精选优质文档-倾情为你奉上高三英语阅读理解专项训练（四）组卷人：王凤莲 李 景 组长签字: 主任签字:A66-year-old Dai once worked as a boat tracker along the Yangtze River. It was something that required brute strength, but not that alone, Dai said at his home in Xialong village, which sits at the entrance to Wuxia Gorge, one of the famous Three Gorges in Southwest China. You needed a lot of skills to do what we did. When outboard motors became available in the 1980s, boat trackers became
