Integrated skills Finding treasure,New words and phrases: past prep. 在另一边，到另一侧 treasure n. 宝藏 turning n. 转弯处 traffic n. 交通，来往车辆 traffic lights n. 红绿灯 should modal v. 应当，应该 crossing n. 交叉路口 corner n. 拐角，街角；角落,2,3,4,5,Level One,Level Two,Level Three,Level Four,Level Five,Level One,Know the signs and the words.,There is always a lot of traffic on the city road every day.,go straight on,turn left,turn right,traffic lights,crossing,zebra crossing,Look at these road signs.,traffic lights,at the crossi
