话题复习话题复习Writing-What Can We Do for the Environment?n八年级下册：八年级下册：Unit 7 Whats the highest mountain in the world?n九年级：九年级：Unit 13 Were trying to save the earth!She is Li Bingbing.Whos she?Whats she talking about?Climate/Environmental problem.white pollution 白色污染白色污染What Can We Do for the Environment？water pollution 水污染水污染air pollution 空气污染空气污染 Although the world develops much faster and better,the resources（资资源源）the earth gets fewer and fewer.People may think that big things must be done to save t
