小学升初中英语序数词讲解及练习题(共5页).doc

精选优质文档-倾情为你奉上小学升初中英语序数词讲解及练习题一. 序数词 1. 基数词变序数词的规律 ： 基变序，有规律。 一、二、三、特殊记，词尾字母t,d,d.(first, second, third)。 八减t,九去e,（eighth, ninth）, f 来把ve替。（twelfth）. 单词ty作结尾，ty变成tie(twentieth). 若是碰到几十几，只变个位就可以。（twenty-first） 序数词 专心-专注-专业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-