Unit4 Public transport Task2教学设计
单 元：Unit 4 Public transport
板 块：Task 2
Thoughts on the design:
本节课是以说、写技能为主的语言输出课。前者旨在帮助和指导学生在设定的语境中，如何比较不同信息，做出最合理的解决方案；后者为整个Task的最终目标：写一篇电子邮件，说明旅游计划的安排。
Teaching aims:
After this period of learning, students will be able to:
1. make a decision to buy the suitable train tickets through a role play activity;
2. write an e-mail.
Teaching procedures:
Step 1: role play: finding out information
