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At some 2300 miles in length,the Mississippi is the longest river in the United States. At some 1000 miles,the Mackenzie is the longest river in Canada. But these waterways seem mute in comparison to the world‘s two longest rivers —— the Nile and the Amazon.
The Nile,which begins in central Africa and flows over 4100 miles north into the Mediterranean. Host to one of the world’s great ancient civilizations along its shores,Calm and peaceful for most of the year, the Nile used to flood annually. Their by creating,irrigating and caring new top soil to the nearby farmland on which ancient Egypt depended for a livelihood. As a means of transportation,the river carried various vessels up and down its length. (9)A jourA journey through the unconstructed part of this waterway today would pass by the splendid valley of the kings with tombs of many of these ancient monarchs,having stood for over 3000 years.
(10)Great civilizations and intensive settlements are hardly associated with the Amazon. (11)Yet this 4000 mile-long south American river carries about 20% of the world‘s fresh water,more than the Mississippi,Nile and the Mackenzie combined. Other statistics are equally astonishing. the Amazon is so wide at some points that from its center neither shore can be seen. Each second the Amazon pours some 55 million gallons of water into the Atlantic. There,at it’s mouth stands one island larger than Switzland. Most important of all,the Amazon irrigates the largest tropical rainforest on earth.
未听先知
预览三道题各选项,由选项中的 floods, water、 fresh water和 banks等词可以初步推测,短文与河 流有关;再结合 Egyptian、 Tombs of ancient rulers、 tribes、 civilizations、 the Mississippi River、 the Nile和the Yangize等词可以进一步推测,短文涉及世界几大长河,重点讲述埃及的尼罗河及沿岸文明等方面的内容。
详解详析
9. What can be found in the valley of the kings？
C)。
短文中提到，沿着如今畅通无阻的水路前行会经过辉煌的帝王谷（Valley of the Kings），这里有许多3,000多年前的古代帝王的陵墓。因此答案为C)。
10. In what way is the Amazon different from other big rivers？
B)。
短文中明确提到，亚马逊河几乎从未与伟大的文明和密集聚居地这样的字眼关联在一起。因此答案为B)。
11. What does the speaker say about the Amazon？
A)。
短文中提到，亚马逊河拥有地球上20%左右的淡水。因此答案为A)。