The fourth period（第四课时）

Part B Let’s learn & Role-play

教学内容与目标

教学重点

1. 能够了解基本的交通规则，即红、黄、绿灯的功能，并能根据英文指令做动作。
2. 能够理解和掌握本课重点词汇和句型。

教学难点

1. 理解动词stop和wait的含义。
2. 能够在情景中恰当运用句子“Slow down and stop at a yellow light. Stop and wait at a red light. Go at a green light.”表达交通指示灯的作用。

教材学情分析：

本课时与前一课时紧密相连。继续围绕“交通规则”这一话题展开，主要通过对话学习表达要遵守的交通规则的句型…must和Don't…学习了解欧美国家骑自行车的注意事项，了解不同的交通警示标志和这些标志出现的场所，培养学生学习美语的兴趣，继续向生渗透德育教育。

内容分析

本课时包括Let's try和Let's talk两个版块。Let's try通过Mrs Smith先生上公共汽车时的交谈交代了吴一凡因为生病不能和他们同行的内容，为BLet's talk和Read and write情节的展开做铺垫。生通过听力练习获得B Let's talk版块的人物及场景信息为进入正式的对话学习做好准备。

设计理念：

本课时涉及了前交几个课时的内容，在设计本课教学过程我采用词卡认读，游戏等方法，帮助生复习和巩固学过的知识，对话学习采用整体感知对话、局部处理语言、分角色表演对话等方法，充分发挥业的主体作用。巩固练习采用“我会对他说“中外交通规则知多少”“画画”等活动，调动学生学习的积极性，扎实和拓展学生的知识。

教学准备

1.预习本课时的相关内容。

2.PPT课件､课文录音､视频、卡片、模拟红绿灯等。

教学过程

Step 1: Warm-up & Revision & Lead-in①

1. Greetings.

2. Let’s sing and do.

Play the song—Rabbit Dance. （出示课件） Let students stand in a line and do the actions with the music. “Left—left—right—right—go—turn around—go—go—go!”

3. Lead-in.

(1)Review the traffic rules.

Show the pictures. (课件出示：上节课学过的交通标志图片) Let students look and say.

(2)Lead-in.

T： (课件出示：交通信号灯图片) What are these?

Ss：Traffic lights.

T：Yeah. They are traffic lights. What colour are they?

Ss：Red, yellow and green.

T：Yes! Do you know what the lights mean? You can speak in Chinese.

Ss：红灯停，绿灯行……

Step 2: Presentation

1. Look and predict.②

(1)Show the pictures of “Let’s learn” on the PPT.  Ask students to predict the main idea of the dialogue. （课件出示：教材P17 Let’s learn板块的图片）

(2)Let students observe the pictures and discuss the questions.

Questions: Who are they? Where are they? Where are they going?

(3)Ask students to answer the questions on the PPT. （出示课件）

2. Learn the traffic lights.③

(1)Play the recording. （课件出示：教材P17 Let’s learn板块的音频）Let students listen and check the answers to the three questions.

T：Who are they?

Ss：Mrs Smith and the children.

T：Where are they?

Ss：They are at the crossing.

T：Yes! Do you know where they are going?

Ss：To the nature park.

T：Can they go now?

Ss：No, they can’t.

T：Why?

Ss：Because the light is red now.

T：Well done! So what must we do when it is a red light?

Ss： …

Show the chart on the PPT. （出示课件）

T：And what must we do when it is a yellow/green light?

Students answer by themselves.

(2)Show the following diagram to help students know the traffic lights. What do the colours mean?

3. Learn the new words and the phrase.

Play the recording again.  （课件出示：教材P17 Let’s learn板块的音频） Then teach the words and the phrase “stop, wait, slow down, go”.

(1)Use the gesture to help students understand the word “stop”.

Ask two students to come to the front of the blackboard. Say “go” to let the two students go straight, then show the gesture and say “stop” to let them stop. Then one student says “go” “stop”, and the other student follows the instructions.

(2)Show a picture of someone who is waiting for the bus at the bus stop.（出示课件） Use some sentences to help students understand the word “wait”.  Make a model:

Lucy is waiting for the bus./The little lion is waiting for his father.

Let’s chant: A red light, a red light.

Stop and wait at a red light.

(3)Do the actions and say some sentences to help students understand the phrase “slow down”.   Make a model:

Look! It’s the yellow light. We must slow down.

Let’s chant: A yellow light, a yellow light.

Slow down and stop at a yellow light.

(4)Show a picture of the green light to students. （课件出示：绿灯亮图）

T：What should we do at a green light?

Ss：We can go.

Let’s chant: A green light, a green light.

Go at a green light.

4. Fill in the chart.

Students fill in the chart together. （出示课件）

5. Read and act.④

(1)Let students read after the recording. Pay attention to the pronunciation and the intonation.

(2)Let students practice the dialogue in roles.

(3)Let students act out in groups.

(4)Let students retell the dialogue in “Let’s learn” and encourage them to create new dialogues.

Step 3: Practice

1. Practice the phrases and the sentences.⑤

Take out the paper traffic lights. Let students look, do and say in pairs.

(1)Look and do. Student A puts up the lights one by one. Student B does the actions. Then exchange.

(2)Do and say. Student A points to the lights. Student B says and does the actions. Then exchange.

2. Let’s do role-play.⑥

(1)Make four students in a group. Choose one student as the policeman to hold the traffic lights and say. Another student works as a blind man. The other two students help the blind man and say. （课件出示：教材P17 Role-play板块的图片）

(2)Make a model:

Policeman: Red light.

The other two students (stop and say): Stop and wait at a red light.

Policeman: Yellow light.

The other two students (slow down and say): Slow down and stop at a yellow light.

Policeman: Green light.

The other two students (go straight and say): Go at a green light.

(3)Practice in groups.

(4)Show time.

Step 4: Consolidation & Extension⑦

“Make a traffic bulletin board”

1. Show a model on the PPT.
2. Let students work in groups to make a bulletin board.
3. Let students show the bulletin boards to the class.
4. Choose the best group and give an award.

板书设计

作业设计

Read after the recording.

1. Tell the traffic rules to your friends and parents.
2. Do the exercises.

教学反思