Unit 3 My birthday!Part C Lets sing. Part A Lets learn. Pair work.JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberNovember DecemberOctoberLets sing a song.When is your birthday?When is New Years Day?Its January .日期日期=月份月份+序数词序数词firstWhen is Chinese Youth Day?Its May .fourthWhen is Womens Day?Its March .eighthWhen is Tree-planting Day?Its March .twelfth one two three four five first second third fourth fifth 1st 2nd 3rd 4th 5th six seven eight nine sixth seventh eighth ninth 6th 7th 8th 9th ten eleven twelve twentytenth eleventh twelfth twentieth 10th 11th 12th 20th twenty-onetwenty-first 21st 基数词基数词-序数词序数词魔法口诀魔法口诀一、二、三特殊记，一、二、三特殊记，四以上加四以上加 th八减八减t,九去九去e，f来把来把ve替，替，y须变须变ie，若是遇到几十几，若是遇到几十几，改变个位就可以。改变个位就可以。序数词简写小规则序数词简写小规则序数词简写时，序数词简写时，是数字本身加上是数字本身加上序数词最后两个序数词最后两个字母。字母。写出它们的序数词及简写。写出它们的序数词及简写。 one four five seven nine thirteen eighteen thirty fifty-twofirst ( 1st)fourth (4th) fifth (5th)seventh (7th)ninth (9th) thirteenth (13th)eighteenth (18th)thirtieth (30th)fifty-second (52nd)Look at this chart.Can you make the dialogues?June 1stOctober 1stAugust 1stSeptember 10thMay 1stDecember 25thApril 1stNovember 11th达标检测：达标检测：一、比一比谁最快。（写出下列单词的序数词）一、比一比谁最快。（写出下列单词的序数词）eight nine twelve sixteen thirty-one forty二、连词成句。二、连词成句。1. Is when independence your day (?)2. October it fifth is (.)3. in birthday is my January (.)When is your Independence Day?It is October fifth.My birthday is in January.eighth ninth twelfth sixteenththirty-first fortieth