While many resources are spent on what seems a small return, the exploration of space allows creative, brave and intelligent members of our species to focus on what may serve to save us. While space may hold many wonders and explanations of how the universe was formed or how it works, it also holds dangers. The danger exists, but knowledge can help human beings to survive. Without the ability to reach out across space, the chance to save ourselves might not exist.

　　While Earth is the only planet known to support life, surely the adaptive ability of humans would allow us to live on other planets. It is true that the lifestyle would be different, but human life and cultures have adapted in the past and surely could in the future.

　　本文是一篇议论文，向我们阐述了人类进行太空探索的原因。人类的基因构成决定了人类探索其他领域包括太空的能力。人类探索太空可能暂时没有多大用处，但是在将来这可能会帮助人类生存下去。

　　1．Why does the author mention the questions in Paragraph 1?

　　A．To express his doubts. B．To compare different ideas.

　　C．To introduce points for discussion.D．To describe the conditions on Earth.

　　答案：C。推理判断题。作者在第一段提出问题目的是引出下面要讨论的话题。

　　．What is the reason for exploring space based on Paragraph 2?

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