职称英语概括大意与完成句子真题训练

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职称英语概括大意与完成句子真题训练

　　沉湎于希望的人和守株待兔的樵夫没有什么两样。以下是小编为大家搜索整理的职称英语概括大意与完成句子真题训练，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!

职称英语概括大意与完成句子真题训练

　　职称英语概括大意与完成句子真题训练 1

　　第3部分：概括大意与完成句子

　　Geothermal(地热) Energy

　　1 Since heat naturally moves from hotter regionsto cooler ones, the heat from the earths center flows outwards towards thesurface. In this way. it transfers to the next layer of rock. If thetemperature is high enough, some of this rock melts and forms magma (岩浆). The magma ascends in its turn towards theearths surface. It often remains wen below the earth s surface, creating vastareas of hot rock. In such regions, there are deep cracks, which allowrainwater to descend underground. Some of the heated rainwater travels back upto the earths surface where it will appear as a hot spring. However, ifthis ascending hot water reaches a layer of impermeable (不可渗透的)rock, it remains trapped, forming a geothermal reservoir. If geothermal reservoirs are closeenough to the surface, they can be reached by drilling wells. Hot water andsteam shoot up the wells naturally, and can be used to produce electricity ingeothermal power plants.

　　2 A few geothermal power plants depend ondry-steam reservoirs which produce steam but little or no water. In thesecases, the steam is piped up directly to provide the power to spin a turbinegenerator. The first geothermal power plant, constructed at Lardarello inItaly, was of this type, and is still producing electricity today.

　　3 Most currently operating geothermal powerplants are either "flash" steam plants or binary (双重的) plants. Flash plants produce mainly hotwater ranging in temperature from 300℃ to 700℃ Fahrenheit. This water is passed through one or two separatorswhere released from the pressure of the underground reservoir, itHashes" or boils into steam Again, the force of this steam provides theenergy to spin the turbine and produce electricity. The geothermal water andsteam are then reinjected directly back down into the earth to maintain the volumeand pressure of the reservoir. Gradually they will be reheated and can then beused again.

　　4 A reservoir with temperatures below 300℃ Fahrenheit is not hot enough to flash seam but it can still be used togenerate electricity in a binary fluid. The steam from this(参照图片) isused to power the turbines. As in the flash steam plant, the geothermal water is recycled backinto the reservoir.

　　23.Paragraph 1_____C____

　　24.Paragraph 2____A_____

　　25.Paragraph 3____E_____

　　26.Paragraph 4____B_____

　　A. Dry steam plants

　　B. Binary plants

　　C. Origin of geothermal energy

　　D. Generation of electricity

　　E. Flash steam plants

　　F. Recyclable water and steam

　　27. A geothermal reservoir is formed when hotwater is trapped under__B____.

　　28. A dry-steam reservoir produces steam with___D___.

　　29. Flash plants produce hot water through___C___.

　　30. In a binary plant, the heat of the geothermalwater can be converted into__A____.

　　A. the energy to turn a turbine

　　B. impermeable rock

　　C. one or two separators

　　D. turbine operator

　　E. little or no water

　　F. hot springs

　　职称英语概括大意与完成句子真题训练 2

　　Exercise is one of the few factors with a positive role in long-term maintenance of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to “light”beer and low-calorie bread than increase physical exertion. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to shed pounds said they were combining exercise with their diet.

　　In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts:for example, one would have to briskly walk three miles just to work off the 275 calories in one delicious Danish pastry (小甜饼). Even exercise professionals concede half a point here. “Exercise by itself is a very tough way to lose weight, ”says York Onnen, program director of the President‘s Council on Physical Fitness and Sports.

　　Still, exercise‘s supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight.

　　If you have been sedentary (极少活动的)and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year‘s time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.

　　26.What is said about the average American in the passage?

　　A) They tend to exaggerate the healthful effect of “light”beer.

　　B) They usually ignore the effect of exercise on losing weight.

　　C) They prefer “light”beer and low-calorie bread to other drinks and food.

　　D) They know the factors that play a positive role in keeping down body weight.

　　27.Some people dislike exercise because ________.

　　A) they think it is physically exhausting

　　B) they find it hard to exercise while on a diet

　　C) they don‘t think it possible to walk 3 miles every day

　　D) they find consulting caloric-expenditure charts troublesome

　　28.“Even exercise professionals concede half a point here”(Line 3, Para. 2)means “They ________”.

　　A) agree that the calories in a small piece of pastry can be difficult to work off by exercise

　　B) partially believe diet plays a supporting role in weight reduction

　　C) are not fully convinced that dieting can help maintain one‘s new weight

　　D) are not sufficiently informed of the positive role of exercise in losing weight

　　29.What was confirmed by the Boston University Medical Center‘s study?

　　A) Controlling one‘s calorie intake is more important than doing exercise.

　　B) Even occasional exercise can help reduce weight.

　　C) Weight reduction is impossible without exercise.

　　D) One could lose ten pounds in a year‘s time if there‘s no increase in food intake.

　　30.What is the author‘s purpose in writing this article?

　　A) To justify the study of the Boston University Medical Center.

　　B) To stress the importance of maintaining proper weight.

　　C) To support the statement made by York Onnen.

　　D) To show the most effective way to lose weight.

　　职称英语概括大意与完成句子真题训练 3

　　Lead deposits, which accumulated in soil and snow during the 1960‘s and 70‘s, were primarily the result of leaded gasoline emissions originating in the United States. In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.

　　A study published recently in the journal Nature shows that air-borne leaded gas emissions from the United States were the leading contributor to the high concentration of lead in the snow in Greenland. The new study is a result of the continued research led by Dr. Charles Boutron, an expert on the impact of heavy metals on the environment at the National Center for Scientific Research in France. A study by Dr. Boutron published in 1991 showed that lead levels in arctic (北极的)snow were declining.

　　In his new study, Dr. Boutron found the ratios of the different forms of lead in the leaded gasoline used in the United States were different from the ratios of European, Asian and Canadian gasolines and thus enabled scientists to differentiate (区分)the lead sources. The dominant lead ratio found in Greenland snow matched that found in gasoline from the United States.

　　In a study published in the journal Ambio, scientists found that lead levels in soil in the Northeastern United States had decreased markedly since the introduction of unleaded gasoline.

　　Many scientists had believed that the lead would stay in soil and snow for a longer period.

　　The authors of the Ambio study examined samples of the upper layers of soil taken from the same sites of 30 forest floors in New England, New York and Pennsylvania in 1980 and in 1990 The forest environment processed and redistributed the lead faster than the scientists had expected.

　　Scientists say both studies demonstrate that certain parts of the ecosystem (生态系统)respond rapidly to reductions in atmospheric pollution, but that these findings should not be used as a license to pollute.

　　21.The study published in the journal Nature indicates that ________.

　　A) the Clean Air Act has not produced the desired results

　　B) lead deposits in arctic snow are on the increase

　　C) lead will stay in soil and snow longer than expected

　　D) the US is the major source of lead pollution in arctic snow

　　22.Lead accumulation worldwide decreased significantly after the use of unleaded gas in the US ________.

　　A) was discouraged

　　B) was enforced by law

　　C) was prohibited by law

　　D) was introduced

　　23.How did scientists discover the source of lead pollution in Greenland?

　　A) By analyzing the data published in journals like Nature and Ambio.