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1、2023年9月公共英语一级精准模拟题及答案2023年9月公共英语一级精准模拟题及答案Dont try so hard, the best things come when you least expect them to.以下是我为大家搜寻整理的2023年9月公共英语一 级精准模拟题及答案，期望能给大家带来帮忙!更多精彩内容请准时 关注我们应届毕业生考试网！Antarctica and EnvironmentAntarctica has actually become a kind of space station - a unique observation post for detecti
2、ng important changes in the world 6s 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 wo
3、rld.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 pu
4、rsuing 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. Th
5、e 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
6、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 i
7、n 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 i
8、ce 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 extra
9、terrestrial 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
10、title for this passage?AAntarctica and environmental Problems.BAntarctica： Earth s Early-Warning station.CAntarctica： a Unique Observation Post.DAntarctica： a Mysterious Place.2. What would the result be if the West Antarctic Ice Sheet disappeared?AThe western part of the continent would be disappea
11、red.BThe western part of the continent would be reduced.CThe western part of the continent would become scattered Islands.DThe western part of the continent would be reduced to a cluster of Islands.3. Why are the Dry Valleys left bare?AVicious wind blasts the snow away.BIt rarely snows.CBecause of t
12、he global warming trend and fierce wind.DSand dunes.4. Which of the following is true?AThe“Dry Valleys”have nothing left inside.BThe“Dry Valleys”never held glaciers.CThe verdant.“Dry Valleys”may carry a message of hope for theDThe“Dry Valleys”are useless to scientists.Vocabulary1. distant-early-warn
13、ing sensor远距离早期报警传感器2. plateau高原，高地3. slash挥砍4. blast一阵疾风/狂风5. vicious邪恶的，凶魔般的6. gorge峡谷7. ripple起伏，使起微波8. sand dune 沙丘9. verdant 绿色10. extraterrestrial地球之外的11. aura 气氛难句译注1. Growing numbers of scientists therefore see Antarctica as a distant-early waning sensor, where potentially dangerous global t
14、rends may be spotted before they show up to the north.结构简析seeas把看作。Where定从修饰Antarctic答案详解2. A南极洲和环境问题。B.南极洲：地球最早的报警战。C.南极洲：独一无二的观看哨。D,南极洲|：神奇的地方。三项都是总内容众的组成部分。3. 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，把这大陆分成状况各异的两个地区。山脉以 东的大陆部分是由差不多两英里厚的冰层掩盖的高原；山脉以西，即 美洲以南的半个大陆也为冰层所掩盖。可是，这里冰层掩盖在大大 低于海平面的岩石。假如西南极洲冰层消逝
15、，那这大陆西部将成为稀 疏的岛群。”A.大陆西部将小时。B.大陆西部缩小。D.大陆西部将成为分散的岛屿。4. C 由于地球变温和狂风劲吹。在第四段：”这些干谷 甚至在寒冬季节也很少有冰雪。它们插在南维多利亚陆地的山脉中, 一度曾有从极地高原到罗斯海的深度为9000英尺的冰河。现在冰河 已不存在，很可能是冰期之后一万年间地球变暖的结果。即使落入干 谷的雪也被从极地高原咆哮入海的邪恶狂风吹散了。留下来的是暴露 的壮丽的峡谷，沙丘起伏的原野，被时速一百英里的大风雕刻成奇形 怪状的大砾石，形成与世隔绝的荒芜景象。”A.邪恶的狂风吹走了雪。B.它很少下雪。D.沙丘。这三项只是干谷现象的一部分。5. C他们可能为地球上绿色地区带来了期望的信息。答案是第 五段第一句“尽管干谷具有神奇的一面科学家却信任他们可能为地 球上葱绿的地方带来了期望的信息。”A.干谷内什么都没有留下。8. 干谷内从没有冰河。D.根据科学家的看法，干谷毫无用处。文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有 需要的人。