Ⅲ.完形填空（每小题1分，共20分）
阅读下面短文，掌握其大意，然后从各小题所给的四个选项（A、B、C、D、）中，选出最佳选项。
We all know something about Thomas Edison. He was a great American   21   .He was in school for only a short time.  22  , he had to leave the school and   23  himself at home and learned a lot. When Edison grew up, he had his own lab. He worked hard and hardly   24   to have a rest.
One day a friend of his brought a young man into his lab. He   25  the young man to Edison. He said the young man had studied in a famous university in Germany and had a lot of   26   of physics and maths. Edison was glad to work with a man like him and   27   him as a helper. A few weeks later, the young   28   about Edison’s past. He began to look down on him. Edison   29   about it, but he said   30   .
Once the young man came into the lab while Edison   31   an important experiment. He stood near the table   32   he didn’t help him. Edison stopped   33   out a bottle and said, “Go to calculate (计算)its volume(容积)and tell me the   34   in two hours.”
At first the young man thought it easy to do it. Soon he   35   it difficult. Two hours later Edison went into his office and saw a lot of paper and books on his desk. Of course he couldn’t compute the volume in the time   36   .
“Why not pour some   37   into the bottle?” said Edison. “Then you’ll   38   calculate its volume!” Having heard this, the young man’s   39   turned red, and he knew Edison was really    
40  than him!
21.A. doctor          B. player               C. writer               D. inventor
22.A. Soon            B. After                C. Later on            D. Soon after
23.A. teach            B. play with           C. study                D. enjoy
24.A. forgot          B. remembered      C. wanted             D. hoped
25.A. showed         B. pushed              C. introduced         D. threw
26.A. news            B. books                C. knowledge         D. dictionaries
27.A. employed     B. asked                C. made                D. watched
28.A. beard           B. learned              C. read                  D. told
29.A. told              B. was told            C. said                  D. was said
30.A. something     B. everything         C. nothing             D. all
31.A. did               B. had                   C. was doing          D. was having
32.A. but              B. and                   C. as                    D. while
33.A. bringing              B. to bring             C. taking               D. to take
34.A. result           B. way                 C. idea                  D. opinion
35.A. knew            B. saw                   C. learned              D. found
36.A. given           B. followed           C. said                  D. taken
37.A. oil               B. salt                   C. water                D. food
38.A. carefully       B. slowly               C. easily                D. quietly
39.A.head              B. face                  C. eyes                  D. ears
40.A. more polite   B. stricter                     C. more kind-hearted     D. cleverer