题目内容：

根据短文内容和所给汉语提示，在空白处写出单词的正确形式，每空一词。

Qomolangma is the highest mountain in the world. It lies in the 1.(西南方的) part of China. It is 8，844.43 meters high, so it is very 2.(危险的) to climb. 3.(厚的) clouds cover the top and snow can fall very hard. It is also very hard to take in 4.(空气) as you get near the top. But why do many 5.(攀登者) risk their lives to reach its top？One of the main 6.(原因) is that people want to 7.(挑战) themselves in the face of difficulties. The 8.(精神) of these climbers shows us that we should never give up trying to 9.(实现) our dreams. It also shows that humans can sometimes be stronger than the 10.(力量) of nature.