四、完形填空（共15分）
（一）每空提供四个选择项，选择最佳答案填空。（5分）
The story of Franklin’s kite is known everywhere. He had been experimenting about electricity, and in 1751 had published a paper 51 that electricity and lightning were the same thing. Both were 52 , both were of the same white color, both made a 53 , both made crooked flashes, and both could pass through metal.
In order to 54 his claim, he and his son took a kite made of silk, and added a long 55
to the top and a piece of silk to the end of the string with which he 56 the kite. A metal key was hung 57 the silk and the string met. They flew the kite up into a thunderstorm, 58
themselves dry under a roof. When the kite reached the storm clouds, Franklin noticed that all the 59 parts of his string began to stand up and shake. When the kite touched lightning, a spark ran down the string from the sky; a rush of electric sparks began to appear on the key. As the string became 60 , the sparks came faster. They were sparks of electricity. Lightning was indeed electricity.
51. A. said B. saying C. talking D. talked
52. A. dark B. dim C. bright D. black
53. A. voice B. noisy C. sound D. noise
54. A. test B. declare C. praise D. improve
55. A. thread B. wire C. pole D. string
56. A. held B. made C. controlled D. got
57. A. here B. which C. there D. where
58. A. keeping B. taking C. preventing D. stopping
59. A. tight B. loose C. long D. short
60. A. drier B. dry C. wetter D. wet
(二)从所给词汇中为每空选择一个适当的词。有必要时，改变其形式。（10分）
appearance, fastens, looses, damaged, fixed, metal, watertight,
tool, waterline, neck, divers, helmet, canvas, plastics
Some men spend much of their time under water. They are called 61 . If anything goes wrong with a ship below the 62 , a diver puts on his suit and goes down with his 63 to repair the damage. He wears a special kind of suit made of rubber and 64 which keeps out the water. It covers his body from feet to 65 but leaves his hands free. His sleeves end in 66
cuffs (袖口) at the wrist. He puts on a heavy 67 connected with a tube which brings air from above the surface of the water. The helmet has windows and 68 to the neck of his suit. In order that the diver may sink, his suit is “padded” back and front with plates of lead and shoes are weighed with 69 . His clothes weigh about 150 pounds. Would you like to be a diver, and perhaps go down to the bottom of the ocean to save the lives of men in a 70 submarine?本新闻共 6页,当前在第 4页 1 2 3 4 5 6 |
