2. 外语
  3. A. collision B. consequences C. course D. cure E. favor F. gradually G. judging H. locate I. manipulati

A. collision B. consequences C. course D. cure E. favor F. gradually G. judging H. locate I. manipulati

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问题    A. collision   B. consequences    C. course   D. cure       E. favor
   F. gradually   G. judging      H. locate   I. manipulating    J. oppose
   K. orbit     L. rare       M. really   N. surround      O. unique
   Unless we spend money to spot and prevent asteroids (小行星)now, one might crash into Earth and destroy life as we know it, say some scientists. Asteroids are bigger versions of the meteorites (流星)that race across the night sky. Most 【C1】______ the sun far from Earth and don’t threaten us. But there are also thousands whose orbits put them on a 【C2】______ course with the Earth.
   Buy $50 million worth of new telescopes right now. Then spend $10 million a year for the next 25 years to 【C3】______ most of the space rocks. By the time we spot a fatal one, we’ll have a way to change its 【C4】______, the scientists say. Some scientists 【C5】______pushing asteroids off course with nuclear weapons. But the cost wouldn’t be cheap. Is it worth it? Two things experts consider when 【C6】______ any risk are how likely the event is and how bad the 【C7】______ if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500,000 years. Sounds pretty 【C8】______ —but if one did fall, it would be the end of the world. "If we don’t take care of these big asteroids, they’ll take care of us. It’s that simple," says one scientist.
   The 【C9】______, though, might be worse than the disease. Do we 【C10】______ want fleets of nuclear weapons sitting around on Earth? "The world has less to fear from doomsday rocks than from a great nuclear fleet set against them," said a New York Times article.
【C10】
选项
答案M
解析 空格所在句结构完整，因此空格处应填入副词。下一句提到，核武器给世界造成的恐惧比毁灭性小行星大得多。可见作者并不希望核武器布满地球，故填入起强调作用的really“真正地”，增强反问语气，答案为M。
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