2. (学生三人一组分角色朗读对话，教师板书对话中的关键词。给学生四分钟时间，让他们看着关键词表演。)

T: Now, work in groups of three. I will give you four minutes, and you should act out the dialog without your books. The key words on the blackboard may be useful. Now, let’s begin.

(学生可用自己的语言来表达，不要照搬课文原句。)

(板书)

T: Time is up. Who can act out the dialog?

(对于表达流利的学生，要给予充分的肯定和鼓励。)

T: S₁ reads well. S₂ reads better ...

Step 4 　Practice 第四步 　练习(时间: 12分钟)

学习2a，完成2b。

1. (放1a的录音，学生跟读，注意语音和语调。)

T: Please listen to 1a and follow the tape, and pay attention to your pronunciation and

intonation.

5. (教师简单复习不定式的用法后，紧接着让学生做1c。)

T: Next, please do 1c by yourselves. Hurry up!

(核对答案。)

T: OK, stop! Let’s check the answers. Who knows the answers? Hands up, please!

Step 3 　Consolidation 第三步 　巩固(时间: 8分钟)

巩固1a。

3. (教师向学生呈现对话中陈述的骑自行车的好处。)

　 T:　 Can you ride a bike?

　 Ss: Yes, I can. / No, I can’t.

　 T:　 Riding a bike can help ladies keep fit. Do you think so?

　 Ss: …

　 (让学生分组讨论骑自行车的好处和不利因素，使学生充分发挥自己的发散性思维，然后完成1b。派小组报告员发言，并给予记分。)

T:　　　　 Riding a bicycle also can help us save energy and reduce air pollution. There are many advantages in riding a bicycle, aren’t there? Now, please discuss with your partner and finish 1b. Then I’ll ask one student from each group to give a report.

　 T:　 Stop! Please give your opinions to us.

S₂:　　　 …

S₃:　　　 …

…

(教师给每组记分，说得越多越完整，得分越高。)

T: Which group can get the best result?

(学生边说教师边板书。)

2. (教师布置学生自己默读，并判断正误。)

T:　 Please read the dialog silently by yourselves, and then mark the sentences on the blackboard true or false.

(板书)

T:　 Stop! Let’s check the answers. Who can tell me? Volunteers?

1. (教师设置并板书听力任务，让学生带着问题去听，并获取有效信息，可以边听边记笔记。)

T: Kangkang saw a traffic accident yesterday. Who was hurt in the accident? Please listen to 1a with this question.

(教师板书任务。)

(检查答案。)

T:　 Now stop! Who can tell me the answer?

S₁: Many passengers were hurt in the accident.

2. (教师出示车祸的图片。)

T:　 Please look at this picture. How terrible!

What can you see in this picture?　　　　　　　　　　　　　　　　　　　　　　　　　　　　

Ss: I can see two broken buses./I can see a bus hits another bus.

T:　 What happened to them? They have an…　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 　　　　　　　　　　　　　　　　　　　　　　　　

(教师边说边板书。)

T: Now, in this class, we’ll learn about an accident.

(过渡到新课内容。)

Step 2 　Presentation 第二步 　呈现(时间: 10分钟)

呈现1a，并完成1b和1c。

1. (教师出示载有乘客的公共汽车的图片。)

T:　 Please look at this picture. What can you see in it?　　　　　　　　　　　　　　

Ss:　　　 …

T:　 Where are they?

Ss:　　　 …　　 　　　　　　　　　　　　　　　　　　　　　　　　　

T:　 Yes. They are on a bus. So we call them…　　　　　　　　　　　　 Picture 2

(教师边说边板书。)　　　　　　　　　　　　　　　　　　　　

2. (教师表演不小心撞在桌上这一动作。)

T:　 I hit the desk just now. Boys and girls, do you know the meaning of “hit”?

S₁: …

S₂: …

…

T:　 You’re quite right! If a car hits another car, what will happen?

(这一提问为呈现新动作铺垫。)

(板书并讲解。)

Ss:There will be a car accident.　　　　　　　　　　　　　　　　　　　 Picture 1

T: Very good! In this section, we’ll learn an accident. If people obey the traffic rules, there will be fewer accidents. So we all should obey the traffic rules.

(过渡到新课内容。)

(方案二)