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句型复习：We must look out for them.
日常用语：I see.
教学难点
词汇学习：in the middle, look out, no smoking, no swimming
句型复习：We must look out for them.
日常用语：I see.
教学过程
Pre-task preparations
1. T: Before our class, I want to show you one picture.(燃烧的火柴)What’s this?(把表示禁止的圆圈盖到上方)Look, It’s became a sign. What’s meaning of this sign?
2.拿出禁止停车和禁止拍照的标识让学生认读
T：Where can we find these signs?
S：... .
They all tell us that the things we mustn’t do.
While-task procedures
1. T: I see a lot of public signs.(出现许多公共标志牌)
T: What are they?
S: They are public signs.
Learn: public signs.
T: Let's look at some signs on the screen.（多媒体展示六个标志。）
T: Can you read them?
学生能朗读其中的四个：No smoking. No swimming. Keep quiet. Do not walk on the grass.
通过指读，齐读，快速闪现等操练形式帮助学生巩固以上四个标志名称。
2. T: (Point to a sign) What does this sign mean?
板书： What does this sign mean?
学习这句话，讲解mean的意思及其中ea的发音。再次强调助动词用does及其语法意义。
T: It means "No swimming "/….
出示No smoking标语
T: What does this sign mean?
S: It means "No smoking".
T: Yes. It means you shouldn't smoke.