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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.

I stood by and watched her and her mother busily decorating her college dormitory.Everything was in place，__1__ boxes under the bed and photos of her dearest friends on the wall.I closely monitored that this time things were __2__.I began to accept that her room at home is no longer __3__.It is now ours，our room for her when she visits.

I __4__ myself thinking of when I held her in my arms sitting in a chair by my wife's hospital __5__.One day old.So small，so beautiful，so perfect，so totally reliant on her new，untested parents.My life changed from the day I drove this little baby home from the __6__.I saw myself different that day，__7__.

The last few days __8__ she left for college，I touched her face—anything—__9__ that when my wife and I returned home，she would not be with us and there would be __10__ to touch.I had so much to say，but no words with which to say it.

Suddenly she looked up，__11__ me staring at her，which caused her to say to her mother，“Mom，Dad's looking at me funny.” She then said，“It'll be __12__，Dad.I'll be home from school soon.” I told her she would have a __13__ year.But I said little else.I was __14__　 that I would say something too small for what I was feeling，__15__ I only held onto our goodbye hug a little longer，a little __16__.

My wife's eyes followed her as she left us.Mine did not.I __17__ she hadn't gone.I knew that the life she was going __18__ was exciting and wonderful.I remembered what the world looked like to me when everything was __19__.

On the way back home，my eyes were wet and my heart was sore，and I realized that my __20__ was changed forever.

1．A.with　 　　　　 B．in

C．by　　　　 　　　 D．on

2．A.important 　　　　 B．enjoyable

C．convenient　 　　 D．different

3．A.mine　　 　　　　 B．hers

C．ours　　　 　　　 D．theirs

4．A.sent　　　 　　　　 B．stopped

C．found　　 　　　 D．set

5．A.desk　　　 　　　　 B．wall

C．room　　　 　　　 D．bed

6．A.kindergarten　 　　 B．hospital

C．school　　 　　　 D．park

7．A.neither　　 　　　 B．either

C．other　　 　　　 D．too

8．A.before　　 　　　　 B．after

C．since　　 　　　 D．when

9．A.wondering 　 　　　 B．saying

C．knowing　 　　　 D．showing

10．A.nothing　 　　　　 B．everything　

C．anything 　　　 D．something

11．A.observing　 　　　 B．catching　

C．watching 　　　 D．keeping

12．A.bad　　 　　　 B．wrong　

C．fine　　 　　　　 D．right

13．A.whole　　 　　　　 B．comfortable　

C．difficult 　　　　　 D．great

14．A.aware　　 　　　　 B．afraid　

C．sure　　 　　　　 D．sorry

15．A.but　　 　　　　 B．for　

C．so　　　 　　　　 D．and

16．A.better　 　　　　 B．tighter　

C．happier　 　　　 D．nearer

17．A.imagined　 　　　 B．thought　

C．guessed　 　　　 D．expected

18．A.across　 　　　　 B．by 　

C．towards　 　　　 D．over

19．A.good　　 　　　　 B．bright　

C．new　　 　　　　 D．perfect

20．A.life　　 　　　　 B．heart

C．dream　 　　　　 D．belief

 

A year ago, I paid no attention to English idioms, though my teacher emphasized (强调) the importance again and again. But soon, the importance of English idioms was shown 46 an amusing experience.
　　 One day, I 　47 to meet an Englishman on the road, and soon we began to talk. As I 48 about how I was studying English, the foreigner seemed to be 49 . Gently shaking his head, shrugging his shoulders, he said, “You don’t say!” “You don’t say!” I was puzzled. I thought, perhaps this is not a proper topic. “Well, 　50 change the topic.” So I said to him. “Well, 　51 we talk about the Great Wall? 　52 the way, have you ever 53 there?” “Certainly, everyone back home will laugh at me if I leave China without seeing 　54 . It was magnificent.” He was 　55 in thought when I began to talk 56 a tourist guide. “The Great Wall is one of the wonders in the world. We are very 　57 of it.”

Soon I was interrupted again by his words: “You don’t say!” I couldn’t help but 58 , “Why do you ask me not to talk about it?” “Well, I didn’t request you to do 59 , ” he answered, 　60 　surprised. I said, “Didn’t you say ‘You don’t say!’?” 　61 this, the Englishman laughed to tears. He began to 62 , “ ‘You don’t say’ actually means ‘really!’ It is an 　63 of surprise. Perhaps you don’t pay attention to English idioms.” 64 then did I know I had made a fool of 65 . Since then I have been more careful with idiomatic expressions.

46. A. in　　　　　　　　　　　　　 B. for　　　　　　　　　　　　 C. with　　　　　　　　　　　 D. to

47. A. came　　　　　　　 B. happened　　　　　　　 C. seemed　　　　　　　　 D. wanted

48. A. would talk　　　　　　 B. had talked　　　 　　　 C. was to talk　 　　D. was talking

49.A. understood　　 　　 B. understanding C. surprised　　　　　　　　　 D. surprising

50. A. to　　　　　　　　　　　　　 B. better　　　　　　　　　　　　　 C. not　　　　　　　　　　　　 D. like

51. A. shall　　　　　　　　 B. will　　　　　　　　　　　　 C. must　　　　　　　　　　　 D. do

52. A. On　　　　　　　　　 B. In　　　　　 　　　 C. All　 　　　　　　　　　 D. By

53. A. gone　　　　　　　　 B. visited　　　 　　 C. seen　 　　　　　　　 D. been

54. A. it　　　　　　　　　　 B. them　　　　 　　 C. anything　 　　　　　 D. something

55. A. high　　　　　　　　 B. highly　　　　 　　 C. deep　 　　　　　　　　 D. deeply

56. A. as　　　　　　　　　　　　　 B. to　　　 　　　　　　 C. with　 　　　　　　　 D. like

57. A. glad　　　　　　　　 B. satisfied　　 　　　　 C. proud 　　　　　　　　 D. familiar

58. A. to say　　　　　　　 B. asking　　 　　　　 C. ask　 　　　　　　　　 D. saying

59. A. this　　　　　　　　 B. so　　　　 　　　　　 C. anything　 　　　　　 D. me a favor

60. A. highly　　　　　　　 B. largely　　 　　　　 C. widely　　 　　　　　 D. greatly

61. A. Heard　　　　　　　 B. To hear　　 　　　 C. Hearing 　　　　　　　 D. Listening

62. A. explain　　　　　　　　　 B. shout　　　　　　　　　　 C. prove　 　　　　　　　 D. say

63. A. experience　　　　　　 B. expression　　 　 C. explanation　 　　　　　　 D. example

64. A. From　　　　　　　 B. Since　　 　　　　　 C. By　 　　　　　　　　　 D. Only

65. A. me　　　　　　　　　　　　 B. myself　　 　　 C. mine 　　　　　　　　　 D. somebody