[填空题]Only about two percent of Antarctica peeks through the thick sheets of ice that blanket the continent. In the winter, the lowest recorded temperatures (without wind chill) have reached -89℃ (-129°F). The continent averages 2.4 kilometers in height (1.5 miles) above sea level, making it 1.5 kilometers (almost a mile) higher than the global average land height! Each year the South Pole receives less than an inch of water...in the form of snow, of course! This amount of precipitation is similar to that of another desert, the Sahara! Katabatic winds, reaching 300 kilometers per hour (185 miles/hour), blow out of the continental interior and make the Antarctic coastal regions rather breezy.
Antarctica is an important part of Earth’s system. By acting as a global heat sink, it helps control our climate and weather. The stability of the Antarctic ice sheets is of concern to those living in low-lying areas; they contain enough water to raise global sea level almost 70 meters.
Ant

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[填空题]Psychologists have found that only about two percent of adults use their creativity, compared with ten percent of seven-year-old children. When five-year-olds were tested, the results soared to ninety percent! Curiosity and originality are daily occurrences for the small child, but somehow most of us lose the freedom and the flexibility of the child as we grow older. The need "to follow directions" and "do-it- right", plus the many societal constraints we put on ourselves, prevents us from using our creative potential.
It is never too late to develop our creative potential. Some of us, however, find it difficult to think in imaginative and flexible ways because of our set pattern of approaching problems. When we are inflexible in our approach to situations, we close our minds to creative possibilities.
Being creative doesn’t necessarily mean being a genius. It means looking at situations in a new way or putting something together in a new form that makes sense... Spontane

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[单项选择]Passage Two

In only two decades Asian Americans have become the fastestgrowing the U. S. minority. As their children began moving up through the nation’s schools, it became clear that a new class of academic achievers was emerging. Their achievements are reflected in the nation’s best universities, where mathematics, science and engineering departments have taken on a decidedly Asian character. This special liking for mathematics and science is partly explained by the fact’ that Asian-American students who began their educations abroad arrived in the U.S. with a solid grounding in mathematics but little or no knowledge of English. They are also influenced by the promise of a good job after college. Asians feel they will be judged more objectively. And the return on the investment in education is more immediate in something like engineering than
A. feel they are mistreated because of limited knowledge of English
B. are afraid that their academic successes bear a strong Asian character
C. still worry about unfair treatment in society
D. generally feel it a shame to have to depend on their parents

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[单项选择]Only two animals have entered the human household otherwise than as prisoners and become domesticated by other means than those of enforced servitude(束缚): the dog and the cat. Two things they have in common, namely, that both belong to the order of carnivores and both serve man in their capacity of hunters.
In all other characteristics, above all in the manner of their association with man, they are as different as the night from the day. There is no domestic animal which has so rapidly altered its whole way of living, indeed its whole sphere of interests, that has become domestic in so true a sense as a dog; and there is no animal that, in the course of its century-old association with man, has altered so little as the cat. There is some truth in the assertion that the cat, with the exception of a few luxury breeds, such as Angoras, Persians and Siamese, is no domestic animal but a completely wild being. Maintaining its full independence, it has taken up its abode in the house an
A. dogs are more domesticated than cats
B. dogs are more lovable than cats
C. though different, dogs and cats have their own charms
D. both dogs and cats can be kept as pets in one house

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