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1、中国名校英语四级密卷（1）北京大学外语学院 Part Reading Comprehension (35 minutes) Directions:There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresp
2、onding letter on the Answer Sheet with a single line through the center.Passage OneQuestions 21 to 25 are based on the following passage.Antarctica has actually become a kind of space stationa unique observation post for detecting important changes in the worlds environment.S1 Remote from major sour
3、ces 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 distante
4、arly 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
5、 the health of the West Antarctic Ice Sheeta 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 cov
6、ered 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 wo
7、uld 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 l
8、and, these valleys once held enormous glaciers that descend 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 win
9、ds that roar down from the polar plateau to the sea. Left bare are spectacular gorges, rippled fields of sand dunes, clusters of boulders(大圆石)sculptured into fantastic shapes by 100mileanhour winds, and an aura of extraterrestrial desolation.Despite the unearthly aspect of the dry valleys, some scie
10、ntists believe that they may carry a message of hope for the verdant(草木繁茂的)parts of the earth. Some scientists believe that in some cases the dry valleys may soak up pollutants faster than pollutants enter them.21.Antarctica is scientifically important in that _.A) it is a space stationB) it is an i
11、deal place for the investigation of glaciologyC) there is the mysterious dry valleyD) it can help people detect global environmental changes22.The reason for the disappearance of glaciers in the dry valley is _.A) that theyve desended to the Ross seaB) that theyve been blasted out by vicious windsC)
12、 the global warming trend ever since the ice ageD) that theyve been changed into gorges,sand dunes and boulders23.When the author calls Antarctica “distantearlywarning sensor”, he actually means that _.A) such equipment has been set up for scientific purposeB) the research groups there are like such
13、 kind of sensorsC) potential global changes can be seen on Antarctica firstD) Antarctica is remote from other parts of the earth24.Which of the following statements is true according to the article?A) There is a cluster of island west of the Transantartic Mountain.B) Scientific research on Antarctic
14、a only centers on the ice and snow there.C) Dry valleys may be a place to dispose of our pollutants.D) All the countries on earth should be concerned about the health of the West Antarctic Ice Sheet.25.The word “spotted”(2nd paragraph)can best be replaced by_.A) placedB) noticed C) fixedD) judgedPas
15、sage TwoQuestions 26 to 30 are based on the following passage.The Carnegie Foundation report says that many colleges have tried to be “all things to all people”. In doing so, they have increasingly catered to a narrowminded careerism while failing to cultivate a global vision among their students.Th
16、e current crisis, it contends, does not derive from a legitimate desire to put learning to productive ends. The problem is that in too many academic fields, the work has no context; skills, rather than being means, have become ends.Students are offered a variety of options and allowed to pick their way to a degree. In short, driven
