通读下面短文，掌其大意，然后在每小题所给的四个选项中，选出一个最佳答客，并将答题卡上对应题目所选的选项涂黑。

　　   A wealthy man loved his son very much. As he wanted his son to lead a happy life, he decided to send him to see a wise old man for his advice on happiness.

　　   When the old man learnt about his   46  , he handed the boy an empty bowl and said, “Go to the river miles away and   47   it with water. I will tell you about it   48   no water is split(洒) when you reach here.” Although the boy was very surprised at this, he had no choice but to   49   this task.

　　   The boy   50   on foot for the river and some time later came back with a bowl of water. The old man asked him “Did you notice the beautiful flowers along the road and the birds singing in the trees?” The boy could say nothing about them because he gave his   51   attention to the bowl in his hands.

　　The old man smiled and said, “Bring me   52   bowl of water, but this time enjoy the flowers and the singing of birds as well.”

　　    When he returned, the boy was able to   53   everything he had seen to the old man. But when he looked down at his bowl, he found   54   that most water was gone. He forgot all about his bowl while enjoying the beautiful things along the road.

　　   “Well, young man,” the old man said. “Enjoy the beauty of the world, but never forget the water in your bowl. This is the   55   of happiness.”

　　46. A. research             B. promise             C. purpose             D. experience

　　47. A. wash                 B. fill                 C. compare             D. connect

　　48. A. if                     B. until                 C. unless             D. while

　　49. A. put out                B. pick out             C. point out             D. carry out

　　50. A. set off                 B. paid off             C. got off             D. kept off

　　51. A. public                 B. weak                 C. quick                 D. full

　　52. A. any                 B. ever                 C. another             D. the other

　　53. A. change                 B. imagine             C. examine             D. describe

　　54. A. lazily                 B. sadly                 C. luckily             D. excitedly

　　55. A. result                 B. cause                 C. secret                 D. decision