2022年宜春市英語(yǔ)統(tǒng)招專升本一輪練習(xí)題【帶答案】學(xué)校:________班級(jí):________姓名:________考號(hào):________

一、閱讀理解(30題)1.James’father______.

A.divorcedhiswife

B.likedtodrink

C.desertedhisfamily

D.BandC

2.Whatwillhappentoresidentsiftheydon’tcomplywiththelaw?

A.Theywillhavetogotoworkinafactory．

B.Theywillhavetopayafine．

C.Theywillgotojajlforninetydays．

D.Thegovernmentwilltakeawaytheirwoodstove

3.ThefirstUnitedStateslawntennisgamewasplayed____.

A.atNahantB.ontheStatenIslandC.inBostonD.inNewYork

4.

第37題Attheageof16，heworkedfor______．

A.hisbrotherB.himselfC.hisfatherD.someoneelse

5.Inmanycitiespedestriansarenowmuchsaferbecause______.

A.notrafficisallowedonsomestreets

B.trafficiscomputer-controlled

C.carsmoveveryslowly

D.onlyonewaystreetsareopentotraffic

6.Whichsizetableclothwouldyoubuyforacirculartablewhichis30incheshishand45inchesindiameter?

A.45-inchround．

B.50-inchround

C.70-inchround

D.120-inchround

7.Inthefifthparagraph,whydidthewritersayshewasdreaming?

A.Someoneofferedtotakeherbackhome.

B.Ared-hairedmancametoseeher.

C.Sheheardsomeonecallhername.

D.Herwalletwasfoundinagarbagetruck.

8.38.Accordingtothepassage,theaverageIQis______.A.85B.100C.125D.unknown

9.Siltandheavyrun-offfromfarmsinNorthCarolinawerecausedby______.

A.HurricanesIreneandFloyd

B.HurricanesFloydandCarla

C.aneruptionfromavolcano

D.deforestationoftrees

10."Somepeopletrytogetitbymakingmoney."Theunderlined"it"means______.

A.happiness

B.theprecedingsentence

C.money

D.suchthingsashouse,farmsandcars

11.Whatisthemainideaofthestory?

A.Ialwayshavedifficultychoosingbirthdaypresents.

B.OnceIgaveTomabottleofchampagneasabirthdaypresent.

C.ThepresentIgaveTomwasagreatsurprisetohim.

D.Tomysurprise,somethingfunnyhappenedinTom’sbirthdayparty.

12.Youshouldtake______steps(步驟)beforeyoubuyacomputer.

A.fiveB.sixC.fourD.seven

13.Fromthearticle,thereaderlearnsthatLeeWildeslives______.

A.inAfrica

B.inasmallapartment

C.inalargehouse

D.inahospital

14.Ifyourunoutofmoneywhenmakingalongdistancecall______.

A.youcantelltheoneonthephoneyourphonenumberandwaittobecalledback

B.youcantelltheoneonthephoneyournumber,holdonandwaittobecalledback

C.youmusthangupandstopmakinganycalls

D.youhavetorunoutandborrowsomemoney

15.Whichofthefollowingstatementsistrueaccordingtothepassage?查看材料

A.Students"likesandinterestsarethestandardsofevaluationofateacher"slecturing.

B.Studentsareactuallycapableofjudgingtheclassaccomplishmentsoflectures.

C.Studentsareacademicallycapableofmakingcommentsontheskillsofteaching.

D.Studentsarenottogiveassessmentsofateacher"slecturing.

16.Thetextisabout______.

A.afamousItalianphysician

B.afamousItalianinventor

C.afamousItalianelectrician

D.afamousItaliannovelist

17.Toaculturaland,socialscholar,Washington'steapotisvaluablebecause______.

A.agreatmanlikeWashingtoncouldaffordexpensiveteapot

B.itisbeautifulandmuchstudiedbyprivatecollectors

C.ittellspeoplesomethingabouthowWashingtonlived

D.itistypicalofpotterymakinginWashington'stime

18.Whatmessagecanwegetfromthetwophotosinthemagazine?______.

A.Gorillasareman'sclosefriends.

B.Bothmanandthegorillaneedtobesaved.

C.Younggorillasareaslovelyashumanbabies.

D.Manshouldlivepeacefullywiththegorilla.

19.Ifwehadtorelyononlyfivesensesforsurvival,wewouldbeinverysadshapeindeed.Wewouldntknowupfromdown.Wewouldntknowwhentoeatordrink.Wewouldntknowwhatourmusclesweredoingorwhatpositionourlimbswerein.Wewouldntknowwhenourbodywasdamagedbecausewewouldntfeelpain.Wemightfreezetodeathwithoutevenashiver,oroverheatwithoutadropofsweat.Thefivesenses—touch,taste,smell,hearingandsight—respondonlytostimulationfromtheoutsideworld,buttheinsideworldofourbodiesmustalsoreceiveandrespondtoimportantmessages.Ourinternalsenseskeepusaliveandenableustouseourexternalsenses.

Ineffect,theinternalsensestellourbrainshowtorunourbodies.Hungerorthirstregistersinapartofthebraincalledthehypothalamus(丘腦下部),whenalackoffoodchemicalsaredetectedintheblood.Anotherinternalsensethatcontrolsourbalanceismaintainedbythreefluid-filledloopsintheinnerear.Changesinpositionandgravityaffectthemotionofthisliquidandcausechangesinthebrain.Asensecalledkinesthesia(肌肉運(yùn)動(dòng)知覺)letsusknowtherelativepositionsofpartsofourbodies.Evenourbreathingiscausedbyasensethatidentifiesanoverabundanceofcarbondioxideandalackofoxygenintheblood.Noonehasbeenabletocountthenumberofinternalsenses.Thepresenceofdelicateinternalsensesshowsjusthowmarvelouslycomplexwehumanbeingsare.

Thispassagedealmostlywiththe______.

A.internalsenses

B.senseofbalance

C.fivesenses

D.brain"sfunction

20.Sundaydinneris______.

A.adinnerintheevening

B.abignoonmeal

C.abigmealonSunday

D.asupperonSunday

21.Thestudents'problemthebankknowsaboutis______.

A.theneedforaregularstatement

B.theneedforadviceonmoneymatters

C.astudenthasalottodo

D.astudent'sincomeisnothighenough

22.Whichofthefollowingstatementsistrueaccordingtothepassage?

A.Studentsareacademicallycapableofmakingcommentsontheskillsofteaching.

B.Studentsareactuallycapableofjudgingtheclassaccomplishmentsoflectures.

C.Students'likesandinterestsarethestandardsofevaluationofateacher'slecturing.

D.Studentsarenottogiveassessmentsofateacher'slecturing.

23.Barredowlsliketolivein______.

A.thenortheasternUnitedStates

B.Canada

C.deep,densewoodsofWashington

D.warmclimates

24.

第53題WhydotheAmericandoctorsthinkofusinglaserlighttotreatheartdisease?

A.Beeauselaserlightisquitepowerful．

B.Becauselaserlightispenetrating．

C.Becauselaserlightcandestroytheblockingmaterialsinhuman’sartery．

D.Becauselaserlightcantravelthroughthehumanbody．

25.WhenRulonwontheOlympics,______.A.A.someofhisfamilywatching

B.noneofhisfamilycouldaffordtogo

C.thepeopleofAltonhadnotelevisionstowatch

D.hisfamilywasworkingonthefarm

26.Whichcityhadthehighesttemperatureonthisday?

A.ElPaso.B.Dallas.C.Dayton.D.Greatfalls.

27.WhenWilliamsbeganworkingonhisbook,he______.

A.waspaid$35,000

B.learnedtopaint

C.hadalreadyburiedthetreasure

D.didnotknowwhatthestorywouldbeabout

28.Theword"random"inLine2,Para.2isclosestinmeaningto______.

A.unpredictableB.perplexingC.independentD.abnormal

29.WhenIamaboss,Iwillnolongerhavetosearchforthisthing.Thissentencemeans

A.whenIhavepower,Iwillhavehappiness

B.beingabossismoreimportantthanfeelinghappy

C.whenIbecomeaboss,Iwillneversearchforhappiness

D.bossandthisthingmeanthesametobossandI

30.52.WhydidtheearlyPilgrimswanttosharetheirfeastwiththeIndians?A.Toshowfriendship.B.Toaskfortheirhelpinthecomingwinter.C.SotheycouldeatsomeIndianbreadpuddings.D.Totrytoteachthemtogrowcrops.

二、完型填空(20題)31.【C7】

A.setB.machineC.radioD.program

32.33.A.AmericanB.BritishC.standardD.enough

33.24.A.passoutB.takeawayC.backupD.stirup

34.【B3】

A.beforeB.afterC.duringD.so

35.(80)

A.alreadyB.seldomC.neverD.yet

36.【C13】

A.booksB.showsC.authorsD.awards

37.wearenotafraidof

9

lateanymore，A.beB.tobeC.beingD.stayed

38.(54)

A.BudgetB.ThinkC.CountD.Number

39.(48)

A.praisingB.supplyingC.educatingD.treating

40.【C10】

A.stillB.perhapsC.almostD.even

41.

42.(44)

A.allowedB.temptedC.convincedD.caused

43.(43)

A.AmericanB.strangerC.workerD.student

44.theavoidanceoflateeatingand【C12】______areallhelpfultosoundsleepA.worryB.fearC.carelessnessD.hardwork

45.【B20】

A.excursionB.travelC.journeyD.trip

46.

第27題請(qǐng)?jiān)诘?7處填上正確答案。

A.sureB.uncertainC.gladD.nervous

47.31.________A.moviesB.videoC.watchD.telephone

48.(49)

A.interestsB.affectsC.suitsD.improves

49.(39)

A.hunterB.findC.wantedD.collected

50.28.()A.A.problemsB.themselvesC.excusesD.joy

三、語(yǔ)音(10題)51.(5)

A.askB.halfC.auntD.towards

52.1.A.machine

B.headache

C.

chemistry

D.

character

53.（）A.A.relaxed

B.joined

C.dressed

D.marked

54.(3)

A.combine

B.complain

C.comprise

D.complex

55.(1)

A.three

B.thought

C.clothes

D.tooth

56.（）A.A.Russian

B.racial

C.special

D.industrial

57.(4)

A.prevent

B.president

C.pregnant

D.present

58.5.A.industryB.industrialC.instructD.instruction

59.(2)

A.education

B.profession

C.precious

D.suggestion

60.

A.invasion

B.decision

C.occasion

D.discussion

四、詞匯與結(jié)構(gòu)(20題)61.Ifyou_________seeMr．Jim，yougivehimmyregards．

A.wouldB.shallC.shouldD.will

62.IfIhadknownI'dhurthimsomuch,I______that.

A.couldn'thavesaid

B.shouldn'tsay

C.wouldn'thavesaid

D.willhavenotsaid

63.Thereare______sodeafasthosewhowillnothear.

A.nobodyB.noneC.someoneD.any

64.Hardly______thehelicopter______whenthewaitingcrowdrantowardit.

A.had;landedB.has;landedC.did;landD.was;landing

65.Whenfirst______tothemarket,thetoysdidn'tattractmuchattention.

A.introducing

B.introduced

C.wasintroduced

D.beingintroduced

66.—Wasthehousemasterstrict?—Yes.Herequestedthatwe______televisiononweeknights.

A.notwatch

B.mustnottostay

C.notbewatching

D.stayingnot

67.Wedidn'tcatchthetrainon______ofthetrafficcongestion.

A.basisB.chargeC.accountD.behalf

68.Thebeautifulbagistooexpensiveforme.Icant______it.

A.payB.spendC.costD.afford

69.Itisdecidedthathe______forabustomeettheguestsfromBeijing.

A.callB.callsC.arrangeD.arranges

70.Scientists______thatbacteriathroughmicroscopesformanyyears．

A.studiedB.havestudiedC.hadstudiedD.haveseenstudied

71.Hewas______veryattentively,witheyeshalf-closed.A.A.hearingB.listeningC.lookingD.thinking

72.We‘ve__________sugar.Askhimtolendussome.

A.runawaywithB.rundownC.runoffD.runoutof

73.______dowegoforpicnics.

A.CertainlyB.SeldomC.SometimesD.Once

74.She______inthefeetonherwayhomefromwork.

A.washurtingB.ishurtC.hurtsD.gothurt

75.TheteacheraskedUStowritea__________inonehour．

A.two—hundred—wordcomposition

B.two—hundredwordscomposition

C.two．hundreds—wordscomposition

D.twohundredsofwordscomposition

76.Wearesatisfiedwithyour______(perform)attheschool.

77.Wewishtheworkcould______morequickly,butwe'dhadsomedifficultiesingettingtherightkindofsupplies.

A.havedoneB.havebeendoneC.havebeendoingD.bedone

78.Eversincethefamilymovedtothesuburbslastyear,they______betterhealth.

A.couldhaveenjoyed

B.hadenjoyed

C.havebeenenjoying

D.areenjoying

79.Thepeoplearefullyaware______theyhavebeforethemproblemsanddifficultiesofvariouskinds.

A.ofthatB.whatC.thatD.which

80.Itisaquestion______thebookwillbepublishedthismonthornextmonth.

A.ifB.whetherC.thatD.which

五、書面表達(dá)(1題)81.Ⅵ.Writing(25points)Directions:Forthispart,youaresupposedtowriteacompositionin100--120wordsbasedonthefollowingsituation.Remembertowriteitclearly.61．一組外國(guó)人原打算在我市參觀期間去你?？匆豢?，但因臨時(shí)有事不能去，請(qǐng)對(duì)你校布局予以介紹。注意：(1)敘述要有條理，方位清楚，要用一些方位詞。(2)題目：OurSchoolYard(3)在文中要提到教學(xué)樓，辦公樓，試驗(yàn)室，電教中心，圖書館，宿舍，食堂，操場(chǎng)等等。

六、寫作(1題)82.Forthispart,youaresupposedtowritealetterin100～120wordsbasedonthefollowingsituation.Remembertowriteitclearly.

你是張海。你的朋友王敏寫信給你，詢問你課余時(shí)間都做些什么。你回信給她，信件內(nèi)容包括：

(1)你的愛好并舉例說明；

(2)信尾寫上希望她做什么。

參考答案

1.D解析：文中“analcoholichusbandwhohasallbutabandonedthefamily”就是對(duì)James的父親的描繪。

2.B

3.D文中第二段提到Lawntennis被引入美國(guó)紐約，并且在那里舉行了第一場(chǎng)比賽。

4.A見第一段第四句。

5.A解析：參見第四段。單詞close是“關(guān)閉”的意思。

6.C

7.C解析：做細(xì)節(jié)判斷題的原則就是一定要在原文中找到準(zhǔn)確的定位。

8.B答案為B。根據(jù)第二段倒數(shù)第二句，Mark'sIQwas125，twenty-fivepointshigherthartheaverage得出選項(xiàng)B為正確答案。

9.A解析：參見第四段。

10.A解析：讀到第三段可知，it指的是happiness。

11.D解析：選項(xiàng)A、B、C均為細(xì)節(jié)用來說明D這一中心意思。

12.B解析：除了從First到Fifth五方面外，還要加上最后一段所述步驟：Besuretotryoutthecomputerbeforeyoubuyit所以總共6個(gè)步驟。

13.B解析：見原文第二段。LeeWildes住在舊金山的一個(gè)小公寓里。

14.A

15.B參考文章第二段，可知作者認(rèn)為學(xué)生有能力評(píng)判教師的講課水平。

16.B解析：見原文第一段。馬可尼發(fā)現(xiàn)了赫茲，并斷定說電磁波可以傳送信息。因此說他是一個(gè)發(fā)明家。

17.C解析：社會(huì)文化學(xué)者關(guān)注生活方式，風(fēng)俗習(xí)慣等，選C。

18.D解析：本題考查的是推理能力。該題可以從文章最后一段推導(dǎo)出D選項(xiàng)。

19.A文章簡(jiǎn)述了人類的內(nèi)部感官。B項(xiàng)是其中的一部分。C項(xiàng)是作者用來作引子，引起讀者的興趣，并與之比較，從而說明內(nèi)部感官究竟是什么。A項(xiàng)是正確的。

20.B解析：參見句子：Somepeoplehave“Sundaydinner”．Thisisanespeciallybignoonmeal．

21.D解析：細(xì)節(jié)辨認(rèn)題。根據(jù)第一段“WeatBarclaysknowthere’sastudentproblem—shortageofcash"可得出正確答案為D。

22.B

23.C解析：參見第三段和最后一段的最后兩句。

24.C根據(jù)文章第二段開頭一句，可知激光能夠清除動(dòng)脈里的脂肪物質(zhì)，因此答案應(yīng)是C項(xiàng)。

25.A見原文第三段。家鄉(xiāng)的人籌集費(fèi)用送他的16個(gè)親屬去現(xiàn)場(chǎng)觀戰(zhàn)。

26.B

27.D有人請(qǐng)Williams寫本兒童的書，他接受了，并想把自己的作品寫得與眾不同，但當(dāng)他開始運(yùn)作時(shí)，他腦子里還沒有清晰的思路。D項(xiàng)是正確的。

28.A解析：此句中random后的分詞短語(yǔ)即是對(duì)該詞的解釋。

29.A解析：通過句子“Stillothersthinkthatiftheyhavepower,theywillfindthisthing．”可知本題應(yīng)選A。

30.A52．答案為A

根據(jù)第二段清教徒剛到新大陸時(shí)的經(jīng)歷，可知是印地安人幫助了他們，因此豐收的時(shí)候，清教徒邀請(qǐng)印地安人做客以表示友好和感謝。

31.A

32.D33．答案為D

這句話的大意為：VOA明白它的聽眾沒有足夠好的英語(yǔ)水平讓他們能夠完全理解標(biāo)準(zhǔn)語(yǔ)速的英語(yǔ)?！白銐颉睘閑nou8h，故選D。

33.D24．答案為D

根據(jù)句意stirup“引起、激起”為正確選項(xiàng)。passout帶賓語(yǔ)時(shí)為“分發(fā)”；

takeaway“拿走”；backup“支持”。

34.A解析：我并不驚奇而是憤怒。在這以前我還從來沒有聽說過這樣有聲望的劇院竟然有如此荒謬的制度。

35.A解析：already“已經(jīng)”。男主人的工資只是將要降低，而他們的做法就好像這個(gè)事情已經(jīng)發(fā)生了一樣。

36.B

37.C介詞后面必須跟名詞性短語(yǔ)。所以，of后只能跟doing。beinglate也是一個(gè)常用短語(yǔ)。有了手機(jī)反倒不怕遲到了。

38.A解析：計(jì)算好時(shí)間。

39.C解析：本題屬詞選題。教育年輕人符合上下文的邏輯關(guān)系，故選educating(教育)。

40.Devent“甚至”，用來表示程度的遞增，符合邏輯。

41.Cworthdoing是固定搭配。

42.D解析：Tempt引誘，convince使信服，allow允許，cause造成、致使。后半句說ShirleyAllen徹底聾了，可以斷定，服藥的結(jié)果是耳聾?；蛘f，她的耳聾是藥物造成的。選項(xiàng)D是正確的。

43.B解析：在公共飯桌吃飯，并有時(shí)進(jìn)行交談，與A選項(xiàng)American，C選項(xiàng)worker，以及D選項(xiàng)student交代的身份并無必然聯(lián)系。B選項(xiàng)stranger“陌生人”則合乎題意。

44.A從前面所提內(nèi)容及avoidance：可知，所講內(nèi)容應(yīng)為影響睡眠的因素。故選worry“擔(dān)憂”。

45.B解析：excursion意為“短途旅行;”journey意為“(從一地到另一地的)長(zhǎng)距離，具體的旅途”；travel意為“旅行，旅游，海外旅行”；trip意為“旅行，遠(yuǎn)足”。

46.A試過第一步之后，他就有信心了，故用sure。

47.DHighdefinition高清晰度。能與電視的屏幕競(jìng)爭(zhēng)的是電影。選項(xiàng)A是正確的。

48.C解析：讓孩子選擇最“適合”自己的學(xué)習(xí)方式，suit“適合”，符合題意。

49.D解析：只知道她父親是家具木工。他也收集化石。“but”轉(zhuǎn)折說明前面應(yīng)是“少”。

50.D這些飽受同情痛苦的人將尋找新的社會(huì)體系，從而使人類的生命更快樂，進(jìn)而減少罪惡。

51.D解析：畫線部分讀[c:]，其他選項(xiàng)的畫線部分讀[a:]。

52.A1．答案為Amachine中字母組合ch讀作[∫]，其他都讀作[k]。

53.D

54.D解析：畫線部分讀[kcm]，其他選項(xiàng)的畫線部分讀[kem]。

55.C

56.D畫線部分讀[ie]，其他選項(xiàng)的畫線部分讀[e]。

57.A解析：畫線部分讀[i]，其他選項(xiàng)的畫線部分讀[0]。

58.A

59.D解析：畫線部分讀[ts]，其他選項(xiàng)的畫線部分讀[s]。

60.DA、B、C三項(xiàng)的劃線部分發(fā)[3en]，而D項(xiàng)劃線部分發(fā)[∫en]，因此選D項(xiàng)。

61.C

62.C解析：虛擬語(yǔ)氣。如果我知道這話會(huì)傷害他這么深，我就不會(huì)說了。

63.B解析：Nobody常作單數(shù)使用，故選none。

64.A解析：本題考時(shí)態(tài)。在when引導(dǎo)的主從復(fù)合句中，主句通常用過去完成時(shí)，從句用過去時(shí)。本句大意為：直升機(jī)剛著陸等候的人群就沖過去了。

65.B解析：由于前后兩個(gè)分句的主語(yǔ)是一致的，而且toys與動(dòng)作introduce構(gòu)成動(dòng)賓關(guān)系，故用過去分詞表被動(dòng)。根據(jù)題意選B。

66.A在含有要求、命令等意義的動(dòng)詞之后的賓語(yǔ)從句中，要用虛擬語(yǔ)氣，即“should+動(dòng)詞原形”，should可以省略，句中的request意為“要求”。

67.C解析：本題測(cè)試搭配。onaccountof意為“因?yàn)?、由于”。本句大意為：我們因?yàn)榻煌〒頂D沒趕上那班火車。

68.Dpay支付；spend花費(fèi)；cost花費(fèi)(主語(yǔ)為物)；afford支配得起。句意為：那個(gè)漂亮的包太貴了，我買不起。

69.C

70.B解析：本題考查時(shí)態(tài)的用法。由于句中已有“formanyyears”，故應(yīng)用現(xiàn)在完成時(shí)。

71.B本題為詞義辨析題。hear意為“感官的聽”；listen意為“注意地聽”。本句大意為：他注意地聽著，眼睛微微地閉著。

72.D本題后半句提到AskhimtolendUSsome，可知前半句是在說沒糖了。選項(xiàng)中runoutof符合題意。

73.B解析：本題考查倒裝句的用法。當(dāng)否定詞位于句前時(shí)，句子應(yīng)用倒裝句式。只有seldom(很少)表否定意，故選B。

74.D解析：本題材測(cè)試系表結(jié)構(gòu)。gethurt意為“受傷”，是系表結(jié)構(gòu)。本句大意為：下班回家的路上她傷了腳，

75.A

76.performance

77.B解析：對(duì)過去情況的虛擬，且表被動(dòng)關(guān)系，故選B。

78.C解析：本題考時(shí)態(tài)。根據(jù)句意確定該句應(yīng)用現(xiàn)在完成時(shí)態(tài)。本句大意為：這家人自從去年搬到郊區(qū)以來，健康狀況好多了。

79.Caware意為“知道的，了解的”，常用于“beawareofsth．／doingsth．”或“beaware+that從句”的結(jié)構(gòu)中。

80.B解析：這是主語(yǔ)從句后置的句子。由于主語(yǔ)從句中有表示選擇意義的or，所以不能選that。if不能引導(dǎo)主語(yǔ)從句。

81.61．在描寫文中，要把方位按一定的順序描寫清楚，可用一些方位詞如：infrontof，behind，

beside，onbothsides，nextto等等。另外，校園的設(shè)施也要會(huì)講，如：教學(xué)樓theteachingbuilding，辦公樓teacher'sofficebuilding，試驗(yàn)室thelab，電教中心theAudiovisualCentre，圖書館thelibrary，宿舍dormitory，食堂canteen，操場(chǎng)theplayground等等。OurSchoolYardThisisamapofourschoolOurschoolislikeabeautifulgarden.Whenyouentertheschoolgate,awidetree-linedroadleadsyourighttothenine-storyclassroombuilding,wherewestudy.NexttotheclassroombuildingistheAudiovisualCentre,wherewecanwatchTVeveryevening.Oneithersideoftheschoolroad,thereisaflowerbedinwhichvariouskindsofflowersareinbloom.

Inthesoutheastofourschoolyardstandsourbeautifullibrarywithallkindsofbooksinit.Teachersandstudentsgothereenjoyingreadingintheirsparetime.Andinthenortheast,yo