Which of the following is NOT included in the requirements for space travelers?

A．Mentally and physically healthy enough.

B．Communicative skills in language.

C．Sufficient experience in conducting laboratory work.

D．Enough long and proper training for flight.

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参考答案

【定位】第三段最后一句中的“…physical ability…training．”。
【答案详解】细节判断题。根据文章第三段最后一句可知，太空旅行要达到体能、心理、语言等方面的合格标准并经受太空延时训练和适应性训练。其中A、B、D三项均提到了，故选C。

1 Why is the space station reluctant to receive more paYing tourists according to Frank Culbert-son ?

A．Because a paying tourist may be ignorant of the space research work.

B．Because the paying tourists have to pay too much to gain space experience.

C．Because the space station isn' t big enough for the paying tourists.

D．Because as a place for doing research, the station should be highly efficient.

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2 "An outgoing commander" can probably be one who __________.

A．is a supervisor over the space station work

B．has his own crew members

C．is extremely capable

D．is going to be out of duty

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3 To be the second paying space tourist, one has to primarily__________.

A．pay a sum of money less than Tito' s fare

B．do more mental and physical exercises

C．receive necessary training voluntarily

D．pay a sum of money no less than Tito' s fare

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