(一) 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__！
