文章大意：本文是一篇说明文。本文主要说明了西藏羚羊的生活环境、美丽以及受到的猎杀威胁。同时，文章提到了经济发展对于社会的重要性，以及在进步和保护文化遗址之间寻找平衡的挑战。最后，文章介绍了一个通过分享数字照片来推广中国古代历史、文化和传统的项目，并强调了珍惜文化遗产的重要性。
4 . 课文填空
Tibetan antelopes live on the plains of Tibet, Xinjiang and Qinghai. Watching them move slowly 1 the green grass, I’m 2 (strike) by their beauty and also reminded of the danger they were in. They were hunted 3 (legal) for their 4 (value) fur.
Economic development is necessary if we want to improve society. There comes 5 time when the old must give way 6 the new and it is not possible 7 (preserve) everything from our past as we move towards the future. Finding and 8 (keep) the right balance between progress and the protection of cultural sites can be a big challenge. Big challenges, however, can sometimes lead to great 9 (solve).
By 10 (share) so many digital photos over the Internet, the group hopes to promote even 11 (wide) interest around the world in China’s ancient history, culture and traditions. They also hope to 12 (far) educate people about the importance of safeguarding historic and cultural relics for future generations to understand and appreciate. 13 one researcher who is working on the project explains, “Appreciating one’s own cultural heritage is very important for understanding 14 (one). Appreciating the cultural heritage of other countries is very important for international 15 (communicate) and understanding.”
