Unit 7 Topic 1 Section A重庆市涪陵区龙桥中学教师 夏明淑 七个数字要牢记 : (1 , 2 , 3,8 , 9,5 ,12 )整十变 y 为 ie: (twentieth, thirtieth)二十以上末位序 : ( twenty-first, one hundred and twenty-third )1, 2, 3 要牢记 ( first, second, third )8 去 t , 9 去 e ( eighth, ninth )5 和 12 换 ve 为 f ( fifth, twelfth ) 填表格中所缺的序数词NumberNumberCardinal NumberCardinal Number Ordinal NumberOrdinal NumberWordWord11oneone1 1 stst22twotwosecondsecond33threethree3 3 rdrd55fivefivefifthfifth88eighteight88thth99ninenineninthninth1212twelvetwelve12 12 thth2020twentytwentytwentiethtwentieth2121twenty-onetwenty-one21 21 stst100100one hundredone hundredone one hundredthhundredthfirst2ndthird5th eighth9th twelfth20thtwenty—first100th January 一月 February 二月March 三月 April 四月 May 五月 June 六月July 七月August 八月September 九月October 十月November 十一月December 十二月 What day