Unit 1 A Trip to the Silk Road,Lesson 1 A Trip to China,Lead in,What do you know about the Silk Road? Do you want to take a trip to the Silk Road,The Silk Road,The Silk Road is a historical network of interlinking trade routes across the Afro-Eurasian landmass (大陆) that connected East, South, and Western Asia with the Mediterranean and European world, as well as parts of North and East Africa. Extending 4,000 miles (6,500km), the Silk Road gets its name from the lucrative (赚钱的) Chinese silk trad
