2026年人教版中考英语语法专题复习之 数词

初中语法专题复习之数词重点学习基数词和序数词的构成和用法考点一基数词一、构成：1-12

的基数词：one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve13～19的基数词，在个位数上加后缀

-teen构成，并有两个重音。thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen20～90等十位数由2-9

加后缀-ty构成。twenty,thirty,forty,fifty,sixty,seventy,eighty,ninety4.21-29由十位数20加个位数1-9

构成，十位和个位之间加连字符号"－"，其他十位数以此类推。21twenty-one、44forty-four、98ninety-eight5.“几百几十”或者“几百几十几”在“百”后加and。如：156-onehundredandfifty-six,509-fivehundredandnine等。6.四位数或者四位数以上的基数词的拼写规律：用逗号从右往左每三位加一个逗号，第一个逗号读作thousand（千），第二个逗号读作million（百万），第三个逗号读作billion（十亿）,hundred后别忘了“and”。如：3,610读作threethousandsixhundredandten94,295读作ninety-fourthousandtwohundredandninety-five二、用法：●倍数、分数、小数、百分数的表示方法：

倍数：time（s）例如：Thisroomisthreetimesaslargeasthatone.

这个房间有那个房间三个大。Threethreesarenine.orThreetimesthreeisnine.

三三得九。

分数：分子用基数词表示，分母用序数词表示，分子为2以上时，分母（序数词）应变为复数。例如：三分之一，onethird或athird；五分之三，threefifths分数短语作主语时，谓语的数由of

后面的名词来决定，名词为可数名词复数，则谓语用复数；名词为不可数名词，谓语用单数。例如：Athirdofthelandiscoveredbyforests.Twothirdsoftheworkersareworkinghard.

小数：小数点前的基数词与前面所讲的基数词读法完全相同，小数点后面则须将数字一一读出。1.25

读作

onepointtwofive0.56

读作naughtpointfivesix或zeropointfivesix

4.

百分数：百分号%读作

percent例如：5%

读作

fivepercent●hundred（百）,thousand（千）,million（百万），billion（十亿）用法：hundred,thousand,million前面有具体数字，要用单数形式，但如果它们后面有of，那它们要用复数形式，同时，前面不能再加具体的数目。巧记：有具体数字不加s,of;无具体数字要加s,of。如：twothousand

两千

thousandsof

成千上万hundredsof

成百上千millionsof

数以百万计Thousandsofpeoplehavevisitedthecity.成千上万的人参观了这座城市。●年份表示法：in1995在1995年●年代表示法：inthe1990s在二十世纪九十年代●“数词－单数可数名词”或“数词－单数名词－形容词”用"－"连在一起作定语，修饰名词，如：aneight-year-oldboy一个8岁的男孩；aseven-dayholiday一个七天的假期●在某人多少岁时的表达：attheageof+基数词如：attheageof4“几十”的复数形式可以用来表示岁数，如：inone’s+整十的复数在某人几十岁的时候如：inhisforties在他四十岁的时候inone’steens在某人十几岁的时候考点二序数词一、构成：构成方法示例1.一般情况在基数词后加-thfour→fourth2.十几-teen结尾加-ththirteen→thirteenth3.整十数：基数词尾-ty,改y为i+ethtwenty→twentieth4.遇到几十几，只需把个位变序数词twenty-four→twenty-fourth5.百、千、百万直接加thhundred→hundredththousand→thousandthmillion→millionth特殊情况变化one→firsttwo→secondthree→thirdfive→fiftheight→eighthnine→ninthtwelve→twelfth（序数词的缩写：由阿拉伯数字加上序数词最后两个字母构成。如：first→1st；second→2ndthird→3rd；fourth→4th）*巧记方法：一二三单独记，从四开始加th；五、十二f来把ve替，八加h九去e；整十变化需注意，ty要变tie再加th。若是遇到几十几，只变个位就可以。二、用法：1.序数词前通常加定冠词the。但如果序数词前有my,your等物主代词或名词所有格等限定词时，不加定冠词the。2.序数词前有时也用不定冠词a或an，表示“再一；又一”。如：Theyhavetwochildren,andnextyeartheywillhaveathirdchild.3.序数词表示日期，日期可按“日，月，年”的顺序，也可按“月，日，年”的顺序。“日”可用阿拉伯数字，也可用缩写形式的序数词。如：April1st，2021；2May,2022考点三数词的其他用法数词前加every表示“每一段时间或每隔一段时间”。如：everytendays/everyninthday每10天／每隔9天。表示倍数关系。“一倍”是once；“两倍”是twice；表示三倍或三倍以上的倍数用“数字+times"-如：三倍threetimes；十倍tentimes。与数目有关的词。如：half一半；second秒；aquarter四分之一；several几个；afew几个；adozen一打；ascore二十个。特殊短语。如：halfanhour半小时；twoorthreehours=twohoursorthree两三个小时；fourandahalfyears=fouryearsandahalf四年半【活学活用】写出下列数词的序数词one__________two__________three__________five__________twelve_________eight__________nine__________fourteen__________twenty__________sixty-six_________four________seven________fifteen__________hundred______【典型例题】一、用所给词的适当形式填空Theyliveonthe_________(five)floor.________________(hundred)ofpeoplecomeheretoreadbooksonweekends.Onmysister’s_______________(nine)birthday,Igaveherausefulbook.Abouttwo________________(thousand)treeshavebeenplantedalongtheriver.Three______________(four)ofthestudentsinourclasslikebasketball.–Howoftendoyougotothemountain?--___________(two)amonth.Father’sDayisonthe____________(three)SundayofJune.Shebecameveryfamousinher_________(forty).Theyliveonthe________________(32)floorofthetallbuilding.Inthe_____________(eight)picture,youcanseemanyyoungtrees.单项选择题1.A_____girlnamedDongXinyilookedafterherdisabledfather.A.three-year-old B.three-years-old C.threeyearsoldD.three-yearold2.About____ofthestudentsinGradeNinethisyearwereborninthe_____.A.threefive;1996B.threefifths;1990sC.thirdfifth;1997D.thirdfifths;1990s3.The______OlympicGameswasheldinLondononJuly27,2012.A.thirtyB.thirtythC.thirtiethD.thirtith4.Everyyear,_________farmersgotobigcitiestoworkA.hundredB.hundredsC.hundredofD.hundredsof5.Pleaseturntopage______andlookatthe______pictureinthisunit.A.twentieth；oneB.twenty；oneC.twentieth；firstD.twenty；first6.Thereare_______teachersinourschool,_______ofthemarewomenteachers.A.twohundreds;threefourthB.twohundred;threefourthsC.twohundred;threeforthsD.twohundred;threefourth7.Wewillhavea______holidayaftertheexam.A.two-monthsB.twomonthsC.two-monthD.twomonths’8.Thereare______daysinaweekandTuesdayis________dayoftheweek.A.seven;thirdB.seven;thethirdC.seventh;threeD.theseventh;threeHowwasyourweekend?Great!Itwasmygrandfather’s________birthday.Weenjoyedourselves.A.seventyB.seventiethC.theseventiethD.seventeenth10.______ofhisworkswerewritteninhis_______.A.One-third;fiftiesB.One-third;fiftyC.One-thirds;fifties课后巩固练习一、填入所给名词的正确形式It’sthe________________(thirty)songthathehaswritten.Decemberisthe_______________(twelve)monthoftheyear.Wednesdayisthe_________________(four)dayofaweek.My_____________(one)nameisLinda.Whataboutyou