六年级上册英语课件－lesson 6《it’s on the fifth floor》｜科普版（三起） (共15张ppt).ppt
课件15张PPT。Lesson 6
It’s?on?the?fifth?floor 序数词的变化1 one -----first
2 two------second
3 three----third
4 其余的序数词都是由基数词后加-th 变化而来的吗？
first 1st
second 2nd
third 3rd
fourth 4th
fifth 5th
sixth 6th
seventh 7th
eighth 8th
ninth 9th
tenth 10theleventh 11th
twe...