-- 基数词和序数词专项练习题 一、知识归纳 ①基数词变序数词的规律: 口诀:基变序,有规律。 一、二、三、特殊记,词尾字母t,d,d. (如:first, second, third)。 八减t,九去e,(如:eighth, ninth), f 来把ve替。(如:twelfth). 单词ty作结尾,ty变成tie(如:twentieth). 若是碰到几十几,只变个位就可以。(如:twenty-first) ②1-100的序数词: 1st--first;2nd--second;3rd--third;4th--fourth;5th--fifth;6th--sixth;7th--seventh;8th--eighth;9th--ninth;10th--tenth;11th--eleventh; 12th--twelfth;20th--twentieth;21st--twenty-first;22nd--twenty-second;29th--twenty-ninth;30th--thirtieth;31st--thirty-first;40th--fortieth;50th--fiftieth;60th--sixtieth;70th--seventieth;80th--eightieth; 90th--ninetieth;100th--hundredth 二、巩固练习: ①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 ②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 _ ③根据句子意思填空。 -- -- 1. Children’s Day(儿童节) is on the of June(六月). 2. There are months(月)in a year(年). 3. Teacher’s Day(教师节) is on the of September(九月). 4. Three plus(加) six is . ④选择填空。 ( )1. My cousin’s birthday in on the of October. A. three B. first C. the second ( )2. What date is it today? It’s 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 -- 本文来源:https://www.wddqw.com/doc/f2f7ef48bbd528ea81c758f5f61fb7360a4c2bd9.html