How was the Grand Canyon formed The truth is that no one knows for sure though there are some pretty good guesses, and it is usually thought that a number of processes combined to create the views that you see in today’s Grand Canyon. The most powerful force to have an impact on the...
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How was the Grand Canyon formed The truth is that no one knows for sure though there are some pretty good guesses, and it is usually thought that a number of processes combined to create the views that you see in today’s Grand Canyon. The most powerful force to have an impact on the...
How the Grand Canyon (大峡谷) was created remains one of the geology’s greatest mysteries. Some evidence suggests that the process was a gradual one in which the Colorado River (which runs through the canyon) slowly cut deeper and deeper into the ground over millions of years. But volcanic...
How Was the Grand Canyon Formed?
Explore the Grand Canyon, one of the largest and most famous canyons in the world. Learn how water formed the Grand Canyon, how long it took for form, and why the sides of the canyons are made of striped layers of rock. Welcome to the Grand Canyon! A canyon is basically a gigantic...
How the Grand Canyon was created remains one of the geology’s greatest mysteries. Some geologists believed that the process was a gradual one: the Colorado River which goes through the canyon slowly cut deeper and deeper into the ground over millions of years. But some rocks of the volcanoes...
从文章第一段的句子“Someevidence suggests thatthe process was a gradual one in which theColorado River( which runs through the canyon ) slowly cutdeeper and deeper into the ground over millions of years "可知,有些证据表明过去深深的峡谷是由于多年的河流的流动造成的,选B。②B【解析】细节理解题...
. The canyon was formed 37 000 years ago. . Colorado River was once more than 140 feet higher than its water level today. . Animals could make fire from wood thousands of years ago. 相关知识点: 试题来源: 解析 1A2A3A4C 1[听力原文]What are the two speakers mainly talking about?本...
—How soon will I get to the Grand Canyon? — A.5 minutes ago.B.For 5 minutes.C.5 minutes.D.In 5 minutes. 答案 D考查特殊疑问句回答。句意: —我还要多久能到大峡谷? —5分钟。问句中How soon意为 "还要多久" ,其答语通常是 "in + 一段时间"表示将来多久之后发生。故选D。 结果二 题...