题目内容：

根据短文内容和所给中文提示，在空白处写出单词的正确形式。每空限填一词。

Probably you have seen photos of the Grand Canyon. But you must go there yourself to feel its size and beauty. The Grand Canyon is one of the greatest 1.(大自然的) 2. (奇迹，奇观) of the world.

The Colorado River made the Grand Canyon over 3. (百万) of years. Slowly, the river cut down 4.(穿过)hard rocks. At the same time, the land was 5.(上升). Today the canyon is very 6.(深的). It's also very 7.(宽的), about 20 kilometres. And because of its height, there are different kinds of plants and animals on both 8.(边，面) of the canyon.

The canyon looks different at different times of the day, and in different seasons and weather. At sunrise, the red, gold, brown and orange colours of the 9.(岩石) are especially clear and bright. Whether you see the Grand Canyon from the10.(顶部) or the bottom, it will be an experience that you will never forget.