Using (1) language to signal the speaker if you want to interrupt politely.
通用学术英语听说
章节列表
Unit 1 Preparing for Listening to a Lecture7Unit 2 Identifying Lecture Elements6Unit 3 Note-taking Skills for Academic Lectures11Unit 5 Identifying Language Features4Unit 6 Preparing for Academic Lectures7Unit 7 Developing Your Presentation7Unit 8 Participating Academic Discussions6Unit 9 Presentation Skills6Unit 10 Different Types of Presentations6Final Examination10