甘肅武山一中2025屆英語高三上期末監(jiān)測試題含解析

甘肅武山一中2025屆英語高三上期末監(jiān)測試題考生須知：1．全卷分選擇題和非選擇題兩部分，全部在答題紙上作答。選擇題必須用2B鉛筆填涂；非選擇題的答案必須用黑色字跡的鋼筆或答字筆寫在“答題紙”相應(yīng)位置上。2．請用黑色字跡的鋼筆或答字筆在“答題紙”上先填寫姓名和準(zhǔn)考證號。3．保持卡面清潔，不要折疊，不要弄破、弄皺，在草稿紙、試題卷上答題無效。第一部分（共20小題，每小題1.5分，滿分30分）1．Cellphonesarenowwidelyusedinourdailylives，________________itpossibleforustotalktoanyoneeasily.A．tomake B．madeC．make D．making2．IhavenodoubtthatAnnawill________it,butIwonderwhethersheisreallyreadyenough.A．digB．hitC．makeD．lift3．Maybehereallyshoulddomoreexercisesfromnowon.____,Ihopehecouldgetoversoon.A．Somehow B．Somewhat C．Anyway D．Anywhere4．______theeffortsmadebythepolice,afantasticperformancewillbeputontomorrow.A．InplaceofB．InsearchofC．InchargeofD．Inpraiseof5．________terrible,themedicinewasthrownawaybythechild.A．Tasted B．TastingC．Totaste D．Beingtasted6．Therearevariousthingsonsale,soyoucanchoose______interestsyou.A．whoever B．nomatterwhoC．whatever D．nomatterwhat7．Facingtheglobalfinancialcrisis,theChinesegovernmenthastakenmanymeasures________people'slifetodealwithit.A．related B．relatedtoC．relating D．relatingto8．Wecametothestation________alltheway,only________thetrainhadjustleft.A．running,told B．torun,tellingC．torun,tobetold D．running,tobetold9．—Doyouknowourtownatall?—Surely,thisisthethirdtimeI________here.A．cameB．comeC．havecomeD．a(chǎn)mcoming10．Ihaveoftenthoughtitwouldbeablessingifeachhumanbeing_______blindanddeafforafewdaysatsometimeinhislife.A．hasbeenstricken B．werestrickenC．hadbeen D．wouldbe11．IkeepthepicturewhereIcanseeiteveryday,remindsmeofthedaysinmyhometown.A．that B．whichC．who D．when12．Sometimesitseemstobothertheteacher______allthestudentsarebeingtooquiet.A．how B．whatC．that D．where13．Taughtinamoreprofessionalway,you_________theswimmingskillmuchbetter.A．mightmaster B．wouldhavemasteredC．canhavemastered D．couldmaster14．Kimberly______anarticle,sodon’tdisturbher.A．wouldwrite B．writes C．wrote D．iswriting15．Paintingfromstillimagesleadstoalossofsensitivity,whichis_____toanartist.A．a(chǎn)bsolute B．urgent C．especial D．vital16．Inthisarticle,youneedtobackupgeneralstatementswith________examples.A．specific B．permanentC．a(chǎn)bstract D．universal17．moreabouttheplacewhereyoulive,andyouwillshouldermoreresponsibilitytoprotectitA．LearningB．TolearnC．LearnD．Learned18．—Ihavebeendecoratingtheapartmentrecently,socanyoulendmesomemoney?—Sorry,allmymoneyhasgonetothestockmarket._________.A．I’drathernot. B．Iamintheblack.C．Iwouldn’tbetonit. D．Iamalittleshy.19．Yourletterwillgetattention!Theyknowyou’reexpectingtheanswer.A．careful B．common C．instant D．general20．Itwasintheremotemountainareas______Ispentthegapyear______Ilearnedhowtoworkwithagroupofstrangersandhowtolookaftermyself.A．where;that B．when;thatC．where;when D．that;where第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。21．（6分）Findingyourfeetinanewtowncanbehard,especiallyifyou’recoveredinfuranddon’tspeakthelanguage.ButforpetsnewtoMarlborough,helpisathand.MarlboroughSPCAandtheRailwayCafé,inBlenheim,havejoinedforcestohelpwelcomepetsandtheirpeopletotheregionwithafortnightlymorningtea.Theyhopethemorningteaswillgettailsandtongueswaggingaswellasgivingadviceonhowtomakethemovesmoother.RailwayCaféownerLeanneHarriscameupwiththeinnovative（創(chuàng)新的）planasawaytohelpwelcomepeopletothearea.LeannemovedtoMarlboroughfromAucklandtwoyearsagoandsaidsheinitiallystruggledtofindfriendsandfeelpartofthecommunity.“ComingfromAucklandIthoughtpeoplewouldopentheirdoorsandthattherewouldbeneighbourscallingroundwithcake.Iexpectedpeopletocometomeand,ofcourse,itwasn’tlikethat.Ididgetlonely.“IhopetosavenewcomershavingtowaitaslongasIdidtofeelpartofitall.Iwouldliketowelcomethemtothetown.”Freeplattersofsandwiches,cakesandothergoodieswillbeonoffer,forthepeople,whiletherewillbespecialhandmadeyoghurtandbananatreatsforthedogs.ThemorningteaswilltakeplaceinthecoveredareaatthebackofthepopularcafébesidetherailwaystationoffGroveRd.LeannesaidshewashappytodevotebothhertimeandeffortintogivingbacktothecommunityandfelttheventurewasagreatfitwiththeSPCA．“Volunteeringissuchanamazingthingtodoanditchangedthingsformecompletely,andImetsomeamazingpeoplewithsimilarinterests.”SPCAOpShopmanagerKarinaGreenall,originallyfromtheUnitedKingdom,saidshealsowantedtohelp.“Icangiveadviceonhowtoresettlepets,thebestparkstogoto,wherethebestwalksareandwherethevetcentersareintown.”Therewillbevolunteeringopportunitiestooforpeoplewheretheycanhelpoutandhopefullymakefriendstoo.”1、HowwillMarlboroughSPCAandtheRailwayCaféhelpnewpets?A．Byofferingmorningteas.B．Bygivingadvicetothem.C．Bycommunicationwiththem.D．Byprovidingaccommodationtothem.2、WhatwasLeanne’splanoriginallyintendedfor?A．Savinganimals.B．Helpingnewcomers.C．Makingmorefriends.D．Expandingherbusiness.3、WhathadLeanneexpectedwhenshefirstcametoMarlborough?A．Tobeleftalone.B．Tostruggleforaliving.C．Tobeinvitedtodinner.D．Tofeelpartofthecommunity.4、WhatcanbelearntaboutSPCAOpShopmanagerKarinaGreenall?A．SheoftenmissestheUnitedKingdom.B．ShetakesinterestintheRailwayCafé.C．Sheisenthusiasticaboutresettlingpets.D．Shehasorganizedthevoluntaryevents.22．（8分）Startingfrom1710，apublicland，theNewHopeareahasafamoushistory.Itbeganasatradingpost.Bythe1940s，NewHope'snameintheartshadbecomelegendaryformanywritersofplays，directorsandactorswhotraveledthroughitsbusystreetsonweekendsandholidays.Inresponsetothisculturalenvironment，businessmanandwriterD．F.WhippledecidedtosetuptheNewHopefilmfestivalin2009.Whipplegatheredagroupofartistswhosharedhislovefordiscoveringandencouragingindependentfilmmakers，manyofwhomwillshowtheirfilmsatitsexhibitions.Thefestival'sdirectorswelcomeyoutooursiteandwehopeyou’lljoinusattheexhibitions.Tickets;AdvanceticketsgoonsaleonJune15andticketswillbegotatthevenues（場地，地點(diǎn)）foranyshow.VisitthefreeonlineOfficialGuidefordetailsonvenues，schedulesandprices.Togetticketsinadvance，pleasefollowtheseeasysteps：Pickfilms---CheckoutourfreeonlineOfficialGuideforthefull2017time-tablethroughthislink：OfficialGuide.VisitBrownPaperTickets.com--Thefestival'sofficialticketvendor（自動售票機(jī)）forthewholeyearisrunning.Ticketsareavailablebyshowname.Advanceticketsalesendatmidnightbeforeeachshow.Ifyoumissit，youcanstilltrytogetticketsat，thedoor.Ticketpricesatthedoorare$12forvisitors，$10forstudentsandseniors（65+）and$6formatinees（午后場）.Tofindshows，checkoutthescheduleinourOfficialGuide.QuestionsorcommentsmaybedirectedtotheFestivalbyemailinginquires@.1、WhatdoweknowabouttheNewHopearea？A．Itwaseverabusinesscenter.B．Itisfamousforisnaturalscenery.C．Itwasfirstusedasthebaseofarts.D．Ithasahistoryoflessthan100years.2、D．F.WhipplechosetosetupafilmfestivalintheNewHopeareabecauseof______________.A．itsbusystreets B．itsmodernsocietyC．itsancientbuilding D．itsculturalenvironment3、Wherecanyougettheticketsinadvance？A．Atthevenuesaftermidnight. B．FromtheonlineOfficialGuide.C．FromBrownPaperT. D．Throughinquires@.4、Howmuchwilltheypayifastudentwenttoseeafilmwithhisparentsbeforemidnight？A．$36 B．$18C．$34 D．$285、Wheredoesthepassagecomefrom？A．a(chǎn)magazine B．a(chǎn)newspaperC．a(chǎn)traveljournal D．a(chǎn)website23．（8分）BusToursinWashingtonDCTheBlossomsTourInWashingtonDCDuration:3hours$56.99BESTWAYtoExperiencetheCherryBlossoms!EachyearfrommidMarchtomidApril,seethebeautifulCherryBlossomsinWashingtonDCandgetgreatphotosbecauseyou’llbeledtoallthebestspotsbythebestguides.TheannualspringbloominDCisamagicaltimeandthistourpromisestoprovidetheverybesttouropportunityforyou!TheLightsNightTourinWashingtonDCDuration:3hours$56.33Highest-ratedNightTourinDC!TheONLYDCNightTourwheretheTourGuidesHOPOFFwithyouateachstopandtellyouabouteachmonumentandattracton.HOPaboardtheTheLightsNightTour!ThebesttimetotakeatourofWashingtonDCisatnight.TheBestMinibusTourinWashingtonDCDuration:3hours$46.92SeeallthekeyatractionsDChastoofferina3-hourformat.Youwilllearnallaboutthehistoryandtrivia(瑣事)thatsurroundsWashingtonandvisitthemajormonumentsandattractionsDChastooffer.PleaseNote:Ratesforthistourvarybydayoftheweek.Whenyouchooseyourspecificdateontheavailabilitycalendar,theratesforthatdatewillbedisplayed.BestMountVernon&ArlingtonCemeteryTourfromWashingtonDCDuration:6hours$78.96SeeArlingtonCemetery,OldTownAlexandriaandGeorgeWashington’sMountVernonEstateonthissmallgroupbustourfromWashingtonDC．YourtourguidewillaccompanyyouthroughMountVernon,tellingyouaboutalloftheatractionsthereandthehistoryofGeorgeWashington’shomeonthePotomacRiver.1、WhichdatesuitsTheBlossomsTourmost?A．July4. B．August15.C．March27. D．October8.2、WhatisspecialaboutTheBestMinibusTour?A．Itspriceisnotfixed. B．Thebesttimetotakeitisatnight.C．Thetourguideaccompaniesyou. D．Youcangetgreatphotosofcherry.3、WhichtourwouldofferyouachancetolearnaboutGeorgeWashington’shome?A．TheBlossomsTour. B．TheLightsNightTour.C．TbeBestMinibusTour. D．BestMountVermon&ArlingtonCemeteryTour.24．（8分）Connectingwithpeoplehasbecomesomucheasierwithadvancingtechnology.Tasksthatoncerequiredapostagestamporcarrierpigeonarenowassimpleastappinganameorevenafaceonyourscreen,andyou’reconnected.Butalsoeasierisunconsciouslygettingcaughtupinadilemmabyviolatingcertainnewrulesforcommunicating.Abigoneforsome:Don’tcalluntilyou’vetextedtoconfirmit’sOKtocall.Butthat’sjustthebeginning.“I’musuallyprettymildandnotmuchbothersme,”saidMarkAngielle,a29-year-oldofficemanagerfromWhitePlains,NewYork.Buttheonethingthathehatesmorethananythingelseinlifeistheterribleone-wordmessage—“K.”“Attheveryleastreplywith,Gotit.”hesaid“Atleastgivemeafewwordshere.You’renotthatbusy.”Therearehundreds,perhapseventhousands,ofotherswhohavetakenLosocialmediatoexpresstheirdistasteforpeoplewhodon’tfollowtheunwrittenrulesofdigitalcommunication.“Theserulesaresimplyanewdisplayofaphenomenonwe’veseeninthepast,”saidJamesIvory,professorofcommunicationaVirginiaTech.Inthesamewaythatgenerationsandsmallgroupsoffriendshavetheirownslangandcustoms,internetculturehasgivenbirthtotechnology-dependentbeingsthathavetheirownuniquesetofroutine.Butnoteveryonegetsthepoint.Unlikelanguage,digitalcommunicationcanbefilledwithambiguousclues(線索、跡象)thatthepersonontheotherendofthecall,textoremailmayormaynoteasilyunderstand.“Assoonaspeoplearen’ttalkingfacetoface,thefirstthingthatgetslostissomeoftherichnessofthebodylanguage,”Ivorysaid,“Peopleimmediatelyfillthatgapbyusingemoji(表情符號)tosumupafeelinginseconds.“There'sgreatpotentialfordanger,”Ivorywarned.“What'sconsideredpoliteinoneformmightbeinappropriateorrudeinanotheroccasion.”1、WhatcanyouinferaboutMarkfromParagraph2?A．Heisabusinessmanwithabadtemper.B．Hecomplainsaboutsocialmanners.C．Hecan’tbearone-wordmessages.D．Hedislikeabusybusinesslife.2、Accordingtothetext,whichofthefollowingbreakstherulesforcommunicating?A．Johnsays“Igotit.”tohisbossfacetoface.B．JimcallsBillwithoutconfirminginadvance.C．MarytextsLilytomakesureifshecancallher.D．Jacksends“Thanksalot”tohisbusinessfriends.3、Whymaypeoplemisunderstandeachotherduringdigitalcommunication?A．Emojicannotsumupfeelings.B．Peopleusetheirownslangandcustoms.C．Therearelargequantitiesofwrittenrules.D．Peoplegetswrongmessageswithoutclearclues.4、Whatarepeopleexpectedtodoafterreadingtiepassage?A．Toobeytheirowndigitalcommunicationrules.B．Tobeawareofrulesduringdigitalcommunication.C．Touseadvancingtechnologyevenwithdisadvantages.D．Tokeeppacewithdigitalcommunicationdevelopment.25．（10分）Areyousometimesalittletiredandsleepyintheearlyafternoon?Manypeoplefeelthiswayafterlunch.Theymaythinkthateatinglunchisthecauseofthesleepiness.Or,insummer,theymaythinkitistheheat.However,therealreasonliesinsidetheirbodies.Atthattime–abouteighthoursafteryouwakeup–yourbodytemperaturegoesdown.Thisiswhatmakesyouslowdownandfeelsleepy.Scientistshavetestedsleephabitsinexperimentswheretherewasnonightorday.Thepeopleintheseexperimentsalmostalwaysfollowedasimilarsleepingpattern.Theysleptforonelongperiodandthenforoneshortperiodabouteighthourslater.Inmanypartsoftheworld,peopletakenaps(小睡)inthemiddleoftheday.Thisisespeciallytrueinwarmerclimates,wheretheheatmakesworkdifficultintheearlyafternoon.Researchersarenowsayingthatnapsaregoodforeveryoneinanyclimate.Adailynapgivesoneamorerestedbodyandmindandthereforeisgoodforhealthingeneral.Incountrieswherenapsaretraditional,peopleoftensufferlessfromproblemsuchasheartdisease.Manyworkingpeople,unfortunately,havenotimetotakenaps.Thoughdoctorsmayadvisetakingnaps,employersdonotallowit!Ifyoudohavethechance,however,hereareafewtipsaboutmakingthemostofyournap.Rememberthatthebesttimetotakeanapisabouteighthoursafteryougetup.Ashortsleeptoolateinthedaymayonlymakeyoufeelmoretiredandsleepyafterward.Thiscanalsohappenifyousleepfortoolong.Ifyoudonothaveenoughtime,tryashortnap—eventenminutesofsleepcanbehelpful.1、Whydopeoplefeelsleepyintheearlyafternoonaccordingtothetext?A．Theyeattoomuchforlunch.B．Theysleeptoolittleatnight.C．Theirbodytemperaturebecomeslower.D．Theweatherbecomesalotwarmer.2、Ifyougetupat6:30am,whatisthebesttimeforyoutotakeanap?A．About12:30pm. B．About1:30pm.C．About2:30pm. D．About3:30pm.3、Whatwouldbethebesttitleforthetext?A．JustforaRest B．AllforaNapC．ASpecialSleepPattern. D．TakingNapsinWarmerClimate.第三部分語言知識運(yùn)用（共兩節(jié)）第一節(jié)（每小題1.5分，滿分30分）閱讀下面短文，從短文后各題所給的A、B、C和D四個(gè)選項(xiàng)中，選出可以填入空白處的最佳選項(xiàng)．26．（30分）Thepurposeofaletterofapplication(求職信)istohelpyouto"sell"yourself.Itshouldstate1thejobyouwant,andshouldtellwhatyourabilitiesareandwhatyouhave2Itshouldbesimple,human,personalandbriefwithout3outanynecessaryfacts.Inwritingaletterofapplication,keepin4thatthethingsapossibleemployerismost5towanttoknowaboutareyourqualifications(條件),yourachievementsandyouraims.Theopeningparagraphisperhapsthemostimportantpart6thefirstfewsentencesfailto7thereader’sattention,therestofthelettermaynotbe8atall.Trytokeyyouropeningremarkstotheneedsorinterestsoftheemployernot9yourownneedordesires.Forexample,insteadofbeginningwith“Isawyour10ofyouradvertisingduringthepastsixmonths”or“Ihavemadeasurveyinmyneighborhoodtofindouthowmanyhousewives11yourproductandwhytheylikeit.”Tryto12generalities(概述).Beclearaboutthekindofjobforwhichyouarenow13Collegegraduateslookingfortheirfirstpositionsoftenask“WhatcanI14has.”Theansweristhateverythingyouhaveeverdoneis15Itisimportanttowriteagoodstrongclosingforyourletter16istoenclose(內(nèi)附)astamped,self-addressedenvelopewithyourletter.Thatmakesit17forapossibleemployertogetintouchwithyou.1、A．easilyB．carefullyC．obviouslyD．clearly2、A．doneB．foundC．knownD．heard3、A．sendingB．leavingC．takingD．picking4、A．brainB．sightC．mindD．order5、A．probableB．possibleC．a(chǎn)bleD．likely6、A．WhileB．AlthoughC．IfD．As7、A．winB．payC．showD．fix8、A．keptB．readC．writtenD．continued9、A．fromB．forC．intoD．to10、A．a(chǎn)rticleB．reportC．a(chǎn)dvertisementD．introduction11、A．watchB．studyC．searchD．discussion12、A．useB．makeC．sellD．change13、A．gainB．rememberC．protectD．a(chǎn)void14、A．a(chǎn)pplyingB．losingC．preparingD．fitting15、A．offerB．supplyC．provideD．mean16、A．workerB．managerC．ownerD．beginner17、A．successB．experienceC．practiceD．development18、A．StateB．AskC．MakeD．Get19、A．resultB．ideaC．promiseD．decision20、A．easierB．happierC．cheaperD．safer第二節(jié)（每小題1.5分，滿分15分）閱讀下面材料，在空白處填入1個(gè)適當(dāng)?shù)膯卧~或括號內(nèi)單詞的正確形式。27．（15分）Therewasaproudteaktreeintheforest.Hewastallandstrong.There1．(be)asmallherb（香草）nexttothetree.Theteaktreesaid,"Iamveryhandsomeandstrong.Noonecandefeatme.”When2．(hear)this,theherbreplied,"Dearfriend,toomuchprideis3．(harm).Eventhestrongwillfalloneday."Theteakignoredtheherb’swords.Hecontinuedtopraise4．(he).Astrongwindblew.Theteakstood5．(firm).Evenwhenitrained,theteakstoodstrongbyspreadingitsleaves.Duringthesetimes,6．herbbowedlow.Theteakmadefun7．theherb.Oneday,therewasastormintheforest.Theherbbowedlow.Asusual,theteakdidnotwanttobow.Thestormkeptgrowing8．(strong).Theteakcouldnolongerbearit.Hefelthisstrengthgivingway.Hetriedhisbest9．(stand)upright,butintheend,hefelldown.Thatwastheendoftheproudtree.10．everythingwascalmagain,theherbstoodstraight.Helookedaround.Hesawtheproudteakfallen.第四部分寫作（共兩節(jié)）第一節(jié)短文改錯(cuò)（滿分10分）28．（10分）假定英語課上老師要求同桌之間交換修改作文，請你修改你同桌寫的以下作文。文中共有l(wèi)O處語言錯(cuò)誤，每句中最多有兩處，每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。增加：在缺詞處加一個(gè)漏字符號（八），并在其下面寫出該加的詞。刪除：把多余的詞用斜線(＼)劃掉。修改：在錯(cuò)的詞下劃一橫線，并在該詞下面寫出修改后酌詞。注意：1．每處錯(cuò)誤及其修改均僅限一詞；2、只允許修改10處，多者（從第11處起）不計(jì)分。LastSunday,Iaccompaniedtwoofmyforeignfriend,TomandMary,totravelaroundBeijing.WebeganwithtouringSouthLuoguLane(南鑼鼓巷),whichisknownfortheirtraditionalChinesearchitecture.IknowaplaceverywellsoIactedastheirtourguide!Forlunch,wehadtriedsomeBeijingfriedsaucenoodles(炸醬面).Tominparticularthoughtthattheytasteddeliciously.Afterlunch,wewenttoHouhaiskateonthefrozenlake.MarywasskatingbeautifullywhileTomcalledforhelp.Wefinishedthedaywithgoingshop,andbothTomandMaryboughtsomepaper-cutslikesouvenirs.ItwasafantasticdaybutIhopetheywillcomebackagainsoon.第二節(jié)書面表達(dá)（滿分25分）29．（25分）假定你是某國際學(xué)校的學(xué)生李華。你校最近正在舉行“最美學(xué)生”評選活動,請按下列要求給組委會寫一封信,推薦你身邊的一位同學(xué)參選。內(nèi)容主要包括:1.你認(rèn)為“最美學(xué)生”應(yīng)具有的品質(zhì);2.你推薦這位同學(xué)的理由。注意:1.詞數(shù)80左右2.可以適當(dāng)增加細(xì)節(jié),以使行文連貫。________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

參考答案第一部分（共20小題，每小題1.5分，滿分30分）1、D2、C3、C4、D5、B6、C7、B8、D9、C10、B11、B12、C13、B14、D15、D16、A17、C18、D19、C20、B第二部分閱讀理解（滿分40分）閱讀下列短文，從每題所給的A、B、C、D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。21、Memorandum（備忘錄）To:MembersofalldepartmentsFrom:AnnetteDerringerSubject:Year-endpartyDate:November26Thisisjustaquicknotetoletyouallknowthearrangementsfornextmonth’syear-endparty.Asyouknow,thepartywillbeheldattheGreenValeCountryClub,whichwehavereservedbetween6:00pmand10:00pmontheeveningofDecember21st.1havereceivedrepliesfromalmostallofyouconfirmingattendance,butifyouhavenotletmeknowyet,pleasedosointhenextdayortwo.Ticketsforallemployeeshavebeencoveredbythecompany.ThemanagerofGreenValehasaskedmetoexplainoneortwothingstothoseofyouwhohavenotbeentherebefore.Basically,thereisenoughparkingspaceforonly100vehicles,sohewouldliketoaskthoseofyouplanningtodrivetotrycarpool（拼車）asmuchaspossible.Also,thenumberoflockersavailableissmall,soguestsshouldtrytokeepbelongingstoa,minimum.Thanksinadvance,AnnetteTo:AnnetteDerringeraderringer@From:KypeBerwickSubject:Year-endpartyDate:November28Annette,Iwillbeabletoattendtheyear-endpartyattheGreenValeCountryClubonDecember21stalthoughIdonotthinkIwillbeabletoarrivebefore7:30.Iwaswonderingifitwouldalsobepossibletobringacoupleofguests.Iknowitisabit