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1、Part B lets learnTurn rightCrossingNo carsNo parkingNo bikes Go straightTurn leftTraffic SignsWhat are these?traffic lights 交通信号灯交通信号灯red lightyellow lightgreen lightWhat do they mean?green light go at a green lightred light stop and wait at a red lightDont go at a red light.You must（必须）（必须）stop and
2、 wait.yellow light slow down and stop at a yellow lightDont go at a yellow light.You must（必须）（必须）slow down and stop.traffic rules（规则）（规则）traffic lightsRemember the traffic rules.Look at the traffic lights.red lightyellow lightgreen lightGo at a green light.Stop and wait at a red light.slow down and
3、stop at a yellow light.Remember（记住）the traffic rules.the traffic rules.at the traffic lights.at a yellow light.at a green light.at a red light.1.Look5.Remember（记住）（记住）3.Stop4 slow down2.GoLook,the light is _.Can I go?Now the light is _.The light is _.redyellowgreenNo,you cant.You must _ and _.No,you cant.You must _ and _.Yes,you can.Can I go?Can I go?stopwait slow downwaitLets learn必须必须