初中英语数词讲解及习题

1、数词的用法一.基数词。表示人或事物数目多少的词。1。基数词的读法。1)1-1：onetwothreefourfivesixseveneightnineteneleventwelve2）1319词尾加-teen：thirteenfourteenfifteensixteenseventeeneighteennineteen3）2090词尾加ty：twentythirtyfortyfiftysixtyseventyeightyninety4)21-99：在十位与个位之间加连字符构成.21twenty-one99-ninety-nine5)101999：先说几百,再加and,再加末端两位数或个位数.1

2、01onehundredandone238twohundredandthirty-eight6）1000以上的数：先将数字从右往左数，每三位数用一个逗号分开，从右往左第一个逗号表示“千”读thousand第二个逗号表示“百万读million第三个逗号表示“十亿”读billion18,657，421eighteenmillion,sixhundredandfiftyseventhousand,fourhundredandtwentyone。二。序数词,表示人或事物的顺序的词.基数词变序数词的口诀:基变序,有规律,词尾要加th；一二三,特别记,(firstsecondthird)八去t,九去e,v

3、e要用f替；ty变作tie,再加th莫忘掉；若是遇几十几,只变个位就可以。三。数词的应用。1.表编号.结构：名词(首字母要大写)+基数词=the+序数词+名词LessonOne=thefirstlesson注：有些编号，一般仅用第一种表达法.101号房间Room1012。序数词前一般加定冠词the但序数词前与不定冠词a/anYouvedoneitthreetimes。Whynottry_fourthtime连用时，表示“又一,再一？A.aB.anC.theD./3.数词前加every，表示每/每隔:every+基数词+复数名词=every+（序数词-1）+单数名词everytendays=ev

4、eryninthday每十天(每隔九天)4。基数词的复数形式表示年代和岁数1）表示年代：inthe+年份的复数在几世纪几十年代.2）表岁数:inones整+十的复数表示在某人几十岁时5.hundred/thousand/million/billion的用法1).若hundred/thousand/million/billion前有基数词时，以后不加s，也不加of。若没有时,既加s也要带of.Everyyear_visitorscometoChina.Therearetwo_studentsinourschool。A。thousandB.thousandsC。thousandsofD。thous

5、andof2）.若其前有afew、many、several修饰时，以往用复数，后接of。3）。若名词前有the修饰时，用单数，后接ofTwo_thestudentsinourschoolarefromthecountryside。A.hundredB.hundredofC。hundredsofD.hundreds16。几个半的表达法:基数词+and+ahalf+名词复数=基数词+名词（单数/复数）+and+ahalftwoandahalfhours=twohoursandahalf7。时刻表达法：1）整点：基数词+oclock几点几分:A）顺读法:先读小时，后读分钟3：25-threetwen

6、tyfive）。逆读法：a）30分钟。分钟+past+小时3：25-twentyfivepastthreeb)30分钟.（60分钟)+to+（小时数+1)3：55-fivetofourc）30分钟=half15分钟=aquarter45分钟=threequarters3:30-halfpastthree3：15-aquarterpastthree3:45-aquartertofour8。日期的表达:结构:1)。月日，年（日用序数词，年用基数词）注：年份的读法:先读前两位数，再读后两位数。读日时要加the。1900-nineteenhundred1807-eighteenandseven（eig

7、hteenoseven)2008-twothousandeight2007年3月21日。-Marchthetwentyfirst，twothousandandseven。2）.日月年(the+序数词+of+月，年)2007年3月21日-thetwentyfirstofMarch,twothousandandseven。9。分数的表达:1）.结构:a)。分子用基数词，分母用序数词.b).当分子大于1时,分母加复数.3/4threefourths（threefourths)2).分数词的几种特别形式。1/4-onefourth=aquarter1/2onesecond=ahalfb）。分数词作主语

8、时，谓语动词依据分数词后边的名词来确立.稳定练习：一.把以下短语译成英语：1。第12课_2.304号房间_3.半小时_4。每一天三次_5.第25页_6.20世纪90年代_7.4路公共汽车_8.第15中学_9.21世纪_10.两吨半_11.差一刻三点_12。第二册_13.在他五十几岁时_14。二年级八班_15。10:45_16。第十五单元_17.第三册第十三课_18.三分之一_19.三百英镑_20。1994年3月22日_二.完成以下句子。Tomlefthome_（20年前）.YouvebeenwatchingTVfor_(半小时）。3）WewenttothePalaceMuseumby_(52路

9、公共汽车).24)PeterwasborninParison_（1975年3月4日)。5)Totellyouthetruth，wevebeenthere_(不过一次）。6)Ittook_（两万多）workers_（14年）tofinishthebuilding.Hebought_.(6片面包、一盘鱼、一杯牛奶和两杯茶）。8)Thatboxisabout_（3米长、2米宽）。9）Thereisabigstone_(前面大约40米处）.10）Its_(9点1刻).1l）Hestudiesat_(第35中学）.12）_(三分之一的医生)inthishospitalareolddoctors.13）I

10、ttookus_(3刻钟)togetthere.14)_(第100位）studentisthetallest。15）Nowletsturnto_（43页）.三、单项选择(）1.Lincolnwasbornon_。A。February12,1809B。1809，February12C.1809,12FebruaryD.February1809,12（)2。A_boycansingtheEnglishsongverywell。A.tenyear-oldB.tenyearsoldC。ten-year-oldD.fifthyearsold（)3.Anhourlater,_ministerwassent

11、toseethe“magiccloth”wovenbythosetwomen。A.twoB.thesecondC.thetwoD。second(）4。AbrahamLincolnwas_PresidentoftheUnitedStates。A。16B。the16C.16thD。the16th()5.Doyouthinkthereisanyroomforus_?A.twoB.thetwoC.secondD.thesecond(）6。Howmanystudentsarethereinyourclass？_.A。TwentynineB。ThirtyandtwoC.FortyfiveD.fifties

12、（)7。Whichnumberiswrong？_。A。NinetyB.NinteenC.NinthD.Nineteenth()8.ThePeoplesLiberationArmywasfounded。_A.onAugust1，1927B。in1927，1AugustC。onAugust1st,1927D。inAugust1,1927(）9.Thenumber4,123isread_。A.fourthousandonehundredandtwenty-threeB.fourthousandandonehundredtwenty-threeC。fourthousandandahundredandt

13、wentythreeD。fourthousandsahundredandtwenty-three()10。Theoldprofessorstillworkshardthoughheis_.A。inhissixtyB。inhissixtiesC.insixtiesD。inthesixty（）11。Thisclassroomis_ours.3A。threetimesbigasB.asthreetimesbigasC。threetimesasbigasD.asbigthreetimesas（）12。Thebasketballteamofourschoolranks_inthematch.A。thre

14、eB.thirdC。thethreeD。thethird)13.Whichisthecarthathedrives？Its_。A.fiftytwoB。thefifty-twocarsC。thecarfiftyfourD。thefifty-fourthcar（)14.Whichofthefollowingiswrong？_。A.Heisafifteen-yearoldboy.B.Heisattheageof15。C。Heisaboyof15。D。Heisfifteenyearold。（）15.Ourschoolisnotverybig.Thereareonly_students。A。ninehu

15、ndredsofB。ninehundredC。ninehundredsD.ninehundredof)16。Howmanynewwordsaretherein_lesson?Thereareonly_.A。five；fifthB。fifth；fiveC。thefifth;thefiveD.thefifth；five(）17._，Coca-ColabegantoenterChinasmarket.A.In1970sB.In1970sC.Inthe1970sD。Inthe1970s()18.Therewasnobusinthatsmalltown.Wehada_.A。tenmileswalkB。t

16、enmilewalkC.tenmileswalkD.tenthmilewalk(）19。Todayisthefirstdayand_。A。TuesdayisfourthB.ThursdayisthefourthC。secondisTuesdayD。asecondisThursday（）20。Whichroomdoyoulivein?_。A.The201RoomB.Room201C。Room201stD.The201sRoom()21。Howmanymagazinesdoyouhave？Ihave_.A.twoB。bothC.twiceD。thesecond（）22.Threehundredth

17、ousand,onehundredandseventymeans_。A。3，170B.3，117C。300，170D.30,170)23.OnMay_，_peopletraveledroundthecountry.A.thefirst,millionsB.thefirst,millionsofC。first，themillionthD.first，millions（）24._ofthemarediningatschool。A。TwelveB.TwelfthC.ThetwelveD。the12th)25.Its7:17isread_.A。sevenandseventeenB。sevenseven

18、C.sevenonesevenD.sevenseventeen()26.Four_twoistwo。A.plusB.minusC.timesD。dividedby（)27。Three_fiveiseight。A。plusB。minusC.timesD.dividedby（)28。Three_sevenistwentyone.A.plusB。minusC。timesD.dividedby(）29。Fortytwo_sevenissix。A.plusB。minusC。timesD.dividedby4()30。Thereare_daysinayear.A。threehundredsixtyandf

19、iveB.threehundredandsixtyfiveC.threehundredsandsixtyfiveD.threehundredsixtyfive()31.Thereare_studentsinthatschool。A。twothousandeightsixB。twothousandeighty-sixC。twothousandandeighty-sixD.twothousandsandeighty-six()32。Ittookme_togetthere.A.twohoursandahalfB。twohoursandhalfC。twohourandahalfD。twohourand

20、half(）33.Septemberis_monthoftheyear.A。theninethB.theninthC.ninethD。ninth(）34。Pleasepassme_bookontheleft.A.thirdB。threeC.thethirdD。thethree（)35._isaverytallboy.A。ThetwelveB.ThetwelvethC。ThetwelfethD.Thetwelfth(）36.Wehaveknowneachotherfor_.A.ayearandhalfB.ayearwithhalfC。ayearandahalfD。ayearwithahalf（）

21、37.“Whatyearis？it”“Its_.”A。nineteenhundredandninety-sevenB。nineteenandninetysevenC。nineteenninetyandsevenD.nineteenninetyseven)38.“Whatsthedatetoday?“”Its_.”A。TuesdayB.JuneFourthC。JunethefourD.Junethefourth（)39.ThetrainfromShanghaiwillarrive_。A。inquarterpastsixB.inaquarterpastsixC.atquarterpastsixD.

22、ataquarterpastsix（）40.Myfriendwasbornon_.A.threeofJuly，1979B。thethirdofJuly,1979C。1979,JulythethirdD。1979，thethirdofJuly(）41。_islessthan_.A。Onethird；twothirdsB.One-third；two-thirdC.First-three；first-threesD。Onethird；one-three)42.Whichlessondidyoulearnyesterday？_。A。LessonSevenB。LessonseventhC。The7LessonD.7Lesson()43。“Whatsthedatetoday?“Its_.A.thefourthofmayB.thefourthMayC。MayfourD.Maythefourth()44.334isread_。A。threehundredsandthirtyfourB.threehundredsthirtyfourC。threehund