2022-2023學(xué)年上海市八年級英語下學(xué)期期末考點(diǎn)復(fù)習(xí)精講精練專題09重點(diǎn)語法知識梳理三：數(shù)詞及專練100題(含詳解)

專題09重點(diǎn)語法知識梳理三：數(shù)詞及專練100題

Grammarl：數(shù)詞

I.數(shù)詞

基數(shù)詞和序數(shù)詞

基數(shù)詞序數(shù)詞基數(shù)詞序數(shù)詞備注

onefirstthirteenthirteenth基數(shù)詞變序數(shù)詞口訣

twosecondfourteenfourteenth序數(shù)詞不難記，

threethirdfifteenfifteenth基數(shù)詞后加上th.

fourfourthsixteensixteenth遇到ty結(jié)尾詞，

fivefifthseventeenseventeenthy先變i再加e.

sixsixtheighteeneighteenth8少t,9少e.

sevenseventhnineteennineteenth面目全非三二一，

eighteighthtwentytwentiethve結(jié)尾五/十二。

nineninthfortythirtieth換成f須仔細(xì)。

tententhfiftyfortieth若是碰到幾十幾，

eleveneleventhsixtyfiftieth只將個位改為序。

twelvetwelfthseventysixtieth

eightyseventieth

ninetyeightieth

ninetieth

注意:

1）基數(shù)詞主要表示數(shù)量。十位和個位之間須用連字符號，百位數(shù)和十位數(shù)之間要用

ando如:31-thirty-one

2）序數(shù)詞主要表示順序，前面常用定冠詞。注意第一，第二，第三，第五，第八,

第九，第十二等。

3）第21-29,31-……91-99的序數(shù)詞形式，只變個位數(shù)，而十位數(shù)則用基數(shù)詞，若是

多位的基數(shù)詞變?yōu)樾驍?shù)詞，只需將末位數(shù)字變成序數(shù)詞，前面的數(shù)詞不變，當(dāng)序數(shù)詞

用阿拉伯?dāng)?shù)字表示時，必須在該數(shù)字之后加上序數(shù)詞的最后兩個字母。如：第

31-thirty-first.

4）百以上的序數(shù)詞表示方法；hundred-hundredth,thousand-thousandth.

5）千以上的數(shù)字讀法：從后面往前每三位數(shù)字作為一個單位，用逗號分開。第一個

逗號讀作thousand,第二個“讀作million.另外，“萬”用tenthousand,"十萬”

用ahundredthousand表示，billion在美國為十億，英國的十億是onethousandmilliono

二：年份&日期&時刻&編號的表示法

類別說明例詞讀法

年份表示在某年用介詞in+數(shù)字，讀in1987innineteeneighty-seven

時每兩個數(shù)字為一組以區(qū)別于

in1056intenfifty-six

整數(shù)。

in2000intwothousand

月份表示在某月用in+月份，月份的inApril(Apr.)

首字母要大寫，其縮寫形式為這

inMarch(Mar.)

個詞的前三個字母。

日期其順序是：月日（年），月年。onJanuary16onJanuarythesixteenth

有日時用介詞on,無日則用in,

inMay,2010inMay,twentyten

在月（日）與年之間用逗號分開。

theyear776BC(公元前776年)onJuly1,1921onJulythefirst,nineteentwenty-one

年代世紀(jì)表示“幾十年代”或“幾十歲”inthe1990sinthenineteennineties

時，用十的倍數(shù)的基數(shù)詞的復(fù)

inhisfifties

數(shù)，其前用in,且年代前用the。

幾點(diǎn)鐘“在幾點(diǎn)”用介詞at+數(shù)字，at10:30atteno'clock

o'clock可省略,如區(qū)分上下午,

at4p.m.atfourp.m.

可在時間后加a.m.或p.m.

幾點(diǎn)幾分正讀法：先讀小時，再讀分鐘，at2:40attwothirty/halfpasttwo

倒讀法：前半小時為'分鐘數(shù)

at6:05atsixfive/fivepastsix

+past+點(diǎn)鐘數(shù)'，30分鐘用half,

15分鐘用aquarter,后半小時為at12:45attwelveforty-five/aquartertoone

'60-分鐘數(shù)+to+未來的點(diǎn)鐘

數(shù)，

編號一般編碼用“名詞+基數(shù)詞”表Room502Roomfive0two

示，強(qiáng)調(diào)“編號”，用“序數(shù)詞

Class2,Grade5Classtwo,Gradefive

+名詞”著重“順序”。其讀法

為“見幾讀幾”，連續(xù)重復(fù)出現(xiàn)Part5PartFive

的數(shù)可用double,零可用0或

BusNo.16Busnumbersixteen

zeroo

郵政編碼：510640

特殊數(shù)字的表示及讀法

舉例/分規(guī)則例詞讀法

類

小數(shù)小數(shù)以基數(shù)詞加熊啊書店0.3zero/naughtpointthree

表示，點(diǎn)讀point,其前按

5.61fivepointsixone

數(shù)詞規(guī)則讀，其后的數(shù)一個

個地讀。

分?jǐn)?shù)分?jǐn)?shù)由基數(shù)詞作分子，序數(shù)1/2a/onehalf

詞作分母構(gòu)成，分子大于1

1/4a/onequarter,one-fourth

時，分母序數(shù)詞都要用復(fù)數(shù)

3/4three-fourths/three-quarters

3/20three-twentieths

3

2-twoandfour-fifths

5

百分?jǐn)?shù)%讀percent,百分?jǐn)?shù)還可分45%forty-fivepercent

開寫percent.

大約數(shù)“正好”用exactly,clearly,大約1000人about/almost1000people

precisely,大約用“about,

大約1小時about/almostanhour

nearly,some,towards,more

orless+數(shù)字”或less放在后50以上morethan/over/above50

面，還可用somethinglike,

不到30lessthan/under/below30

intheneighborhoodof,a

day/week/month/yearor10天左右sometendays/tendaysorso

two,“總共”用inall,total.

40上下fortymoreorless/aboutforty

大約100畝地intheneighborhoodofahundredacres

ofland

倍數(shù)一倍once,兩倍twice,三倍A比B大（高，長，Aissixtimesbigger/

threetimes寬）6倍higher/broader/longer/widerthanB.

增加了2倍=增至3=Aissixtimesasbig/highasB.

倍=為……

CisthreetimeslessthanD.

一些數(shù)學(xué)A+B=?HowmuchisAplus注意一些數(shù)詞習(xí)慣表達(dá)：tentoone十

公式的表B?有八九

A-B=?

示法

HowmuchisAsixesandsevens亂七八糟

AxB=?

minusB?

twosandthrees三三兩兩

A-?B=?

HowmuchisA

aone-eyedcat獨(dú)眼貓

3+6=9timesB?

atwo-dayholiday連天的假期

9-3=6HowmuchisA

dividedbyB?athree-legedchair三條腿的椅子

3x9=27

3plus/and6is9.比例表示法：

9+3=3

9minus3is6.1.Oneineightjoinedtheclub.八分之

A>B

一的人參加了這個俱樂部。

3from9is6.

A<B

2.Oneinahundredsurvivedthe

Threetimesnineis

A#Bearthquake.百分之一的人在這次地震

twenty-seven.

中活了下來。

A=B

Ninedividedby

threeisthree.

AismorethanB.

AislessthanB.

AisnotequaltoB.

Aapproximately

equalsB.

數(shù)詞的其他用法

1.數(shù)量增加的表示及譯法increase(rise,grow,goup...)表示數(shù)量的增加

increase(rise...)3times增加2倍

increase(rise...)by15%增長15%

6timesasmuchas...6倍那么多，多5倍

halfaslongas...一般那么長

30percentasheavyas...百分之三十那么重

onefourthasgreatas...四分之——那么大

2.數(shù)量減少的表示及譯法reduceto15%降到15%,減少85%

reduceby20%減少20%

fall/dropby10%下降10%

fifteenpercentdiscount八五折

thirtypercentdiscount七折

3.年齡的表示法1)他8歲。Heiseightyearsold./Heisaneight-year-oldboy.

2)大概年齡表示法：他父親60多歲去世的。

A.Hisfatherdiedinhissixties.

B.Sheisstillinherfifties.她才50多歲。

C.Heisinhisearlythirties.他30歲出頭。

D.Sheisabout/aroundforty.她40歲左右。

E.Heiscloseto70.他快70歲了。

F.Sheisalmost80.她差不多80了。

3)十幾歲(從13?19歲)的說法：

inhisteens十幾歲inhisearlyteens十三四歲

4)“不滿.…歲”的表示法：

A.Heisjustundertwenty.他還不到20歲

B.Mymotheristwoyearsoffsixty.再過兩年我媽就60歲了。

C.Heisgoingoneightyyearsold.他年近80歲。

D.Shewillbe18yearsoldnextweek.下周她就18歲了。

5)年歲的其他表示法：

成年beofage,未成年beunderage,年邁befarinyears已至U

上學(xué)年齡beofschoolage,超齡beoverage

使用英語數(shù)詞和阿拉伯?dāng)?shù)字注意事使用數(shù)字時，應(yīng)該遵循以下原則：

項(xiàng)

A.10以下的數(shù)用英語數(shù)詞，100以上的數(shù)用阿拉伯?dāng)?shù)字。

B.10-100之間的數(shù)用英語數(shù)詞或阿拉伯?dāng)?shù)字均可。

n.考綱詞匯梳理:

1.Thereare12monthsinoneyear—January,February,March,April,May,June,July,

August,September;October,NovemberandDecember,anditisratherdifficultformany

Englishlearnerstolearnthembyheart.一年中有12個月―一月，二月…，對許多學(xué)

英語者來說，記住它們是相當(dāng)難的。

【拓展1】

ratheradv.相當(dāng)近義詞：quite

【拓展2】

byheart背得出，靠記憶

Iknewthispassagebyheart.我背得出這篇文章。

atheart心底上；本質(zhì)上

Healwayshasthewell-beingofthemassesatheart.他總是把群眾的疾苦掛在心上。

Thatsocialiteisarascalatheart.那個知名人士實(shí)質(zhì)上是個壞蛋。

2.Duringtheconcert^itisnotpolitetousethecamerawiththeflashoroftenmoveinfront

oftheiraudiences,anditisevenrudetocommunicatewithyourfriends.在聽音樂會的

時候，用閃光燈拍照和在觀眾前面不停的走動都是不禮貌的，如果和你的朋友交流更

是粗魯?shù)谋憩F(xiàn)。

【拓展1】

politeadj.禮貌的impoliteadj.不禮貌的politenessn.禮貌

rudeadj.粗魯?shù)膔udenessn.粗魯berudeto對…粗魯?shù)?/p>

【拓展2】

flashn.閃光

inaflash一瞬間近義詞：inamoment/minuteinaninstantrightaway

【拓展3】

theticketfortheconcert音樂會的門票，注意用介詞for

thetickettoShanghai去上海的車票

3.Hejustmovedtothenewseniorhighschoolsotheclassteacheraskedhimtointroduce

himselftothewholeclassandarrangedhisseatbesidethemonitor.他剛剛轉(zhuǎn)到一個新

的高中，因此他的班主任要求他把自己介紹給全班，然后把他的座位安排到班長的旁

邊。

【拓展1]

movev./n.移動movedadj.感動的二touched

removev.移除removesth.from把某物從…移除

【拓展2】

introducev.介紹introductionn.介紹；引進(jìn)

【拓展3】

arrangev.安排

arrangetodosth.arrangeforsb.todosth.

【拓展4】

sitvi.坐下seatn.座位vt.坐下

givesb.aseat給某人一個座位seatsb./sb.beseated安排某人坐下

4.Thesoldierisstrongenoughtoliftthisheavybag.士兵足夠強(qiáng)壯能夠提起這個重包。

【拓展1]

liftn.電梯/v.拎l(xiāng)ift-lifted-lifted

【拓展23

enough放在名詞之前，放在形容詞/副詞之后

enoughapplesheavyenough

enoughto與sothat與tooto同義句轉(zhuǎn)換：

Theboyisnottallenoughtoreachthetop.

=Theboyissoshortthathecan'treachthetop.

=Theboyistooshorttoreachthetop.

數(shù)詞專練100題

一、單項(xiàng)選擇

1.AboutoftheEarth'ssurfacecoveredwithwater.

A.threefourths:isB.threefourths;areC.threefourth;isD.threefourth;are

2.It'ssurprisingformetolearnthathespendsreadingthenewspaperseveryday.

A.twoandahalfhoursB.twoandhalfhoursC.twohours'andahalf

D.twohoursandhalf

3.Ittakesusonlytofinishthework.

A.oneandhalfhourB.onehourandhalf

C.oneandahalfhourD.onehourandahalf

4.Asafamousdentist,heearnseverdollarsayear.

A.twomillionsB.twomillionsofC.millionofD.twomillion

5.Therewererulestofollowataformalmeallastnight.

A.dozenB.halfadozenC.dozenofD.twodozens

6.Shanghaiissuchabigcity.Thereareoverpeoplelivinginthecity.

A.millionsB.26millionC.26millionofD.millionsof

7.Thereisabuildinghighbytheroad.

A.tenthstoreyB.tenstoreysC.ten-storeysD.ten-storeies

8.touristswillpayavisittoShanghaiDisneylandwhenitisfinished.

A.OnemillionofB.MillionsofC.TwomillionsD.Millionof

9.oftheGradeEightstudentsenteredforthesportsmeeting.

A.Two-fifthsB.Two-fifthC.Second-fiveD.second-fifths

10.Thestreetisaboutmeterslong.

A.twohundredforty-four

B.twohundredandfortyfour

C.twohundredandforty-four

D.twohundredsandforty-four

11.Aboutyearsago,therewerenohumanshere.

A.twomillionsB.twomillionsofC.twomillionD.millionsof

12.TheChinesedelegation（代表團(tuán)）hadfourgoldenmedalsattheOlympicGamesin

Tokyoyesterday.

A.anotherB.theotherC.theothersD.other

13.MyclassmateShawnMendesisonlyoneandahalftall.

A.meterB.metersC.centimeterD.centimeters

14.ItisreportedthataboutpeoplearelivinginShanghai.

A.24millionsB.24millionsofC.24millionD.24millionof

15.Chinahasgotaboutofgoldenmedalsinthe2016OlympicGames.

A.first-tenthB.one-tenthC.first-tenD.one-ten

16.Ifyouwanttochangeforadoubleroomwithabalcony,youwillhavetopay$50.

A.otherB.anotherC.othersD.theother

17.IttookmetowalktotheCenturyParklastweek.

A.oneandahalfhourB.onehourandahalf

C.oneandhalfhoursD.onehourandhalf

18.ShanghaiArtMuseumholdsmorethanartcollections.

A.fourthousandsB.fourthousand

C.thousandsofD.fourthousandof

19.Thenewbuildingisabout.

A.120metreshighB.120-metre-highC.120-metres-highD.120-metrehigh

20.Therearemorethanthreedifferenttreesintheforests.

A.thousandsofB.thousandofC.thousandsD.thousand

21.Look!Theskyissobeautiful.starsareshiningthere.

A.MillionsB.MillionsofC.TenmillionsD.Tenmillionof

22.peopleintheworldaresendingandreceivinge-mailseveryday.

A.MillionofB.Severalmillionof

C.MillionsofD.Severalmillions

23.Therearemorethanstudentsstudyinginthisschool.

A.thousandofB.twothousandC.twothousandsofD.thousandsof

24.Thebagofriceweighs.Theoldladycan'ttakeitupstairs.

A.fivekilogramsandhalfB.fiveandhalfkilograms

C.fiveandahalfkilogramD.fivekilogramsandahalf

25.touristsvisitHongKongeachyearbecauseHongKongisa"/ShoppingParadise”.

A.ThousandsB.ThousandsofC.ThousandofD.Thousand

26.Joeisagoodstudent.Heislateforschool.

A.alwaysB.neverC.oftenD.sometimes

27.—Haveyoufinishedyourhomeworkyet?

—No,I'llfinishitintenminutes.

A.anotherB.moreC.otherD.else

28.Morethanstudentstookpartinourschoolsportsmeeting.

A.twohundredB.twohundredsC.hundredsofD.twohundredof

29.Thereareaboutthreebooksinourschoollibrary.

A.thousandsB.thousandC.thousandsofD.thousandof

30.Becauseoftheheavyhaze（霧霾）,theyhadtostayattheairportfortwohours.

A.otherB.othersC.anotherD.theother

31.touristspayavisittoShanghaiDisneylandeveryyear.

A.MillionsofB.MillionsC.MillionofD.Millions

32.Iwillsendmybookstothepoorstudentsinthemountainareas.

A.hundredsB.twohundredsC.hundredsofD.twohundredof

33.InhisCharlesbegantowriteandsoonbecamefamous.

A.twentyB.twentiesC.twentiethD.twentieths

34.Shanghaiisabigcityandoverpeoplearelivinghere.

A.24millionsB.24millionC.24mjllionsofD.24millionof

35.Thebridgeisaboutwide.Becarefultocrossit.

A.twometreB.twometresC.two-metreD.two-metres

36.Abouttheclientsareoldpeople.

A.hundredsofB.twohundredofC.twohundredD.twohundreds

37.Theoldmanspentofhislifetimepainting.

A.three-forthsB.three-fourthC.three-fourthsD.three-four

38.Mr.Li'sclasshasfifty-onestudents,ofthemaregirlstudents.

A.second-thirdsB.second-thirdC.one-thirdD.two-second

39.NearlyofthestudentsinyourclasstookpartintheEnglishcompetition.

A.one-thirdB.one-threeC.one-thirdsD.fjrst-three

40.Whichofthefollowingisafraction?

A.25%B.2.5C.2/5D.25

41.oftheteachersinourschoolarewomenteachers.

A.Five-eighthsB.Five-eightC.Five-eightsD.Fifth-eight

42.ofmysister'sincomespentonclothes.

A.Three-fourth;areB.Three-fourths;areC.Three-fours;isD.Three-fourths;is

43.thestudentsintheprimaryschoolisabout3,000,ofthemaregirls.

A.Anumberof,twothirdsB.Thenumberottwothirds

C.Anumberof,twothirdD.Thenumberof,twothird

44.AboutofEnglishteachersinourschoolareundertheageof40.

A.three-fifthsB.three-fifthC.third-fifthD.third-fifths

45.December9shouldbereadas.

A.Decemberofthe9thB.Decemberof9

C.9ofDecemberD.the9thofDecember

46.islessthan.

A.First-three;first-threesB.One-third;two-third

C.One-third;two-thirdsD.First-three;one-threes

47.oftheteacherscomefromthesouthofChina.

A.Two-threeB.Two-thirdsC.Two-thirdD.Second-thirds

二、用所給單詞的正確形式填空

48.Thisisher(twenty)birthday.

49.Yesterdaywasmygrandma'sbirthday.Weallhadagoodtime,(sixty)

50.PeoplecelebratetheDragonBoatFestivalondifferentdates.ItisonJunethethis

year,(fourteen)

51.Weliveonthefloor,(twelve)

52.WeheldouronlineChristmaspartyandallofusenjoyedit.(one)

53.Lessonisthemostdifficultlessoninthisterm.(fifth)

54.Johnhasabrotherandasister.HeisthechildofSmith'sfamily,(three)

55.TyronewenttoliveinAustraliawithhisfamilyinhis.(fifty)

56.Shehasboughtanewflatinthisbuildingandit'sonthefloor,(five)

57.TheSymphonyofBeethovenisafamouspieceofmusic,(nine)

58.ThisyearmarkstheanniversaryofChina'sreformandopening改革開放).

(forty)

59.TheBrownsliveonthefloor,(nine)

60.Iliveonthefloorofthetallbuildinginthishousingestate.(nine)

61.TheboyfromtherightinthephotoisBen.(four)

62.Joanfoundthebookeasytounderstandexceptforthechapter.(five)

63.Thespaceagedawned(開始出現(xiàn))inthecentury,(twenty)

64.Decemberisthemonthoftheyear,(twelve)

65.Helivesonthefloor,(nine)

Completethesentenceswiththegivenwordsintheirproperforms.

66.Wecanfindalotofnamesandofpenfriendsinthatmagazine.(address)

67.JackandMaryhadanaboutwhoinventedmicrowaveoven,(argue)

68.Johnusuallygoestoseehisgrandparentsamonth,(two)

69.Inordernottowakethesleepingbaby,Marylefttheroom.(quiet)

70.Maryisaveryclevergirlandshecandotheveryfast,(calculate)

71.Tom'smotherboughtancalculatorforTomashisbirthdaypresent,(electricity)

72.Thiskindofcarhasaveryengine,(power)

Completethesentenceswiththegivenwordsintheirproperforms(用括號中所給單詞的適當(dāng)

形式完成下列句子)：

73.Thetreesonbothsidesofthestreetareinthesame(high)

74.Ihaveboughtanewflatinmyonmyown.(thirty)

75.Iwasingettingthefirstprizeinthereadingcontestlastweek,(success)

76.Yesterdayeveningthepolicemencaughttwo(thief)

77.Myuncleisthemanagerofthecompanywhoisresponsiblefor.(sell)

78.Hecantellusallthedetailswewant,(probably)

79.Theywerelateforthemeetingandmissedtheoftheimportantmeeting.(begin)

80.Totellthe,itwaswiseofhimtosolvethisproblem,(true)

81.Ourmotherlandwillcelebrateherbirthdaythisyear,(seventy)

82.Sandylivesonthefloor,onefloorhigherthanmine,(twelve)

Completethesentenceswiththegivenwordsintheirproperforms(用括號中所給單詞的適當(dāng)

形式完成下列句子)：

83.AllBetty'sfriendscametoherpartytocelebrateherbirthday,(nine)

84.Thewater;foodandoxygenarebasicelementswhichkeepus.(live)

85.Thestudentswanttotheirreadingskillsduringthisterm.(development)

86.Internetisprobablythemostpopularinthelate20thcentury,(invent)

87.Infact,thehumanbrainisa"computer”.(power)

88.Thestoryisaboutalittlegirlsavedhermotherduringanearthquake,(follow)

三、多句選詞填空

Choosetherightwordtocompletethesentence(選擇合適的詞，完成句子)：

89.Tomistheonetocometoschool.(second,two)

90.One-ofameteriscalledacentimeter.(hundred,hundredth)

91.Peterisfifteenyearsold.JohnisasoldasPeter.HowoldisJohn?(second,twice)

92.MaryistakingpicturesonAvenue,(theFifth,Fi代h)

93.Sixbytenequalssixty,(multiply,multiplied)

94.ofvisitorscometoShanghaifortravellingeveryday.(Thousands,Thousand)

95.Themeetingroomisonthefloor,(nine,ninth)

96.Lindaisagirlof.(eleven,eleventh)

四、句子/對話改錯

Correctthemistakesinthefollowingsentences.

97.Eightypercentsofthepopulationofourcountryarefarmers.

ABCD

Theunderlinedpartiswrong,itshouldbe--------------

98.Everyoneistirednow.Let'shaveatenminutesbreak,shallwe?

ABCD

Theunderlinedpartiswrong,itshouldbe--------------

99.Thestreetisfivekilometerslongerandfiftymeterswide.

ABCD

Theunderlinedpartiswrong,itshouldbe--------------

100.NobodyofourclasscanjumpfartherthanTiminthelongjump.

ABCD

Theunderlinedpartiswrong,itshouldbe.

數(shù)詞專練100題參考答案

一、單項(xiàng)選擇

1.AboutoftheEarth'ssurfacecoveredwithwater.

A.threefourths:isB.threefourths;areC.threefourth;isD.threefourth;are

【答案】A

【詳解】

句意：大約四分之三的地球表面被水覆蓋。

考查分?jǐn)?shù)表達(dá)以及主謂?致。英語中表示分?jǐn)?shù)時，分子用基數(shù)詞，分母用序數(shù)詞，分子大于

1,分母用復(fù)數(shù)，故"四分之三”可表達(dá)為threefourths；結(jié)構(gòu)"分?jǐn)?shù)+of+名詞”作主語時，謂語

動詞和名詞保持一致，此處"surface”是不可數(shù)名詞，故此處be動詞用is。故選A。

2.It'ssurprisingformetolearnthathespendsreadingthenewspaperseveryday.

A.twoandahalfhoursB.twoandhalfhoursC.twohours7andahalf

D.twohoursandhalf

【答案】A

【詳解】

句意：得知他每天花兩個半小時的時間看報(bào)紙，我感到非常驚訝。

考查時長的表達(dá)。根據(jù)題干和答案可知此處要表示所花費(fèi)的時間是"兩個半小時"，正確的表

達(dá)是twoandahalfhours或twohoursandahalf。故選A。

3.Ittakesusonlytofinishthework.

A.oneandhalfhourB.onehourandhalf

C.oneandahalfhourD.onehourandahalf

【答案】D

【詳解】

句意：我們只需要一個半小時就可以完成這項(xiàng)工作。

考查時間表達(dá)法。“一個半小時”用英文表達(dá)是"oneandahalfhours或者onehourandahalf"。

故選Do

4.Asafamousdentist,heearnseverdollarsayear.

A.twomillionsB.twomillionsofC.millionofD.twomillion

【答案】D

【詳解】

句意：作為一個著名的牙醫(yī)，他每年賺兩百萬美元。

考查million的用法。在表示一個具體的數(shù)目時，million后面不能加?s,此題表達(dá)“兩百萬〃,

是具體數(shù)目，故用twomillion；millionsof表示“成千上萬的，無數(shù)的"。故選D。

5.Therewererulestofollowataformalmeallastnight.

A.dozenB.halfadozenC.dozenofD.twodozens

【答案】B

【詳解】

句意：昨晚的正式餐宴有6條規(guī)則要遵守。

考查量詞短語。dozen一打（往往需要用數(shù)詞+dozenof,表示“兒打"卜halfadozen半打；

dozenof表達(dá)錯誤；twodozens表達(dá)錯誤。只有halfadozen表達(dá)正確。故選B0

6.Shanghaiissuchabigcity.Thereareoverpeoplelivinginthecity.

A.millionsB.26millionC.26millionofD.mil