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全国2005年1月高等教育自学考试综合英语(二)试题5

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Passage 4A geyser is the result to underground water under the combined conditions of high temperatures and increased pressure beneath the surface of the depth. Water that seeps down in cracks and fissures until it reaches very hot rocks in the earth’s interior and becomes heated to a temperature in excess of 290 degrees F. Because of the greater pressure, it shoots out of the surface in the form of steam and hot water. The result is a geyser.For the most part, geysers are located in three regions of the world: New Zealand, Iceland, and the Yellowstone National Park area of the United States. The most famous geyser in the world is Old Faithful in Yellowstone Park. Old Faithful erupts almost every hour, rising to a height of 125 to 170 feet and expelling more than ten thousand gallons during each eruption.16.In order for a geyser to eruptA. hot rocks must rise to the surface of the earth.B. water must flow underground.C. it must be a warm day.D. the earth must not be rugged or broken.17.Old Faithful is located inA. New Zealand. B. Iceland.C. the United States. D. England.18.Old Faithful eruptsA. every 10 minutes. B. every 60 minutes.C. every 125 minutes. D. every 170 minutes.19.A geyser isA. hot water and stream. B. cracks and fissures.C. hot rocks. D. great pressure.20.As depth increasesA. pressure increases but temperature does not.B. temperature increases but pressure does not.C. both pressure and temperature increase.D. neither pressure nor temperature increases.