Starting Line Students'Book 7
Unit 5 Safety
Lesson 27
play with fire 玩火     underpass 地下通道downstairs 往楼下；在楼下   rule 规则；通例Touch 触摸；碰        footbridge 人行桥Climb 爬，攀登        fence 护栏Careful 小心；仔细  clime over 翻越 Dangerous 危险       safe 安全Sidewalk 人行道        stop  停顿Crosswalk 人行横道     cross 穿越，横跨
footbridge
cross walk