阅读理解。 Huaihua City is in the west of Hunan. It was built in the 1970s along with the construction (建设) of the Xiang-Qian and the Zhi-Liu railways. Another Yu-Huai Railway has been used this year. Huaihua is the main transport (运输) center in western Hunan because three railways run through the city area. Huaihua is in a mountainous area of Hunan and has a good ecological environment (生态环境) and many historical relics (遗迹). Ancient trading town () at Hongjiang is well preserved . It is very useful for the study of the history of economic (经济 的) and social development in western Hunan. Furong Lou in Qiancheng is more than 40 km away from Huaihua. It was built in memory of Wang Changling, a famous poet (诗人) in Chinese history. It is an important cultural relics in Hunan. Another historical place is the Zhijiang Memorial Site (受降坊). It is 3.5 km east of Zhijiang and it is also the home of the Kuomintang air force. You can see many important pictures and materials in the exhibition hall. They tell us the history of the anti-Japanese War. Many famous people, such as Su Yu, Teng Daiyuan and Xiang Jinyu were born in the city area. They were active in Chinese revolution in their early days and their former residences (故居) become important places to have education on revolutionary tradition. 1. Huaihua City was built more than 30 years ago because of _____. A. the building of the two railways B. its good ecological environment C. its history and culture 2. The underlined word 'preserved' can be replaced (替换) by _____. A. built B. chosen C. kept 3. The Zhijiang Memorial Site was built in order to _____. A. attract (吸引) visitors to Zhijiang B. offer people a place to relax themselves in C. celebrate the victory of the anti-Japanese War 4. How many famous people are mentioned in the text? A. Three. B. Four. C. Five. 5. The aim of writing the text is to _____. A. describe the beautiful future of Huaihua B. make people know more about Huaihua C. make a plan for the construction of Huaihua