下载地址：http://cai.yinruiwen.net/html_doc/45538.htm

课件名称：senior2unit9warmingup

适用年级：人教版 高二上册

作者：guofeng gfj613@163.com 作者单位：xiaongfeimiddleschool 简介：To enrich the students' knowledge about our enviornment.