1、Unit 2 Ways to go to school第四课时第四课时crossingWhat can you see at the crossing?traffic lightstraffic lightsred lightyellow lightgreen lightRed light means stop and wait.Green light means go.Yellow light means slow down and stop.Remember the traffic rules.Stop and wait at a red light.Slow down and stop
2、at a yellow light.Go at a green light.(1)(1)表示表示“几点钟几点钟”如；如；at 7 oclockat 7 oclock (2)(2)表示表示“进餐时间进餐时间”如：如：at at lunch/dinner/breakfastlunch/dinner/breakfast (3)(3)表示一天中的某个时间点，如：表示一天中的某个时间点，如：at night at night at noon at noon (4)(4)表示某一时间点，如：表示某一时间点，如：Slow down and Slow down and stop at a yellow lig
3、ht.Stop and wait at a stop at a yellow light.Stop and wait at a red light.red light.(5)(5)表示地点，如：表示地点，如：at school,at home,at at school,at home,at the parkthe park等。等。介词介词at的用法。的用法。Work in pairs.One student choose a traffic light,the other play the police and say the rule,then do the action.Work in g
4、roups.One covers his eyes,another shows traffic lights.Others say the traffic rules.And then guess the traffic lights.Lets see which group is fast and correct.Summary Traffic rules:Go at a green light.Stop and wait at a red lightSlow down and stop yellow lightHomework 学生回家询问家长或上网搜查有关交通法规的资料，扩大学生对交通规则认识。
