Unit 2 Ways to go to school What

全解全析 Unit 2 Ways to go to school 第四课时

What can you see at the crossing? traffic lights crossing

traffic lights red light yellow light green light

Red light means stop and wait. Yellow light means slow down and stop. Green light means go.

Remember the traffic rules. ØStop and wait at a red light. ØSlow down and stop at a yellow light. ØGo at a green light.

介词at的用法。 (1)表示“几点钟” 如；at 7 o'clock (2)表示“进餐时间” 如：at lunch/dinner/breakfast (3)表示一天中的某个时间点，如：at night at noon (4)表示某一时间点，如：Slow down and stop at a yellow light. Stop and wait at a red light. (5) 表示地点，如：at school, at home, at the park等。

Work in pairs. One student choose a traffic light, the other play the police and say the rule, then do the action.

Work in groups. One covers his eyes, another shows traffic lights. Others say the traffic rules. And then guess the traffic lights. Let’s see which group is fast and correct.

Summary Traffic rules: Go at a green light. Stop and wait at a red light Slow down and stop yellow light