【解析】
1. 根据短文第一段第一句“The Library Cave (藏经洞) of the Mogao Caves in Dunhuang has more than 50,000 items of literature (文献).”可直接找到答案。
2. 由第二段第一句“She explained the value of the literature during the launch (发布) of the Digital Library Cave, which is a game - like programme.”可知答案。
3. 从第三段第一句“The digitalization process of the Dunhuang frescoes (湿壁画) started in the late 1980s.”提取答案。
4. 结合第四段“Therefore, it is very important to popularize the history and value of Dunhuang in an interesting way. And virtual - world projects like the Digital Library Cave are just perfect for this purpose.”可知，“this purpose”指代前文的“to popularize the history and value of Dunhuang in an interesting way”。
5. 这是开放性问题，结合文章中数字化项目对敦煌文化传播的作用，给出合理表述即可，参考答案表述符合要求。
【答案】
1. More than 50,000.
2. A game-like programme.
3. In the late 1980s.
4. To popularize the history and value of Dunhuang in an interesting way.
5. They are helpful for people to learn about Dunhuang's history and culture.
【知识点】
细节信息查找、指代内容猜测、开放性表达
【点评】
本文围绕敦煌藏经洞的数字化项目展开，介绍了敦煌文献的价值及敦煌数字化进程。题目考查学生提取细节信息、猜测指代内容和发表个人观点的能力，同时能帮助学生了解敦煌文化的传播方式。
【难度系数】
0.7
