Hengshan immigrants purchase houses

(1) The relative height between Zhurongfeng of Hengshan Mountain and Shao Feng is1290-515 = 775m.

(2) Reading pictures shows that ① is Changsha, ② is Xiangjiang;

(3) (3) Dongting Lake, the second largest freshwater lake in China, has greatly weakened its regulation function on the Yangtze River due to its shrinking area. Since 1998, the lake area has taken a series of comprehensive improvement measures, such as "returning farmland to the lake and building towns by immigrants", which greatly improved the flood control capacity of the lake area;

(4) Wulingyuan Scenic Area in Zhangjiajie City is listed in the World Natural Heritage List because of its rare seasonal sandstone peak forest and well-preserved original ecological environment;

(5) From Zhangjiajie to Beijing to watch the Olympic Games by train, you can go from Liujiao Line to Huaihua, then from Xiang Qian Line to Changsha and finally from Beijing-Guangzhou Line to Beijing;

(6) Hunan is known as the antimony capital of the world, the museum of nonferrous metals and the hometown of fireworks in China.

So the answer is:

( 1)775;

(2) Changsha; Xiangjiang river;

(3) Dongting Lake; Immigrants returned to the lake to build towns;

(4) Wulingyuan;

(5) Liujiao Line-Xianggui Line-Jingguang Line;

(6)D。