2017理工类职称英语练习
30. In a binary plant, the heat of the geothermal water can be convertedinto__F____.
A. hot springs
B. impermeable rock
C. little or no water
D. turbine operator
E. one or two separators
F. the energy to turn a turbine
参考答案：EFCBBCEF
阅读理解
第一篇Sports Star Yao Ming
IfYao Ming is not the biggest sports star in the world, he almost certainly the tallest.At 2.26m, he is the tallest player in the National Basketball Association (NBA)and holds the record as the most towering Olympian ever to competein the Game.
Butwhat really stands out about the giant center is his celebrity (名气). Few, if any, Chinese athletes are as well-known asYao Ming around the world. People across the globe are fascinated with Yao, notonly for his basketball prowess(接杰出的才能)but also for being a symbol of international commerce.
WhenYao joined the Houston Rockets as the No. 1 pick in the 2002 NBA draft he wasthe first international player ever to be selected first. His assets on thecourt are clear enough 一 no NBA player of his size has ever possessed his mobility, so he is ahandful (难对付的人)foropponents on either end of the court. But what makes Yao invaluable to theRockets organization is his role as a global citizen and as a bridge tomillions of potential basket ball fans in China.
Whenit was announced in February that Yao would miss the rest of the NBA season andpossibly the Olympics with a stress fracture (骨折)in his left foot, a collective shudder spread across China. After considerabledebate and discussion, Yao opted to get his foot surgically treated in anoperation that placed several tiny screws across the bone, to offer hisoverburdened foot more support. The surgery was a success, and though theestimated four-month recovery period will leave him little time to prepare withTeam China. Yao has vowed to be ready for the Beijing Olympics.
Yaowrapped up a 10-day trip to China, where he underwent a series of traditional Chinesemedicine (TCM) treatments, hoping to accelerate his recovery process.Westernexperts are generally skeptical of TCM’s benefits, although new research from the University of Rochestersuggests that a certain compound derived from shellfish may indeed stimulatebone repair.
“Thereis no reason to dismiss TCM, “Yao told a press conference in Beijing. “It’s been used in our countryfor thousands of years. I don’t think that it’sshort on science.”
36. The word“towering”inParagraph 1 means
A. large.
B. fat.
C. tall.
D. great.
37. Opponents find it very difficult to controlYao Ming because of his
A. assault.
B. mobility.
C. defense.
D. celebrity.
38. Yao Ming had to undergo a series of TCMtreatments because
A. he wanted to make a more rapid recovery.
B. his right foot had been hurting.
C. the surgical operation had been a failure.
D. he couldn't afford all the medicalexpenses.
39. Which statement about Yao Ming is NOT true?
A. He is an NBA player.
B. He fractured his left foot.
C. Hemissed the Athens Olympics.
D. He is an international figure.
40. In general, the Western experts' attitudetowards TCM is
A. indifferent.
B. positive.
C. doubtful.
D. negative.
参考答案：CBACC
第二篇 Deforestation and Desertification(沙漠化)
TheSahel zone lies between the Saharadesert and the fertile savannahs(热带大草原)ofnorthern Nigeria and South Sudan. The word sahel comes from Arabic and means marginal or transitional ,andthis is a good description of thesesemi-arid(半干旱)lands,whichoccupy much of the Western African countries of Mail,Mauritania,Niger,and Chad.
Unfortunately, over the last century theSahara desert has steadily crept southwards eating into once productive Sahellands. United Nations surveys show that over 70 percent of the dry land inagriculture use in Africa has deterioratedover the last 30 years. Droughts have become more severe, the most recentlasting over twenty years in parts of the Sahel region. The same process ofdesertification is taking place across southern Africa as the Kalahari desertadvances into Botswana and parts of South Africa.
One ofthe major causes of this desert advance ispoor agricultural land use, driven by the pressures of increasing population.Overgrazing一 keeping too many farm animals on the land一means that grasses and other plants cannot recover, and scarce water suppliesare exhausted. Overcultivation一 tryingto grow too many crops on poor land一 resultsin the soil becoming even less fertile and drier, and beginning to break up. Soilerosion (侵蚀) follows, and the land turns into desert.
Another cause of desertification is loss of tree cover. Trees are cutdown for use as fuel and to clear land for agricultural use. Tree roots help tobind the soil together, to conserve moisture, and to provide a habitat forother plants and animals. When trees are cut down, the soil begins to dry andloosen, wind and rain erosion increase, other plant species die, and eventuallythe fertile top soil may be almost entirely lost, leaving only bare rock anddust.
The effects of loss of topsoil and increased drought are irreversible. Theyare,however, preventable. Careful conservation of tree cover and sustainableagricultural land use have been shown to halt deterioration of soils and lessenthe effects of shortage of rainfall. One project in Kita in south-west Malifunded by UNDP has involved local communities in sustainable management offorest,while at the same time providing a viable(有活力的)agriculturaleconomy. This may be a model for similar projects in otherWest African countries.
35 order to prevent desertification,the author proposes ___.
A. making good use of international aids
B. developing a sustainableagricultural economy
C. gaining international support
D. converting agricultural land intoforest
答案：b
36.The Sahel zone is an area which ___.
A. is covered with sad and grass
B. has a long history
C. occupies much of South Nigeria
D. belongs to Sudan
答案：a
37. What is the situation about thedesertification in Africa?
A. The deserts are replaced withgrasslands
B. The deserts are expanding
C. the deserts are moving northwards
D. the deserts are being deserted
答案：b
38. The word “deteriorated ” in paragraph2 means ___.
A. deepened
B. suffered
C. slipped
D. worsened
答案：d
39. What is the root causeof desertification?
A. poor farming
B. overpopulation
C. radical climate change
D. disappearance of rare plant species
答案：a
40. In order to prevent desertification,the author proposes ___.
A. making good use of international aids
B. developing a sustainableagricultural economy
C. gaining international support
D. converting agricultural land intoforest
答案：b
第三篇
OlderVolcanic Eruptions
Volcanoes were more destructive in ancient history, not because theywere bigger，but because the carbon dioxide(二氧化碳)theyreleased wiped out life with greater ease.
Paul Wignall from the University of Leeds was investigating the linkbetween volcanic eruptions and mass extinctions. Not all volcanic eruptionskilled off large numbers of animals, but all the mass extinctions over the past300 million years coincided with huge formations of volcanic rock. To hissurprise, the older the massive volcanic eruptions were, the more damage theyseemed to do. He calculated the "killing efficiency" for thesevolcanoes by comparing the proportion of life they killed off with the volumeof lava (熔岩) that they produced. He found that sizefor size, older eruptions were at least 10 times as effective at wiping outlife as their more recent rivals