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教学难点：
句子重音的理解和尝试运用。
教学准备：
PPT
教学过程：
Step 1 Warm up
Sing a song Safety on the road
【设计意图：利用欢快的歌曲，将学生快速带入课堂学习的氛围】
2.Play a game: guess the words according to the sentences
T: It is black and white. People walk over it when they cross the road. It begins with the letter “z” . What is it?
S: Zebra crossing .
T: Sometimes you cannot find a zebra crossing near you .To keep safe ,you can wait on it. So what is it?
S: Pavement.
T: It is a light. When you see it , you mustn’t cross the road. What is it?
S: Red man.
T: It is a light too. When you see it , you can cross the road. What is it?
S: Green man.
T: What are they about?
S: They are about road safety.
T: Today we will go on learning Unit 4 Road Safety.
【设计意图：利用猜字谜游戏复习有关马路安全的相关知识，有效地激发学生学习英语的兴趣，揭示课题Unit 4 Road safety】
3. Non-stop talking
T: How can we cross the road safely? S: We must/mustn’t/ can/can’t…
How can we cross the road safely?
Rules: 全班分两组，30秒内连续说的最多的组获胜，句子不得重复。
一组说，另一组认真听并数句子，注意有无重复。
【设计意图：利用Non-stop talking 形式复习检测学生对本单元内容的掌握程度，准备阶段人人参与，游戏阶段很好的锻炼了学生的听说能力和团队合作能力。】
Step 2 Sound time
= 1 ﹨* GB2 ﹨* MERGEFORMAT ⑴ T: You know a lot about road safety. So I am sure you can help Bobby and Tina. What’s wrong with them? Let’s listen.（播放Bobby 和Tina的录音：Look, Bobby and Tina, there’s a telephone booth. How can we get there ? There’s no one on the road. Let’s run.）
T: Can they cross the road ? Are they right? What can you say to them, if you were the Policeman?