【最新】七年级英语上册 Unit 7 Days and months Lesson 50精 品课件（ 1） 冀教版 课件 1 2 3 4 5 6 7 8 9 10 11 12 one two three four five six seven eight nine ten eleven twelve first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth Cardinal numbers Ordinal numbers 【最新】七年级英语上册 Unit 7 Days and months Lesson 50精 品课件（ 1） 冀教版 课件 13 14 15 16 17 18 19 20 21 29 30 31 thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twenty-one twenty-nine thirty thirty-one thirteenth fourteenth fifte
