外研版（2019）选择性必修第一册 Unit 6 Nurturing nature The Sky Railway 课件（共27张）

(共27张PPT) Unit 6 Nurturing Nature The Sky Railway The Railway Sky Did you ever travel to Tibet Do you know how to get there Do you know the name of the first and the most important railway in Tibet Qinghai-Tibet railway 青藏铁路 Learning objectives After this class, students are expected to: 1.get th...