3. (教师指导学生讨论后完成3。)

T: Please look at these pictures, discuss in groups and then I’ll choose some students to report the results to us.

2. (教师组织课堂活动，引导学生独立完成2。)

T:　 Now, we know different people have different ways to come to school or to workplaces. But all of us must obey the traffic rules. If everyone obeys the traffic rules, the road will be safer. Do you think so?

S₁:　　　 Yes, of course.

T:　 If you ride at night, what should you do?

S₁:　　　 I should use bike lights or wear light-colored clothes.

T:　 If you ride on the street, what should you wear?

S₂:　　　 If I ride on the street, I should wear a bicycle helmet.

(教师尽可能地给出多种假设或条件，让同学们试着用条件状语从句来说句子。然后总结条件状语从句的用法，提醒学生条件状语从句中动词的时态。最后让学生独立完成2。)

1. (教师随机问几名学生上学或他们父母上班的交通方式。)

　 T:　 How do you usually come to school?

　 S₁: I usually come to school by bike.

　 T:　 How do your parents usually go to work?

　 S₂: They usually drive a car to go to work.

…

2. (教师找几名学生在黑板上画出他们所知道的交通图标，其余学生说明其含义，然后独立

完成1b，并核对答案。)

T: Boys and girls. When we ride our bikes, we should obey the traffic rules. If we break the

traffic rules, it will be dangerous and we will get a fine. Let’s find out some students to

draw the traffic signs they know on the blackboard and the others to tell what they mean.

Then finish 1b by yourselves and we’ll check the answers together.

Step 4　 Practice 第四步　 练习(时间: 11分钟)

练习2，并完成3和 4。

1. (教师放1a的录音，让学生跟读。)

T: Listen and follow the tape.

(也可让学生进行人机对话。既提高学习兴趣，又能使学生掌握语音语调的准确性。)

(将学生分成小组，每组三人。让学生看黑板上的关键词，不看课本，自由表演对话内容。)

T: Work in groups of three, look at the key words on the blackboard and act out the dialog.

(教师时刻关注学生动态，及时帮助有困难的同学，保证每位同学积极参与。)

(板书)

(几分钟后，让学生看关键词, 自由表演对话。)

T: Time is up. Come to the front and act out the dialog. Be brave! Don’t be shy. Who wants to have a try?

…

2. (教师让学生互相讨论，找出对话中他们自己认为有用的短语或句子。必要时，教师给予讲解。)

T: Well done! Now please discuss with your partner and find out the useful phrases and sentences in the dialog. Now, go!

(教师板书并讲解。)

(教师可让学生多读几遍。)

T: Please read these sentences and remember them.

Step 3　 Consolidation 第三步　 巩固(时间: 10分钟)

巩固1a，完成1b。

1. (教师布置听力任务，让学生带着任务听录音，降低听力难度并使其注意力高度集中。)

T: Now, boys and girls, please look at the blackboard. Listen to 1a carefully and find the answers to the questions. Are you ready? Let’s begin.

(师生一起核对答案。)

3. (教师引导学生进入新课。首先对学生进行调查，看他们是否使用头盔、灯等来保护自己。)

　 T: Now, I want to make a survey. Do you wear bicycle helmets when you ride bikes?

(教师一边说，一边做戴头盔的动作，并板书。)

　 Ss: Yes. / No.

　 T:　 Do you use bike lights when you ride bikes at night?

　 Ss: Yes. / No.

　 …

　 T:　 If you want to be safer, you can wear a helmet, use a bike light and so on.

T: We know Kangkang saw a bike accident in Caishikou Street yesterday. And now he is telling the news to his friend. Let’s come to 1a.

(过渡到下一步。)

Step 2　 Presentation 第二步　 呈现(时间: 8分钟)

呈现1a并讲解。

2. T: Very good! You did a good job. In Section A, we learnt a bike accident. Now, do you hear of any other bike accidents?

Ss: …

T: Did you have bike accidents?

S₁: …

(某位同学可能会说: “I had a bike accident last week.”教师可适时表示关怀: Oh, I’m sorry to hear that. / Did you hurt yourself ? …)

T: Since there are so many bike accidents, what shall we do?

S₁:We should obey the traffic rules.

S₂:We must…

T: Good! If we don’t obey the traffic rules, it will be dangerous. So it’s very important for us to obey the traffic rules.

Step 1　 Review 第一步　 复习(时间: 6分钟)

复习Section A的重点话题，并导入1a。

1. (复习Section A中呈现的骑自行车的益处和不利因素。)

T: We’ve learnt lots of advantages in riding bicycles in Section A. Let’s review it.

(教师让学生思考片刻，随意抽查几名学生，说出骑自行车的好处，对说得又多又准的学生给予奖励。)

S₁: It saves money and energy. It doesn’t cause air pollution.

S₂: …

…

T:　 Well done, boys and girls! But are there any disadvantages in riding bicycles?

Ss: Yes.

T:　 Please tell us. Who will have a try?

S₁: It may make you tired. It is slow.

S₂: …

S₃: …

…

(教师对于学生的回答做出适当的评价。)