1．According to Hawking, what is the first step for humans to spread out into space?

　　A．To send people to Mars.

　　B．To build a lunar base.

　　C．To send astronauts to the Moon.

　　D．To change the future of humanity.

　　解析：选C　细节理解题。由文章第三段的第一句可知，人类要向太空扩展应在2020年之前把宇航员送到月球以重启太空探索，故选C项。

　　2．The underlined word "drained" in Paragraph 5 can be replaced by "________"．

　　A．speeded up　　　　　　 B．stored

　　C．used up D．explored

　　解析：选C　词义猜测题。由该词前面的"natural resources"和后面的"at an alarming rate"可以推断出，drain在这里是"用完，耗尽"的意思，故选C项。

　　3．What is Hawking's attitude towards the Earth's future?

　　A．Pessimistic. B．Confused.

　　C．Positive. D．Indifferent.

　　解析：选A　观点态度题。由文章中反复出现的"warned"以及第五段的内容可以推断出，霍金对地球的未来持悲观的态度，这也是他提出人类要离开地球的原因，故选A项。

　　4．The reason why humans must leave the Earth soon is that ________.

　　A．the Earth is under threat and the human race is in serious danger

　　B．humans have found other forms of energy to move to a new planet

　　C．a new and ambitious space program would excite young people

　　D．astronauts have found a better world in space than the Earth

　　解析：选A　细节理解题。由第一段的第二句和第五段的第二句可知，人类必须离开地球的原因是：人类处于危险之中，地球受到威胁，故选A项。

　　B

　　"When I was a child, space was all I dreamt and talked about. My parents thought it was just a phase (阶段), but as I grew up I became greatly interested in science. I never doubted that one day I'd be an astronaut." As an adult, Anousheh Ansari left her home country Iran, settled in the USA and started a company. The company was so successful that she was finally able to sell it for $750 million. "The first thing that crossed my mind was that my life's goal might now be within reach and I signed up to become the first female private space explorer at a cost of around $20 million."

Anousheh set off on September 18th along with two astronauts. On the space station, each member of a space crew (全体机组人员), tourist