中考英語(yǔ)總復(fù)習(xí)之?dāng)?shù)詞-詳解與練習(xí)

【名師點(diǎn)睛】一、基數(shù)詞用于表示事物數(shù)量的詞，叫基數(shù)詞。

如：twobridges兩座橋，twentysoldiers20個(gè)戰(zhàn)士。1.基數(shù)詞的詞形(1)從1到12是獨(dú)立的數(shù)詞：one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve。(2)從13到19：在個(gè)位數(shù)后-teen。thirteen,fifteen,eighteen,nineteen(3)從20到90的各整十位數(shù)都以-ty結(jié)尾。twenty,thirty,fifty,eighty,ninety(4)20到100之間的其余的兩位數(shù)，要在十位和個(gè)位之間加連字符號(hào)“-”。twenty-five,thirty-two,ninety-eight(5)百位以上的數(shù)詞，要在百位和十位(沒(méi)有十位則和個(gè)位)之間加and。101：onehundredandone258：twohundredandfifty-eight(6)英語(yǔ)中的數(shù)詞每3位數(shù)一個(gè)單位hundred，thousand千，million百萬(wàn),billon十億

從個(gè)位向前，每三位加一個(gè)“，”；第一個(gè)“，”號(hào)前是thousand(千)，第二個(gè)“，”前是million(百萬(wàn))……。4，002：fourthousandandtwo 7，059：seventhousandandfiftynine95，680：ninetyfivethousand,sixhundredandeighty(7)hundred,thousand,million的用法hundred,thousand,million在任何具體數(shù)字之前，都要用單數(shù)形式。但如果其后有of，則要用復(fù)數(shù)形式(其前面不能再加具體數(shù)目)。例如：twomillion200萬(wàn) millionsof數(shù)百萬(wàn) thousandsof成千上萬(wàn)ThousandsandthousandsofvisitorshavecometoBeijinginthelasttwomonths.在過(guò)去的兩個(gè)月里有成千上萬(wàn)的來(lái)訪者到過(guò)北京。注：有數(shù)詞就沒(méi)有s,有s就有of.2.基數(shù)詞的讀法用逗號(hào)把長(zhǎng)數(shù)字從右向左三位三位地分開(kāi)，如12，000.讀數(shù)時(shí)，從左向右三位三位地按照三位數(shù)讀法讀，遇上逗號(hào)就分別加上該逗號(hào)所表示的數(shù)詞。例如：43，982，567forty-theremillion,ninehundredandeighty-twothousand,fivehundredandsixty-seven3.基數(shù)詞的用法①基數(shù)詞在句子中可以作主語(yǔ)、賓語(yǔ)、定語(yǔ)、表語(yǔ)和同位語(yǔ)。TwoofthemareworkersfromChina.他們之中有兩名是來(lái)自中國(guó)的勞工。(作主語(yǔ))--Howmanypiecesofbreaddoyouwant?--Iwanttwo.--你要幾片面包?我要兩片。(作賓語(yǔ))--Threetimesfiveisfifteen.3乘5等于15。(作表語(yǔ))Hisdaughterisonlyfive.他的女兒只有5歲。(作表語(yǔ))Thefourstudentsdidn'tpasstheexam.這4個(gè)學(xué)生考試不及格。(作定語(yǔ))Therearetwentytwoboystudentsinourclass.我們班有22個(gè)男生。(作定語(yǔ))Theytwowillgotoattendthemeetingwithyou.他們倆個(gè)人將與你一起去參加那個(gè)會(huì)議。(同位語(yǔ))②基數(shù)詞與名詞連用表示編號(hào)。LessonEight第八課 ClassOne,GradeThree三年級(jí)一班 Room102102號(hào)房間No.4MiddleSchool四中 38ChanganStreet長(zhǎng)安街38號(hào) BusNo.1010路公共汽車P.O.Box325325號(hào)信箱 Tel.No.6850,3258電話號(hào)碼：6850，3258③數(shù)詞復(fù)數(shù)表示年齡和年代、月份和日期。Ⅰ表求確切年齡注意：①年代是四位數(shù)時(shí)，各分成二位來(lái)讀：1998年：讀作：nineteenninetyeight。②日期按序數(shù)詞讀：7月10日讀作Julytenth。Ⅱ表示年代或人的不確切歲數(shù)，用幾十的復(fù)數(shù)形式inthe1960s二十世紀(jì)六十年代inone’s+數(shù)詞復(fù)數(shù)在某人幾十多歲intheforties在40年代Theoldmanisnowinhiseighties.這位老人現(xiàn)在已經(jīng)80多歲了。Ⅲ表示年、月、日in1992在1992年；inJune,1966在1966年6月；onJuly28,1978在1978年7月28號(hào)④基數(shù)詞用于表示時(shí)間。表示時(shí)間有兩種方法：①表示“幾點(diǎn)過(guò)幾分”，30分鐘之內(nèi)用介詞past。八點(diǎn)十分tenpasteight九點(diǎn)一刻aquarterpastnine12∶30halfpasttwelve②表示“幾點(diǎn)差幾分”，30分鐘之內(nèi)(不包括30分整)，用介詞to。(7∶50)tentoeight(8∶45)aquartertonine(12∶50)tentoone③也可以按照時(shí)刻表直接讀數(shù)字。二點(diǎn)四十twoforty五點(diǎn)半fivethirty七點(diǎn)一刻sevenfifteen九點(diǎn)零五nine0five⑤基數(shù)詞可以表示算式。8+4=12Eightplus(and)fouristwelve. 15-9=6Fifteenminusnineis(leaves)six.7×9=63Seventimesnineissixtythree. 30÷6=5Thirtydividedbysixisfive.二、序數(shù)詞表示數(shù)目的順序或事物的位置的詞，叫作序數(shù)詞。1.序數(shù)詞的形式從第一到第三為獨(dú)立的特殊形式first,second,third.從第4到第19以基數(shù)詞加“th”構(gòu)成：fourth,fifth,sixth,seventh,eighth,ninthtenth,eleventh,twelfth,thirteenth,fourteenthfifteenth,sixteenth,seventeenth,eighteenth,nineteenth第20以上的的序數(shù)詞從20到90等以ty結(jié)尾的十位整數(shù)，把y改成i再加“eth”構(gòu)成序數(shù)詞twentieth,thirtieth,fortieth,fiftieth,sixtieth,seventieth,eightieth,ninetieth100的序數(shù)詞為：hundredth。其余的兩位或多位數(shù)，只將個(gè)位改成序數(shù)詞，其余仍用基數(shù)詞表示：twenty--first,thirty--second,forty—thirdtwohundredandninth--eighth(第298)threethousand,sevenhundredandtwenty--first(第3721)注意：①fifth,ninth,twelfth與原基數(shù)詞拼寫不同。②序數(shù)詞的縮寫形式為阿拉伯?dāng)?shù)字加序數(shù)詞最后兩個(gè)字母組成。122nd(第122)，38th(第38)，281st(第281)2983rd(第2983)，1320th(第1320)基變序口訣基變序，有規(guī)律，詞尾要加th。一二三，特殊記，詞尾分別tdd。八去t，九去e。五和十二ve要用f替。整十?dāng)?shù)y尾變ie，再加th莫忘記。若遇幾十幾，只變個(gè)位就可以。2.序數(shù)詞的用法

(1)序數(shù)詞可以作主語(yǔ)、賓語(yǔ)、表語(yǔ)、狀語(yǔ)和定語(yǔ)Thesecondisbetterthanthefirst.第二個(gè)比第一個(gè)好。(作主語(yǔ))Hehasbuiltfivebridgessince1950,nowheisstartingonthesixth.自1950年以來(lái)，他已建造過(guò)五座橋了，現(xiàn)在他正開(kāi)始建第六座橋。(作賓語(yǔ))Maryisthefirsttocompletethetestpaperinherclass.(作表語(yǔ))瑪麗是她們班上第一個(gè)完成試卷的人。Shealwayscomesfirst.她總是第一個(gè)到。(作狀語(yǔ))ThiswasthefirsttimehecametoChina.這是他第一次來(lái)中國(guó)。(作定語(yǔ))序數(shù)詞在使用時(shí)，通常前面要加定冠詞the；但是如果序數(shù)詞前出現(xiàn)不定冠詞a或an時(shí),則表示“再……",“又……"。Youcandoitasecondtime.你可以做第二次。(作定語(yǔ))(2)序數(shù)詞可以表示日期。It'sSeptemberthefirsttoday.今天是9月1日。IthappenedonSeptember18th,1931.這發(fā)生在1931年9月18日。(3)序數(shù)詞可以表示編號(hào)。thetwelfthlesson(=Lesson12)第十二課thesecondparagraph(=ParagraphTwo)第二段thefourthMiddleSchool(=No.4MiddleSchool)第四中學(xué)thethirtyeighthroom(=Room38)第38號(hào)房間thetenthpage(Page10)第10頁(yè)三、數(shù)詞的特定表示法和讀法(1)分?jǐn)?shù)表示法分?jǐn)?shù)的構(gòu)成分?jǐn)?shù)的構(gòu)成為分子用基數(shù)詞，分母用序數(shù)詞，分子如果大于1，則分母序數(shù)詞一般都用復(fù)數(shù)形式。1/2：a(one)half,1/3：a(one)third,1/4：aquarter2/5：twofifths,3/4：threequarters1/25：atwentyfifth,1/100：ahundredth，3/100：threehundredths,5/1000：fivethousandths帶分?jǐn)?shù)的整數(shù)和分?jǐn)?shù)之間須用and連接：threeandahalf讀作fiveandaquarter注意：表示“某一整體的幾分之幾”，使用：分?jǐn)?shù)+of+the+名詞。

Shespentonethirdofhersalariesyesterday.她昨天花去了薪水的三分之一。Onehalfofthestudentsareforeigners.一半的學(xué)生是外國(guó)人。Theyhavecoveredthreefifthsofthedistance.他們已經(jīng)走完了五分之三的距離。(2)小數(shù)表示法小數(shù)只能用基數(shù)詞表示。其中小數(shù)點(diǎn)讀作point，零讀作zero；小數(shù)點(diǎn)之后按數(shù)字依次讀出；整數(shù)部分為零時(shí)，可以省略不讀。0.9：zeropointnine或pointnine3.58：threepointfiveeight0.016：0point0onesix8.025：eightpoint0twofive99.87：ninetyninepointeightseven

(3)百分?jǐn)?shù)表示法%讀作percent18%：eighteenpercent0.6%：zeropointsixpercent99.9：ninetyninepointninepercent0.05%：0point0fivepercent

注意：數(shù)詞與表示單位的名詞一起使用作定語(yǔ)時(shí)，單位名詞必須用單數(shù)。

二十英鎊的紙幣：atwentypoundnote(4)算式的表示方法①加法“加”用plus,and或add表示；“等于”用is,make,equal等詞表示.1+2=？可表示為：Howmuchisoneplustwo?一加二等于多少？

1+2=3Oneplustwoisthree.Oneandtwoisequaltothree.Oneandtwomakethree.

Oneaddedtotwoequalsthree.Ifweaddoneto/andtwo,wegetthree.②減法“減“用minus或takefrom表示。

9-3=？Howmuchisnineminusthree?九減三等于多少？9-3=6Nineminusthreeissix.Takethreefromnineandtheremainderissix.Three(taken)fromnineissix.③乘法“乘”用time（動(dòng)詞）或multiply表示。

2×3=?Howmuchistwotimesthree?二乘以三等于多少？2×3=6二乘以三等于六。Twotimesthreeis/aresix.Multiplytwobythree,wegetsix.Twomultipliedthreemakessix.

②除法“除”用divide的過(guò)去分詞形式表示15÷3=?Howmuchisfifteendividedbythree?十五除以三等于多少？15÷3=5Fifteendividedbythreeisfive.Fifteendividedbythreeequals/gives/makesfive.③其他算式的寫法和讀法比例、乘方、開(kāi)方等算式的讀法

1：2讀作theratioofonetotwo15：3讀作Theratiooffifteentothreeequalsfive.32讀作threesquared

(5)數(shù)詞前加every,表示每……/每隔…….everytendays

=everyninthday

每十天(每隔九天)注:every+基數(shù)詞+復(fù)數(shù)名詞=every+(序數(shù)詞-1)+單數(shù)名詞(6)“多少又一半”的表達(dá)法:

基數(shù)詞+and+ahalf+名詞復(fù)數(shù)=基數(shù)詞+名詞(單數(shù)/復(fù)數(shù))+and+ahalfhalfanhour半小時(shí)twoandahalfhours

=twohoursandahalf(7)倍數(shù)① 倍數(shù)+as+形(副)原級(jí)+asIhavethreetimesasmanyasyou.我有你三倍那么多② 倍數(shù)+形(副)比較級(jí)+thanThisfishis3timesheavierthanthatone.(8)序數(shù)詞與冠詞a/an連用。序數(shù)詞前加不定冠詞a/an,表示“又一”、“再一”的意思。如：Pleasetryitasecondtime.請(qǐng)?jiān)僭囈辉?。但基?shù)詞與more連用，并放在more前，表示“另外有”、“還有”的意思。如：I’lltakeonemore(=another)pencil.我還要一支鉛筆。We’vejuststarted!Thereweretwentymoretreestobeplanted!我們才剛開(kāi)始呢!還有20棵樹(shù)要栽呢!【考點(diǎn)詮釋】【考例1】Inourcity,___middleschoolstudentswanttoworkasateacherinthefuture.[2009年重慶]A.thousand

B.thousandof C.thousandsof

D.twothousandof

【解析】

答案為C。考查數(shù)詞的用法。thousandsof是一個(gè)詞組，意為“成千上萬(wàn)的”，表示一個(gè)大概的數(shù)量，注意這時(shí)thousand用復(fù)數(shù)，且前面不能加明確的數(shù)字?！究祭?】Theroadisover_____metreslong．[2008年濟(jì)南]A．sixhundredandfifty-twoBsixhundredsandfifty-twoC．sixhundred，fifty-two D．sixhundred，fiftyandtwo【解析】[答案]A。本題考查數(shù)詞的書寫形式。在英語(yǔ)中，百位與十位之間通常用and連接，由此可知，答案在A與B之中，在表示確切的數(shù)字時(shí)，hundred不能用復(fù)數(shù)形式。【考例3】Wearesurethe______0lympicGamesinBeijingnextYearwillbeoneof__gamesinhistory．[2007連云港]Atwenty-ninemoresuccessful Btwenty-ninth；moresuccessfulCtwenty-ninth；themostsuccessfulD.twenty-nine;themostsuccessful【解析】[答案]C。[解析]本題綜合考查序數(shù)詞表次序，基數(shù)詞表數(shù)量的用法。句意為：來(lái)年的北京奧運(yùn)會(huì)為第二十九屆奧運(yùn)會(huì)，這是不爭(zhēng)的事實(shí)，此處應(yīng)使用序數(shù)詞表順序，由此可確定答案在B與C之中；再由句意可知，后面應(yīng)是一個(gè)最高級(jí)的句子，所以C項(xiàng)正確。【考例4】Qinghai-TibetRailway(青藏鐵路)wascompletedlastyear．Itisthe___railwaythatconnectsTibetwiththe0therpartsofChina．[2008鹽城]A．first Bsecond Cthird D．fourth【解析】[答案]A。本題考查序數(shù)的用法。句意為：青藏鐵路是第一條將西藏與其他地區(qū)連接起來(lái)的鐵路干線。【考例5】HarryPotterandtheDeathlyHallows,_____bookoftheseries(系列)，willbeforsaleonJuly21．[2008湖南懷化]A．seventh B．theseventh C．seven【解析】答案：B由句意“系列叢書的第七本書將在年7月21日被出售”可知此空要用序數(shù)詞，且序數(shù)詞前要加定冠詞the，故選B?！究祭?】About__ofthestudentsinourschoolarehoys．[常德]A．thirdfifths Bthreefifths C．threefifth【解析】[答案]B。在英語(yǔ)中表示分?jǐn)?shù)的方式為“序數(shù)詞+基數(shù)詞”，如果分子大于1，則分母用復(fù)數(shù)形式?！究祭?】(2004年上海市徐匯區(qū)中考試題)About________studentsinourclasscandescribethatplaceinEnglish. A.three-fifthsB.three-fifthC.third-fiveD.third-fifths【解析】答案：A。該題考查的是分?jǐn)?shù)的表示法。分子用基數(shù)詞表示，分母用序數(shù)詞表示。分子大于1時(shí)，分母應(yīng)加-s，因此應(yīng)選A。【考例8】(2004年河北省中考試題)Nine_______poundsaweek?That’sverygood. A.hundredofB.hundredsof C.hundredsD.hundred【解析】答案：D。該題考查的是數(shù)詞的用法。Ninehundred是一個(gè)具體的數(shù)量，這是數(shù)詞不能用復(fù)數(shù)形式，后面也不能加of。所以應(yīng)選D。四．表示約數(shù)1.用tens/dozens/scores/hundreds/thousands/millionsof表示“幾十、幾百、上千、成千上萬(wàn)”等。如：Theboyboughtdozensofpencils.那個(gè)男孩買了幾十支鉛筆。Thousandsofpeoplediedintheearthquake.數(shù)以千計(jì)的人死于地震。2.用lessthan,under,below,almost,nearly,upto等來(lái)表示小于或接近某數(shù)目。如nearlytwohours將近兩個(gè)小時(shí)。3.用morethan,beyond,ormore,over,above等來(lái)表示超過(guò)或多于某個(gè)數(shù)目。如morethan100years一百多年。4.用or,orso,about,around,some,moreorless等表示在某一數(shù)目左右。如about50pens大約五十支鋼筆，amonthorso大約一個(gè)月。5.用to,from…to…,between…and表示介于兩數(shù)詞。如：Hissalaryrosefrom100dollarsamonthto120dollarsamonth.他的工資從每月100美元升到了每月120美元。_【中考演練】()1.ItissaidthatSARShaskilledmorethan________peopleworldwide.A.threehundredsB.threehundreds’C.threehundred’sD.threehundred()2.Howmanyworkersarethereinyourfactory?Therearetwo__________.A.hundredsB.hundredC.hundredofD.hundredsof()3.Whichisthesmallestnumberofthefour?_______________.A.Two-thirdsB.AhalfC.AquarterD.Three-fourths()4.Whatdoyouthinkofawar,LiMing?I’venoidea.Butit’safactthat_______peoplehadtoleavetheirhometownduringtheWarA.threethousandsB.thousandofC.thousandsofD.severalthousands()5.Weallthinkthatthe_______centurywillbringusmorehopes.A.twenty-firstB.twentieth-firstC.twenty-oneD.twentieth-one()6.Canyouwritethenumbereighty-fivethousand,sixhundredandtwenty-six?Yes,itis__________.A.856620B.85626C.58662D.58626()7.WhenwasthePRCfounded?Itwasfoundedon_________.A.July1,1921B.October1,1949C.August1,1927D.May1,1922()8.Iwas8yearsoldwhenmyfatherwas31.Thisyearmyfatheristwicemyage.HowoldamI?A.21B.22C.23D.24()9._______ChinesearelookingforwaystolearnEnglishwellbeforeBeijing2008Olympics.A.ThousandB.ThousandsC.ThousandofD.Thousandsof()10.Bothofthetworulersarebroken.Iwanttobuya_______one.A.threeB.thirdC.forthD./()11．DuringWorldWarII,aJewish(猶太)ladywasprotectedbyalocalfamilyinShanghaiinher

______.A.fifties

B.fifty

C.fiftieth

D.thefiftieth()12．--HowoftenaretheOlympicGamesheld？

--_____fouryears.A.Every

B.Each

C.In

D.For()13．I’veread______sportsnewsabouttheF1racetoday.A.two

B.pieces

C.twopieces

D.twopiecesof()14．_____thestudentsintheseprimaryschoolisaboutthreethousand,_____ofthemaregirls.

A.Anumberof;twothird

B.Thenumberof;twothirds

C.Anumberof;twothirds

D.Thenumberof;twothird()15.Theriverthroughourcity,whichisabout_________,iscleanagain.A.6000metreslongB.6000-metres-longC.6000-metre-longD.6000metrelong()16．ItisreportedthatthetrainaccidentinIndiakilled_____people.NoChinesewas_____them.A.twohundred;amongB.twohundreds;amongC.twohundred;betweenD.twohundreds;between()17．Duringtheseven-dayMayDayholiday,familieswentsightseeing.A.thousandB.thousands C.thousandsandthousandsD.thousandsof()18．—What'sonefourthandahalf,doyouknow?—Yes,it's_____.A.twosixths B.threefourths C.onethree D.threesixths()19．______ofthestudentsaregirlsinourclass．A.Twothree B．Twothrees C．Twothirds D．Secondthree()20．Thedoctorworkedfor__________aftertwelveo'clock.A.twomorehoursB.twoanotherhour C.moretwohours D.anothertwohour()21.The____WorldTableTennisChampionshipbegan____themorningofMay25,2010_______Moscow,Russia.(2010年咸寧) A.Fifty;in;in B.Fiftieth;on;in C.Fiftieth;in;on D.Fifty;on;in()22.Whatapity!LiuXiangdidn’twinthe_____hurdles（跨欄）.(2010巴中市)A.110-meterB.110-metersC.110meter()23. —CanIhelpyou? —I’dlike____________formytwindaughters.(濱州市二〇一〇) A.twopairofshoes B.twopairsofshoe C.twopairofshoe D.twopairsofshoes()24.______girlstookpartintheHappyGirlCompetitionbutonlyfewofthemsucceeded.(定西市2010年)A.MillionofB.ManymillionofC.OnemillionofD.Millionsof()25．Thereare________peopleinthesupermarket.It'ssocrowded.(2010年山東省萊蕪市)A．hundred B．hundreds C．hundredof D．hundredsof()26Doyouknowtheboy________issittingnexttoPeter?Yes.HeisPeter’sfriend.Theyarecelebratinghis________birthday.(2010年四川眉山市)A.who;ninth B.that;nineth C./;nineth D.which;ninth()27.Igotagoodpresentonmy______birthday.(2010年四川省宜賓市)A.nineB.ninthC.thenineD.theninth()28.IhearyourpenfriendisvisitingLianyungangagain.Isitthe_______timeforhim?Yes,andhewillcomeforathirdtimenextspring.(2009年連云港)A.firstB.secondC.thirdD.fourth()29.___girlstookpartintheSuperGirlcompetitionbutonlyfewofthemsucceed.A.OnemillionofB.MillionsofC.ThousandsandmillionsD.Twomillions()30.CanIhelpyou?I’dlike__formytwindaughters.A.twopairofshoesB.twopairsofshoesC.twopairofshoeD.twopairsofshoe()31.Eachofushastowritea___reporteverythreeweeks.A.two-thousand-wordsB.two-thousand-wordC.two-thousands-wordsD.two-thousands-word()32.Nowchildren,pleaseturntoPage__andlookatthe___picture.A.Twenty-three;fifthB.Twenty-three;fiveC.Twenty-third;fifthD.Twenty-third;five()33.Excuseme,couldyoutellmewherethenearestpostofficeis?Thenearestpostoffice?Youwillhavetowalk_____.A.500-metresawayB.500meterfarC.500metresfartherD.500–metre-faraway()34.Thisisabigclass,and______ofthestudentsaregirls.A.twothirdB.secondthreeC.twothirdsD.twothree()35.Duringtheentrance(升學(xué))exams,thereare____parentswaitingfortheirchildrenoutsidetheirtestcenter.A.thousandsofB.thousandofC.thousandD.thousands()36._____peoplewillwatchBeijingOlympicGamesonTVin2008.A.MillionofB.MillionsofC.FivemillionsD.Million()37.Howoldisyourson?____.Wehadaspecialpartyforhis____birthdaylastSunday.A.Nine;nineB.Nine;ninthC.Ninth;nineD.Ninth;nine()38.Thisisthe__timein__daysthathehasmadethesamemistakes.A.second;thirdB.two;threeC.two;thirdD.second;three()39.HowmanypeoplewillcometoBeijingfortheOlympicGamesin2008?It’shardtosay__people,Ithink.A.MillionofB.MillionsofC.TwomillionsofD.twomillions()40.Mother’sDayfallson___SundayofMay.A.twoB.secondC.thesecond()41.ItwasthesecondtimeforChinatosendamanned(載人的)spaceshipintothesky,butitwasthe__timeforFeiJunlongandNieHaishengtogotothespace.A.firstB.secondC.thirdD.last()42.Katelivesin__.Mineisnexttohers.A.theroomfiveB.RoomFiveC.fiveroomD.roomfive()43.Whatdoyouthinkoftheenvironmenthere?Wonderful!_____oftheland____coveredwithtreesandgrass.A.Twofifths;isB.Twofifth;isC.Twofifths;areD.Twofifth;are()44.ThePeople’sRepublicofChinawasfoundedon______.A.October1.1949B.July1.1921C.August1.1927D.December25.1950()45.Doesanelephantweigh_______?A.twoandahalftonB.twotonsandahalfC.atonsD.halfton()46.Mysisterwillhaveher_______birthdaynextyear.A.twelveB.twelfthC.twelfiethD.eight()47.Howmuchis2/3plus4/5?_______.A.Oneandsevenfifteenths17/15. B.Onesevenfifteenth17/15.C.Oneandsevenfifteenth17/15. D.Onesevenfifteenths17/15.()48.Thepocketcalculatorisonly______thesizeoftheoldtype.A.oneforthB.onefourC.onefourthD.onefourteen()49.Thisisa______road.Itis______thenewlybuiltroad.A.twenty-metres-wide,halfaswideas B.twenty-meters-width,ahalfaswideasC.twentymeterswide,halfthewidthof D.twenty-meter-wide,halfaswideas()50.Thenumberofthestudentsinourschoolis______thatintheirschool.A.twotimesasmanyas B.twiceasmoreasC.twotimesasmuchas D.twicetimesasmanyas()51.Istheyoungengineer______or______?A.overthirty…underthirty B.onthirty…underthirtyC.overthirtieth…underthirtieth D.overthirties…underthirties()52.______agotherelivedhugeanimalsontheearth.A.Severalmillionsyears B.SeveralmillionsofyearsC.Millionofyears D.Millionsofyears()53.Ittookme______tofinishreadingthemagazine.A.halfhourB.anhalfhourC.halfanhourD.halfahour數(shù)詞練習(xí)題：

(

)76.Tuesdayisthe_______dayofaweekinEnglish.

A.first

B.fifth

C.third

D.fourth

(

)77.Thereare_______seasonsinayearinourcountry.

A.two

B.four

C.second

D.fourth

(

)78.Thegameof_______OlympicswillbeheldinBeijingin2008.

A.29

B.the29th

C.the29

D.29th

(

)80._______ofthesurface(表面)oftheearthiscoveredwithwater.

A.Firstthird

B.Twothirds

C.Onethree

D.Twothree

(

)81.Thereare_______peopleinmyfamily.Weliveonthe_______floorinatallbuilding.

A.five,six

B.fifth,sixth

C.fifth,six

D.five,sixth

(

)82.Boysandgirls,wearegoingtolearn_______today.

A.FourLesson

B.thefourthlesson

C.theLessonFour

D.theFourLesson

(

)83.Mylovelydaughteris_______.

A.eightyearsoldB.eight-year-old

C.