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教学过程
Free talk
Talk about some signs on the road.
Traffic lights: ?green means go, red means stop.
（左转弯标志﹨ 停车） It means you can turn left/park here.
（禁止左转弯﹨ 停车标志）Can you turn left/park here? You mustn’t turn left/park here.
Review the story time
T: What do we learned last lesson?
Ss: last lesson, we learned some rules.
T: What are the rules? How can we cross the roads safely?
（用图片复习巩固Story time ，强化learning tips）
Ss: Rule 1: First, we must look for the zebra crossing, and then we must look at the traffic lights.
T: Sometimes we cannot find a zebra crossing, how can we cross the road?
Ss: Rule 2: We can wait on the pavement and look out for the cars and bikes.
We must look left, then right and then left again.
We can also cross the road with other people.
T: What must you not do on the road?
Ss: We mustn’t play or run on the road, it’s not safe.
Step 2 Grammar time
1.PPT 展示Q: How can we cross the road safely?
What must you not do on the road?
学生根据Story time中的内容进行自由回答,PPT 展示答句。
Rule 1: First, we must look for the zebra crossing, and then we must look at the traffic lights and wait for the green man.
Rule 2: We can wait on the pavement and we can cross the road with other people.
Rule 3: We mustn’t play or run on the road.
2.自主发现语法规律
T：Look at these rules, how can we talk about the rules? (what words do we usually use in the sentences?)
Ss: We usually use can﹨must do …or can’t﹨mustn’t do...
We also can use should or shouldn’t do…
T: After these words, we use do or doing?