2. 职称英语
  3. Are we at the beginning of another Age of Exploration? Perhaps even more imp

Are we at the beginning of another Age of Exploration? Perhaps even more imp

游客2025-04-15  50
问题     Are we at the beginning of another Age of Exploration? Perhaps even more important, are we at the beginning of【C1】______Age of Colonization? As the population of the world increases towards the point【C2】______the earth can no longer support all the people【C3】______on it, the second question becomes urgent. Will we discover a new world, 【C4】______Columbus did, on which human life will be possible? At this point in the space age, no one can really answer these questions. We can say, 【C5】______that we will not see tomorrow the kind of space travel that【C6】______fiction and the movies have shown. It will be a long time before we have flight that run【C7】______to human colonies on the moon or on, one of the planets. We are not even going to be able to【C8】______immediate advantages of the minerals that we may find on the planets【C9】______our own solar system.
    Great problems must be solved【C10】______we could send colonists out into place. The distances that must be【C11】______and the length of time it takes to do that can hardly be【C12】______There are also dangers that we still do not realty understand, from radiation, for example, or from pieces of matter【C13】______in space, or from contamination forms of life that might【C14】______there. There is also need for humans to take their own environment into space【C15】______them. So far no "island" has been discovered in space on which people can exist without systems that【C16】______life, and these systems must accompany any future space【C17】______Finally, on the most practical【C18】______there has to be enormous expense【C19】______in space exploration. The U. S. and Russian governments have already spent billions of dollars for projects【C20】______which they can receive a return only in knowledge and not in money. [br] 【C7】
选项 A、punctually
B、permanently
C、temporarily
D、regularly
答案 D
解析 词义辨析。flight在这里是名词“航班”的意思。punctually“准时地，按时地”；permanently“永久地”；temporarily“临时地”。根据句意，能与flight搭配且符合逻辑的副词只有regularly(定期地，固定地)，意为“定期航班”。故答案为D。
转载请注明原文地址:https://tihaiku.com/zcyy/4038833.html
相关试题推荐
随机试题
最新回复(0)