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教学过程教学环节教师活动学生活动设计意图Step 1
Warm up1. 通过PPT呈现以前学过的signs ，引导学生用英语来表达。
What signs can you see here?
2.（呈现标识图片）
SHAPE \* MERGEFORMAT
Where can you see them?
3. The signs are around us !So this class, let’s talk about the signs around us together. (揭示课题板书)
They mean different things. Now, let’s talk about them. I can see a lot of signs.
I can see the sign … in the ….
I can also see it in…
在轻松的交谈氛围中通过英文歌曲的渲染，创设情境，复习运用谈论公共标识的句型。Step 2
Leading-in1. Let Ss say some signs they know. Try to explain the meanings.
2.Teach some signs.
We are going to learn some new signs.
Show the signs of Look and learn.
Look carefully and try to devide the signs into two parts.
让学生仔细观察这六个标识有什么不同，并讨论如何将它们分成两大类。
Step 3
Presentation
Step 4
Practice
The first three signs tell
us we must do these things.
We can use “We should or we must”to express.
The last three signs on the right tell us we mustn’t do these things.
We can use “Don’t or You mustn’t”to express.
2.Teach: look out
If something falls down，we should look out.
3.Look at the signs and choose the sentence patterns.
1.Look at the signs and choose.