Unit 4,Finding your way,Introduce,What does the sign mean? It means it is a bridge. What about this? It means it is a street. Are there traffic lights? Yes, there are. Is there a zebra crossing? Yes, there is,Words,traffictrfk n.交通，来往车辆 eg： Traffic reaches a peak between 8 and 9 in the morning. 早晨八九点钟是交通的高峰时刻。 小练习：翻译句子。 他从报上看到了关于那个交通事故的报道。 _,He read the account of the traffic accident in the paper,Words,corner k:n(r) n.拐角，街角，角落；转角 eg： The news soon spread to the
