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[填空题]
Crop Circle Mysteries
They are giant geometric patterns, which appear over-night in a field of crops. Many people believe that they are made by aliens.
(46) . "Crop circle", as the mysterious patterns are called, became a hot phrase this month.
(47) . It’s believed to be the world’s first three-dimensional crop circle. The giant crop circle gives an impression of looking down on skyscrapers from above.
(48) . Crop circles were first widely noticed in the late 1970s as many mysterious circles began appearing-in crop fields throughout the English countryside. People were intrigued by these giant patterns. They were huge (at least tens of meters in diameters) and popped up over-night.
(49) .
Various scientific and pseudo-scientific explanations were put forward to explain the phenomenon. Some hold that they were left by alien spaceships. Others say that they are simply an elaborate prank.
(50)
[单项选择]They hold different opinions（）whether the giant panda belongs to the bear family or not.
A. as well as
B. as regards
C. as far as
D. as to
[简答题]Once a circle missed a wedge. The circle wanted to be whole, so it went around looking for its missing piece. But because it was incomplete and therefore could roll only very slowly, it admired the flowers along the way. It chatted with worms. It enjoyed the sunshine. It found lots of different pieces, but none of them fit. So it left them all by the side of the road and kept on searching. Then one day the circle found a piece that fit perfectly. It was so happy. Now it could be whole, with nothing missing. It incorporated the missing piece into itself and began to roll. Now that it was a perfect circle, it could roll very fast, too fast to notice flowers or talk to the worms. (46) When it realized how different the world seemed when it rolled so quickly, it stopped, left its found piece by the side of the road and rolled slowly away.
(47) The lesson of the story, I suggested, was that in some strange sense we are more whole when we are missing something. The man who
