2021年职称英语考试《综合类》考试共65题，分为单选题。小编为您整理阅读理解分析5道练习题，附答案解析，供您备考练习。

1、Electric BackpackBackpacks are convenient. They can hold your books, your lunch, and a change of clothes, leaving your hands free to do other things. Someday, if you don\'t mind carrying a heavy load, your backpacks might also power your MP3 player, keep your cell phone running, and maybe even light your way home.Lawrence C. Rome and his colleagues from the University of Pennsylvania in Philadelphia and the Marine Biological Laboratory in Woods Hole, Mass, have invented a backpack that makes electricity from energy produced while its wearer walks. In military actions, search-and-rescue operations, and scientific field studies, people rely increasingly on cell phones, global positioning system (GPS) receivers, night-vision goggles, and other battery-powered devices to get around and do their work. The backpack\'s electricity-generating feature could dramatically reduce the amount of a wearer\'s load now devoted to spare batteries, report Rome and his colleagues in the Sept. 9, Science.The backpack\'s electricity-creating powers depend on springs used to hang a cloth pack from its metal frame. The frame sits against the wearer\'s back, and the whole pack moves up and down as the person walks. A gear mechanism converts vertical movements of the pack to rotary motions of an electrical generator, producing up to 7. 4 watts.Unexpectedly, tests showed that wearers of the new backpack alter their gaits in response to the pack\'s oscillations, so that they carry loads more comfortably and with less effort than they do ordinary backpacks. Because of that surprising advantage, Rome plans to commercialize both electric and non-electric versions of the backpack.The backpack could be especially useful for soldiers, scientists, mountaineers, and emergency workers who typically carry heavy backpacks. For the rest of us, power-generating backpacks could make it possible to walk, play video games, watch TV, and listen to music, all at the same time. Electricity-generating packs aren\'t on the market yet, but if you do get one eventually, just make sure to look both ways before crossing the street!According to Paragraph 4, what does Rome plan to do?【单选题】

A.To make the backpack more comfortable for the wearer.

B.To put the backpack on the market.

C.To test the advantage of the backpack.

D.To promote the backpack in a newspaper or on television.

正确答案:B

答案解析:第4段最后一句的意思是：Rome计划将这种背包商业化，即推向市场。A、C、D在文中均未提到。D的意思是为背包做广告。

2、A New Doctors\' DilemmaWhen Christian Barnard, a South African doctor, performed the first human heart transplant in1967, the result was a worldwide moral debate on the ethics of transplanting organs. Hearts were not the first human organs to be transplanted but, in this case, if a donor gave his or her heart, he or she would obviously and necessarily die (or be dead). Kidney transplants, which were already quite common in 1967, often involved the transfer of a single kidney from a close living relative. The chances of survival of the donor were somewhat diminished because he now had only one kidney and if that kidney were affected by disease, he would not have a healthy kidney in reserve. Nevertheless, the donor would certainly not necessarily die.Undoubtedly, another reason why the first heart transplant was so controversial was the fact that we associate so many personality traits with the heart. Questions were asked of the type: "If a person had a different heart, would he still be the same person?", or "If doctors needed a dying person\'s heart, would they tend to declare him dead prematurely?", and so on.Today, not only hearts and kidneys, but also such extremely delicate organs as lungs and livers, are transplanted. These developments have led to a far higher or proportion of successful operations and this, in turn, has led to greater demand for transplants. At the same time, many of the original moral questions surrounding heart transplants have been almost forgotten.However, as a result of the heavy demand for organs, a new moral dilemma has emerged. For example, in the United States there are many people who would survive iflungs were available for transplanting. In fact, about 80% of them die before a suitable donor is found. In these circumstances who would decide if a donor were found whose lungs were equally suitable for two potential recipients?This problem is made worse by the fact that many patients, or their families, become desperate to find a donor. Some succeed in publicizing their situation in newspapers, to politicians or on television. Sometimes, as a result, suitable donors are found. But what would happen if another patient needed the organ more than the one who got the publicity? Who would decide if the other patient should get the organ? Would it be the doctors? Or the donor? Or the family who got the publicity? If such a dilemma developed it would be very difficult to resolve and it would be a matter of life or death to the patients involved.What organs have been transplanted since 1967?【单选题】

A.Kidneys only.

B.Kidneys and hearts.

C.Not only kidneys and hearts but lungs and livers.

D.More than the organs mentioned above.

正确答案:D

答案解析:由第3段可知不仅仅是心脏、肾脏还有肺、肝都进行过移植，因此选D。

3、Human Space ExplorationWhile scientists are searching the cause of the Columbia disaster, NASA is moving ahead with plans to develop a new craft that would replace shuttles(航天飞机) on space station missions by2012 and respond quickly to space station emergencies.The space agency released the first set of mission needs and requirements several days ago for me orbital space plane (轨道航天飞机), which would be designed to transport a crew of four to and from the International Space Station.Although it includes few specifics, the plan states the orbiter(轨道航天飞机) will be safer cheaper and require less preparation time than the shuttle. It would be able to transport four crew members by 2012 though it would be available for rescue missions by 2010. NASA says the craft should be able to transport injured or ill space station crew members to "definitive(决定性的) medical care" within 24 hours.The release of the requirements showed NASA remains focused on the long-term priorities of space exploration, even as questions exist concerning the loss of Columbia and its seven member crew on February l, 2003.Expels at Marshall Space Flight Center in Huntsville, Alabama, have been working for years on a successor to the shuttle. The project, known as the Space Launch Initiative (倡议), was divided last year into two parts----one focusing on a future launch vehicle, the other on a space station orbiter. The orbiter is expected to be ready sooner.The program\'s managers say NASA officials have told them not to alter Space Launch Initiative in light of the Columbia disaster.U. S. President George W. Bush asked Congress for about US$1 billion for Space Launch Initiative in 2004, funds that would be almost equally split between the Orbital Space Plane and Next Generation Launch Technology.According to the passage, the l billion funds, if granted, would .【单选题】

A.be used to rebuild the International Space Station

B.be awarded to the scientists working at NASA

C.be shared by the two projects under the Space Launch Initiative

D.be spent on the investigation of the Columbia disaster

正确答案:C

答案解析:此题问的是10亿美元的款项被批准后用来干什么？选项A的意思是重建国际空间站，选项B的意思是颁发给在NASA工作的科学家，这两个选项都与原文意思不符。最后一段说，若10亿美元的款项获得国会的批准，这笔款项基本上平分给the Orbital Space Plane和Next Generation Launch Technology这两个研究项目，故C为正确答案。

4、The Beginning of American LiteratureAmerican has always been a land of beginnings. After Europeans "discovered" America in the fifteenth century, the mysterious New World became for many people a genuine hope of a new life, an escape from poverty and persecution, a chance to start again. We can say that, as nation, America begins with that hope. When, however, does American literature begin?American literature begins with American experiences. Long before the first colonists arrived, before Christopher Columbus, before the Northmen who "found" America about the year 1,000, Native Americans lived here. Each tribe\'s literature was tightly woven into the fabric of daily life and reflected the unmistakably American experience of lining with the land. Another kind of experience, one filled with fear and excitement, found its expression in the reports that Columbus and other explorers sent home in Spain, French and English. In addition, the journals of the people who lived and died in the New England wilderness tell unforgettable tales of hard and sometimes heartbreaking experiences of those early years.Experience, then, is the key to early American literature. The New World provided a great variety of experiences, and these experiences demanded a wide variety of expressions by an even wider variety of early American writers. These writers included John Smith, who spent only two-and-a-half years on the American continent. They included Jonathan Edwards and William Byrd, who thought of themselves as British subjects, never suspecting a revolution that would create a United States of America with a literature of its own. American Indians, explorers, Puritan ministers, frontier wives, plantation owner-they are all the creators of the first American literature.What can we learn from the literature of the tribes of the native Americans?【单选题】

A.About the everyday life of the native Americans.

B.About the arrival of Columbus.

C.About the experience of the first European settlers.

D.About the experience of those who died in the New England wilderness.

正确答案:A

答案解析:答案在第2段的第3句，从美洲土著部落的文学中，我们可以找到他们日常生活的写照。

5、U. S. to Start $3. 2 Billion Child Health Study in JanuaryA study that will cost $3. 2 billion and last more than two decades to track the health of100,000 U. S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday.Officials from the U. S. government\'s National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness.The study will examine hereditary and environmental factors such as exposure to certain chemicals that affect health.Researchers will collect genetic and biological samples from people in the study as well as samples from the homes of the women and their babies including air, water, dust and materials used to construct their residences, the NIH said.Officials said more than $200 million has been spent already and the study is projected to cost$3. 2 billion."We anticipate that in the long term , what we learn from the study will result in a significant savings in the nation\'s health care costs," Dr. Duane Alexander, who heads the NIH\'s Eunice Kennedy Shriver National Institute of Child Health and Human Development, told reporters.The study will begin in January when the University of North Carolina and the Mount Sinai School of Medicine in New York start signing up pregnant women whose babies will then be followed to age 21.Some of the early findings will be about factors behind pre-term birth, which has become more common in recent years, according to Dr. Peter Scheid of the NIH, who heads the study.The people taking part will be from rural, urban and suburban areas, from all income and educational levels and from all racial groups, the NIH said.Which is NOT true of the people in the study?【单选题】

A.They\'ll be from various areas.

B.They’ll be from all income levels.

C.They\'ll be from all educational levels.

D.They\'ll be from all age groups.

正确答案:D

答案解析:前3项在短文的最后一段都有提及，只有第4项是错误的，因为研究对象都是怀孕的妇女，不可能是所有年龄段的人们。