Unit8SectionA1a-2d学习材料任务一将基数词变序数词顺口溜补充完整。基变序，有规律：一二三变字体,th从_______起;八减_____，九去_______,______来把______替，整十很好记，变______为______;要是遇到几十几，只变______就可以。任务二读序数词表，然后写出下列基数词的序数词。one______two________three______five________eight_______nine_______twelve_______fifteen_______eighteen________twenty__________twenty-one_______________twenty-two______________任务三听书上2c录音，补全对话Mr.Smith:Now,Alice,howoldareyou?Alice:I’m_________________.Mr.Smith:Whenisyourbirthday?Alice:It’son_________________,Mr.Smith.Mr.Smith:Oh,OK.And_________________Frank?Alice:Frankisn’theretoday,buthisbirthdayison__________________.Mr.Smith:Thankyou,Alice.AndEric?Eric:Mybirthdayison___________________.Mr.Smith:OhJanuary17th.OK.AndJane,whenisherbirthday?Eric:Herbirthdayison_____________________.
