Unit 4 Protecting our heritage sites Extended reading 课件-2021-2022学年高中英语牛津译林版（2020）选择性必修第三册

Lead in What is this picture about? Lead in What do you know about the ancient Silk Road? the pioneer the main means of transport function The starting and ending point Following the Silk Road Para. 1: The overall introduction Para. 2: The geography Para. 3: The history Paras. 4–5: The trade and cultural exchange Para. 6: The significance Reading for structure Para.1 Overall introduction What do these figures stand for? 5000 8700 33 3 1 The Silk Road Para.2 Geography Covering vast distance and an astonishing variety of landscapes, the Silk Road was a network of ancient routes. Where’s the starting point and destination of the Silk Road? What astonishing landscapes can be admired along the Silk Road? Chang'an → the Mediterranean wild deserts snow-capped mountains vast grasslands rolling valleys Para.3 History Draw a timeline to show the development of the Silk Road. Reasons for its rise: Reasons for its decline: To build bridges between the Han Dynasty and the Western Regions.