[单项选择]Passage 1 Long ago, the. Earth was covered in darkness. None of the creatures living there knew what daylight looked like. One day, all of the animals of the forest gathered together in a cleating (林中空地). They wondered if it would be better to remain in darkness, or if it would be better to also have light. Deer, Chipmunk (花松鼠), Raccoon (浣熊), Wolf, Bear,and many other creatures climbed to the top of the highest mountain. There were no trees on its top, and it was covered only with rocks. Millions of stars shone in the dark sky overhead. The biggest and most powerful animal in the forest was Bear, and he was the first to reach the mountaintop. Bear stood on the highest peak, looked out over the forest below, and argued for remaining in darkness. He said that the creatures of the forest would be able to sleep better in darkness because there would be no light to keep them awake. Most of the other animals were afraid, and they agreed with Bear. Raccoon said that he did not m
A. a good listener
B. used to having his own way
C. unsure about what he wants
D. well liked by the other animals

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[单项选择]Passage 1 Long ago, the. Earth was covered in darkness. None of the creatures living there knew what daylight looked like. One day, all of the animals of the forest gathered together in a cleating (林中空地). They wondered if it would be better to remain in darkness, or if it would be better to also have light. Deer, Chipmunk (花松鼠), Raccoon (浣熊), Wolf, Bear,and many other creatures climbed to the top of the highest mountain. There were no trees on its top, and it was covered only with rocks. Millions of stars shone in the dark sky overhead. The biggest and most powerful animal in the forest was Bear, and he was the first to reach the mountaintop. Bear stood on the highest peak, looked out over the forest below, and argued for remaining in darkness. He said that the creatures of the forest would be able to sleep better in darkness because there would be no light to keep them awake. Most of the other animals were afraid, and they agreed with Bear. Raccoon said that he did not m
A. making decisions is difficult
B. there is only one right way to do things
C. one should hold out for what he believes
D. it is always better to go along with the crowd

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[单项选择]Passage Three

Three years ago, researchers announced the discovery of human genes that were capable of turning ordinary cells into malignant ones. The news met with some skepticism. Experts asked how a single gene could cause such a dramatic change. Why does cancer take years or even decades to develop if it is caused by such a simple and direct process In last week’s issue of the, three research teams answered those questions by setting forth a new model for understanding the role of oncogenes in cancer.
Each group found that it does in fact take more than a single gene to produce cancer in normal cells. Teams at M. I. T and Cold Spring Harbor Laboratory on Long Island, N. Y. , reported that they could induce cancer in normal rat cells only by inserting at least two types of oncogene into the cells. "A single oncogene produced some changes,
A. was caused by normal cells
B. sometimes resulted from internal actions of the victim’s own body
C. was a hereditary disease
D. was a form of malignancy

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[简答题]Passage Five

Seventy years ago, a film featuring a talking mouse appeared in the United States. The character was only a pencil drawing, but it began a fantasy that America and much of the wider world have yet to grow tired of.
Predicting the future is always risky. But it’s probably safe to say that at least a few historians will one day speak of the 20^th century as America’s "Disney era". The reasons for Disney’s success are varied and numerous, but ultimately the credit belongs to one person -- the man who created the cartoon and build the company from nothing, Walt Disney. Ironically(讽刺地), he could not draw particularly well. But he was a genius in plenty of other respects. In business, his greatest skills were his insight and his management ability. But what really distinguished Disney was his ability to identify with his audiences. Disney always made sure his films championed the "little guy", and made him feel proud to be

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[单项选择]
{{B}}Passage One{{/B}}

Not so long ago, prediction markets (市场预测) were being considered as a fantastic new way to forecast everything from the completion date of a vital project to a firm’s annual sales. But although they have spread beyond early-adopting companies in the technology industry, they have still not become mainstream management tools. Even crazy advocates admit much remains to be done to convince doubtful managers of their value. "It’s still a pretty blessing business, " says Leslie Fine of CrowdCast, one of the firms that provide trading platforms for companies keen to pool the collective wisdom of their employees.
Prediction markets work by giving people virtual trading accounts that allow them to buy and sell "shares" that correspond to a particular outcome. Shares in an outcome that is considered more likely to occur then
A. It now has become a major management way for most companies.
B. The advocates are too optimistic about prediction market.
C. It is a way to know firms’ own covert knowledge.
D. It works by giving traders an actual trading accounts.

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According to the passage, how long may Cryptosporidium live in pool water a. Several seconds. b. Several minutes. c. Several hours. d. Several days.

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