教材分析这篇讲读课文记叙了游双龙洞的全过程,重点介绍了双龙洞的特点,使人读了有一种身临其境的感觉。课文与本单元重点训练项目——“理清文章的条理”有机配合,以游览观赏双龙洞的景致为线索,形成了条理非常清楚的写作思路。从整体上看,作者先交待了游览的时间和地点;接着写游洞途中的景色;然后描写游双龙洞;最后写出洞,直至游览完毕。其中,“游双龙洞”是文章的重点部分,其层次和条理也都很清楚。作者按“洞口→外洞→内洞→出洞”这一游览顺序,抓住特点,着力于外洞,孔隙,内洞的描写,突出了文章的重点。教学时,重点应放在引导学生理清文章的条理,了 Textbook analysis This lesson text tells the whole story of Tour Ssangyong Cave, focusing on the characteristics of Ssangyong Cave, people read there is a feeling of immersive. The text and the unit key training project - “clears up the article article” organically, with sightseeing Shuanglongdong view as a clue, formed a very clear idea of ​​writing. On the whole, the author first accounts for the time and place of the visit; then he writes about the scenery on the way to the tourist attraction; then he describes the Ssangyong Cave; and finally writes out the cave until the tour is completed. Among them, “Travel Shuanglongdong” is the key part of the article, its level and the rules are also very clear. According to the order of “hole → hole → hole → hole”, the author grasps the characteristics and focuses on the description of outer holes, pores and inner holes, highlighting the focus of the article. Teaching, the emphasis should be placed on guiding students to sort out the article, the