1、小学英语序数词以及基数词和序数词的练习题基数词one,two,three,four,five,six,seven,eight,nine,ten eleven,twelve, thirteen, fourteen, fifteen, sixteen,seventeen,eighteen, nineteen这里除 eleven, twelve, thirteen, fifteen, eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen 都是由其个位数形式后添加后缀-teen构成。整数几十中除twenty,thirty, forty,fifty,eig
2、hty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-”21 twenty-one 76 seventy-six 基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式;但是,当基数词表示不确切数字, 如成 百、成千上万,三三两两时,基数词则以复数形式出现。 There are hundreds of people in the hall There are two hundred people in the hall.2. 序数词one first, two second, three
3、third, five fifth,eighteighth,nineninth,twelve twelfth为特殊形式,其它的序数词都是由其相对应的基数词后面添加“th”构成。例如: six sixth、nineteen nineteenth整数第几十的由其对应的基数词改变结尾字母y为i,再加“eth”构成。twentytwentieth thirtythirtieth表示第几十几时,用几十的基数词形式加上连字符“”和个位序数词形式一起表示。thirty-first 第三十一fifty-sixth 第五十六seventy-third 第七十三ninety-ninth 第九十九D序数词的缩写形式
4、有时,序数词可以用缩写形式来表示。主要缩写形式有。firstlst second2nd third3rdfourth4th sixth6th twentieth20thtwenty-third23rd其中lst,2nd,3rd为特殊形式,其它的都是阿拉伯数字后加上th。基变续,有规律,词尾加上th; 一二三,特殊记,词尾字母t,d,d(first,second,third);八减t(eighth), 九去e (ninth),f来把ve替(five-fifth,twelve-twelfth);单词ty作结尾,ty变成tie(twenty-twentieth);若是碰到几十几,只变个位就可以(tw
5、enty-one-twenty-first). 序数词表顺序,一般需用定冠词。基数词和序数词的练习题一、:写出下列词的序数词1. one _ 2.two _ 3. six _4.five _ 5. nine_ 6.twelve_ 7.eight _8.twenty-one _二、写出下列单词的基数词1.third _ 2.fourth _ 3.tenth _ 4.twentieth _ 5.nineteenth_6.thirty-first _三、根据句子意思填空。1. Childrens Day(儿童节) is on the _of June(六月).2. There are _months
6、(月)in a year(年).3. Teachers Day(教师节) is on the _of September(九月).4. Three plus(加) six is _.四、选择填空。( )1. My cousins birthday in on the of October. A. three B. first C. the second( )2. What date is it today? Its of April. A. twelfth B. the 12th C. 12th( )3. There are days in a week. A. the seven B. seventh C. the seventh D. Seven( )4.Sunday is the day of a week. A. one B. first C. Second( )5. Twenty-eight minus(减)six is . A. the twenty- second B. twenty-two C. twenty- second( )6. Four plus(加) is twelve. A. seven B. eight C . nine