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1d. 。在莉薩所買的東西上打勾 ( )。Unit 7 How much are these socks?Section B 1a–2cThe Third PeriodAims and Language points:n 1. Learn these words and be able to say, read and write these words:n ten, eleven, twelve, thirteen, fifteen, eighteen, twenty, thirtyn 2. Be able to read and say these words: n sell, buyn 3. Be able to talk about clothing and prices liken How much is the white bag? n It’s seventeen dollars.n How much are these green sweaters?n They are only $12!Woman: _____________________Mary: Yes, please. I need a __________ for school.Woman: OK. What color do you want?Mary: __________. Woman: How about ___________?Mary: It looks nice. _______________? Woman: Nine dollars.Mary: ________. How much are those __________? Woman: ____________________ and eight