专业英语四级（阅读）-试卷150及答案解析.doc

1、专业英语四级（阅读）-试卷150及答案解析 (总分：30.00，做题时间：90分钟)一、READING COMPREHENSIO(总题数：11，分数：30.00)1.PART V READING COMPREHENSION_2.SECTION AIn this section there are several passages followed by ten multiple-choice questions. For each question, there are four suggested answers marked A, B, C and D. Choose the one th

2、at you think is the best answer._The international space station is getting a new, inflatable room that resembles a giant spare tire, NASA announced on Wednesday. Slated to launch in mid-2015, the Bigelow Expandable Activity Module, or BEAM, will fly to space deflated before being puffed into a 13-b

3、y-10-foot cylinder. Rather than providing new living space for astronauts, the module will test whether inflatable habitats have a future as orbiting laboratories, lunar outposts or living quarters for deep-space missions. And its arriving at a bargain price for space hardware. NASA is paying Bigelo

4、w Aerospace of Nevada $17.8 million for the module. This is a great way for NASA to utilize private-sector investment, and for pennies on the dollar to expand our understanding of this technology, said Lori Garver, the agencys deputy administrator. Station astronauts will periodically enter the BEAM

5、 to check whether its thick yet flexible walls, which include layers of Kevlar(凯芙拉，一种芳纶纤维), adequately block the twin hazards of space travel: radiation and micrometeoroids(微流星体)traveling faster than bullets. The plan is to have the hatch closed most of the time, with the crew going in and out a few

6、 times a year to collect data, Garver said. The module will stay attached to the station for two years. We have ambitions to go to the moon someday, have a base there, said Robert Bigelow, the real estate and hotel magnate who founded Bigelow Aerospace. Inflatables offer two advantages over traditio

7、nal aluminum-can-like modules. They weigh less per cubic foot of living space, making them cheaper to launch, and they can balloon to diameters far too wide to fit on current rockets. Bigelow licensed the concept from NASA in 1999 after the agency abandoned plans to use inflatable living quarters fo

8、r a mission to Mars, NASA is Bigelows first customer. On Wednesday, Bigelow said he and his wife have invested $250 million into developing inflatable space habitats. They hope to attract wealthy tourists, pharmaceutical companies and governments that want affordable space programs to an orbital out

9、post that Bigelow says will be ready to fly in 2016. Called Alpha, the private space station will offer living space for 12, twice the occupancy of the international space station. Renting one-sixth of Alpha for two months will cost $25 million, Bigelow said, transportation not included. Its unclear

10、 if a market exists for a private space station, said Scott Pace, director of the Space Policy Institute at George Washington University. Still, Bigelow has already tasted success. In 2006 and 2007, the company launched two small inflatable satellites atop Russian ballistic missiles. Both operated a

11、s planned. Wednesdays announcement marks a deepening of NASAs partnerships with commercial companies. The agency is also funding three companies developing craft to transport astronauts to and from orbitvehicles also needed to bring customers to Bigelows outposts. One of those companies, Space Explo

12、ration Technologies, or Space X, will fly the BEAM module to the space station in the trunk of one of its uncrewed Dragon capsules. It sounds like a good deal for both NASA and Bigelow, said Pace. Nothing can replace flight-test experience. The project may also stymie criticism that the 16-nation in

13、ternational space station, which took 13 years to construct, has been underutilized by NASA, said former station commanderMichael Lopez-Alegria, President of the Commercial Spaceflight Federation. Its a real step in the right direction.（分数：6.00）(1).According to the passage, BEAM is used as_.（分数：2.00

14、）A.a new living space for astronautsB.an orbiting laboratoryC.an outpost on the moonD.a test for inflatable habitats(2).All of the following statements are the advantages of inflatables EXCEPT that_.（分数：2.00）A.they are much lighter than traditional modulesB.they are less expensive to launchC.they ca

15、n expand to larger roomD.they can fit current rockets(3).What does the passage mainly talk about?（分数：2.00）A.NASA is cooperating with private companies.B.The international space station is getting a new inflatable module.C.NASA is launching a private space station.D.Bigelow is investing on inflatable

16、 space habitats.The year 2010 began with a herd of manufacturers chasing Amazons Kindle. It ends with some of the same companies in pursuit of Apples iPad. In between those tablet-computing crazes, weve all been challenged to keep up with the expanding universes of social networking and smartphones.

17、 Nothing illustrates what makes the tech business both fascinating and frustrating as well as the rise of Facebook. The social-networking site crossed the 500 million-user mark and debuted numerous features, such as an upgraded e-mail service and options to share your location with friends and get d

18、iscounts from nearby retailers. But it also spent much of the year infuriating(触怒)users with privacy changes that exposed more of their data and were confusing or impossible to undo. The simpler privacy interface it launched in May should help, but it wont if this company again forgets that its user

19、s dont all operate at start-up speeds. Other social networks had a smoother road. Twitter offered its growing user base a more reliable service and a busier but more useful interface, while Foursquare had users checking into such far-off locations as the international space station. You cant write t

20、he story of any of these sites without noting how smartphones have allowed their users to connect from so many places. Apples iPhone 4 led that pack in 2010, but Googles Android operating system improved at a faster pace and didnt require its users to sign up with only one carrier, even if some of t

21、he carriers selling Android phones showed a serious lack of taste in their tweaks(扭转)to Googles software. I probably devoted more column inches to smartphones than to any other sort of hardware, and with good reason; This is the most exciting, fastest-moving part of the electronics industry. Tablet

22、computers arent far behind, though. Apples launch of the iPad in January redefined this market in a way that finally made the concept relevant to home users. Competitors took the hint and have begun rolling out devices that will never qualify as iPad killers but do earn the title of iPad competitor.

23、 The success of the iPad and other tablets pushed down the price of the Kindle and other e-book readers. But Amazons e-reader may need to drop below $ 100 and get a major screen upgrade to hold its place in the market. Both smartphones and tablets have further eroded the significance of traditional

24、desktop and laptop computers. Sure, people still buy the things in massive numbers. But when you can get so much work and play done on a smartphone or tabletor, for that matter, any other device with a browser that can run Web-based applications like Google Docswhy bother stressing out over your cho

25、ice of one brand of computer? This trend has hurt Microsoft, the company that once benefited more than any other from the traditional computing market. Its biggest software shipment of the year, its Office 2010 productivity suite for its Windows operating system, was a yawner(无趣的东西)of a release.（分数：

26、6.00）(1).According to the passage, Facebook_.（分数：2.00）A.caused the fever of tablet-computingB.faces great threats from smartphonesC.enables you to find something on saleD.does nothing to protect users privacy(2).The phrase rolling out in Paragraph 5 probably means_.（分数：2.00）A.revealingB.producingC.q

27、uittingD.marketing(3).This passage is mainly talking about_.（分数：2.00）A.the fast expanding of social networking sitesB.the popularity of smartphones and social networksC.the development and advantages of tablet computersD.the fierce competition in the operating system industryWhen a doctor determines

28、 your risk for heart disease, he or she might look at your weight and blood pressure. But soon, they may also look at your neck. Independent of other factors, the width of your neck may play a role in determining your heart disease risk, according to researchers with the National Heart, Lung and Blo

29、od Institutes Framingham Heart Study, who presented their data Wednesday at a meeting of the American Heart Association in Orlando, Fla. Its very interesting that neck circumference was associated with(higher measures of)heart disease risk, said Dr. Vijay Nambi, a cardiologist at the Baylor College

30、of Medicine, who was not involved with the research. He noted that if the results of the preliminary research hold up after further study, it could provide a novel approach in determining a patients risk. We normally end up struggling with trying to find out what are the best measures of obesity and

31、 fat? said Nambi. Since this is the first presentation of the data, Sarah Rosner Preis, a postdoctoral fellow in NHLBI and the studys lead author, noted that the findings are preliminary. Her findings were that a wider neck was associated with riskier levels of other measurements for heart diseasesu

32、ch as higher systolic blood pressure and lower good HDL cholesterolbut not heart disease itself. Still, the connection could be an important one if the finding is borne out in future research. And if true, heart disease would join a list of other diseases linked to a thicker neck. To our knowledge,

33、there has been no study that has specifically examined the association between neck circumference and risk of heart disease, she said. Prior studies have suggested that neck circumference may be associated with diabetes, insulin resistance and hypertension. But even if a thicker neck turns out to be

34、 a sign of an at-risk heart, Nambi said, that might not mean that measuring your neck alone will ever be a conclusive test that lets a doctor determine heart disease risk. He noted that even now, there is some correlation between waist-to-hip ratio and obesity and heart disease, but cholesterol leve

35、l and blood pressure remain the measurements of choice in determining heart risk. The reason is that there are numeric goals for cholesterol and blood pressure, but there is not as simple a numeric target for weight loss. Similarly, he noted, more research would be needed to determine how the circum

36、ference of the neck affects heart disease risk in order for the measurement to become useful in the clinic. Ultimately, said Nambi, research is needed to determine whether the neck fat causes heart disease or if it is just a sign of risks caused by something else. And ultimately, obsessing about you

37、r collar size may not be the key to a healthy heart. When you lose weight from one source, youre going to lose fat all over your body, he said. Having a healthy lifestyle, several studies have shown thats the best you can do to improve your(heart health)profile.（分数：4.00）(1).According to Nambi, which

38、 of the following is CORRECT?（分数：2.00）A.A new way of determining heart disease has been proved.B.Its clear whats the most efficient way to check overweight.C.Just by measuring ones neck, a doctor will confirm heart disease.D.A healthy lifestyle will make a difference on your heart.(2).Which of the f

39、ollowing can best serve as the title of the passage?（分数：2.00）A.A Possible Approach to Checking Heart DiseaseB.The Risk of Heart DiseaseC.The Relation Between Weight and Blood PressureD.How to Improve Your Heart HealthIt is rare for a tale of academic mismanagement in a small institution to grab nati

40、onal attention. But Sciences-Po is no ordinary university. The four most recent French presidents, including Frangois Hollande, studied there. In the heart of the Parisian left bank, it attracts top-rated students and staff. And it has been without a head since its former director, Richard Descoings

41、, died suddenly in April in a New York hotel room. Now a report on Sciences-Po by the national auditor that talks of management failure and numerous violations has sparked furious debate. Critics have seized on managerial extravagance. Aggrieved students, whose tuition fees have risen sharply, have

42、denounced excessive pay. Others have called for board resignations. And the higher-education minister, Genevieve Fioraso, has rejected Sciences-Pos choice of successorHerve Cres, its deputy directorand imposed a caretaker. Sciences-Po is an odd creature. The state finances half its budget, but the s

43、chool is run by a private foundation and is thus unconstrained by rules about selection, fees and salary caps that bind other public universities. Between 2005 and 2010, the schools budget jumped by over 60% , the state subsidy rose by a third and Sciences-Po more than doubled its student intake, to

44、 3, 500. But, says the auditor, it added too many administrative staff, paid them and faculty members too much(Descoings earned 537, 247 or $711, 585 in 2010)and also took on risky debt. The mismanagement, admits one professor, was scandalous. Sciences-Po says it will clean things up and improve tra

45、nsparency. But the debate has broadened; should it return to its old role as a public-service feeder for the Ecole Nationale DAdministration(ENA), the top civil-service graduate school? Or should Sciences-Po continue with Descoingss project to turn it into an American-style university that competes

46、globally for students and researchers? For all his faults, Descoings boldly took on the French establishment. He built exchanges with American universities and lured foreign students to Paris. He recruited students from heavily immigrant suburbs. And he got the school to set up new research centers,

47、 such as an economics department. He did all this with a flexibility over recruitment that the French university establishment disliked. It is very difficult to attract the best and maintain a center of excellence without this autonomy, says another faculty member, fretful that it could now be compr

48、omised. The trouble is that in the conservative mind, the scandal of Sciences-Pos mismanagement has undermined its credibility. The old elite may now have a stronger hand against the international-minded inheritors of Descoings. Ms. Fioraso wants a new director to be chosen by January. The caretaker who must find one happens to be a former ENA classmate of Mr. Hollandes.（分数：4.00）(1).What is implied but NOT stated in the first paragraph is that_