.A．which B．inthatC．that D．inwhich16．IthoughtFatherwouldbebetter,but______itis,heisgettingworse,whichmakesmemoreworried.A．before B．as C．because D．after17．Guangdongprovincerolledoutnewguidelines,_____offensivenicknamesandonlineviolenceasschoolbullying.A．defining B．definedC．todefine D．havingdefined18．---Hi,Betty,areyoufreeatpresent?Ihavetoaskyouforafavor．----_____．Withpleasure．A．Sorry,Iambusy B．GoaheadC．Helpyourself D．Ask,please19．ProfessorLi________forhisinformativelecture,waswarmlyreceivedbythestudents.A．knownB．knowingC．havingknownD．tobeknown20．Westronglyadviseyou______eatingyourmealsolate.It’snothealthy.A．on B．against C．from D．over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）TheLondonBikeShowTheUK’slargestcyclingshowwillonceagaintakeplaceatLondon’sExCelexhibition(展览)centrefromthe16thtothe19thofFebruarynextyear.With300+exhibitors,livedemonstralions,andabiketesttracksthereissomethingforeverybikelover.Withtwowheels,therearelimitlesspossibilities.TheLondonBikeShowistheUK’slargestcyclingexhibitionandattractsthousandsofcyclistsoverfourdaysinFebruary,Whetherroadcycling,mountainbiking,BMX,cyclecross,afamilycycleattheweekendorridingtoworkisyourthing—you’llfindplentygoingontoensureyouhaveagreatdayattheshow!TheLondonBikeShowisalsohometoAirtotheThrone,theUK’sbiggestfreestylemountainbikecompetition.Thistwo-dayinternationalinvitationalcompetitionoffersa€10,000prizepottothetopridersintheworld.ComealongearlyoneitherSaturdayorSunday,beatthetrafficandjoinusfora60-milesportive—longenoughforanacceptableridebutshortenoughtogetyoubackintimetoexploretheBikeShowandwatchallthenicestuffthatyoudoneed.1、Theorganizersoftheshowpromisethat________.A．anybikefancanfindtherewhatcansatisfythemB．allthebikesonshowthereareofthebestqualityC．anybiketherewillserveyourdifferentpurposesD．theearliestvisitorswillgetawonderfulsurprise2、Basicallyspeaking,AirtotheThroneismeantto________.A．satisfyyourappetiteforacompetitionB．attractmorepeopletomountaincyclingC．promotethesalesofmountainbicyclesD．determinethetopridersthroughtherace22．（8分）TheIslandRuleisoneofthebestexplanationsscientistscouldgivetotheobservablephenomenonthatanimalsandhumanshaveevolved(演变)dependingontheresourcesavailableintheirhabitat(栖息地).Throughtime,scientistshavenoticedthroughfossil(化石)recordsthatsomelargeanimalsfrommainlandhabitatshavedwarf(矮小的)versionsinblandhabitats.AreportfromBBCdescribedtheexistenceofwhatscientistscall“hobbitisland”offasmallislandsomewhereinIndonesia.Itwasgivensuchanamebecausefossilrecordsoftiny,humanlikecreatureshavebeenfoundintheregion.Whattheycalledas“hobbits”or“HomoFloresiensis”,areonlyastallasonemeterandarcsmallversionsofearlyhumanspecieswithtinierbrains.Thoughscientistscannotperfectlytracetheoriginofthe“HomoFloriensis”,theybelievethattheyarchumanrelatives,butitisthe“islandlife”thathascausedthemtoevolveastheyhave.Scientistshavenoticedthroughfossilrecordsandexistingorganisms(有机体)todaythatitseemsiflargeanimalsgrowsmallinislandswhilesmallanimalsgrowlargeinlargerislands.Intheory,animalandhumanbodieshaveadjustedtotheavailablefoodandfreshwaterintheirhabitats.Sincethereisnoopportunityforthemtoleavetheirisland,theymightaswelladapt.NewYorkMagazineexplainedthatislandsusuallyhavefewerpredators(捕食者)thanmainlandecosystems.However,itisthelackofresourcesthatcausethedeathofmanyanimals.Asameansofnaturaladaptation,thebodiesoftheseanimalshaveevolvedsmallerthantheirancestors,makingtheirbodiesrequirefewerresources.AreportfromWebEcoistlisteddownafewexamplesofanimalsthathaveshrunksignificantlycomparedwiththeirancestors.SomeoftheseincludetheBalitigerassmallasleopards(豹).1、Howdidthename“hobbitisland”comefrom?A．Scientistsdiscovereddwarfpeoplelivingontheisland.B．Onemetertallhumanbeingmadealivingontheseislands.C．Scientistsfoundhumanspecieswithtinierbrainsonanisland.D．Evidencesshowingtiny,human-likecreaturesontheislandwerefound.2、Whatdoyouknowabout“HomoFloricnsis”?A．TheyusedtoonlylivesomewhereinIndonesia.B．Theyweretheearliestancestorofhumanbeings.C．Theylooksmallcomparedwithnormalhumans.D．Theygraduallygrewlargeronthelargerislands.3、AccordingtoNewYorkMagazine,.A．animalsonislandlackenoughfoodtoliveonB．manyanimalsdiedofffornoapparentreasonC．toomanypredatorswilldodamagetotheecosystemD．predatorsmakeislandanimalsturnsmaller4、Whatcanbeinferredfromthetext?A．Morepredatorscanhelpanimalsgrowstrongerandlarger.B．Balitigerturnssmallbecauseofadaptationtotheenvironment.C．Morefoodresourcesshouldbeprovidedloislands.D．Animalsonmainlandarcfiercerthanthoseonislands.23．（8分）RecentlyIandotherRedCrossvolunteersmetagroupofvictimsfromHurricaneKatrina.Wewerethere,asmentalhealthprofessionals,tooffer“psychological(心理的)firstaid”andIwasstruckbythesimplehealingpowerofpresence.Aswewalkedinthegatetotheshelter,weweregreetedwithaburstofgratitudefromthefirstpersonwemet.Ifeltappreciated,butalsoguilty,becauseIhadn’treallydoneanythingyet.Ifirstrealizedthepowerofpresencemanyyearsagowhenafriend’smotherpassedawayunexpectedly.Ihadreceivedacallsayingshehadjustpassedaway.Iwantedtorushdownthereimmediately,butdidn’twanttodisturbthisverypersonalperiodofsadness.Iwastornaboutwhattodo.Anotherfriendwithmethensaid,“Justgo.Justbethere.”Idid,andIwillneverregretit.Sincethen,Ihavenothesitatedtobeinthepresenceofothers.OnceIsatatthebedsideofayoungmansufferingfromthepainofhisAIDS-relateddying.Hewasnotawake,andobviouslyunawareofothers’presence.However,theatmospherewasbynomeanssolemn.Hisfamily,playingguitarsandsinging,allowedhimtobepresentwiththemasthoughhewerestillfullyalive.Inmylife,Iamrepeatedlystruckbythehealingpowerofpresence.Init,noneofusaretrulyalone.Itisnotonlysomethingwegivetoothersbutalsochangesmeforthebetter.1、Whywerethehurricanevictimsgratefultotheauthor?A．Hebuiltsheltersforthem.B．Hecametostaywiththem.C．Hegaveimmediatefirstaidtothem.D．Hebroughtmentalhealthprofessionals.2、Whatdidtheauthordowhenhisfriend’smotherpassedaway?A．Hedecidednottodisturb.B．Hewenttohisfriends’atonce.C．Heknewwhattodoinstantly.D．Hehesitatedoverwhethertogo.3、Whatdoestheunderlinedword“solemn”inParagraph3probablymean?A．Heavybutwarm.B．Alittlesadbutcomfortable.C．Relaxinganddelightful.D．Veryseriousandunhappy.4、Whathastheauthorlearnedfromhisexperience?A．Beingpresentcanmakeabigdifference.B．Afriendinneedisafriendindeed.C．Thefamilyharmonyisthehappiestthinginlife.D．Beingavolunteercanmakeone’slifemoresignificant.24．（8分）ThereisanEnglishsaying:“Laughteristhebestmedicine.”Untilrecently,fewpeopletookthesayingveryseriously.Nowhowever,doctorshavebeguntostudylaughterandtheeffectsithasonthehumanbody.Theyhavefoundfactsthatlaughterreallycanimprovepeople’shealth.[Testswerecarriedouttostudytheeffectsoflaughteronthebody.Peoplewatchedfunnyfilmswhiledoctorscheckedtheirheartrate,bloodpressure,breathingandmuscles.Itwasfoundthatlaughterhassimilareffectstophysicalexercise.Itincreasesbloodpressure,theheartrateandtherateofbreathing;italsoworksseveralgroupsofmusclesintheface,thestomach,andeventhefeet.Iflaughterexercisesthebody,itmustbebeneficial.Othertestshaveshownthatlaughterappearstobeabletoreducingtheeffectofpainonthebody.Inoneexperimentdoctorsproducepainonthebody.Inoneexperimentdoctorsproducepainingroupsofstudentswholistenedtodifferentradioprograms.Thegroupwhichtolerated(忍受)thepainforthelongesttimewasthegroupswhichlistenedtoafunnyprogram.Thereasonwhylaughtercanreducepainseemstobethatithelpstoproduceendorphinsinthebrain.Thesearenaturalchemicalswhichdiminishbothstressandpain.Thereisalsosomefacttosuggestthatlaughterhelpsthebody’simmunesystem,thatis,thesystemwhichfightsinfection.Inanexperiment,onegroupofstudentswatchedafunnyvideowhileanothergroupofstudentsservedasthecontrolgroup----inotherwords,agroupwithwhichtocomparethefirstgroup.Doctorscheckedthebloodofthestudentsinbothgroupsandfoundthatthepeopleinthegroupthatwatchthevideohadanincreaseintheactivityoftheirwhitebloodcells,thatis,thecellswhichfightinfection.Asaresultofthesediscoveries,somedoctorsandpsychiatristsintheUnitedStatesnowholdlaughterclinics,inwhichtheytrytoimprovetheirpatients’conditionbyencouragingthemtolaugh.Theyhavefoundthateveniftheirpatientsdonotreallyfeellikelaughing,makingthemsmileisenoughtoproducebeneficialeffectssimilartothosecausedbylaughter.1、Itcanbelearntfromthepassagethatlaughtercan_______.A．makepeoplefeelyoungerB．changepeople’shabitsC．improvepeopleshealthD．makepeoplelovetheirlives2、Smilingcanproduce____.A．moreeffectsthanlaughterB．thesameeffectsaslaughterC．lesseffectsonthehumanbodyD．noeffectsonthehumanbody3、Themainideaofthispassageisthat______.A．thereareseveralwaysofstudyingthebenefitsoflaughterB．laughterandphysicalexercisehavethesameeffectsonhumanbodyC．thedoctorsshouldlearnhowtomakepeoplelaughD．testsshowthatlaughtercanproducebeneficialeffectsonhumanbody25．（10分）Theyear3700，Earthisfartoohotforanyhumantocallithome．Onthisplanetatleast，manisnothingmorethanamemory-ifthereisanythinglefttorememberthe"wiseman"．Butwhataboutourwisdom-willanyofitsurviveus？Theconventionalanswerisno．Knowledgerequiresaknower，andtherewillbenoknowingmindsaroundthen．Butifinformationsurvives，perhapsinbooksorharddrives，maybetheknowledgeisn'tquitedeadbutdormant（休眠），readytobecomealivewiththehelpofothermindsthatdevelopovertimeorcometovisitEarthinthedistantfuture．Atfirstsight，thatseemstobereasonable：afterall，wehavedonesimilarthingswithpastknowledge．Forexample，wesavedanancientcomputerfromashipdestroyedatseaoffthesoutherncoastofGreece，andsucceededinfindingthemeaningofEgyptianhieroglyphics（象形文字）．Carefulworkcanbringpreviouslylostwisdombacktolife．However，thekeypointisthatthereisacertainculturalcontinuitywiththoseancienttimesthatallowsustoreasonandmakeprogressinthedark：weknowwearedealingwiththelegacy（遗赠）ofotherhumans．Withoutthatlink，thesurvivalofobjectsandrawdatadoesn'tguaranteethesurvivalofknowledge．Andalackofcontinuityinlanguagewithanyfutureintelligencewouldbeabarrier．Knowledgeiscloselyconnectedwithlanguage．Whenalanguagediesout，wecanlosesystemsofreasoningthattheycontain．Ifthat'slost，thenitcan'tberecovered．Allthismeansthatothermindsmightnotbeabletofullymakehumanknowledgealivewhenwearegone．Itisbettertoconcentrateonnotdyingoutinthefirstplace．1、WhatisthemainpurposeofParagraph1？______A．Topresentaninterestingidea．B．Tostateaproblemofthefuture．C．Toinformusoftheearthin3700．D．Tointroducethetopicofthetext．2、Whatdothewords"similarthings"inParagraph3probablyreferto？______A．Developingtheminds．B．Rememberingthewiseman．C．Makinglostwisdomaliveagain．D．Learningfromtheancientcivilization．3、Whatplaysthekeypartingettingculturalcontinuityaccordingtothetext？______A．Language．B．Intelligence．C．Knowledge．D．Information．4、Whatcanbethebesttitleforthetext？______A．Canhumanbeingsliveon？B．Willourwisdomsurviveus？C．HowwecanprotectourcultureD．Whattheearthwillbelikeinthefuture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）Iwasatthepostofficeearlythatmorning,hopingtobeinandoutinashortwhile.Yet,I1myselfstandinginaqueuethatwentallthewayintothehallway.Ihadneverseensomanypeoplethereonaweekday.Itseemedsomeonemighthavemadeanannouncement,2customerstocarryasmanypackagesastheycould.Ialsoneededtohavemyownpackage3Thequeuemovedveryslowly.Mypatience4andIgotannoyed.Thelongerittook,theangrierIbecame.WhenIgottothecounterfinally,Ifinishedmy5quicklyandbriefly,andthenwalkedpastthequeuethatwasnowextendingpastthefrontdoor.“Excuseme,”Isaid,tryingnottobetoopushy.Severalpeoplehadtomove6tomakeroomformetogettothe7.Isteppedout,8abouttheserviceconditions.ThinkingIwasgoingtobelateformydentistappointment,I9intotheparkinglot.Awomanwascomingacrossthelotinmy10Shewaswalkingwithdetermination,andeachstepsoundedvery11Inoticedthatshelookedasifshecouldbreathefire.Itstoppedmeinmytracks.HadIlookedlikethat?Herbodylanguagesaidthatshewashavinga12day.Myangermeltedaway.IwishedIcouldwrapherina13butIwasastranger.SoIdidwhatIcouldinaminute14shehurriedpastme－Ismiled.Inasecondeverythingchanged.Shewasastonished,thensomewhat15Thenherfacesoftenedandhershoulders16Isawhertakeadeepbreath.Herpaceslowedandshesmiledbackatmeaswepassedeachother.Icontinuedtosmileallthewaytomycar.Wow,it’samazing17asimplesmilecando.Fromthenon,Ibecameawareofpeople’s18andmyown,thewayweshowourfeelings.NowIusethat19everydaytoletit20methatwhenfacingtheworld,Icantryasmile.1、A．found B．disliked C．kept D．avoided2、A．hoping B．welcoming C．requiring D．ordering3、A．paid B．received C．weighed D．bought4、A．diedout B．fadedout C．burstout D．ranout5、A．business B．duty C．turn D．part6、A．on B．about C．in D．aside7、A．counter B．office C．exit D．car8、A．talking B．complaining C．worrying D．hearing9、A．headed B．looked C．pulled D．turned10、A．way B．time C．direction D．course11、A．slow B．stable C．light D．heavy12、A．rough B．dull C．smooth D．bright13、A．smile B．hug C．bag D．touch14、A．until B．though C．before D．since15、A．excited B．frightened C．cheered D．confused16、A．trembled B．raised C．relaxed D．tightened17、A．what B．that C．how D．when18、A．appearances B．reactions C．behaviors D．expressions19、A．treatment B．awareness C．conclusion D．achievement20、A．remind B．warn C．convince D．tell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）Readthepassageandfillintheblankswithproperwordsortheproperformsofthegivenwords.TwentythousandleaguesundertheseaisaclassicsciencefictionnovelbyFrenchwriterJulesVerne.ThenoveltellstheclassicstoryofCaptainNemoandhissubmarineNautilusasisseenfromthepointofviewofProfessorPierreAronnax,whoiscommissioned（委托）tofindtheseamonsterresponsibleforsinkingships.Shipsofseveralnationsspota(n)1．(mystery)seamonster,whichisconsideredtobeagiantnarwhal(独角鲸).TheUSgovernmentgathersanexpedition(探险队)inNewYorktofindanddestroythemonster.ProfessorPierreAronnax,aFrenchmarinebiologist(海洋生物学家),2．happenstobeinNewYorkatthetime,receivesalast-minute3．(invite)tojointheexpedition,whichheaccepts.CanadianwhalerNedLandandAronnax’s4．(faith)servantConseilarealsobroughtaboard.Theshipfindsthemonsterafteralongsearchandthenattacksthebeast,5．damagestheship’srudder(舵).Thethreepeoplethenjumpintothewaterandgraspthe“hideofthecreature”,whichtheyfind,totheirsurprise,tobeasubmarine(潜艇)veryfaraheadofitstime.Theyarequicklycaptured(俘获)andbroughtinsidethesubmarine,wheretheymeetits6．(create)andcommander,CaptainNemo.Therestofthestoryfollowstheadventuresofthepeopleaboardthesubmarine,theNautilus,7．(build)insecrecyandnowroams(漫游)theseasfreefromanyland-basedgovernment.Nemoexplainsthathissubmarineis8．(electric)powered.Theyvisitmanyplacesundertheocean;somearereal-lifeplaces,othersarefictional.Thetravelersalsousedivingsuitstohuntsharksandothermarinelifewithair-gunsandhaveanunderwaterfuneral(葬礼)foracrewmemberwhodies9．anaccidentoccursunderunknownconditionsinsidetheNautilus.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短文。短文中共有10处错误，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（∧），并在此符号下面写出该加的词。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。Ilikeridingmybike.Thoughitisnotverynew,butitismybestfriend.Ifindveryconvenienttogoanywherewithabike.Ridinggivesmenotonlyexercisesbutalsopleasure.Iusemybikemostinsummerwhentheweatheriswarmanddry.Itcanbeveryunpleasantinwinterthatitiscoldandwindisblowingheavily.Itcanalsobeverydangerously.OfcourseIwillbeverycarefulinmybike.Infact,accidentsarenottheonlyproblem.OnedayIwenttoschoolandcomebacktofindthefrontwheelwasmissed.Worsestill,itwasthelongwalktotherepairer'sshop.第二节书面表达（满分25分）29．（25分）假如你是中学生李华,曾在英国学习三个月，现已回国。你想联系你的英国老师Mr.Richard，但没有其联系方式。请根据以下要点给你的英国同学Jack写一封100词左右的信：1、感谢Jack对你英语学习的帮助；2、询问Mr.Richard的近况并索要其联系方式；3、邀请Jack在暑假期间来杭州做客。DearJack,_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Yours,LiHua

参考答案第一部分（共20小题，每小题1.5分，满分30分）1、A2、B3、D4、D5、A6、D7、B8、D9、B10、D11、B12、B13、A14、A15、D16、B17、A18、B19、A20、B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、1、A2、C22、1、D2、C3、A4、B23、1、C2、A3、D4、B24、Guidedogsenjoytheirworkverymuch,andtheygetalotofsatisfactionfromajobwelldone,butthereisnoroomfortypicaldogfunduringtheworkday.Games,treatsandpraisedistractthedogfromhelpingitshandlernavigate(指引方向)thecourse.Evenwhenthehandlerdoesn’tneedassistance,aguidedogonthejobistrainedtoignoredistractionsandkeepstill.Thisisbecauseaguidedogmustbeabletocometohandler’sworkplaceorbeinpublicplaceswithoutcreatingadisturbance(干扰).Whenyouseeaguidedogonthejob,itisextremelyimportantthatyourecognizethatitisatwork.Pettingortalkingtothedogspreadsitsconcentration,whichweakensthehandler’sabilitytogetaroundinhisorhersurroundings.Peopleareveryimpressedwithguidedogsandsowehaveanaturalinclination（倾向）topraisethem,butthebestthingyoucandotohelpaguidedogistoleaveitalonesothatitcanpayattentiontoitssurroundingsandmaintainitsfocusonitshandler.Guidingisverycomplicated,anditrequiresadog’sundividedattention.Whenaguidedoggetshomeattheendoftheday,however,itwillplayandsoakuppraisejustlikeanordinarypet.Guidedogsmakethedifferencebetweenworkandplaybasedontheirleadharness（牵狗用的皮带）：Whentheharnessison,theymuststaycompletelyfocused----whenitcomesoff,it’splaytime.Guidedogsworkveryhardeveryday,buttheyleadextremelyhappy