完形填空。      It was at a concert that I happened to find David. He was holding his head at a strange    1   as if he were
staring down at something. Then the truth struck me. He was blind. The last thing he remembers    2   was
his daughter being born. Then the world went    3  .
     Bad luck is no stranger to this 44-year-old man. His mother died of cancer, and his weak father had to    4   
11-year-old David to the care of the state.
     Things seemed always to go from bad to    5  . Two years ago, his beloved guide dog pulled him out of the 
  6   of a truck. David was not hurt. The dog    7  .
     But David does not feel sorry for himself. "These are just little obstacles (障碍) you have to    8   in your life,"
he said.
     He has to make a daily two-hour trip to his working place-the X-ray department of an    9   room.
     It was a hard job to   10 . Before he got it, David was determined to escape the workshop run by the
Lighthouse, an organization   11  to help blind people. He wanted a job of developing X-ray film, something   12 ,
not just he, must do in the dark, including people with   13  eyesight. The Lighthouse called many hospitals, with
no result,   14  they offered to pay his first three months" salary.
     David works alone in a dark room that   15  of chemicals. He cannot wear gloves.   16 , he could not feel.
Since this is an emergency room, lives can be put   17  or out of danger. His directress says she trusts him 100
percent.
     He makes $ 20 000 a year. But his motivation (动机) goes  18  money. "By working, I can actualize my own 
 19 . That"s the most important!" he said.
     What a shining example for us to   20 !

(     )1. A. ankle       (     )2. A. doing       (     )3. A. blank       (     )4. A. bring up    (     )5. A. worse       (     )6. A. bottom      (     )7. A. killed      (     )8. A. seek        (     )9. A. upstairs    (     )10. A. deal with  (     )11. A. intended   (     )12. A. everyone   (     )13. A. common     (     )14. A. because    (     )15. A. consists   (     )16. A. However    (     )17. A. at risk    (     )18. A. into       (     )19. A. blindness  (     )20. A. set

B. direction      B. feeling        B. colorful         B. bring in      B. good           B. path             B. sacrificed      B. overcome        B. emergency      B. get through    B. aimed          B. nobody         B. poor            B. if             B. smells         B. Unfortunately   B. in brief       B. beyond         B. income         B. take

C. angle        C. seeing         C. empty           C. give up    C. better        C. wheel            C. died         C. surround      C. information    C. take up      C. offered        C. someone      C. normal          C. in case      C. allows       C. Otherwise       C. up with     C. onto          C. value         C. hold

D. altitude          D. hearing         D. silent              D. give in       D. mad              D. back                D. injured         D. search           D. underground                 D. come by         D. devoted          D. none             D. actual              D. even though    D. fills           D. Besides           D. in charge       D. below             D. experiences      D. follow