Giúp mình với
The United States is presently facing water problems. Rain and snow do not fall evenly across the country. The Northwest receives and abundance of rain, more than 80 inches each year in some areas. In contrast, parts of the West and Southwest receive less than ten inches per year. The Northeast and Midwest traditionally have had sufficient supplies of water, but recently both regions have begun to experience water shortages.
The Southwest receives its water from primarily two sources: large, underground reserves of water, called aquifers, and the 1,400-mile-long Colorado River. The aquifers, which were formed over thousands of years ago, are being consumed slowly but surely. More water is taken out than nature can replace.
The beautiful Colorado River has caused nearly as many fights in the West and Southwest as gold or whiskey ever did. This precious source of water flows through Wyoming, Utah, Nevada, California, and Mexico. Each of the seven states as well as Mexico has a legal right to a portion of its water; however, for years, California has been using not only its share of water but also a part of Arizona’s to supply water for Los Angeles and the surrounding area. People from Arizona and the mountain states resent this and feel their water is being stolen. By the time the river actually reaches its goal, the Gulf of California, there is no longer much water left to fight over. After Mexico claims its 10 percent share for irrigation, the once mighty Colorado becomes a trickle and gradually disappears into the sand.
46. Which of the following statements about the Colorado River is false?
a. It flows through two countries
b. It has been the cause of many fights in the Southwest
c. Its water is divided equally among seven states
d. The mouth of the river is on the Gulf of California
47. What does the word “evenly” in the first paragraph mean?
a. exactly b. horizontally c. equally d. vertically
48. The word “its” in the last paragraph refers to ___ .
a. Colorado River c. each of the seven states as well as Mexico
b. America d. Mexico
49. To say that “the Colorado River has caused nearly as many fights as gold or whiskey
ever did” implies that ___ .
a. the water of the Colorado is extremely valuable
b. it costs a lot to get a drink of water on the Colorado River
c. historically, there have been many fights near the river
d. people have fought for gold, whiskey, and the water of the Colorado
50. In paragraph 5, the passage states that the Colorado River has become a trickle. In this context, the word “trickle” means ____ .
a. to flow slowly b. a thin stream c. a drop of water d. an illusion
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Sinh Học lớp 12
