人教初中九年级英语全册-Unit 13 We're trying to save the earth! 导学案.docx

Unit 13 We're trying to save the earth!第一课时 Section A(1a－2d)Target Navigation 【目标导航】Key words and phrases：litter，bottom，fisherman，coal，ugly，advantage，cost，wooden，plastic，make a differenceKey sentences：(1)The river was dirty.Even the bottom of the river was full of rubbish.(2)It...