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2017年职称英语考试综合类(A级)试题

[05-11 15:21:50] 来源：http://www.77xue.com 职称英语考试试题 阅读：8777次

概要：B in a newspaper than in a magazine．C in an independent newspaper than in a dependent newspaper．D in a magazine than in a local newspaper．38 According to the passage，which of the following statements is true?A A firm can control and time publicity accurately．B A firm can neither control nor time publicity accurately．C A firm can either control or time publicity accurately．D In most cases a firm can control and time publicity accurately．39 The

2017年职称英语考试综合类(A级)试题,标签：职称英语考试试题,职称英语考试答案,http://www.77xue.com

　　B in a newspaper than in a magazine．

　　C in an independent newspaper than in a dependent newspaper．

　　D in a magazine than in a local newspaper．

　　38 According to the passage，which of the following statements is true?

　　A A firm can control and time publicity accurately．

　　B A firm can neither control nor time publicity accurately．

　　C A firm can either control or time publicity accurately．

　　D In most cases a firm can control and time publicity accurately．

　　39 The example in Paragraph 4 is intended to demonstrate

　　A the power of publicity．

　　B the victim of publicity．

　　C the terrible effects of rumors．

　　D the vulnerability of people to publicity．

　　40 The passage implies that

　　A the placement of a story is not quite important．

　　B the report of a crime may not be true．

　　C local newspapers are not interested in company-sponsored programs.

　　D publicity is not always necessary．

　　第三篇 Effects of Environmental Pollution

　　If poilution continues to increase at the present rate，formation of aerosols(浮质)in the atmosphere will cause the onset(开始)of an ice age in about fifty years'time．This conclusion,reached by Dr S．I．Rasool and Dr S．H．Schneider of the United States Goddard Space Flight Centre，answers the apparently conflicting questions of whether an increase in the carbon dioxide (二氧化碳)content of the atmosphere will cause the Earth to warm up or increasing the aerosol content will cause it to cool down．The Ameficans have shown conclusively that the aerosol question is dominant．

　　Two spectres haunting conservationists have been the prospect that environmental pollution might 1ead to the planet's becoming unbearably hot or cold．One of these ghosts has now been 1aid．because it seems that even an increase in the amount of carbon dioxide in the atmosphere to eight times its present value will produce an increase in temperature of only 2℃.which would take place over several thousand years．But the other problem now looms larger than ever．

　　Aerosols are collections of small liquid or solid particles dispersed in air or some other medium．The particles are all so tiny that each is composed of only a few hundred atoms．Because of this they can float in the air for a very long time．Perhaps the most commonly experienced aerosol is industrial smog(烟雾)ofthe kind that plagued London in the 1950s and is an even greater problem in Los Angeles today．These collections of aerosols reflect the Sun's heat and thereby cause the Earth to cool．

　　Dr Rasool and Dr Schneider have calculated the exact effect of a dust aerosollayer just above the Earth's surface in the temperature of the planet．As the layer builds up．the present delicate balance between the amount of heat absorbed from the Sun and the amount radiated from the Earth is disturbed．The aerosol layer not only reflects much of the Sun's light but also

　　transmits the infrhred(红外线的)radiation from below．So，while the heat input to the surface drops．the loss of heat remains high until the planet cools to a new balanced state．

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