【正文】
the students will be able to 1. discuss which of the viewpoints from experts they agree with and which viewpoint their group will focus on. 2. know how to design a poster. 3. design a poster in group by themselves. Teaching procedures: Step 1 revision Ask the students to review information about desertification. [Explanation] 回顧上一課時通過聽、讀、說所獲關于沙漠化的信息,促使學生更加熟悉相關內(nèi)容。