训练目标:分析段落作用,理清说明顺序,分析说明方法,理解语言特点。草原上的“流浪汉”詹院生(1)在美国西部片中,常常能看到这样的画面:一坨坨枯黄的草球在呼啸的狂风中翻腾着、跳跃着,穿越田野、横跨道路,向着远方滚去。那意象既悲壮又励志,甚至还有点萌。(2)这种草叫风滚草,最大的特点是随风滚动,四海为家,因而被称作草原上的“流浪汉”。或是为了沿途撒播后代,或是为了寻找新的乐土,总之,到了该走的 Training Objectives: Analysis of the role of paragraphs, clarify the order of explanation, analysis methods to understand the language characteristics. On the prairie “tramp ” Zhan Yusheng (1) In the United States in the West, you can often see such a picture: a lump of yellow grass balls in the whistling winds churn, jumping, across the field, horizontal Cross the road, toward the distance to go. That image is both tragic and inspirational, even adorable. (2) This grass called tumbleweed, the biggest characteristic is the wind rolling, all over the world, which is called prairie “wanderer.” Or to sow descendants along the way, or to find new paradise, in short, to go