Have you ever been in a meeting while someone was making a speech and realized suddenly that your 　36 was a million miles away? You probably felt 　37 and made up your mind to pay attention and never daydream again. Most of us, from earliest school 38 , have been told that daydreaming is a waste of time.

“ On the contrary, ” says L. Giambra, an expert in psychology, “ daydreaming is quite 39. Without it, the mind couldn’t get done all the 40 it has to do during a normal day. You can’t possibly do all your thinking with a conscious mind. 　41 , your unconscious mind is working out problems all the time. Daydreaming then may be one 42 in which the unconscious and conscious 43 of mind have silent dialogue.”

Early experts in psychology paid no attention to the importance of 44 or even considered them harmful. At one time daydreaming was thought to be a cause of some mental 　45 . They did not have a better understanding of daydreams 46 the late 1980s. Eric Klinger, a professor of psychology, is the writer of the book Daydreaming. Klinger says, “ We 47 now that daydreaming is one of the main ways that we 48 our lives, learn from our experiences, and plan for our future. ” Daydreams are really a reflection（反映）on the things we 49 or the things we long for in life.

Daydreams are usually very simple and 50 , quite unlike sleep dreams, which may be 51 to understand. It’s easier to gain a 52 understanding of your life by paying close attention to your daydreams than by trying to examine your sleep dreams carefully. Daydreams help one 53 the difficult situations in life and find out a possible way for dealing with them.

Daydreams cannot be predicted（预知）. They move off in 　54 directions, which may be creative and full of useful ideas. For many famous artists and scientists, daydreams were, and are a main source of creative energy.

So next time you catch 　55 daydreaming, don’t stop. Just pay attention to your dreams. They may be more important than you think.

36. A. business　　 B. feeling　　　　 　　 C. mind　　　　 D. family

37. A. hurried　　 　 B. worried　　　 　　 C. lonely　　　 D. sorry

38. A. days　　　 　 B. ages　　　　 　　　　　　 C. lessons　　　 D. times

39. A. normal　　 　 B. ordinary　　　 　　　　　　 C. necessary　　 D. possible

40. A. controlling　 B. imagining　　 　　　 C. thinking　　 　 D. working

41. A. Gradually　 　 B. However　　　 　　 C. Actually　　 D. Of course

42. A. place　　　 　 B. result　　　　 　　　 C. effect　　　 D. way

43. A. states　　　 B. example　　　 　　　 C. shape　　　 D. level

44. A. research　　 B. daydreams　　 　　 C. dialogue　　 D. minds

45. A. weakness　　 B. power　　　　 　　 C. illness　　　 　 D. fault

46. A. at　　　　　 　　　 B. until　　　 　　　　 C. after　　　 　 D. before

47. A. suppose　　 　　　 B. conclude　　　 　　 C. know　　　　 　　　 D. think

48. A. learn　　　 B. organize　　　 　　　 C. expect　　　 D. determine

49. A. think　　　 B. want　　　　 　　　 C. wish　　　 　 D. fear

50. A. direct　　　 B. sudden　　　 　　　　　　 C. long　　　　 D. clear

51. A .slow　　　 　 B. indirect　　　 　　　 C. familiar　　 　 D. hard

52. A. happy　　　 B. deep　　　　 　　　　 C. simple　　　 D. satisfying

53. A. experience　 B. defeat　　　　 　　　 C. recognize　　 D. take

54. A. usual　 　　　 B. strange　　　 　　　 C. scientific　　 D. unexpected

55. A. anybody　 　 B. yourself　　　 　　　　　　 C. one　　　　 D. somebody

The history of inventions leading up to the modern computer is a story of people trying hard to create machines that complete many tasks automatically, such as adding up large numbers, controlling airplanes in flight, etc. Many of the earliest methods of recording and counting data still remain mysteries (something that is not understood).

In England you can visit Stonehenge, where a mysterious collection of large stones has stood since 1,500 BC. Scientists have never discovered the stones’ purpose. However, by observing the way the sun shines between the stones, many people believe Stonehenge was used to predict the seasons and eclipses (蚀) of the sun and the moon.

Another early method of computing was a brass calculator, which existed in Spain nearly 1,000 years ago. The machine was shaped like a human head, with numbers instead of teeth. The shape became its undoing; some people were afraid the machine was supernatural, and destroyed it. In early recorded history, calculators that used the sun, or objects in the night sky, were developed to be used on ships to explore the world beyond the Tigris-Euphrates Valley of southwestern Asia. One such device, dating from the first century, worked with a system of gears designed to track the orbits of stars and planets. These orbits became the marked routes for ships.

In ancient Rome and Greece, one of the earliest machines ever used for processing numbers was the abacus. This simple collection of beads has been used for centuries in China and other Asian countries. The abacus is built with columns of beads attached to a rectangular wooden frame. Inside the wooden frame is a crossbar that separates each column of beads into two sections. In the Chinese version there are two beads above the bar and five below. Each column of beads means a different range of numbers. The first column from the right represents ones, the second tens, the third hundreds, etc. By moving beads, calculations are quickly completed. Because values are shown by positions, the abacus is very valuable in teaching arithmetic to blind students.

Experienced users operate the abacus very quickly. After World War II, a speed competition was arranged in Japan between the fastest calculator operator in the US Army and an employee of the Japanese Post Office using an abacus. The American was defeated easily by the moving beads of his opponent.

62. What does the author mainly talk about in this passage?

A. Old methods to manage data.　　　　　　　　 B. The great inventions in science.

C. The mysterious historical events.　　　　　 D. Theory and practice in computing.

63. How does the author try to prove his point?

A. By making comparisons.　 　　　　　　 B. By analyzing the cause.

C. By telling a true story.　　　　　　　 D. By giving examples.

64. The underlined word “undoing” in Paragraph 3 probably means ________.

A. cause of bad luck　　 B. reason for change　 C. way to escape　　 　　 D. loss of power

65. What will the author most probably discuss in the paragraph that follows?

A. The fast development of computer science.　

B. The use of abacus in Japanese Post Office.

C. The inventor of the first modern computer.　　

D. The invention of the first analytical engine.