Starting Line StudentsBook 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；惯例 Touch 触摸；碰 footbridge 人行桥 Climb 爬，攀登 fence 护栏 Careful 小心的；仔细的 clime over 翻越 Dangerous 危险的 safe 安全的 Sidewalk 人行道 stop 停止 Crosswalk 人行横道 cross 穿越，横跨,footbridge,cross walk,sidewalk,footbridge,Climb over,underpass,play with fire,Traffic light,Be ! Its dangerous. Dont the tree. Dont the wire. Its dangerous. Its dangerous. Dont slide ! Dont . Its dangerous,WORD BOX,climb, careful, play w
