精选优质文档-倾情为你奉上数词专项练习一、巩固练习:写出下列词的序数词形式。1. one _2.two _3. six _4.five _5. nine_ 6.twelve_7.eight _8.twenty-one _写出下列单词的基数词形式。1.third _2.fourth _3.tenth _4.twentieth _5.nineteenth_6.thirty-first _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(月)in a year(年).3. Teachers Day(教师节) is on the _