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Very high waves are destructive when they strike the land. Fortunately, this seldom happens. One reason is that out at sea, wave
Very high waves are destructive when they strike the land. Fortunately, this seldom happens. One reason is that out at sea, wave
admin
2015-09-05
53
问题
Very high waves are destructive when they strike the land. Fortunately, this seldom happens. One reason is that out at sea, waves moving in one direction almost always run into waves moving in a different direction. The two sets of waves tend to cancel each other out. Another reason is that water is shallower near the shore. As a wave gets closer to land, the shallow bottom helps reduce its strength.
But the power of waves striking the shore can still be very great. During a winter gale, waves sometimes strike the shore with the force of 6, 000 pounds for each square foot. That means a wave, 25 feet high and 500 feet long it face, may strike the shore with a force of 75 million pounds.
Yet the waves, no matter how big or how violent, affect only the surface of the sea. During the most raging storms, the water a hundred fathoms(600 feet)beneath the surface is just as calm as a day without a breath of wind.
We know from this passage that out at sea, when waves going in opposite directions meet, their force______.
选项
A、causes great damage
B、is liable to lessen
C、extends to the ocean floor
D、increase rapidly
答案
B
解析
本题为句意理解题。从第1段中的3、4两句可知,从不同方向涌来的海浪相遇时,它们的力量就会“tend to cancel each oth-er out”,这与选项B的“is liable to lessen”同义。
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本试题收录于:
英语题库普高专升本分类
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英语
普高专升本
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