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1、,Unit 4 Topic 1What can I do for you?Section A,21twenty-one,Learn the numbers 21-29.,20 twenty,twenty-one,twenty-two,twenty-three,Learn the numbers 21-29.,twenty-six,twenty-four,twenty-five,Learn the numbers 21-29.,twenty-nine,twenty-seven,twenty-eight,Learn the numbers 21-29.,30,thirty,40,forty,90,
2、ninety,twenty,20,50,60,70,80,fifty,sixty,seventy,eighty,Look and learn.,100one hundred,101one hundred and one,151 one hundred (and) fifty-one,362 three hundred (and) sixty-two,Lets chant ! 0到12很基础，打好基础要记住; 13-19有特点,-teen来帮助： 20,30,至90，-ty结尾记牢固; thirteen,thirty分清楚; 前轻后重是十几，前重后轻是几十： 百元大钞hundred,一百两百不用
3、复(数)： 几十几，几百几，-(连字符) ，and不可丢： 这些你都记牢了，就能数到999.,212223242526272829,twenty-onetwenty-threetwenty-fourtwenty-sixtwenty-eight,30405060708090,thirty-sixtyseventy-,one hundred/a hundrednine hundred (and) ninety-nine,100101185315999,Listen and learn.,Listen and match the clothes with the prices.,cap,skirt,
4、T-shirt,pants,2. ￥16.00 ￥60.00,1. ￥18.00 ￥80.00,3. ￥17.00 ￥70.00,4. ￥15.00 ￥50.00,Look, listen and say.,Q: Where are they?,How much is it?Its yuan.,eight-eight,1. Mother wants to buy _ (shoes, clothes, gloves) for Maria.2. Maria likes _ (the red coat, the yellow skirt, the yellow coat).3. It is _ (1
5、7.00, 70.00, 700.00) yuan .,Listen to 1a and check.,Happy shopping!,Salesman: _Mother: Yes, please. I want a T-shirt for my son.Salesman: _Mother: White.Salesman: What about this one?Mother: All right. _Salesman: Twenty yuan.Mother: OK. _,Can/May I help you?,What color do you want? /Whats his favorite color?,How much is it?,Ill take it.,Make a diologA: What can I do for you?/Can I.B:I want to/like.A:What color.?B:Its/They are.A:How much.B:Its/Theyre.,small talk walk also always alreadyaunt laugh autumn August because rice city cycle cake can catback duck neck,（录音P82-3a）,