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Dr. Carl Sagan has been a leader in space exploration. He is an astronomer at Cornell University and director of the Laboratory for Planetary Studies. The author talked with Dr. Carl Sagan about how he became an astronomer.
Q: At the age of five did you know what the stars were?
A: I didn't know what they were, so I asked my friends and some older children, I got answers like “They're lights in the sky, kid.”That wasn't much of an answer. What were they? Were they little electric light bulbs(灯泡) held by black wires you couldn't see?
Q: If there are creatures living on another planet, what do you think they would look like?
A: I can't imagine what they'd look like, and they couldn't imagine what we'd look like. All of life on Earth is the same, except for some external(外部的) differences in form. Every one of us on Earth, from bacteria(细菌) to human being; is made up of the same kinds of proteins and the same kinds of nucleic acids(核酸). But on another planet, everything is different, and I would expect that the organisms would be totally different from us.
Q: Do you think we should have a manned mission(工作团)to Mars?
A: I don't think there's any reason to send people to Mars if our goal is to find out about Mars. Let's send robots instead. They're cheaper. There's no risk of human lives. Robots can go to more dangerous places. But I think there are reasons for sending people there that are not connected to finding out about Mars. Planning for a manned mission to Mars would force us to improve some of our technology. It would encourage the major technological nations to come together for the project. Space flight also speaks to something deep within us. A human mission to Mars would provide a sense of adventure. It would help to stimulate a new generation of scientists, and it would make all people feel a little more optimistic about what we can do as a planet.
Q: What advice would you give a young person who wants to be an astronomer?
A: I'd say,“Study physics. But before you can study physics you have to know mathematics, so study mathematics.”I would also encourage them to read a lot, be curious, and ask questions.
1．As a boy, Carl Sagan didn't ________.
[ ]
A．often ask questions
B．always get satisfying answers from his friends
C．try to do well in physics
D．read a lot
2．We human beings are interested in finding life on another planet because ________.
[ ]
A．we are naturally drawn to other things that are alive and are curious about them.
B．most of us want to have more friends.
C．some of us are eager to rule the universe
D．scientists want to show how modem our technology is
3．Robots can be sent to Mars because ________.
[ ]
A．we have enough robots
B．they're strong and big
C．everything is easy to them
D．some duties are too dangerous for human being to fulfill
4．A manned mission to Mars ________.
[ ]
A．is reasonable if the goal is to collect information
B．is O.K. if robots are sent as well
C．can make us improve some technology to prepare for it
D．can make strong nations come together
5．Which of the following statements is true?
[ ]
A．Carl Sagan is an astronaut.
B．Carl Sagan used to ask friends silly questions.
C．Carl Sagan thinks we can't imagine what creatures on another planet look like until they can imagine our appearance.
D．Carl Sagan encourages young people interested in astronomy to work hard at physics as well as mathematics.
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1.The cell phone s________ was poor, and my calls kept getting cut off.
2.I would a_________ it if you could come and help me tidy up the garden.
3.P________, I think he is a very good man, though you may not agree.
4.It is o_________ that he has been at home because he phoned us with the home telephone.
5.He c________ me $15 for repairing the watch, which was too much.
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单词拼写
62. To be h____________, you have made some mistakes in your report.
63. Musicians like to play to p____________ in the street or subway so that they can earn some extra money for themselves.
64. The photo r_____________ me of the days I spent on the far-away farm.
65. It is o____________ that a healthy diet does us a lot of good.
66. Festivals such as Obon and Halloween are held in m____________ of the dead.
67. You’d better a____________ to your mother for your rudeness.
68. At weekends, fast food restaurants like KFC are full of c____________.
69. Riding a bike helps develop a child’s sense of b____________.
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第四部分：
第一节：短文填词。(共l0小题；每小题1分，满分10分)
阅读下面短文，根据以下提示：1)汉语提示；2)首字母提示；3)语境提示，在每个空格内填人一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确、拼写正确。
Dr.Carl wight is an expert on the_________(环境)。He 76___________
speaks to our r__________,“It is clear that in the next 77___________
few years the Earth’s c________ is going to change.I’m 78__________
afraid tht this probably means that many kinds
of animals,such as the South China tiger,are going
to ______(消失)soon.Changes in climate are 79__________
going to certainly _________(影响) people’s lives too. 80__________
Because of g_______ warming,the sea has already 81__________
destroyed parts of Britain.It is o_______that this 82__________
_________(破坏) will become more dangerous in 83___________
the future.We have to take i_________action,or 84___________
I_________(担心)that life on Earth will get worse.” 85___________
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单词拼写（共10小题；每小题1分，满分10分）
56. He c___________ his speech with some amusing remarks and then left.
57. Mr. White has a___________ a big surprise party for his wife’s birthday.
58. He can a_____________ more work in a day than anyone else I know in the company.
59. His first speech as president made a deep i___________ on his audiences.
60. He is o____________ and he can take positive action even when faced with difficulties.
61. Who was the ____________(先前的)owner of the old house?
62. He was brave enough to ___________(揭露) the corrupt official’s crimes.
63. The football match was so exciting that it __________(使激动)all the football fans.
64. Several _____________ (热情的) young teachers have just started working at the school.
65. The entrance is in ____________(经常的) use; do not block it.
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