Washington — The largest ozone (臭氧)hole ever observed has opened up over Antarctica, according to the scientists of the US National Aeronautics and Space Administration (NASA). They believe it is a sign that ozone — destroying gases produced years ago are just now causing the largest quantities of ozone to disappear.

　　This year’s South Pole ozone hole spreads over about 28.5 million square kilometers, an area three times larger than the landmass of the United States.

　　Pictures of the hole have been offered by NASA. The hole appears as a giant blue mass, totally covering Antarctica and stretching to the southern tip of South America.

　　“The last time the ozone hole was close to this size was in 1998, when it spread over about 27.2 million square kilometers,” NASA said.

　　Paul Newman, who works with NASA’s Total Ozone Mapping Spectrometer (TOMS) instrument on a NASA satellite, said ozone watchers had expected a big hole this year, but not this big.

　　The Antarctica ozone hole, first observed in 1985, is caused by the depletion (损耗) of Earth protecting ozone by human-made chemicals such as chlorofluorocarbons, known as CFCs.

　　“Even though these chemicals were not allowed to use from the beginning of 1987, they remain in the atmosphere and will continue to do so for years,” Newman said.

　　“This year’s large hole may have been caused by a change in a swirling high-level air current over Antarctica, which circles the area and contains the zone hole,” Newman said.

56. The text is mainly about ____ .

　 A. the discovery of the largest ozone hole           B. the discovery of the Antarctica ozone hole

　 C. the history of the Antarctica ozone hole          D. the size of the largest ozone hole

57. The time 1985 was talked about in the text because it was when the Antarctica ozone hole ____ .

　 A. was watched by Newman   B. was first closed   C. disappeared   　 D. was first watched

58. There is a giant ozone hole over Antarctica because ____ over there.

　 A. human-made chemicals have protected ozone     B. ozone has protected the earth

　 C. human-made chemicals have destroyed ozone     D. human-made chemicals have increased ozone

We　　 the last bus and did’t have any money for taxi，so we had to walk home.?

A.reached　　　　　 B.lost　　　　　　　 C.missed　　　　　　 D.caught

 

“Are you too stupid to do anything right？”These words—said by a woman to a little boy who was obviously her son—were spoken 　1 he had walked away from her. They boy returned, his eyes down-cast.

Not a 　2　 moment, perhaps, 　3　 small moments sometimes last a very long time. And a few words—though they mean 　4　 at the time to the people who say them—can have great 　5　 .

I recently heard a story from a man named Malcolm Dalkoff. For the last 24 years he has been a professional 　6　 . Here is what he told me:

As a boy in Rock Island, Dalkoff was terribly 　7　 . He had few 　8　 and no self-confidence. One day, his English teacher, Ruth Brach, gave the class an assignment（作业）. The students had been reading To Kill a Mockingbird. Now they were to write their own chapter that would 　9　 the last chapter of the novel.

Dalkoff wrote his chapter and turned it 　10　 . Today he can not recall anything 　11 about the chapter he wrote, or what 12　 Mrs. Branch gave him. What he does remember is the four words Mrs. Brach wrote in margin（空白处）of the paper：“This is 　13　 writing.”

　　 Four words. They 　14　 his life.

　　 “ 　15　 I read those words, I had no idea of who I was or 　16　 I was going to be.”he said.“After reading her note, I went home and wrote a short story, something I had always been 　17　 of doing but never believed I could do.”

　 Over the rest of that year in school, he wrote many short stories and always brought them to school for Mrs. Brach to evaluate. She was 　18　 , tough and honest.“She was just what I 19 ,”Dalkoff said.

　 His confidence 　20 　 . Dalkoff believes that none of this would have happened if that woman had not written those four words in the margin of his paper.

1．A．where　　　　 B．why　　　　 C．because　　　 D．when

2．A．wonderful　　 B．difficult　　　 C．funny　　 D．big

3．A．yet　　　　　 B．although　　 C．for　　　 D．therefore

4．A．much　　　　 B．little　　　　 C．more　　　 D．most

5．A．meaning　　　 B．power　　　 C．force　　　 D．sense

6．A．writer　　　　 B．player　　　 C．poet　　　 D．singer

7．A．sorry　　　　　 B．proud　　　 C．sick　　　 D．shy

8．A．books　　　　 B．ideas　　　　 C．friends　　 D．chances

9．A．follow　　　　 B．match　　　 C．decide　　 D．improve

10．A．on　　　　　　 B．in　　　　　 C．out　　　　 D．down

11．A．more　　　　 B．again　　　　 C．special　　　 D．different

12．A．honors　　　　 B．remarks　　 C．prizes　　　 D．grade

13．A．poor　　　　　 B．serious　　　 C．good　　　　 D．silly

14．A．changed　　　 B．damaged　　 C．affected　　 D．improved

15．A．Unless　　　　 B．Until　　　 C．When　　　 D．While

16．A．what　　　　　 B．how　　　　 C．where　　　 D．which

17．A．tired　　　　　 B．fond　　　　 C．proud　　　 D．dreaming

18．A．strict　　　　　 B．kind　　　　 C．encouraging　 D．praising

19. A．feared　　　　 B．needed　　　 C．expected　　 D．loved

20．A．grew　　　 　B．lifted　　　　 C．appeared　　 D．returned

 

　　第二节：完形填空（共20小题；每小题1.5分，满分30分）

阅读下面短文，掌握其大意，然后从36—55各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。

I got up and dressed, with my violin under my jacket, and went out into the streets to try my luck. I wandered about for  36  , looking for a likely spot,  37  as though I were about to commit a crime. Then I stopped   38   under a bridge near the station and  39  to have a try.

  I felt tense and nervous. One moment I was  40  the hurrying crowds ,   41  I stood apart, my back to the wall, my hat on the side of the street  42  me , the violin under my chin.

   The first  43  I played were loud and unskilled, then they  44  down and began to run more smoothly.   45  ，I was neither caught nor told to shut up.  46  , nobody took any notice at all. Then an old man without stopping   47   threw a penny into my hat, as if getting rid of some guilty evidence.

   Other pennies followed, slowly  48   steadily , dropped by   49  who appeared not to see or hear me. It seemed too easy, like a secret  50  .

   I   51  there for several days , gradually getting the  52  of the trade by trial and error(反复试验). It was not a good thing,   53  , to let the hat fill up with money; nor was it wise to empty it completely. Placing a couple of pennies in the hat to  54   the thing going soon became a  55  rule.

36. A. an hour         B. a day              C. some time                D. too long

37. A. running                     B. crying      C. feeling                 D. sounding

38. A. at first                   B. at last       C. at most                   D. at once

39. A. wanted            B. allowed            C. refused                   D. decided

40. A. part of                B. familiar with     C. far from               D. away from

41. A. the last                     B. once again       C. the next                    D. as a result

42. A. before                B. behind            C. next to                 D. beside

43. A. music                     B. notes               C. piece                      D. parts

44. A. broke                  B. fell            C. settled               D. slowed

45. A. Surprisingly        B. Interestingly      C. Undoubtedly            D. Pitifully

46. A. In a word                B. Moreover    C. Indeed               D. That is

47. A. immediately        B. secretly           C. bravely                    D. carefully

48. A. but                         B. and               C. while                     D. or

49. A. the old                  B. fans       C. the passengers   D. shadows

50. A. trick                    B. business     C. story               D. joke

51. A. remained                   B. searched         C. left              D. worked

52. A. value                   B. truths             C. wealth                   D. conditions

53. A. however       B. therefore         C. for example            D. after all

54. A. make                      B. open          C. leave                         D. start

55. A. normal        B. regular              C. smart                  D. suitable