Unit 1 A Trip to the Silk Road,Lesson 4 A Visit to Lanzhou,Lead in,What do you know about Lanzhou? Do you want to take a trip to Lanzhou,Xianthe Walled City,Xianthe Walled City,Xianthe Walled City,Xianthe Walled City,group bridge cross wide cheese,n. 群，组；团体 n. 桥梁 v. 横跨，横穿 adj.宽的，广泛的 n. 干酪，奶酪,Phrases: 1.散步 go for a walk =go out for a walk = take a walk,Language points,2.黄河 the Yellow River,My neighbors love to go for a walk. 我的邻居喜欢散步。 Why dont you go for a walk? 你怎么不出去散散步？ Id like to go for a wal
