2016年12月的英语四六级考试已经进入了报名收尾阶段，不知道各位考生是不是已经完成报名了呢？就文都四六级小编得知，英语四级考试中四级阅读所占比重为百分之三十五，英语四级阅读训练的重要性不言而喻，然而四级阅读技巧也是一门学问呢。想要更早的为12月的四六级考试做准备，那就来看看四六级考试网小编为各位整理的英语四级阅读训练题~
【小编说】现在距离四六级考试还有大概两个月的时间，这两个月的时间已经足够让同学们来备战冲刺12月份的四六级考试。为了提升大家的阅读的能力，大家可以选择在四六级复习前期，选择一些外文原著来阅读，如果担心看原文的有些吃力的话，同学们可以选择配合一本中文的一起看，或者随手拿一本字典，边看边查，这样对四级阅读能力会有很大程度上的！》》》轻点查阅，推荐书籍》》》
Antarctica has actually become a kind of space station a unique observation post for detecting important changes in the world's environment. Remote from major sources of pollution and the complex geological and ecological systems that prevail elsewhere, Antarctica makes possible scientific measurements that are often sharper and easier to interpret than those made in other parts of the world.
Growing numbers of scientists therefore see Antarctica as a distant-early-warning sensor, where potentially dangerous global trends may be spotted before they show up to the north. One promising field of investigation is glaciology. Scholars from the United States, Switzerland, and France are pursuing seven separate but related projects that reflect their concern for the health of the West Antarctic Ice Sheet a concern they believe the world at large should share.
The Transantarctic Mountain, some of them more than 14,000 feet high, divide the continent into two very different regions. The part of the continent to the "east" of the mountains is a high plateau covered by an ice sheet nearly two miles thick. "West" of the mountain, the half of the continent south of the Americas is also covered by an ice sheet, but there the ice rests on rock that is mostly well below sea level. If the West Antarctic Ice Sheet disappeared, the western part of the continent would be reduced to a sparse cluster of island.
While ice and snow are obviously central to many environmental experiments, others focus on the mysterious "dry valley"of Antarctica, valleys that contain little ice or snow even in the depths of winter. Slashed through the mountains of southern Victoria Land, these valleys once held enormous glaciers that descended 9,000 feet from the polar plateau to the Ross Sea. Now the glaciers are gone, perhaps a casualty of the global warming trend during the 10,000 years since the ice age. Even the snow that falls in the dry valleys is blasted out by vicious winds that roars down from the polar plateau to the sea. Left bare are spectacular gorges, rippled fields of sand dunes, clusters of boulders sculptured into fantastic shapes by 100-mile-an-hour winds, and an aura of extraterrestrial desolation.
Despite the unearthly aspect of the dry valleys, some scientists believe they may carry a message of hope of the verdant parts of the earth. Some scientists believe that in some cases the dry valleys may soak up pollutants faster than pollutants enter them.
1. What is the best title for this passage?
[A] Antarctica and environmental Problems.
[B] Antarctica: Earth's Early-Warning station.
[C] Antarctica: a Unique Observation Post.
[D] Antarctica: a Mysterious Place.
2. What would the result be if the West Antarctic Ice Sheet disappeared?
[A] The western part of the continent would be disappeared.
[B] The western part of the continent would be reduced.
[C] The western part of the continent would become scattered Islands.
[D] The western part of the continent would be reduced to a cluster of Islands.
3. Why are the Dry Valleys left bare?
[A] Vicious wind blasts the snow away.
[B] It rarely snows.
[C] Because of the global warming trend and fierce wind.
[D] Sand dunes.
4. Which of the following is true?
[A] The "Dry Valleys" have nothing left inside.
[B] The "Dry Valleys" never held glaciers.
[C] The "Dry Valleys" may carry a message of hope for the verdant.
[D] The "Dry Valleys" are useless to scientists.
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