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 Part 2 – Chapter 2 – The Colorado River (p. 140)

 

READING
Read the text below and fill in the missing words.

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The Colorado River

The Colorado river (1) ………… in the Rocky Mountains and is vital to the life and economy of the Southwest. It is the only permanent river (2) ………… through the desert and one of the great river systems in the country.
The natural (3) ………… of the river flows from the Rocky Mountains in Colorado into the Gulf of California and (4) ………… the US states of Colorado, Utah, Arizona, Nevada, California. The river is 2,330 km long and contains alternating sections of (5) ………… and calm sections.
In its journey to the Gulf of California it encounters many (6) ………… and reservoirs that have been built along its course to (7) ………… water for agriculture and (8) ………… power for the fast growing cities of the South, such as Las Vegas (Nevada), Phoenix (Arizona) and Albuquerque (New Mexico).
One of the most famous is the Hoover Dam in Arizona which was completed in 1936 and at that time was the largest in the world. Its (9) ………… , Lake Mead, now a popular recreation site, covers 700 (10) ………… km. Another well known dam is the Glen Canyon dam in Utah which was (11) ………… in 1963 and created Lake Powell.
The Colorado River was (12) ………… named Rio Colorado or 'Red River' by the Spanish. The (13) ………… color that originally gave the river its name was given by the silt and (14)………… that are now trapped behind the dam in the (15) ………… of Lake Powell after completion of the Glen Canyon dam. At present the color of the river is (16) ………….
For millions of years the Colorado River has left its (17) ………… on the land. Since the river was formed, it has been hard at work cutting great (18) ………… including the Grand Canyon in the state of Arizona. It is largely (19) ………… within the Grand Canyon National Park, one of the first national parks in the United States, and is reputed one of the world (20) ………… wonders.

 

 
Questo file è un’estensione online del corso M. G. Dandini, NEW SURFING THE WORLD.
Copyright © 2010 Zanichelli Editore S.p.A., Bologna [1056]