高三英语下学期模拟考试试题六

高三英语下学期模拟考试试题六

英语试题

命题人：高三英语组时间：2008年4月12

本试卷分为第I卷（选择题）和第II卷（非选择题）两部分.满分150分，用时120分钟.

第I卷（共105分）

注意事项：

1.答第I卷前，考生务必将自己的姓名、准考证号和考试科目用铅笔涂写在答题卡上。

2.每小题选出答案后，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。不能答在试卷匕

第一部分：听力（共两节，满分30分一略）

第二部分：英语知识运用（共两节，满分45分）

第一节：单项填空（共15小题：每小题1分，满分15分）

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该选项

的标号涂黑。

21.Withoutanyonethewayinthecity,hewillcertainlygetlost.

A.leadingB.beingleading

C.toleadD.led

22.Inthisexperiment,theyarewokenupseveraltimesduringthenight,andaskedto

reportwhatthey.

A.hadjustdreamingB.arejustdreaming

C.havejustbeendreamingD.hadjustdreamt

23.Ithinkthechairsarenotenough,westillneed20ones.

A.anotherB.theotherC.otherD.someother

24.Andthere,almostinthebigchair,satherlittlebrother,whoneverhadto

betoldtokeepquiet.

A.havinglostB.losingC.tobelostD.lost

25.——Canyougivemetherightanswer?

一Sorry,I.Wouldyourepeatthatquestion?

A.hadn*tlistenedB.haven*tlistened

C.don*tlistenD.wasn*tlistening

26.Youshouldhaveputthemilkintheicebox.Iexpectitundrinkableby

now.

A.becameB.hadbecome

C.hasbecomeD.becomes

27.MypainobviousthemomentIenteredtheoffice,forthefirstmanImet

askedpitifully,66Areyoufeelingallright?”

A.couldbeB.couldhavebeen

C.mustbeD.musthavebeen

28.Weonitforseveralhoursbutwehavenotyetreachedanyconclusion.

A.workB.areworking

C.havebeenworkingD.havebeenworking

29.一MayIspeaktoyourmanagerMr.Williamsatfiveo'clocktonight?

一I'msorry.Mr.Williamstoaconferencelongbeforethen.

A.willhavegoneB.hadgone

C.wouldhavegoneD.hasgone

30.HisletterwasespeciallywelcomeasIfromhimforlong.

A.haven'theardB.wouldnotheard

C.hadn5theardD.didn'theard

31.Itseemsoilfromthispipeforsometime,we'llhavetotakethemachine

aparttoputitright.

A.hadleakedB.isleaking

C.leakedD.hasbeenleaking

32.IwanttobuythatkindofclothbecauseItheclothwell.

A.havebeentold;washesB.havetold;washes

C.wastold;washedD.havebeentold;iswashed

33.一HowdoyouthinkIshouldreceivethereporter?

一youfeelabouthim,trytobepolite.

A.HowB.WhatC.WhateverD.However

34.Wewantedtogethomebeforedark,butitdidnotquiteasplanned.

A.makeoutB.turnoutC.goonD.comeup

35.Ionlyknowitisadistanceawayfromhere,butIdon'tknow

thedistanceexactlyis.

A.good,whatB.good,howfarC.far,whatD.far,howfar

第二节完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，

选出最佳选项，并在答题卡上将该项涂黑。

AboutonceamonthIhavetogotoDegfbrdformywork.OnedayIwentintoa

hoteltheretohavesomethingto36.Thewaiter37mycoatandputitina

smallroom.

AboutanhourlaterIwas38togo.Thewaiter39mycoattome.40

somethingfelloutofthepocketontothefloor.Itwasasmallwhitebox.ThenItooka

goodlookatthe41,“Oh,you'veBroughtsomeone42coat."Isaidtothewaiter.

“Itlooksverymuchlikemine,43itisquitenew,andthisisn'tmybox,either.^^

“Oh,thenI44someonehastakenyoucoatandleftthis,“saidthewaiter,“This

kindofthing45sometimes.^^

Iopenedthebox.Therewasabeautifulgoldringinit.SoIwent46tothe

policestation.

“47lostaring?"Iasked.“Yes,"saidapoliceman.6CAyoungmanwhocame

inthismorninglostaring.HelostitinLondon.^^He48theyoungman.Afew

minuteslater,themanarrived."Yes,thisismyring,“hesaid,“HowcanI49you,

sir?Yousee,Ipaidalotofmoneyfbrthisringand50__Ilostitonthetrain!,9

AfterItoldhimthe51ofthecoat,hesaid,“Youhaven'tbeenonthetrain.I

haven'tbeeninthehotel.Sohowdidmyring52inthecoat?”

“Did53sitorstandnexttoyouonthetrain?”askedthepoliceman.

“Yes,"saidtheyoungman,"ButIdon'trememberhisface.”

“Youmayrememberthiscoat,“saidthepoliceman,"Wasitlikethisone?”

“Yes,itwas,“saidtheyoungman.“Butmyfriendhere54thethief.”

Thepolicemanlaughed."55Jhesaid,"Thethiefonthetrainstoleyour

ring,andlikeourfriendhere,hewentintothehoteltogetsomefood.Onlyhedidn't

taketherightcoatawaywithhim.,,

36.A.doB.buyC.eatD.dealwith

37.A.tookB.foundC.likedD.watched

38.A.anxiousB.gladC.invitedD.ready

39.A.showedB.returnedC.broughtD.dressed

40.A.LuckilyB.SuddenlyC.ObviouslyD.Atonce

41.A.ringB.boxC.coatD.pocket

42.A.lostB.missedC.newD.else's

43.A.butB.andC.insteadD.for

44.A.knowB.wonderC.supposeD.find

45.A.appearsB.happensC.meetsD.changes

46.A.aroundB.aboutC.aheadD.over

47.A.HasanyoneB.HassheC.WhoD.Haveyou

48.A.telephonedB.rememberedC.wrotetoD.knew

49.A.returnB.thankC.findD.help

50.A.thenB.soC.yetD.however

51.A.storyB.priceC.modelD.size

52.A.comeB.putC.setD.be

53.A.heB.thethiefC.thewaiterD.anyone

54.A.discoveredB.isn'tC.hascaughtD.doesn'tknow

55.A.TmafraidnotB.YesC.NoD.Surely

第三部分：阅读理解（共20小题；每小题2分，满分40分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题

卡上将该项涂黑。

A

Iwentonlinetocheckmypaywasinmybankaccount（账户）.Tomyamazement

IdiscoveredthatnotonlyhadIbeenpaid,acompanyI'dneverworkedfbrhadalso

paidme!IknowI'dhavebeenbesidemyselfifmyownsalarywasnotinmy

account,soItriedtogetthemoneybacktotherightperson.Easiersaidthandone.

Thebankcouldn,thelpasit"wasn'tabankproblem.Thehuman-resource

departmentatthecompanythatpaidmewasunabletohelpasIdidn'thaveenough

details.Irangthebankagain.ThankfullyIhadasympatheticcalloperatorwhogave

meaname,soIagainrangthecompany,Daniel“workedfbr.

Iexpectedthebankwouldcontactmetoarrangetotakethemoneyfrommy

accountandrepayDaniel.Iheardnothingforamonthandthemoneyremainedin

myaccountwhenDanielcalled,explaininghe'dtriedtogetbackhismoneybuthad

beenunsuccessfulasneitherthebanknorhiscompanyfeltitwastheirerror.Hehad

rungtoaskifIcouldspeaktothebank,butafterchattingfbrafewminuteswe

realizedwecouldprobablyfixthisproblemourselves.

Wedecided1wouldtakethemoneyfrommyaccountandhewouldpickitup

fromme.DuetomybusyjobIwasunabletomeetDanielpersonallybutheleftmea

lovelybottleofwineinexchangefbrwhatwasrightfullyhis.Ineverhadanyintention

ofkeepingDaniePspaybutredtape（繁琐手续）madeitdifficulttodotherightthing.It

allcamedowntotwopeoplebeingabletodowhatahugebankandalargecompany

couldn'tdo——admitamistakehasoccurredandfixit.

56.Whatwastheattitudeoftheauthortowardstheextramoneyinhisbankaccount?

A.Hedidn'tknowwhattodowithit.

B.Hefeltluckytogetit.

C.Hethoughtofkeepingitforhimself.

D.Hewantedtoreturnittotherightperson.

57.Theunderlinedphrase“besidemyself“probablymeans.

A.veryfortunateB.veryangryC.reallythankfulD.atease

58.WhichofthefollowingisTRUEaccordingtothepassage?

A.Danielhadbeenrepaidwhenhecalledtheauthor.

B.Theauthorwastoblameashedidn'thaveenoughdetails.

C.Neitherthebanknorthecompanyadmittedtheirfault.

D.Danielhadthesamenameastheauthor9s.

59.Howwastheproblemsolvedintheend?

A.TheauthorandDanielsolvedtheproblemthemselves.

B.ItcostDanielalovelybottleofwinetogetbackhismoney.

C.Theauthorgavethemoneybacktothecompany.

D.Thecalloperatorofferedtosolvetheirproblem.

60.Fromthepassagewecaninferthat.

A.thebankcouldsolvetheproblemsoonandeasilywiththeredtape

B.somelargeorganizationsusuallyhavetroublesomeofficialrules

C.Danieldidn'tknowtheerrorbeforehecontactedtheauthor

D.thecompanygavethewrongaccounttothebank

B

AmongthefourskillsinlearningEnglish,whichoneoftheseisthe

“odd-man-out"?Theanswerisspeaking.Theotherthreeyoucandoaloneonyour

own.Butyoucan'treallyspeakalone!Speakingtoyourselfcanbe“dangerous”

becausemeninwhitecoatsmaycomeandtakeyouaway!

WherecanyoufindpeopletospeakEnglish?Andhowcanyoupractisespeaking

whenyouarealone?

AtschoolIfyoupaytogotoalanguageschool,youshouldusetheopportunityto

speak.Ifyourteacherasksyoutospeakinpairsorgroupswithotherstudents,tryto

sayasmuchaspossible.Don'tworryaboutyourmistakes.Justspeak!

ConversationClubsManycitiesaroundtheworldhaveconversationclubswhere

peoplecanexchangeonelanguageforanother.Lookinyourlocalnewspapertofinda

conversationclubnearyou.Theyareusuallyfreealthoughsomemaychargeasmall

entrancefee.

ShoppingEvenifyoudon'twanttobuyanything,youcanaskquestionsabout

productsthatinterestyouinashop."Howmuchdoesthiscost?”"CanIpayby

cheque?^^Oftenyoucanstartarealconversation-anditcostsyounothing!

CafeandBarsThereareoftenAmerican,Britain,IrishandAustralianbarsin

manylargecities.Ifyoucanfindone.You'llprobablymeetmanypeoplespeaking

Englishasafirstorsecondlanguage.

LanguageisallaroundyouEverywhereyougo,youfindlanguage.Shopnames,

streetnames,advertisements,notices,andcarnumbers•••Whenyouwalkdownthe

street,practisereadingthewordsandnumbersthatyousee.Saythemtoyourself.It's

notexactlyaconversation,butitwillhelpyouto“think“inEnglish.Butdon'tspeak

tooloudl

SongsandVideoRepeatthewordsofanEnglish-languagesongsingingwiththe

musicuntilitbecomesautomatic.It'sgoodpracticefbryourmemoryandforthe

mouthmusclesthatyouneedfbrEnglish.

Aboveall,speakasmuchaspossible!Makeasmanymistakesaspossible!When

youknowthatyouhavemadeamistake,youknowthatyouhavemadeprogress!

61.Whatmighthappenifyouspeaktoyourselfloudlyinpublic?

A.Thepolicewilltakeyouawayandpunishyou.

B.Thedoctorswillforceyoutostayinhospital.

C.Youwillhavetopaytoescapebeingpunished.

D.Youwillbeforbiddentobememberoftheclub.

62.InwhichplacescanyoulearnEnglishNOTfreeofcharge?

A.Atschool,inconversationclubsandcafeandbars.

B.Atschool,inshopsandcafebars.

C.Inconversationclubs,shops,songsandvideo.

D.Inconversationclubsandinthestreets.

63.Whydoesthewritersay“Makeasmanymistakesaspossible^^Because

A.everyonewillmakemistakesinlearningEnglish.

B.everyonewillmeetpeoplespeakingEnglishwithsomemistakes.

C.makingmistakesisamustinmakingprogressinlearningEnglish.

D.makingmistakescanmakeonerealizetheimportanceofspeaking.

64.Accordingtothepassage,whichwayisNOTlikelytobeacceptedbyEnglish

beginners?

A.Recitepoemsloudlyalongtheriverside.

B.ListentosomeEnglishfashionsongsandvideo.

C.FindanEnglishmantospeakEnglishwith.

D.Inclass,trytopractiseingroupsofpairs.

c

Thenexttimeyoutryfbrahigh-rankingpost,youcouldletyourpossibleboss

listentoarecommendingphonecall"made"byUSPresidentGeorgeWBushor

BritishPrimeMinisterTonyBlair.

Ofcourse,neitherofthemcouldreallydothatfbryou-youwouldjust“borrow”

theirvoices.

AT&Tlabswillstartsellingspeechsoftwarethatitsaysissogoodat

reproducingthesoundsofahumanvoicethatitcanrecreatevoicesandevenbringthe

voicesoflong-deadfamouspeoplebacktolife.

Thesoftware,whichturnsprintedtextintospeech,makesitpossiblefora

companytouserecordingsofaperson'svoicetosaythingsthatthepersonnever

actuallysaid.

Possiblecustomersfbrthesoftware,whichispricedinthethousandsofdollars,

includetelephonecallcenters,companiesthatmakesoftwarethatreadsdigitalfiles

aloud,andmakersofautomatedvoicedevices（装置）.Theadvancesraiseseveral

problems.Who,fbrexample,ownstherightstoafamousperson'svoice?（Some

expertsevenbelievethatnewcontractswillbedrawnthatincludevoice-licensing

clauses.）

Andalthoughscientistssaythetechnologyisnotyetgoodenoughtocommit

fraud（假冒），wouldthesynthesized（合成的）voicesatlastbeabletotrickpeopleinto

thinkingthattheyweregettingphonecallsordigitalaudiorecordingsfrompeople

theyknow?

EvenMrFruchterman,oneofAT&Tlab'spossiblefirstcustomers,saidhe

wonderedwhatthenewtechnologymightbring,"Justlikeyoucan'ttrustaphotograph

anymore.Hesaid,“youwon'tbeabletotrustavoiceeither.M

65.Withthehelpofthespeechsoftware,itismostpossible.

A.toimproveafamousperson'sspeech

B.tosaywhatyouwantinanother'svoice

C.tomakeaspeechmuchmoreeasily

D.tohelpyoutofindabetterjob

66.Itthespeechsoftwarewerewidelyused,.

A.peoplewouldnolongerbelieveeachother

B・itwouldnotbenecessarytogoforaspeechbyafamousperson

C.noradioorTVbroadcasterswouldbeneeded

D.recordingofavoicealonewouldnotbetakenasaproofinthecourt

67.Accordingtothepassage,youcaninferthat.

A.thesoftwarewillturnouttobeanimmediatesuccessinthemarket

B.thegovernmentwillforbidthesaleofthesoftwareinthemarket

C.it'shardtodecidewhetherthesoftwarewillenjoypopularity

D.thesoftwarewillsoonprovetobenothingbutrubbish

68.Thepassagemainlywantsto.

A.introduceanewsoftware

B.explainthedisadvantageofanewinvention

C.advertiseanewkindofproducto

D.describethefuturemarketofanewproduct

D

WhenIaskedmydaughterwhichitemshewouldkeep;thephone,thecar,the

cooker,thecomputer,theTV,orherboyfriend,shesaid“thephone”.Personally,I

coulddowithoutthephoneentirely,whichmakesmeunusual.Becausethetelephone

ischangingourlivesmorethananyotherpieceoftechnology.

Point1Thetelephonecreatestheneedtocommunicate,inthesamewaythatmore

roadscreatemoretraffic.Mydaughtercomeshomefromschoolat4:00p.m.andthen

spendsanhouronthephonetalkingtotheverypeopleshehasbeenatschoolwithall

day.Ifthephonedidnotexist,wouldshehaveanythingtotalkabout?

Point2Themobilephonemeansthatweareneveralone.uThemobilesavedmy

saysCrystalJohnstone.ShehadanaccidentinherVolvoontheA45between

OtleyandSkipton.Trappedinside,shemanagedtomakethecallthatbroughtthe

ambulancetoherrescue.

Point3Themobileremovesoursecret.ItallowsmarketingmanagerofHaba

Deutsch,CarlNicolaisen,toringhissalesstaffallroundtheworldatanytimeofday

toaskwheretheyare,wheretheyaregoing,andhowtheirlastmeetingwent.

Point4Thetelephoneseparatesus.AntonellaBramanteinRomesays,“We

workedinseparateofficesbutIcouldseehimthroughthewindow.Itwaseasytoget

hisnumber.Weweresonear-butwedidn'tmeetfbrthefirsttwoweeks

Point5Thetelephoneallowsustoreachoutbeyondourownlives.Todaywecan

talktoseveralcompletestrangerssimultaneously(同时地)onchatlines(atleastmy

daughterdoes.Iwouldn'tknowwhattotalkabout).Wecantalkacrosstheworld.We

caneventalktoastronauts（ifyouknowany）whilethey9respacewalking.And,with

thephonelinehookeduptothecomputer,wecanaccess（存取）theInternet,the

biggestlibraryonEarth.

69.Howdoyouunderstand“Point1:Thetelephonecreatestheneedto

communicate/,,,,?

A.Peopledon'tcommunicatewithouttelephone.

B.Peoplecommunicatebecauseofthecreatingofthetelephone.

C.Peoplecommunicatemoresincetelephonehasbeencreated.

D.Peoplecommunicatemorebecauseofmoretraffic.

70.Whichofthefollowingbestshowspeople'sattitudetowardsmobilephones?

A.Mobilephoneshelppeopledealwiththeemergency.

B.Mobilephonesbringconvenienceaswelllittlesecrettopeople.

C.Mobilephonesaresoimportantandshouldbeencouraged.

D.Mobilephonesarepartofpeople'slife.

71.Thebestheadingforthepassageis.

A.PhonePowerB.KindsofPhone

C.HowtoUsePhonesD.AdvantageofPhones

E

Manypeoplebelievetheglare（炫目的光）fromsnowcausessnowblindness.Yet,

withdarkglassesornot,theyfindthemselvessufferingfromheadachesandwatering

eyes,andevensnowblindness,whenexposedtoseveralhoursof"snowlight”.

TheUnitedStatesarmyhasnowdeterminedthatglarefromsnowdoesnotcause

snowblindnessintroopsinasnow-coveredcountry.Rather,aman'seyesfrequently

findnothingtofocuson（聚集）inabroadspaceofsnow-coveredwithout-grass

land.Sohisgazecontinuallymovesandjumpsbackandforthovertheentire

landscapeinsearchofsomethingtolookat.Findingsomething,hourafterhour,the

eyesneverstopsearchingandtheeyeballsbecometiredandtheeyemusclesache.

Naturemakesupforthisdiscomfortbyproducingmoreandmorefluid（流体）

whichcoverstheeyeball.Thefluidcoverstheeyeballinincreasingquantityuntilit

makeseyesdifficulttoseedearly,andtheresultistotal,eventhoughforashorttime,

snowblindness.

ExperimentsledtheArmytoasimplemethodofovercomingthisproblem.

Scouts（侦察兵）aheadofthetroopsaretrainedtoshakesnowfromevergreenbushes,

creatingadottedlineastheycrosscompletelysnow-coveredlandscape.Eventhe

scoutsthemselvesthrowlightweight,dark-coloredobjectsaheadonwhichtheycan

fbcustoo.Themenfollowingcanthenseesomething.Theirgazeisarrested.Their

eyesfbcusonabushandhavingfoundsomethingtosee,stopsearchingthesnow

-blanketedlandscape.Byfocusingtheirattentionononeobjectatatime,themencan

crossthesnowwithoutbecominghopelesslysnowblindorlost.Inthiswaythe

problemofcrossingacontinuouswhitelandisovercome.

72.Topreventsnowblindnesscausedbythestronglightfromsnow,wearingglassesor

not.

A.dependsonwhetherthesnowiswhiteenough

B.makesnodifference

C.makesmuchdifference

D.dependsonwhetherthesnowisthick

73.Whentheeyesaretired,tearsflowout.

A.toclearthevision

B.tomaketheeyesstopsearching

C.tomakethevisionunclear

D.toproducemoreandmoreliquid

74.Snowblindnesscanbeavoided.

A.bymovingone'sgazebackandforth

B.bywalkingaheadandkeepinglookingaround

C.bymakingupforthediscomfortofone'seyes

D.byprovidingtheeyeswithsomethingtofocuson

75.Whatistheprobablemeaningoftheunderlinedpart"Theirgazeisanested^^?

A.Theygetsomethingtolookat.B.Theycanonlylookatonespot.

C.Theireyesareclear.D.Theycan'tseefreely.

姓名班级考号

密封线内不能答题

高三英语下学期模拟考试试题六

第n卷（非选择题，共35分）

注意事项：

1.第二卷共2页，用钢笔或圆珠笔直接答在试卷上;

2.答卷前将密封域内的项目填写清楚。

题号第一节第二节总分

分数

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）

此题要求改正所给短文中的错误。对标有题号的每一行作出判断：如无错误，在该行右

边横线上画一个勾（J）;如有错误（每行只有一个错误），则按下列情况改正：

此行多一个词：把多余的词用斜线（\）划掉,在该行右边横线上写出该词，并也用斜线（\）

划掉。

此行缺一个词：在缺词处加一个漏字符号（八），在该行右边横线上写出该加的词。

此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

注意：原行没有错的不要改。

DearPeter,

Thanksverymuchoninvitingmetoyourbirthday76..

partyonSunday.I'dlikeverymuchcomebut77.________

IhadanexaminationonMondaymorning.Itis78.________

averyimportantexambutIcan'taffordto79._________

failit.Fl1spendallthewholeweekendreading80._________

andprepareforit.SoPmreallysorrythat81._________

Iwon'tbeabletocomeinthistime.Hopeyou82._________

canunderstand.T11takethischancetowish83._________

youwonderfultimeonyourbirthday.Happy84._________

birthday,Peter,andmanyhappyreturnofthe85._________

day!

Yours,

LiMing

第二节书面表达（满分25分）

假设你是李华，寒假期间你准备和家人去香港迪斯尼乐园游玩。你想了解有关订票方面的具体情况，

例如：可否在网上订票？团体购票是否可以打折？可否因故取消订票？你在互联网上查到了一份门票价格表

（见下表），但还有些具体信息不明确。请给迪斯尼乐园发一封信，询问有关情况。

TicketPricesDifference?

□Regular、^^口Special

AdultsHK$295HK$350HK$350

Children

HKS210HK$250HK$250

(aged3to

Seniors

\HK$170HK$200HK$200

(65orover)

Childrenunder3?

参考词汇：取消cancel折扣discount要求：词数ioo左右；可根据内容要点适当增加细节,

以使行文连贯。注意：信的开头与结尾己给出。

DearSir/Madam,

Yours,

LiHua

高三英语下学期模拟考试试题六

英语试题参考答案

第一部分（•听力一省略）

第二部分（・21-35题为1分/每题36-55题为1.5分/每题）

21.答案：C解析：without与with一样为介词，后面接宾语和宾语补足语，该短语在句中表示条件，说明

事情还没有做，所以用不定式形式，该句子的意思是“在这个城市里没有人给他领路，他肯定会迷路。”

22.答案：C

解析：此题考杳动词的时态。本题表示“从过去某一时刻开始到现在他们一直在做梦”，应该使用现在完成

进行时。

23.答案：A解析：表示“另外20张椅子"可以用以下表达方式:another20chairs,20otherchairs,20chairs

more,20morechairs。

24.答案：D解析：该空格强调herlittlebrother身材小，坐在椅子上的时候就像被椅子淹没了一样，所以应

该填入lost,构成lostin结构作方式状语。

25.答案：D解析：此题考杳动词的时态。用wasn'tlistening表示刚才进行的动作或者持续的状态。

26.答案：C解析：此题用现在完成时表示“从过去•直延续到现在的状况”。

27.答案：D解析：此题考查动词must表示对过去发生的事情的推测，意思是“一定…；想必…”。

28.答案：C解析：本题考查动词的时态。根据but后时态，可以判断出到现在还没有得出结论，有

可能还要继续下去，所以空格句要用现在完成进行时。

29.答案：A解析：本题考查动词的时态。then指代atfiveo'clock,