Introduction前言 Needs analysis需求分析 Learning journal学习日志 Unit 1 Focus on listening加强听力 Unit 2 Making calls拨打电话 Unit 3 Receiving calls接听电话 Unit 4 Receiving and leaving messages电话留言 Unit 5 Dealing with problems解决问题 Unit 6 Conference calls电话会议 Resources学习材料 Transcripts and answer keys录音文本及参考答案