阅读理解A new study shows one of the largest glaciers(冰川) in Greenland is ,高中二年级,英语试题,健康环保类阅读考点,好技网

阅读理解
阅读理解
A new study shows one of the largest glaciers(冰川) in Greenland is becoming smaller and speeding to
the sea faster than scientists expected. If it continues, Greenland itself could become much smaller during
this century and global seas could rise as much as 3 feet.
The rates of change that we're noticing are much higher than expected. If these rates continue, it is not
likely that Greenland could shrink by several tens of percent this century. However, it's not known how
quickly this coastal response of the Greenland ice sheet melting will have an effect on the vast inland ice.
Greenland is the world's largest island, covering area more than three times the size of Texas. Some 81
percent of it is covered by ice, and there are many glaciers. Glaciers are like slow-moving rivers of ice.
Where a glacier meets the sea, its weight keeps it firmly resting on the bottom. A glacier's front is the point
where the water is deep enough that the glacier floats.
Since the 1970s, the front of Helheim stayed in the same place. Then it began melting rapidly, moving
back 4.5 miles from 2001 through this past summer. It has also grown thinner, from top to bottom, by
more than 130 feet since 2001. And over these past years, its trip to the sea has sped up from about 70
feet per day to nearly 110.
The melting is driven by a warmer climate. Temperatures in Greenland have risen more than five
degrees Fahrenheit(华氏温度) in the last ten years. Since most of Greenland's ice is on land, seas will rise
as the ice melts. If all Greenland's ice sheet melted, oceans would be 15-20 feet higher. Nobody expects
that to happen any time soon.
1. What can we know about the glaciers according to the passage?
A. Glaciers only lie in Greenland.
B. Water in glaciers is more than sea water.
C. Glaciers sometimes float on the water.
D. Glaciers can increase the water level of lakes.
2. According to the passage, we know that Greenland _____.
A. belongs to Canada
B. is the largest island in North America
C. is all covered with glaciers
D. is sinking under the sea level
3. Which of the following may be the result of the disappearing of Greenland glaciers?
A. The climate of the world will be warmer.
B. The glaciers in other areas will be bigger.
C. It will be easy for explorers to visit the island.
D. Some coastal cities may be under the sea.

本题信息：2010年陕西省期末题英语阅读理解难度较难来源:刘平（高中英语）
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