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1. 教学重点：
1）学习英语数字ten ~ thirty-one的表达方式，并能在实践活动中进行运用。
2）阅读服装商店的促销广告，并能获得其服装的价格等相关信息。
3）在较为真实的购物情景下，能运用所学的语言知识进行购物交际活动。
2. 教学难点：
1）阅读服装商店的促销广告，并能获得其服装的价格等相关信息。
2）在较为真实的购物情景下，能运用所学的语言知识进行购物交际活动。
三、教学过程
Ⅰ. Warming- up and revision
1 . First let students repeat the numbers 0-9. Then have a free talk. And then ask different students to imitate a shopping scene in a store, talking about clothing and prices in pairs. Show the following clothes and prices on the screen: this purple sweater ($5), that red bag ($8), that yellow shirt ($6), these blue trousers ($ 7), those black shoes ($9), those white socks ($2).
S1: How much is this purple sweater?
S2: It’s five dollars.
S1: How much are these blue trousers?
S2: They’re seven dollars.
Ss ask and answer about all the clothes in pairs.
Ⅱ. Listening
1. T: We have learned the numbers 0-9. Today we’ll learn the numbers 10-31 in la, Section B. Listen to the recording and repeat the numbers.
(Play the tapes for the Ss to listen and repeat them. Ask students to listen to the recording and learn the numbers.)
2. Then point to some numbers and ask students to say them out. Ask students to finish writing the numbers individually.
3. Tell Ss that some of the numbers are in the wrong order. Check the answers.
4. Let Ss find out the rules of the numbers.
① 13~19 规律：个位数字后加 teen；注意：thirteen, fifteen, eighteen的差别。
② 21～29及31~39等数字的规律：twenty或thirty后加连字符，再加个位数
③ 20、30等表示几十的数，大部分构成形式为：个位数后加ty，注意twenty, thirty, fifty等。
Ⅲ. Game
1. T: Now let’s play a number game. Count the numbers from one to thirty-one. But when you count to the multiples of “7” or the numbers which contains “7”, you should hot count, instead, say “next”.
e.g. one, two, three, four, five, six, “next”, eight, nine, ten ... thirteen, “next”, fifteen, sixteen, “next” ...
2. Ss work in groups of ten to twelve people and play the game.
Ⅳ. Listening
1. T: Next you will hear a mother and a daughter talking about buying clothes. First listen and circle the numbers you hear in 1a.