2023年安徽省巢湖市成考專升本英語自考測試卷(含答案)學校:________班級:________姓名:________考號:________

一、單選題(50題)1.Theproblemwassettledtothecompleteofthem,sotheydidn‘tcomplain.

A.amazementB.satisfactionC.disappointmentD.attraction

2.

Allthestudentswenttothemagicshowyesterday.Itwasreally______A.amusinglyB.amuseC.amusingD.amused

3.Thenovelwrittenbytheauthor_______well,butfiveyearsagronoonecouldhaveimaginedhowgreatarolehe_______intheliteraryworldA.sells;wastoplay

B.selling;wasplaying

C.sold;hadplayed

D.sell;isplaying

4.CountriesthattraditionallyneverallowedforeignstudentstostayandworklikeGermanyortheUnitedKingdom—arefacingtheirownlabor______ininformationtechnologyandrelaxingtheirimmigrationlaws.

A.cutsB.shortagesC.weaknessesD.imports

5.Thisisjusttheplace______heandhiswifevisitedlastyear.

A.whereB.thatC.whenD.why

6.Notuntilthisterm______torealizehowimportantthissubjectistohisfuturecareerasadiplomat.

A.hebeganB.didhebeginC.hehasbegunD.thathehasbegun

7.Newtypewriterscostabout________priceofthesecond—handones．

A.threetimesthe

B.athreetimes

C.thethreetimes

D.threetimesa

8.Thesearchwas_______whennightcame,eventhoughthechildhadnotbeenfoundA.approvedB.acquiredC.achievedD.abandoned

9.Thankyouforthe______youdidme.tomovethesofaupstairs.

A.favorB.goodC.helpD.kindness

10.Wemust__earlyinthemorningsoastocatchthefirsttrain.

A．setup

B．setout

C．setabout

D．setaside

11.Whenwe______themuseumisnotdecided.

A.visitedB.visitC.willvisitD.visiting

12.Notuntilhelefthishome_______toknowhowimportantthefamilywasforhim.

A.didhebeginB.hadhebegunC.hebeganD.hehasbegun

13.Wecanassigntheworkto__________isreliable.

A.whoseB.whomC.whoeverD.whomever

14.Finallyhegottimeforaglance______thisreport.

A.offB.roundC.onD.at

15.—Oh,Mary!YoushoulddoyourworkinsteadofsittingherewatchingTV.—______.

A.That'snotaverygoodidea.

B.TVproducesgoodinfluenceonchildren.

C.Whatmakesyousaythat?

D.YousaidTVwaseducational.

16.NotonlyIbutalsoTomandMary______fondofcollectingstamps.

A.amB.willC.areD.have

17.-Betweenthetwopossibleplans,I‘mbound_____thesecondoneA.favouringB.tofavourC.forfavouringD.tofavouring

18.Noconclusionhasbeen______yet.

A.achievedB.reachedC.attainedD.arrived

19.Afterallthistimeyou‘dthinkhe‘dhaveforgotten，________?

A.shouldyouB.wouldn"tyouC.don"tyouD.doyou

20.She'sfainted.Throwsomewateronherfaceandshemay______.

A.comeroundB.comebackC.comeagainD.comeout

21.—TheremustbeadozenpensinthishousebutIcanneverfindonewhenIneedthem.—Keeplooking.______issuretoturnup.

A.OneB.ItC.ThatD.This

22.______yourhomeworkandmakesurethatyoudon't______anymistakes.

A.Do;doB.Make;makeC.Make;doD.Do;make

23.Sobadly______inthecaraccidentthathehadtostayinhospitalforseveralweeks.

A.didheinjureB.heinjureC.washeinjuredD.hewasinjured

24.Thesenationalparksareveryimportantforpreservingmanyanimals,whichwouldruntheriskofbecomingextinct.

A.insteadB.thereforeC.neverthelessD.otherwise

25.12．Itwasthetraining_______hehadatschool_______madehimagoodjumper．

A.what;whatB.that;thatC.what;thatD.that;had

26.Haveacigarette,______?

A.willyouB.don'tyouC.doyouD.aren'tyou

27.Myfather______mebysayingthatIcouldwininthespeechcontest,soItookpartinit.

A.discouragedB.encouragedC.preventedD.asked

28.Thebankisreportedinthelocalnewspaper,_______inbroaddaylightyesterday.

A.beingrobbed

B.havingbeenrobbed

C.tohavebeenrobbed

D.robbed

29.Itisreportedthatmanyanewhouse_______atpresentinthedisasterareaA.arebeingbuilt

B.werebeingbuilt

C.wasbeingbuilt

D.isbeingbuilt

30.______today,bewouldgettherebyFriday.

A.Wereheleave

B.Wasbeleaving

C.Werehetoleave

D.Ifheleaves

31.—What'sthechanceofthere______anelectionthisyear?—Ihavenoidea.

A.isB.tobeC.beingD.be

32.Sometimeschildrenhavetrouble______factfromfictionandmaybelievethatsuchthingsactuallyexist.

A.toseparateB.separatingC.forseparatingD.ofseparating

33.TomandJackarebothveryclever._________,Tomis____________Jack.

A.Allinall;asacleverboyas

B.Inotherwords;ascleveraboyas

C.Thatistosay;asacleverboyas

D.Inword;ascleveraboyas

34.Heistooweakto______theheavybox.

A.riseB.putC.raiseD.arise

35.Icanneverforget______thefamousactressduringhervisittoourschool．

A.havingbeenmetB.tomeetC.tohavemetD.meeting

36.Thatistheonlywaywecanimagine_______theoveruseofwaterinstudents‘bathrooms.

A.reducingB.toreduceC.reducedD.reduce

37.Letmehelpyou,______?

A.won'tyonB.willyouC.shallID.shan'tI

38.Sendmyregardstoyourwifewhenyou__________home．

A.wroteB.willwriteC.havewrittenD.write

39._____cryingsadly,heraisedhisheadandlettearsstreamdownhisfaceonpurposeA.TobeseenB.SeeingC.ToseeD.Havingseen

40.Hewasamanofstrongfeelings,______normallylayhiddendeepinsidehim.

A.itB.thatC.thoseD.which

41.Thescientistsallagreedthatrulesofphysics,______weareallfamiliar,governtheworldA.towhichB.onwhichC.whichD.withwhich

42.Iwonderhowmuch______.

A.thatcarwasB.wasthatcarC.isthatcarD.thatcaris

43.Whathedescribedasonlya______detailIthoughtwasthemostimportantpartoftheplan.

A.commonB.plainC.justD.mere

44.Iwonderedwhatdifficultyhehad_________theplan?

A.tocarryout

B.carryingout

C.carriedout

D.withcarryingout

45.Janehasbrownhair,infact,it'squitesimilarinshade______yours.

A.asB.withC.likeD.to

46.Inoticedhiseyes______,becausetheywereverylarge.

A.inparticularB.withparticularC.inspecialD.withspecial

47.--Ifyouareofferedatriptothemoon,______it?--Ofcourse.Whynot?

A.didyouaccept

B.areyougoingtoaccept

C.willyouaccept

D.wouldyouaccept

48.Theyrequiredthatallthenecessarydocuments______tothepresident'sofficebeforetheendofthismonth.

A.behanded

B.mustbehanded

C.shouldhandin

D.hadbeenhandedin

49.—ThisismynewdogHisnameisWisdom—That'sinterestingWhy______didyougivehimsuchaname?

A.intheearthB.inworldC.onearthD.ontheworld

50.—That'smewhenIgotmarried.SeewhatIlooklikenow!—Whynotgoonadiettogetinto______?

A.shapeB.formC.appearanceD.body

二、翻譯(5題)51.ThispapercoversthedevelopmentofthedistributionsysteminthesouthwestofEnglandfromnationalizationuptothepresenttime.

52.Theyoungmanofferedtotaketheoldwomantotherailwaystation.

53.Agoodcitizenshouldbeagoodparent,child,wifeandhusband.

54.因為我們的產品在國內外聲譽頗佳，所以產品需求量逐年增加。

55.Suchcrashesarethesecond-leadingcauseofdeathformigratingbirds,afterhabitat(棲息地loss,withanestimatednumberofdeathranginguptoabillionayear.

三、英譯漢(10題)56.ThoughinthecourseoftimethefirmemployedsomeofAmerica'sfinestartists,artisticexcellencecouldcertainlynotbecountedamongthefirm'srealgoals.(PassageFour)

57.Idon'tcarewhatyoudoaboutyourjob;(it'snoconcernofmine).

58.MusicisapartofthehistoryofAmerica.Itexpressestheproblemsandfeelingsofitspeople.Astheyearspass,themusicgrowsandchanges.

59.Heoftencomplainsaboutthenoisefromthebusystreet,whichinterfereswithhiswork.

60.Achildwhohashadhisconfidencereallydamagedbasicallyneedsarescueoperation.

61.Itissignificantthatnowadaysfiberisconsideredtobeanimportantpartofahealthydiet.(Passage3)

62.Nowhereintheworldareconditionsbetterforgrowingtreesthaninthe.tropics,whereyear-roundwarmthandmoistureencouragerapidgrowth.

63.Rainbowsareformedwhensunlightpassesthroughsmalldropsofwaterinthesky.

64.(Thankstoyourstupidity),welostthegame.

65.Somepeoplewillbeatalosswhattodo(incaseofafire).

四、詞匯與語法知識(10題)66.Let’saskLindatotakepartinthecontestsinceshehasa_____formusic.

A.giftB.hobbyC.presentD.desire

67.Marywishesthatshe__lawinsteadofhistorywhenshewasincollege.

A．hadstudied

B．studies

C．hasstudied

D．studied

68.Youmusttake__forgrantedthatIwillhelpyou.

A．it

B．that

C．this

D．its

69.Heworks

A．alone

B．lonely

C．lone

D．lonesome

70.7.He______backandheleftanoteforyou.A.cameB.hasbeenC.willbeD.isbeing

71.Jimisthemostintelligent，of__________

A.fourUSB.USfourC.thefourUSD.USoffour

72.Halfayearafterthewar,schoolsinthecountryreturnedto__.

A．normal

B．cultivation

C．instruction

D．education

73.Ihavenointentionof__relationswiththem.

A．breakingup

B．breakingoff

C．breakingout

D．breakingdown

74.Anyonecangetintotheclub,__heisamemberthere.

A．evenif

B．unless

C．asthat

D．solongas

75.Please___upthischairforme.It’sreallycomfortabletositon.A.putB.handC.fixD.shut

五、閱讀理解(10題)76.Youhavebeenbadlyinjuredinacaraccident.Itisnecessarytogiveyouabloodtransfusionbecauseyoulostagreatdealofbloodintheaccident.However,specialcaremustbetakeninselectingnewbloodforyou.Ifthebloodistoodifferentfromyourown,thetransfusioncouldkillyou.

Therearefourbasictypesofblood;A,B,ABandO.Asimpletestcanindicateaperson'sbloodtype.Everybodyisbornwithoneofthesefourtypesofblood.Bloodtype,likehaircolorandheight,isinheritedfromparents.

Becauseofsubstancescontainedineachtype,thefourgroupsmustbetransfusedcarefully.Basically,AandBcannotbemixed.AandBcannotreceiveAB,butABmayreceiveAorB.Ocangivetoanyothergroup,henceitisoftencalledtheuniversaldonor.Fortheoppositereason,ABsometimescalledtheuniversalrecipient.However,becausesomanyreactionscanoccurintransfusions,patientsusuallyreceiveonlysaltorplasmauntiltheirbloodcanbematchedasexactlyaspossibleinthebloodbankofahospital.Inthisway,itispossibletoavoidanybadreactionstothetransfusion.

Thereisarelationshipbetweenyourbloodtypeandyournationality.AmongEuropeansandpeopleofEuropeanancestry,about42percenthavetypeAwhile45percenthavetypeO.TherarestistypeAB.Otherraceshavedifferentpercentages.Forexample,someAmericanIndiangroupshavenearly100percenttypeO.

Agoodtitleforthispassageis______.

A.GettingBloodandPlasma

B.SpecialBloodandColors

C.HumanBloodTypes

D.TheBloodBankofaHospital

77.Thebrainworksmuchmoreefficientlywhen__.

A．bothsidesofthebrainareusedequally

B．theleftsideisfullydeveloped

C．scientistsworkonit

D．therightsideisfullydeveloped

78.Theauthorsaysthatheisanaturalistratherthanascientistprobablybecausehethinkshe________．

A.comesupwithsolutionsinamostnaturalway

B.lackssomeofthequalitiesrequiredofascientist

C.justreadsaboutotherpeople’sobservationsanddiscoveries

D.hasagreatdealoftroubledoingmentalarithmetic

79.Theartofwarhasundergonesuchchangesthat_______．

A.wenolongeruseanyFrenchwordsoftheMiddleAges

B.manywordsoncecommonarenotusedanylongerandtheyarereplacedbyItalianwords

C.FrenchmilitarytermshavedisappearedfromtheEnglishlanguage

D.manywordsoncecommonarenowonlyinhistoricaluseandtheirplaceshavebeentakenbythenewly-borrowedwords

80.OnedayIwasattheairportwaitingforatickettoNewYorkandthegirlintheticketofficesaid,"I'msorry,Ican'tsellyouaticket.Ourcomputerisdown."

"Ifyourcomputerisdown,justwritemeoutaticket."

"Ican'twriteyououtaticket.Thecomputeristheonlyoneallowedtodoso."

Ilookeddownonthecomputerandeverypassengerwasjuststandingtherestaringattheblackscreen.ThenIaskedher,"Whatdoallyoupeopledo?'

"Wegivethecomputertheinformationaboutyourtrip,andthenittellsuswhetheryoucanflywithusornot."

"Sowhenitgoesdown,yougodownwithit."

"That'sgood,sir.'

"Howlongwillthecomputerbedown?"Iwantedtoknow.

"Ihavenoidea.There'snowaywecanfindoutwithoutaskingthecomputer."

Afterthegirltoldmetheyhadnobackup(備用)computer,Isaid."Let'sforgetthecomputer.Whataboutyourplanes?They'restillflying,aren'tthey?"

"Iwouldn'tknow,"shesaid,pointingatthedarkscreen."Only'IT'knows.'It'can'ttellme.

Bythistimetherewerequiteafewpeoplestandinginlines.Thewordsoonspreadtoothertravelersthatthecomputerwasdown.Somepeoplestartedtocryandstillotherskickedtheirluggage.

Thebesttitleforthearticleis______.

A.WhentheComputerIsDown

B.Howtobuyaticket

C.TheComputeroftheAirport

D.AskingtheComputer

81.

Whatisthemainpurposeofwritingthispassage?

A.Expressingthewriter'sideathatgenetechnologywillbenefitpeople.

B.Tellingpeopletheadvantagesanddisadvantagesofgenetechnology.

C.Tellingthereadersthatgenetechnologywillnotbenefitpeople.

D.Explainingthatgenetechnologywillalsodoharmtothehumanity.

82.

Accordingtothestory,thegameofchesswasinventedby______.

A.anAmericanIndian

B.anancientIndianofficial

C.anIndianking

D.anIndianofficer

83.Didthemerchantknowwhohadtakentheumbrella?

A．Sure．

B．Notverysure．

C．Notatall．

D．Probably.

84.Whydoweusetheweathersatellitestotakepicturesoftheatmosphere?Because__________

A.theweathersatellitescandoiteasily

B.cloudsformthere

C.theweatherformsthere

D.thepicturescanforecasttheweather

85.CindyHessbeganherautomotivecareerasaDesignandDevelopmentEngineerwithChrysler,inthefallof1977.Today,sheisVice-PresidentofDaimlerChrysler,andheadoftheSmallCarPlatform.EngineeringDepartmentwhichisdirectlyresponsibleforthedesignanddevelopmentoftheNeon,DogeViper,andallfuturesmallcars.

"Manydifferentdepartmentsareinvolved,inbringingaproducttomarket,"saidHess,referringtothe2000Neon."Acompanylooksintorenewingaparticularvehiclewhenitsmarketplacedemandisgood,andtheprofitsincreaseourshareholder'svalue,"explainedHess."Welooktoourmarketresearchindeterminingwhichoptionswe'llkeepthesameordelete,andwhichoneswewanttoaddtoimproveourappeal."

NowthattheNeon2000isonthemarket,herteamwillusesurveyandresearchresultstodeterminewhichoptionpackagesworkbestfortheconsumer,andwhatimprovements,ifany,needtobemade.

Andthebestgoeson.

Hesssupervises1200engineerswhilemanagingasuccessfullifeaswifeandmother.Hersecret,shesaid,isto"alwaystrytogive150percentineverythingIdo.TheonlywayIcanreallybalancemyworkandfamilyis'bycheatingatbothends'.""Forexample,"Hesssaid,"Ialwaystakemyboystoschoolonthefirstdayoftheyear--soIcomeinalittlelate.AfewtimesayearIleaveworkforacoupleofhourstoseemysoninaplayortoattendhisswimmeet."

Likemostothersuccessfulwomenintheautoindustry,Hess'sdaybeginsearlyandendslate.Inhercase,coachingherson'sbasketballgameendssomeofHess'sdays."Occasionally,"sheadds,"IcomeintoworkontheweekendstocatchuponpaperworkandmailandhavealsobeenknowntobecalledtoworkwhileIamonvacation."

WhatisCindy'schiefresponsibilitynow?

A.Renewingpromisingcarmodels.

B.Supervisingproduction.

C.Doingmarketresearch.

D.Developingsmallcars.

六、作文(1題)86.Directions:Youaretowritein100-120wordsonthetopic

“FamilyEducation”.YoushouldbaseyourcompositionontheoutlinegiveninChinesebelow:1.

父母是孩子最好的老師；2.

父母的言行影響孩子；

參考答案

1.B

2.C所有的學生都去看了昨天的魔術表演。它太令人不可思議了。這里主要考查的是動詞的現在分詞和過去分詞的不同用法。Sth．bedoing表示某一事物令人怎么樣。Sb．bedone表示某人處于某種狀態。例：Theletteristouching．這封信令人感動。

Iammoved．我很感動。

3.A

4.B解析：cuts“裁減”；shortages“短缺”；weaknesses“弱點”；imports“進口”，故正確選項為B。

5.B

6.B解析：表示否定的副詞前置于句首，句子需要不完全倒裝，即助動詞提前。其余選項均可排除。除Notuntil外還有never，seldom，rarely，seldom，no，little，hardly，innotime等否定副詞或結構放在句首時，句子需要部分倒裝。

7.A【句子大意】新打字機的價格是二手貨的三倍。

8.D

9.A解析：favor：幫助，一般用domeafavor；good：好處；help不與do搭配：kindness：善良。故選A。

10.Bsetout意為“出發，動身”。

11.C解析：句子的前半部分是主語從句，主語從句中的謂語動詞時態應根據句意而定。

12.A

13.C

14.D

15.D解析：上句責備瑪麗應該做作業而不是坐到那兒看電視，下句是瑪麗對媽媽責備的一種辯解：“你說過電視是有教育意義的。”所以D項正確。

16.C解析：notonly…butalso連接主語時，謂語動詞根據就近原則由butalso后的成分來決定。TomandMary是兩個人，所以動詞用復數形式。

17.B

18.B解析：本題考查固定搭配的用法。當否定詞位于句前時，得出結論應用reach/achievein/arriveatconclusion，故選B。

19.B考查反義疑問句。原句應是：youwouldthinkhehadhaveforgotten…反義疑問句的規則是陳述部分是肯定式，疑問部分應是否定式。Wouldthink表示推測，疑問部分也應選擇would。選項B是正確的。【句子大意】你難道還認為他已經忘掉了，是嗎?

20.A解析：句意：她昏倒了。給她臉上澆些水，或許她會醒過來。本題考查詞組辨析。comeround：過訪，繞道而來，蘇醒過來；comeback：回來，恢復；comeagain：再說一遍，重復一遍；comeout：出來，傳出。

21.A解析：根據上文提到“findone”，故下文中也應填one，表示泛指。

22.D解析：本題考查動詞搭配。doone'shomework“做作業”；makemistakes“犯錯誤”。句意為：做作業，還要保證別犯錯誤。

23.C解析：副詞so置于句首，句子應該用倒裝語序，某人受傷用sb.beinjured來表示，故答案為C。

24.D

25.B

26.A解析：此題考查反意疑問句的用法。主句為祈使句，因此其反意疑問句用willyou。

27.B解析：encourage：鼓勵、鼓舞；discourage：使泄氣；prevent：阻止；ask：要求。根據句意只有選B。

28.C

29.D

30.C解析：本題考查倒裝虛擬語氣用法。本句是表示與將來事實相反，所以從句用wereto形式。句意為：如果他今天出發的話，他就會在星期五以前到達那里。

31.C

32.B解析：本題考查固定搭配。havetrouble(in)doingsth.“做某事有困難”。句意為：有時孩子們在分清故事和現實方面會有困難，相信故事中的事確實存在。

33.B

34.C解析：本題考查詞義的辨別。rise出現，put放下，raise提起，arise升高。

35.D解析：forgetdoingsth．忘了已做過某事。注意區別forgettodosth。忘了而沒有做某事。

36.B

37.A解析：反問疑問句的陳述部分是肯定式時，疑問部分用否定式。以letme或letus起始的反問疑問句，疑問部分用willyou或won'tyou，所以選項A是正確的。

38.D本題考查時態。

【應試指導】句意：當你寫信回家的時候，請代我向你的妻子問好。在時間狀語從句中用一般現在時代替一般將來時。

39.A

40.D解析：which修飾非限定性定語從句，指代前邊一句話。本題涉及句法知識——簡單句、并列句和復合句。例如：Hehastwodaughters.Theyaredoctors.(簡單句)Hehastwodaughtersandtheyaredoctors.(并列句)Hehastwodaughters,whoaredoctors．(復合句)

41.D

42.D解析：從句中的問句主謂不倒裝。從句的時態隨主句。我想知道那輛車的價格。

43.D解析：本題測試形容詞辨析。四個選項的意思分別是“普通的”，“清楚的”，“正義的”，“僅僅的”。根據句意，D項正確。本句大意為：他僅僅把它作為一個細節來描述，而我卻認為它是這個計劃中最重要的部分。

44.B

45.D

46.Ainparticular是固定搭配，意為“特別地”。

47.D

48.A解析：本題考虛擬語氣在名詞性從句中的用法。在“ask(advise，desire，ordersuggest，require，etc。)+the廣引導的從句中，謂語動詞應用“should+認”，should可以省去，再結合語態，故A項正確。本句大意為：他們要求所有的必要文件都必須在月底之前交到校長辦公室。

49.C

50.A解析：shape意為“(女人的)姿態，身段”；form意為“形狀，形態”；appearance意為“外表，樣子”；body意為“身體”。由題意知應選A。

51.本文闡述了英國西南部從國有化時期到目前為止的分配制度的演變。

52.那年輕人主動提出要送老婦人去火車站。

53.一個好公民應是個慈愛的家長、孝順的兒女、賢良的妻子或盡職的丈夫。一個好公民應是個慈愛的家長、孝順的兒女、賢良的妻子或盡職的丈夫。

54.Asourproductshaveagoodreputationbothathomeandabroad,theirdemandisincreasingyearbyyear.

55.繼棲息地減少之后，這種撞擊是導致遷徙鳥類死亡的第二大原因，據估計死亡數量可達十億。

56.盡管在這期間公司雇傭了一些美國最為優秀的藝術家藝術上的卓越絕不會被算作該公司的真正目標之一。盡管在這期間公司雇傭了一些美國最為優秀的藝術家，藝術上的卓越絕不會被算作該公司的真正目標之一。

57.它不關我的事它不關我的事

58.音樂是美國歷史的一個組成部分。音樂能表達美國人民的困惑和情感。隨著歲月的流逝音樂也在發展和變化。音樂是美國歷史的一個組成部分。音樂能表達美國人民的困惑和情感。隨著歲月的流逝，音樂也在發展和變化。

59.他常抱怨大街上傳來的噪音干擾了他的工作。他常抱怨大街上傳來的噪音干擾了他的工作。

60.自信心已經受到損害的孩子首先要讓其恢復自信心。自信心已經受到損害的孩子首先要讓其恢復自信心。

61.今天植物纖維被看作是健康飲食的重要組成部分這是一件有意義的事。今天植物纖維被看作是健康飲食的重要組成部分，這是一件有意義的事。

62.對于種植樹木的條件來說世界上沒有哪個地方比熱帶更好在熱帶常年的溫暖和濕潤會促使樹木快速生長。對于種植樹木的條件來說，世界上沒有哪個地方比熱帶更好，在熱帶，常年的溫暖和濕潤會促使樹木快速生長。

63.彩虹是陽光穿過天空中的小水滴時形成的。彩虹是陽光穿過天空中的小水滴時形成的。

64.由于你的愚蠢行為由于你的愚蠢行為

65.一旦失火一旦失火

66.A

67.Awish后接的賓語從句中要使用虛擬語氣。表示對過去的愿望的假設，用過去