多媒体计算机辅助教学手段的应用，已成为课堂教学改革的必然趋势。地理ＣＡＩ课件进入课堂已经比较普遍，目前市面上虽有不少现成的教学软件出售，但它常常与中学课堂教学脱节，教学第一线的教师在上课时使用起来总是不尽如人意。为了提高课堂教学效率，提高地理教学质量... The application of multimedia computer aided teaching has become an inevitable trend in classroom teaching reform. The entry of geography CAI courseware into the classroom has become more common. Although there are many ready-made teaching softwares on sale in the market, it is often out of touch with middle school classroom teaching. The teachers in the front line of teaching are always unsatisfactory in class. In order to improve classroom teaching efficiency and improve the quality of geography teaching...