【正文】
Learn the ordinal numbers : Talk about the birthday/the date.Aims:fourth,fifth,sixth,seventh…When is your birthday?It’s September 15th. My birthday is September 15th.Learn these numbers and find out the rules:1st first 2nd second 3rd third 4th fourth 5th fifth 6th sixth 7th seventh 8th eighth 9th ninth 10th tenth11th eleventh 12th twelfth 13ththirteenth 14th fourteenth 15th fifteenth 16th sixteenth 17th seventeenth 18th eighteenth 19th nieenth 20th twentieth21st twentyfirst 22nd