大众英语品级测验一级备考摹拟操练题

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大众英语品级测验一级备考摹拟操练题

　　咱们必然要给本身提出如许的使命：第一，进修，第二是进修，第三仍是进修。以下是小编为大师搜刮清算的大众英语品级测验一级备考摹拟操练题，但愿对正在存眷的您有所赞助!更多出色内容请实时存眷咱们应届毕业生测验网!

大众英语品级测验一级备考摹拟操练题

　　Antarctica and Environment

　　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.

　　Vocabulary

　　1. distant-early-warning sensor 　远间隔初期报警传感器

　　2. plateau　高原，洼地

　　3. slash 　挥砍

　　4. blast 　一阵疾风/暴风

　　5. vicious 　险恶的，凶魔般的'

　　6. gorge 　峡谷

　　7. ripple 　升沉，使起微波

　　8. sand dune 　沙丘

　　9. verdant 　绿色

　　10. extraterrestrial 　地球以外的

　　11. aura 　氛围

　　难句译注

　　1. Growing numbers of scientists therefore see Antarctica as a distant-early waning sensor， where potentially dangerous global trends may be spotted before they show up to the north.

　　「布局简析」see … as 把……看做。Where定从润色Antarctic

　　谜底详解

　　1. A 　南极洲和环境题目。

　　B. 南极洲：地球最早的报警战。

　　C.南极洲：唯一无二的察看哨。

　　D. 南极洲：奥秘的处所。三项都是总内容众的构成局部。

　　2. D 　大陆西部成为一群岛屿。第三段“横断南极的山脉，有的高达一万四千多英尺，把这大陆分红环境各别的两个地域。山脉以东的大陆局部是由差未几两英里厚的冰层笼盖的高原;山脉以西，即美洲以南的半个大陆也为冰层所笼盖。但是，这里冰层笼盖在大大低于海立体的岩石。若是东北极洲冰层消逝，那这大陆西部将成为稀少的岛群。”

　　A. 大陆西部将小时。

　　B. 大陆西部减少。

　　D. 大陆西部将成为分离的岛屿。

　　3. C 　由于地球变暖和暴风劲吹。在第四段：“……这些干谷乃至在隆冬季候也很少有冰雪。它们插在南维多利亚海洋的山脉中，一度曾有从极地高原到罗斯海的深度为9000英尺的冰河。此刻冰河已不存在，很能够是冰期以后一万年间地球变暖的成果。即便落入干谷的雪也被从极地高原吼怒入海的险恶暴风吹散了。留上去的是袒露的壮观的峡谷，沙丘升沉的田野，被时速一百英里的.微风雕镂成奇形怪状的大砾石，构成与世隔断的冷落气象。”

　　A. 险恶的暴风吹走了雪。

　　B. 它很少下雪。

　　D. 沙丘。这三项只是干谷景象的一局部。

　　4. C 他们能够为地球上绿色地域带来了但愿的信息。谜底是第五段第一句“虽然干谷具备奥秘的一面迷信家却信任他们能够为地球上翠绿的处所带来了但愿的信息。”

　　A.干谷内甚么都不留下。

　　B. 干谷内从不冰河。

　　D. 根据迷信家的观点，干谷毫无用途。

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