精选优质文档-倾情为你奉上Unit 6 单词详解1. once upon a time 从前专心-专注-专业eg.Once upon a time, the centepede and cock are good friends. 从前，蜈蚣和公鸡是好朋友。 Once upon a time, there was a king.从前，有一个国王。 2. shoot v.(shot)射击；发射eg.He shot the bird with gun.他用枪打鸟。Shoot at .向.射击，（仅表示对准目标射击，是否命中或有否打死，不得而知） He shot at a bird,but missed it.他向一只鸟开枪，但是没打中。3. begin v.开始 现在分词：beginning 过去式：began eg.When did you begin learning English? 你何时开始学英语的? The party will begin at 8 p.
