20xx年英語試題---安徽省應(yīng)用型本科高校面向中職畢業(yè)生(完整版)
【正文】 humans, need it to stay alive. Nitrogen and oxygen are the two main gases in the air. About onefifth of the air you breathe is oxygen. Air also contains tiny amounts of a gas called carbon dioxide. Animals take in the oxygen from the air and breathe out a waste gas carbon dioxide. Plants do the opposite. They take in carbon dioxide from the air and turn it into oxygen. The oxygen is given off through their leaves.When the wind blows it is really air on the move. If you stand outside on a windy day you can feel this flowing air as it rushes past you.46. Which of the following is right according to this passage? A. Air is a mixture of gases. B. You can’t see the air but you can smell it. C. Oxygen is air, and air is oxygen. D. Air contains only nitrogen and oxygen.47. What does the italicized(斜體的) word “it” refer to in the third line? A. All animals. B. Human beings. C. Air. D. Oxygen.48. can give off oxygen. A. Human beings B. Animals C. Pandas D. Plants 49. What’s the Chinese meaning of “carbon dioxide”? . A. 一氧化碳 B. 碳元素 C. 二氧化碳 D. 氧氣50. Which of the following about wind is right according to this passage? A. We can’t feel the wind. B. You can feel the flowing air. C. The wind is moving from the sky. D. Wind has nothing to do with air.Passage 4A study suggests that dirty air can reduce lung development. Researchers at the University of Southern California in Los Angeles published their work in a magazine. About 1,700 children from different munities in Southern California took part in the study. The scientists tested the children every year for eight years, starting at age ten. They say this is the longest study ever done on air pollution and the health of children.The scientists found that children who lived in areas with the dirtiest air were five times more likely to grow up with weak lungs. Many were using less than eighty percent of normal lung strength to breathe.The damage from dirty air was as bad as that found in children with parents who smoke. Children with reduced lung power may suffer more severe(嚴重的) effects from a mon cold, for example.But the researchers express greater concerns about longterm effects. They say adults normally begin to lose one percent of their lung power each year after age twenty. The doctors note that weak lung activity is the second leading cause of early deaths among adults. The first is smoking.51. Who found out the dirty air could reduce lung development
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