Task: Listen and retell. Remember the following speech by hierarchical chunks and set retrieval cues for these chunks while listening and retell it in source language. 03.课堂练习.seg 2.mp3 Tips: This segment is expository speech, so you need to attend to different aspects of demography. 作业提交 1) 复述的音频; 2) 结构图: 分层语块+线索关键词。