题目内容：

阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

The Great Wall of China 1. (list) in the World Cultural Heritage by UNESCO in 1987. Just 2. a huge dragon, it winds up and down across deserts, grasslands and mountains, 3. (cover) thousands of kilometers from the east to the west of China.

In ancient China, many people built walls around their states to protect their land. It was Emperor Qin Shihuang who had the walls 4. (join) up. The project cost much money and hundreds of thousands of people worked on 5. wall. On top of it, it is wide enough for four horses or ten men 6. (walk) side by side. Along the wall are watchtowers, in 7. soldiers used to keep watch. With a history of more than 2,000 years, some of the sections of the Great Wall are now in ruins or even disappeared. However, it is still one of the most 8. (attract) spots around the world because of its wonderful buildings and historical 9. (important). Many of the tourists have come to know the famous Chinese saying --- “He who does not reach the Great Wall 10. (be) not a true man.”