Lesson 17 How Old Are You,Lets review,1.十二个月份,January February March April May June July August September October November December,2.序数词,1.first second third fourth fifth sixth seventh eighth ninth tenth eleventh twelfth,2.thirteenth fourteenth fifteenth sixteenth,3.twentieth thirtieth,4.twenty-first twenty-second,nhuu,1.How old are you,Im s old. Im,ten,ten,year,New words: year 年，岁 birthday 生日 birth+day,Im . Im _years old. how old are you? -Im years old,40,33,Yao Ming,forty,Thirty-thr
