The Grand Canyon

The Grand Canyon Written by Mike Stark Focus Question What is the Grand Canyon, and why is it special?

大峡谷 作者：迈克·斯塔克 思考问题 大峡谷是什么？它为什么这么特别？

A Canyon So Grand The Grand Canyon is so big that we can see it from space. It became a national park in 1919.

如此雄伟的峡谷 大峡谷非常大，我们在太空中都能看到它。 它在1919年成为了国家公园。

A national park is an area of protected land.

国家公园是受到保护的陆地区域。

Formation. The Colorado River made the Grand Canyon through erosion. Erosion happens when bits of the ground are worn away. The river ran over the earth and after many years a canyon was made.

形成过程 科罗拉多河通过侵蚀作用塑造了大峡谷。 地表的碎屑被逐渐磨损时就会发生侵蚀。 河水常年冲刷地表，经过很多年就形成了峡谷。

The Grand Canyon is striped with colors. The stripes are layers of sediment that built up on top of each other. They show how Earth has changed over time.

大峡谷布满了彩色的条纹。 这些条纹是一层层堆叠起来的沉积物。 它们展现了地球随时间推移的变化过程。

Exploration. Native Americans went to the Grand Canyon first. People can still see some of their homes there.

探索历史 美洲原住民是最早来到大峡谷的人。 现在人们还能在那里看到他们留下的部分居所。