2025屆甘肅省甘南高三第六次模擬考試英語試卷注意事項:1．答題前，考生先將自己的姓名、準考證號碼填寫清楚，將條形碼準確粘貼在條形碼區域內。2．答題時請按要求用筆。3．請按照題號順序在答題卡各題目的答題區域內作答，超出答題區域書寫的答案無效；在草稿紙、試卷上答題無效。4．作圖可先使用鉛筆畫出，確定后必須用黑色字跡的簽字筆描黑。5．保持卡面清潔，不要折暴、不要弄破、弄皺，不準使用涂改液、修正帶、刮紙刀。第一部分（共20小題，每小題1.5分，滿分30分）1．AsurveysuggeststhattheroyalweddingofPrinceWilliamandKateMiddleton_____agreatboostforBritisheconomybecausealargenumberofvisitorsareexpectedtogo.A．willbe B．hasbeen C．was D．be2．Thedrumsofwararebeatingonceagain.AstensionsrisebetweenAmericaandIran,Chinaappealstobothsidesto________.A．standby B．comealongC．stepback D．sticktogether3．Thedebatehasonlyafewmomentsthatmightbeinspiringtothosewho______thisissue.A．followed B．hadfollowed C．havebeenfollowing D．werefollowing4．Theonlineword“selfie”isgaining______andmoreandmorepeopletendtouseitnowadays.A．accessB．admissionC．controlD．currency5．ThenewlocallawinNanjingsaysparentsnotphysicallyharmyoungchildrenorexposethemtolong-termhungerasapunishment.A．can B．shallC．will D．need6．Theresearcherswhostudyjokeswanttofindout_______peoplefromdifferentnationsandculturesfindfunny.A．why B．thatC．what D．whether7．AsJohnLennononcesaid,lifeis________happenstoyouwhileyouarebusymakingotherplans.A．Which B．thatC．what D．where8．－I_______inthesamepositiontoolong.Mylegshavefallenasleep.－Shakeitalittlebeforeyougetup.A．willsit B．havesatC．amsitting D．havebeenstting9．ltwasinDecember,2018________ChairmanXiandPresidentTrumpmetinArgentina.A．when B．thatC．before D．since10．Billwasdoingalotofphysicalexercisetobuilduphis.A．abilityB．forceC．mindD．strength11．Smoking______inthekitcheninmyhouse.A．doesn’tallowB．didn’tallowC．isn’tallowedD．won’tallow12．I’mmostawfullygratefultoyou.Ican’tthinkwhatI________withoutyou.A．coulddo B．woulddoC．shouldhavedone D．musthavedone13．Nodrivingafterdrinkingisarulethateverydriver____________obeyinourcountry.A．will B．shallC．may D．can14．Lastweek,onlytwopeoplecametolookatthehouse,________wantedtobuyit.A．noneofthem B．bothofthem C．noneofwhom D．neitherofwhom15．—Whyareyousoupset?—Ihadmycomputerrepairedyesterday,butit________workagain.A．doesn’t B．didn’tC．won’t D．wouldn’t16．Checkyourpapercarefullytosee________youhavemadeanymistakes.A．what B．which C．whether D．that17．I’veheardalotaboutyou.Yougotpromoted,right?______Manythanks.A．GoodforyouB．YouaskedforitC．ThereyouareD．You’vegonetoofar18．Willyoube_____________thisevening，Mary？Thatdepends.IamafraidIwillbewithmymanager，discussingaplan.A．convenient B．suitableC．available D．efficient19．Oursocietywouldbebetteroffbutforthefactthattheeconomy________bythecurrentglobalfinancialcrisis.A．hadbeenaffected B．wereaffectedC．shouldbeaffected D．isaffected20．Theyoungman,________inheavytrafficontheway,gothomeanhourlaterthanusual.A．catching B．caught.C．havingcaught D．tobecaught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四個選項中，選出最佳選項。21．（6分）TheFirstHelloThemanfromthetelephonedepartmentgotoffthebus,andmadehiswaytotheteastall,wipingthesweatoffhishead,face,thenslippinghishandkerchiefunderhisshirttowipehisneckandback.Itwasayearagothatthephonelinehadbeeninstalled,sixmonthslatermenfromthepublicworksdepartmenthadcometoputupthephonebooth—aneatbox-likestructure,withaglasswindow,andwoodenledges,yellowincolour.Anddaysafterthat,apainterhadtakenanentiredaytocolourinbroad,blackbrushstrokes,thewords:STDBooth,localandSTDallowed.Noonecouldtellthatthelastwordhadbeenmisspelled.Besides,hehadtakentheentireday.Afterhehadacupoftea,heleft,wavingcheerfully.Andnowmonthslater,someoneelsewashereagain.Everyonewatchedthemanashesatonthebench.Noonesaidaword,andsoonthesoundofhimslurpinghisteafilledthehotafternoon.Afewleavesfell,heavyintheheat,andsometimesacarpassed,onitswaytothemaincityfartheraway.Whenthemanhadfinished,hetriedtopaybuttheteashopownerwhosatbehindhissteamingkettleandthewashedupturnedcups,wavedhimaway.“Youareourguesthere.”Sothemantookhishandkerchiefoutagainandwipedhisface.Theycrowdedaroundhimasheshuthimselfupinthephonebooth.Whenthechildrenpressedtheirnoseagainsttheglass,heshooedthemaway,ashetookoutashinyblacksoonchangedtoanexcitedyellastheysawhimdialanumber,pressingafingerintotheringeddialerofthephoneandlettingitgoallthewayinahalf-circle.Awhilelater,theyhearhimsayintothemouthpiece,“Hello.”“Hello,”thechildrenaroundtheboothtookupthecry,theteashopownerbrokeintoasmileandthemenwaitingforabussmiledandsaidhellotoeachother.Thesadhu(印度的僧人)whosatunderthebanyantreenoddedwisely.Asthesoundcarried,morehelloswereheard.Thewomenwinnowinggraingiggledastheytriedthewordtentatively,theshepherdsfeedingtheirflockscalledouttotheirsheep,laughingastheyusedtheword.“It’sabigoccasion,”saidtheheadman,inanawed(敬畏的)voice.“Itis.”agreedthosearoundhim.Thetelephonemanemergedandhandedoverasmallchitofpapertotheheadman.“Thisisthetelephonenumber.”Theheadmanlookedatitrespectfullyasifitwereamantra(符咒).Theothersaroundhimreadoutthenumbersslowly,digit-by-digit.Thetelephonemanwasnowtootiredtonoticethecheeringaroundhim.Heknewhehadtowaitlongbeforethebustotakehimbackarrived.Ashesippedhissecondcupoftea,herememberedsomethingelse.“Oh,youcan’tstartusingthephonenow.Theministerwillcomenextmonthandinaugurateit.”Noonesaidaword.Noonewassurprise.Theyhadwaitedsolong;amonthmoredidnotreallymatter.1、Inthestory,fittingaworkingtelephonebooth.A．wasaprocessthathadalreadytaken12monthsB．wasinthechargeoftheheadmanC．wasfinishedmorethanayearagoD．wasanartisticchallengeforalocalpainter2、Amisspelledwordonthebooth.A．wasajokeharedbythepainterandthelocalpeopleB．madethepaintermisshisteabreakC．wentunnoticedbythelocalpeopleD．kepteveryoneoccupiedforanentireday3、Whenthemanfromthetelephonedepartmentarrived.A．thehotafternoonwasfilledwithquietexpectationB．therewasasuddenrushofactivityinthevillageC．hewasgreetedlikearegularcustomerD．helearnedaboutthevillagewhilehavinganicedrink4、Whatcanbeinferredfromthestory?A．Themanfromthetelephonedepartmenthadamentallydemandingjob.B．Onlytheministerhadtheauthoritytomakethefirstcall.C．Itwasadistantvillagefreefrommoderntechnology.D．Fewofthelocalchildrenwenttoschoolforeducation.5、Theexamplesofthechildren,theteashopowner,themenwaitingforthebus,thewomenandtheshepherdsaregiventoillustrate.A．thelocalpeople’scuriosityforthenewthingB．theignoranceofthelocalpeopleC．thelocalpeople’senthusiasmforEnglishlearningD．thepopularityofthemanfromthetelephonedepartment6、Whatwordscanbeusedtobestdescribethelocalpeople?A．Innocentandcooperative.B．Friendlyandrespectful.C．Patientandcompetent.D．Independentandadmirable.22．（8分）JoannewasstuckinatrafficjamincentralBirminghamat5:30,andat6:30shewasexpectedtobechairingameetingofthetennisclub.Atlast,thetrafficwasmoving.Sheswungquicklyracingtoherhouse.Assheopenedthedoor,shenearlytrippedoverSheba.“Hey,Sheba,”shesaid,“I’vegotnotimeforyounow,butI’lltakeyououtassoonasIgetbackfromtennisclub.”ThenshenoticedShebaseemedtobecoughingorchoking.Obviously,shecouldhardlybreathe.Immediately,Joannerealizedshewouldhavetotakehertothevet(獸醫).Whenshegotthere,thevetwasjustabouttoclosefortheday.SeeingthestateofSheba,Dr.Sternebroughtherquicklyintohisoffice.“Listen,doctor,I’mreallyinarushtogettoameeting-canIleaveherwithyou,andgoandgetchanged?I’llbebackintenminutestopickherup,andthenI’lltakeherontothemeetingwithme.IsthatOK?”“Sure,”saidthedoctor.Joannemadethequicktripbacktoherhouseinacoupleofminutes.Asshewasoncemoreenteringthehallway,thephonebythedoorbegantoring.“ThisisDr.Sterne,”saidananxiousvoice.“Iwantyoutogetoutofthathouseimmediately,”saidthedoctor’svoice.“I’mcomingroundfightaway,andthepolicewillbethereanytimenow.Waitoutside!”Atthatmoment,apolicecarscreechedtoastopoutsidethehouse.Twopolicemengotoutandranintothehouse.Joannewasbynowcompletelyconfusedandveryfrightened.Thenthedoctorarrived.“Where’sSheba?IssheOK?”shoutedJoanne.“She’sfree,Joanne.Itookoutthethingwhichwaschokingher,andshe’sOKnow.”Justthen,thetwopolicemenreappearedfromthehouse,half-carryingawhite-facedman,whocouldhardlywalk.Therewasbloodalloverhim.“MyGod,”saidJoanne,“howdidhegetinthere?Andhowdidyouknowhewasthere?”“Ithinkhemustbeaburglar,”saidthedoctor.“IknewhewastherebecausewhenIfinallyremovedwhatwasstuckinSheba’sthroat;itturnedouttobethreehumanfingers.”1、WhatwasJoannesupposedtodoat6:30?A．Towalkherdog. B．Toseeherdoctor.C．Toattendaclubmeeting. D．Toplaytenniswithherfriends.2、Joannewantedtogetbacktoherhomeagain____________.A．todressupforthemeetingB．tophonethepolicestationC．tocatchthebadlyhurtburglarD．towaitforherdogtobecured3、Fromthepassage,wecaninferthat____________.A．ShebafoughtagainsttheburglarB．thepolicefoundtheburglarhadbrokeninC．JoannehadplannedtotakeherdogtothemeetingD．thedoctorperformedadifficultoperationonthedog4、Inthispassage,thewriterintendstotellusthatthedogis____________.A．clever B．friendlyC．frightening D．devoted23．（8分）TheWorld’sGreatestBookstoresCafebreriaElPéndulo,MexicoCity,MexicoPartcafe,partcoffeehouse,partbarandpartbookstore,CafebreriaElPénduloislocatedinMexicoCity.Bookslinetheshelvesfromtheceilingtothefloor,andliveplantsaddlotsofgreen.Thestoreisnamedforahugependulum(鐘擺)hangingfromitsceiling.Stanfords,LondonandBristol,EnglandEstablishedin1853,Stanfordsboaststhatitofferstheworld'slargestselectionoftravelbooksandmaps.Italsosellstravelaccessories.LookfortheenormousNationalGeographicMapoftheWorldintheflagshipstoreinLondon;itwascreatedin2003tocelebratethestore’s150thbirthday.Rizzoli,NewYorkCity,NewYorkForalmostahalfcentury,RizzolihasbeenconsideredasoneofthebestindependentbookstoresintheUS.Itspecializesinillustrated(有插圖的)booksaboutthewaypeopleworksandlives,suchasfashion,photography,decorationdesign,cookingandarchitecture.Takeamasterclassinflowerdesign,attendalectureandbooksigning,ordropinforacookingshoworbookalaunchparty.ElAteneoGrandSplendid,BuenosAires,ArgentinaOftendescribedasoneoftheworld’smostbeautifulbookstores,ElAteneoishousedinanhistorictheatermuchasitwaswhenthetheateropenedin1919.Aftercustomersbrowsetheshelves,theycandrinkcoffeeandlistentomusicfromastagehiddeninredcurtainswheretangodancersonceperformed.Whilemostofthestore’sbooksareinSpanish,theyareavailableinarangeofsubjects.1、WhatisCafebreriaElPendulonotedfor?A．Thelargershelves. B．Itsuniquesymbol.C．Thetastycoffee. D．Itsinterestinglocation.2、Whichbookstoreisthebestchoicefortravellerstobuyatouristhandbook?A．Rizzoli. B．Stanfords.C．ElAteneoGrandSplendid. D．CafebreriaElPendulo.3、WhatsubjectarebooksinRizzoliabout?A．History. B．Cartoon. C．Lifestyle. D．Literature.24．（8分）IvisitedCopenhagenforthefirsttimelastEaster.Asastudent，I’malwaysstrappedforcash，soIassumedIcouldonlyaffordtobreathetheair—butluckilyeverythingaboutCopenhagenisbreathtaking.IwasstayinginanAirbnb,andrentedabikesoIcouldcovermoreground.OneofthefirstplacesIvisitedwastheRundetaarn,or“roundtower”builtinthe17thcenturyasanastronomicalobservatory.Ithasanequestrianstaircase(awidesetofstairsbigenoughforhorsestouse)thatwentonandon.AsIwasgoingup,Istoppedtovisitthetower’slibraryhall.Atthetop,there’saglassplatformthatgivesaview80-footstraightdown,aswellasabellloft.Luckily,theviewsoverCopenhagenfromthetopwerewellworththeclimb.Aftercomingdown,IhikeduptotheKastelletFortresstoseethefamousLittleMermaidstatue.Takingaphotowithherwasalmostimpossiblewithallthetouristscrowdingaround—butsittingthereandhearingthelappingwavesofthedeepblueBalticSea,waitingforthesuntoset,wasanunforgettableandcalmingexperience.Thenextday,IvisitedtheGlyptotekartmuseum,exploringthegrandexhibits.IlookedintothemarbleeyesofmanyRomangods,andwalkeddowndimlylitstaircasestoseemummiesfromEgypt.BeforeIunwillinglyboardedthetrainbacktotheairport,ItoldmyselfthatImustvisitagain—toexperiencethethrillsofTivoliGardens,trymoreofthestreetfoodandeverythingelsefromthisamazingcity.1、Whydidtheauthorrentabike?A．Becauseshelovedtorideabike.B．Becauseshedidn’taffordtorentacar.C．Becauseshefoundnowheretorentothervehicles.D．Becauseshewantedtoseeasmanyattractionsaspossible.2、WhatdidtheauthorfinddifficultattheKastelletFortress?A．Findingasittingplace.B．Waitingforthesuntoset.C．Listeningtothesoundofwaves.D．Havingaphototakenwithastatue.3、Whichofthefollowingdidn’ttheauthorvisit?A．Rundetaarn.B．TivoliGardens.C．Glyptotekartmuseum.D．LittleMermaidStatue.4、Whatistheauthor’spurposeinwritingthetext?A．Torememberaholiday.B．Tointroduceanewattraction.C．Tosharehertravelexperience.D．ToshowherloveofCopenhagen.25．（10分）JOHANNESBURG—Theysaycatshaveninelives.NowaChinesetoad(蟾蜍)hasjoinedthatclubofcleversurvivors.SouthAfricansareshockedattheenduranceofatoadthatgottrappedinacargoshipmentfromChinatoCapeTown,afterjumpingintoaporcelaincandlestick(燭臺)thatwasmadethere.SouthAfricanofficialsreportedlyplannedtoputdownthecreature,fearingitwouldcauseharmasaninvasivespeciesifitwereletgointhewild.Butthetoadgotalast-minutepardon.MangoAirlines,aSouthAfricanairline,transportedthetoadonFridaytoJohannesburgfordeliverytoananimalshelter,afterofficialsdecidedtofindawaytoletthetoadlive.Thetwo-hourflightwasabreezecomparedtothetripfromChina,alongwayofmanyweeksandthousandsofkilometersacrosstheIndianOcean.AirlinespokesmanHeinKaisersaidthetoadgot“first-classtreatment”,sittinginatransparentplasticcontainerwithescortBrettGlasby,ananimalwelfareinspector.Therewasevenaceremony,inwhichthetoad’sboardingpasswashandedtoGlasby.“Hewasthestaroftheshowontheflight,”Kaisersaidoftheamphibious(兩棲的)passenger.“Ithinkeverypassengerstoppedtohavealook.”OnlandinginJohannesburg,thetoadwasbroughtoutofitscontainerforacelebrity-stylephotoshoot.Observerssaidthebrowntoadseemedlikeacoolcustomer.ItbelongstotheAsianToadspecies,whichbreedsduringthemonsoon(季風)season.ItisbelievedtohavesurvivedthetripfromChinabyhardeningitsskintopreventitfromdryingout,andalsobyslowingitsbreathingandheartrate—methodsthathelpthespeciessurviveintimesofdrought.“We’vehadsnakesinimportedtimberandscorpions(蝎子)infruit.Wewerecalledbecausethetoadwasrightinsidethecandlestick,andwehadtobreakittogetitout”Glasby,theinspector,toldTheStar,aSouthAfricannewspaper.1、Whatisthepassagemainlyabout?A．Asiantoadscan’tgetusedtothelifeinSouthAfrica.B．SouthAfricaignorestheprotectionofanimals.C．AnAsiantoadgetsanewhomeinSouthAfrica.D．WorkersshippedatoadtoSouthAfricaonpurpose.2、Ifthetoadisreleasedintothewild,________.A．itwillmakethelocalsfeelshockedB．itwillloseitslifeinthewildC．itmightfleeintoanothercountryD．itmightharmthenativespecies3、ThetoadwasabletoarriveinSouthAfricaalive________.A．becauseitformedhardskintoprotectitselfB．becauseitescapedallattacksandhuntsC．becauseitusedtostopitsbreathinwinterD．becauseitwasluckytobegivenachance4、Itcanbeinferredfromthepassagethat________.A．acandlestickisthebestplaceforatoadB．droughtsmaketoadslivelongerC．sometimesanimalsaretransportedaccidentallyD．noonehasseensuchabigtoadinAfrica第三部分語言知識運用（共兩節）第一節（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四個選項中，選出可以填入空白處的最佳選項．26．（30分）AfewyearsagoIwasworkingparttimeatalocalicecreamshop.While1anelderlywomanahotfudgesundae(圣代冰淇淋)atthedrive-throughwindow,Icouldn’thelp2hercar,becauseIwasjustinchesfromherface.I3thatshehadabasketofwhatappearedtobepurpletomatoes.AsIgaveherthesundae,Isaid,“Thosetomatoeslookdelicious!What4arethey?”Shesmiledso5thatIthoughtshewasabouttolaugh,butinsteadshereplied.“Here,havesome!”WithinsecondsIhada6ofpurpletomatoes.“Oh,no,you7givemeany!”Isaid.Thosetomatoeslookedexpensive.“Here,havemore,”she8,andIhadsixoftheprettiesttomatoesIhad9seen.Iweaklytriedtosay,“Really,youdidn’thavetogivemeany,10Iappreciateit.Thewomansmiledagainand11,“Theybelongtoararetype.Sotheyaren’tliketheone,yougetinthegrocerystore.Ihopeyouenjoythem.”Isaid“Thankyou”again,andshe12off.Abouttwoweekslater,my13attheicecreamstoresentmeamessage:“Iwanttoletyouknowthatyourgardenerdroppedoffaboxof14foryou.Pleasecomeandgetthem.”15,Itexted,“Mygardener?”Thatnightmybossshowedmethe16.Iopeneditandinsideweretomatoes,cucumbers,andgreenbeans.Iwas17,feelinggreatlysurprised.Whywasthiswomanbeingso18?Ineversawheragain,buttothisdayheractofkindnessinspiresmeto19mygardenplantswithanyonewholikesorneedsthem.20,allIexpectisjusta“Thankyou”.Betteryet,payitforwardandbesomeoneelse’ssecretgardener.1、A．leavingB．handingC．awardingD．buying2、A．askingforB．thinkingofC．waitingforD．lookinginto3、A．pretendedB．noticedC．expectedD．understood4、A．colorB．kindC．shapeD．number5、A．widelyB．slightlyC．weaklyD．shyly6、A．dozenB．basketC．handfulD．variety7、A．needn’tB．can’tC．mustn’tD．won’t8、A．promisedB．agreedC．commentedD．insisted9、A．evenB．alsoC．yetD．ever10、A．ifB．butC．forD．so11、A．leftB．explainedC．pausedD．suggested12、A．gotB．fellC．spedD．walked13、A．friendB．customerC．assistantD．boss14、A．grainsB．vegetablesC．fruitsD．flowers15、A．ExcitedB．PuzzledC．UpsetD．Angry16、A．storeB．gardenC．giftD．box17、A．angryB．happyC．nervousD．sorry18、A．generousB．humorousC．seriousD．outgoing19、A．growB．manageC．shareD．sell20、A．InreturnB．InadvanceC．InadditionD．Inparticular第二節（每小題1.5分，滿分15分）閱讀下面材料，在空白處填入1個適當的單詞或括號內單詞的正確形式。27．（15分）Macwascyclingalongaroad.Withaheavycampbag,hewasn'tmovingveryfast.Suddenlyheheardloudbreathingbehindhim.1．(look)tohisside,hewas2．(terrify)tofinditwasn'tadogbutawolfthatwasrunningafterhim.Hereached3．thesprayinthebag.Withonehandonthehandlebar,hefiredit.Abrightredcolorcoveredthewolfanditfellbackshakingitshead.Butaminute4．(late)itwasbyhissideagain.Hesprayed5．secondtime,thewolffallingbackagainbutonlytoquicklyrestart6．(it)attack.Thewolfwasgettingcloser.Macwavedandyelledatpassing7．(motorist)butmeanwhilerodehard.Heknewclearlyhemustbecarefulnottoslowdown.8．(fortunate),PaulandBeckyweredrivingalongthesameroadwhentheyspottedthescene.TheydrovetowardMac.Whenthecarwasinfrontofhim,Macjumpedoffthebikeanddashedforthebackdoor.Paul9．(open)thedoorsoastoletMacin.Itwasquiteawhile10．Macbecamecalmandthankedthem.第四部分寫作（共兩節）第一節短文改錯（滿分10分）28．（10分）假定類高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10處語言錯誤，每句中最多有兩處。每處錯誤僅涉及一個單詞的增加、刪除或修改。增加：在缺詞處加一個漏字符號（A）,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：在錯的詞下劃一橫線，并在該詞下面寫出修改后的詞。注意：1、每處錯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）不計分。LastMonday,ithitmethatmybelovedgrandmotherbirthdaywasaroundthecorner、Idecidedtomakeheranuniquepresent、Withouttheslightesthesitation,Ithrewmeintocreatingthispricelessalbum、Iturnedonthecomputer,carefullyselectedsomephotos,addedupsomedecorations,anddesignedeachpagescarefully、Eventually,analbumofloveborn、Lookedatmyworkwithsatisfaction,Icouldn’thelpimagininghowdelightedlymygrandmawouldbe、Soon,thebigdayarrived、Atthebirthdayparty,IpresentedthealbumtoGrandma、Themomentshesawthespecialgift,shehugsmeaffectionately,tearsrollinginhereyes,whatmademyparentssmilegenuinelyaswell、第二節書面表達（滿分25分）29．（25分）面對繁重的高中學習任務，高中生對參加學校活動有著不同的看法，請以TakingPartinSchoolActivities為題，用英文寫一篇100詞左右的短文，著重介紹兩種不同的觀點和態度，最后談談你的個人看法。△很多學生持擁護態度，認為我們不能死讀書，參加學校活動可以豐富學校生活，學到實踐知識……△不少學生漠不關心，認為學生的任務就是學習，學生應該充分利用時間學習。注意：1.首段已給出，不計入總詞數。2.適當分段，使用恰當的連接詞，過渡