视频地址：https://video.cache.bdschool.cn/vd/c06f0903ca4382957702502b3661dafd.mp4
附件： 1211初三【英语(人教版)】Unit 13 We’re trying to save the earth.Period 4 教学设计.docx
附件： 1211初三【英语(人教版)】Unit 13 We’re trying to save the earth.Period 4 练习题.docx
附件： 1211初三【英语(人教版)】Unit 13 We’re trying to save the earth.Period 4 任务单.docx
附件： 1211初三【英语(人教版)】Unit 13 We’re trying to save the earth.Period 4.pptx