小升初英语数词专项讲解及练习

数词数词的种类数词分基数词和序数词基数词是表示自然数列的词,例如;one、two、three、four…..序数词是表示先后顺序的词,例如:first、second、third、fourth…二基数词和序数词的表示法1．基数词单词的拼写：1~12为单词onetwothreefourfivesixseveneightnineteneleventwelve13~19都以后缀-teen结尾，20至90这样的整十数都以后缀-ty结尾，其他基数词中间加连字符号“-〞再按照上述的变化进行。例：21→twenty-one56→fifty-six85→eighty-five三位数的构成为：几+百+and+末两位〔或末一位〕数例：132→onehundredandthirty-two205→twohundredandfive千以上的数字的读法：从后面往前，每三位数作为一个单位，分别为thousand、million.32、548、652、读作：1.thirtytwomillion2.fivehundredandfortyeightthousand3.sixhundredandfiftytwo序数词=基数词+th(1、2、3为first、

second、third)。数词分基数词和序数词但以下几种情况要注意：1)fifth(第五)、eighth(第八)、ninth(第九)、twelfth(第十二〕2)以ty结尾的基数词变词尾为tieth例：twenty→twentieth

ninety→ninetieth序数词表示十位与个位数时，十位与个位之间用“—〞3)复合序数词只需要将相应基数词中最后一位变成序数词，其余不变。例：第二十一→twenty-first第二百四十五→twohundredand

forty-fifth三基数词序数词的用法1.hundred、thousand、million与数字连用，表示一定量的具体数字，不用复数，但表示不定概念可用复数例：threehundredpeoplemillionsofpeople2.基数词表示时刻。例：7点seveno’clock7:20seventwenty3.给某些事物编号例：LessonOne=thefirstlesson7月1日=JulyI(JulyIst)1996年6月3日=June3,1996=Junethethird,nineteenninety-six4.in+one’s+整数数词的复数形式表示年龄例：Theoldwomanisinhernineties.Heishisearlyforties.5.有关倍数表示法两倍用twice,三倍以上用数词+times,要注意倍数在句子的位置。例：例：Thedooristhreetimesthesizeofthis.Heisdoublemyage.数词－Practice练习吧写出以下数词对应的英语形式。单项选择〔〕1.Thereare____daysinaweek.A.thesevenB.seventhC.theseventhD.seven〔〕2.Ithinkthatthe_____century(世纪)willbringusmorehopes.A.twenty-oneB.twentieth-firstC.twenty-firstD.twentieth-one〔〕3.--Howmanystudentsarethereinyourschool?--___thestudentsinourschool_____overtwothousand.A.Thenumberof;isB.Thenumberof;areC.Anumberof;isD.Anumberof;are〔〕4.Thenewstudentisin_____.A.Class2B.ClassSecondC.2ClassD.class2〔〕5.--Howmanyteachersarethereinyourschool?--_____,butI’mnotsure.A.HundredsB.HundredC.HundredsofD.Onehundred〔〕6._____oftheteachersinourschoolisaboutonehundred,andofthemare___womenteachers.A.Thenumber,two-thirdsB.Thenumber,two-thidC.Anumber,halfD.Anumber,three-quarters〔〕7.--Dad,whenwillyoubefree?--Iamsorry,Jean.ButIthinkIwillhavea___holidaysoon.A.four-daysB.four-dayC.fourdaysD.fourday〔〕8.FanZhiyi’stransfertoDundeeFootballClubattheendoflastyeararoused(激起)____Chinesepeople’sinterest.A.thousandofB.thousandC.thousandsofD.thousands〔〕9.Thisstoryhappenedon____.A.1989,Oct21stB.Oct.21st,1989C.21Oct,ber,1989D.21stofOctber,1989〔〕10."Sevenfive"canbewritten____.A.fivesevensB.fivetosevenC.sevenfivesD.fivepastseven〔〕11.TheEnglishfor10,440is____.A.tenthousand,fourhundredsandfortyB.tenthousand,fourhundredandfortyC.tenthousands,fourhundredandfortyD.tenthousandandfourhundred,forty〔〕12.____oftheworkersinthefactoryisabouttwohundred,____ofthemare_____womenworkers.A.Thenumber,first-thirdB.Thenumber,one-thirdC.Anumber,halfD.Anumber,threequarters〔〕13.---Canyouwritethenumbereighty-fivethousand,sixhundredandtwenty-six?---Yes,itis____.A.85662B.85626C.85006D.85620〔〕14.About____ofthebooksinourschoollibraryarewritteninChinese.A.Fourth-fifthsB.four–fifthC.four–fifthsD.fourths-fifth〔〕15.Theroadisover____meterslong.A.sixhundredandfifty-twoB.sixhundredsandfiftytwoC.sixhundred,fifty–twoD.s