1、考研英语（阅读）-试卷 25 及答案解析(总分：60.00，做题时间：90 分钟)一、Reading Comprehensio(总题数：6，分数：60.00)1.Section II Reading Comprehension（分数：10.00）_2.Part ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D.（分数：10.00）_Of all the components of a good night“s sleep, dream
2、s seem to be least within our control. In dreams, a window opens into a world where logic is suspended and dead people speak. A century ago, Freud formulated his revolutionary theory that dreams were the disguised shadows of our unconscious desires and fears; by the late 1970s, neurologists had swit
3、ched to thinking of them as just “mental noise“the random byproducts of the neural-repair work that goes on during sleep. Now researchers suspect that dreams are part of the mind“s emotional thermostat, regulating moods while the brain is “off-line.“ And one leading authority says that these intense
4、ly powerful mental events can be not only harnessed but actually brought under conscious control, to help us sleep and feel better, “It“s your dream,“ says Rosalind Cartwright, chair of psychology at Chicago“s Medical Center. “If you don“t like it, change it.“ Evidence from brain imaging supports th
5、is view. The brain is as active during REM (rapid eye movement) sleepwhen most vivid dreams occuras it is when fully awake, says Dr. Eric Nofzinger at the University of Pittsburgh. But not all parts of the brain are equally involved; the limbic system (the “emotional brain“) is especially active, wh
6、ile the prefrontal cortex (the center of intellect and reasoning) is relatively quiet. “We wake up from dreams happy or depressed, and those feelings can stay with us all day.“ says Stanford sleep researcher Dr. William Dement. The link between dreams and emotions shows up among the patients in Cart
7、wright“s clinic. Most people seem to have more bad dreams early in the night, progressing toward happier ones before awakening, suggesting that they are working through negative feelings generated during the day. Because our conscious mind is occupied with daily life we don“t always think about the
8、emotional significance of the day“s eventsuntil, it appears, we begin to dream. And this process need not be left to the unconscious. Cartwright believes one can exercise conscious control over recurring bad dreams. As soon as you awaken, identify what is upsetting about the dream. Visualize how you
9、 would like it to end instead; the next time it occurs, try to wake up just enough to control its course. With much practice people can learn to, literally, do it in their sleep. At the end of the day, there“s probably little reason to pay attention to our dreams at all unless they keep us from slee
10、ping or “we wake up in a panic,“ Cartwright says. Terrorism, economic uncertainties and general feelings of insecurity have increased people“ s anxiety. Those suffering from persistent nightmares should seek help from a therapist. For the rest of us, the brain has its ways of working through bad fee
11、lings. Sleepor rather dreamon it and you“ ll feel better in the morning.（分数：10.00）(1).Researchers have come to believe that dreams（分数：2.00）A.can be modified in their courses.B.are susceptible to emotional changes.C.reflect our innermost desires and fears.D.are a random outcome of neural repairs.(2).
12、By referring to the limbic system, the author intends to show（分数：2.00）A.its function in our dreams.B.the mechanism of REM sleep.C.the relation of dreams to emotions.D.its difference from the prefrontal cortex.(3).The negative feelings generated during the day tend to（分数：2.00）A.aggravate in our uncon
13、scious mind.B.develop into happy dreams.C.persist till the time we fall asleep.D.show up in dreams early at night.(4).Cartwright seems to suggest that（分数：2.00）A.waking up in time is essential to the ridding of bad dreams.B.visualizing bad dreams helps bring them under control.C.dreams should be left
14、 to their natural progression.D.dreaming may not entirely belong to the unconscious.(5).What advice might Cartwright give to those who sometimes have bad dreams?（分数：2.00）A.Lead your life as usual.B.Seek professional help.C.Exercise conscious control.D.Avoid anxiety in the daytime.To paraphrase 18th-
15、century statesman Edmund Burke, “all that is needed for the triumph of a misguided cause is that good people do nothing“. One such cause now seeks to end biomedical research because of the theory that animals have rights ruling out their use in research. Scientists need to respond forcefully to anim
16、al rights advocates, whose arguments are confusing the public and thereby threatening advances in health knowledge and care. Leaders of the animal rights movement target biomedical research because it depends on public funding, and few people understand the process of health care research. Hearing a
17、llegations of cruelty to animals in research settings, many are perplexed that anyone would deliberately harm an animal. For example, a grandmotherly woman staffing an animal rights booth at a recent street fair was distributing a brochure that encouraged readers not to use anything that comes from
18、or is tested in animalsno meat, no fur, no medicines. Asked if she opposed immunizations, she wanted to know if vaccines come from animal research. When assured that they do, she replied, “Then I would have to say yes.“ Asked what will happen when epidemics return, she said, “Don“t worry, scientists
19、 will find some way of using computers. “ Such well-meaning people just don“ t understand. Scientists must communicate their message to the public in a compassionate, understandable wayin human terms, not in the language of molecular biology. We need to make clear the connection between animal resea
20、rch and a grandmother“s hip replacement, a father“s bypass operation, a baby“s vaccinations, and even a pet“ s shots. To those who are unaware that animal research was needed to produce these treatments , as well as new treatments and vaccines, animal research seems wasteful at best and cruel at wor
21、st. Much can be done. Scientists could “adopt“ middle school classes and present their own research. They should be quick to respond to letters to the editor, lest animal rights misinformation go unchallenged and acquire a deceptive appearance of truth. Research institutions could be opened to tours
22、, to show that laboratory animals receive humane care. Finally, because the ultimate stakeholders are patients, the health research community should actively recruit to its cause not only well-known personalities such as Stephen Cooper, who has made courageous statements about the value of animal re
23、search, but all who receive medical treatment. If good people do nothing there is a real possibility that an uninformed citizenry will extinguish the precious embers of medical progress.（分数：10.00）(1).The author begins his article with Edmund Burke“ s words to（分数：2.00）A.call on scientists to take som
24、e actions.B.criticize the misguided cause of animal rights.C.warn of the doom of biomedical research.D.show the triumph of the animal rights movement.(2).Misled people tend to think that using an animal in research is（分数：2.00）A.cruel but natural.B.inhuman and unacceptable.C.inevitable but vicious.D.
25、pointless and wasteful.(3).The example of the grandmotherly woman is used to show the public“ s（分数：2.00）A.discontent with animal research.B.ignorance about medical science.C.indifference to epidemics.D.anxiety about animal rights.(4).The author believes that, in face of the challenge from animal rig
26、hts advocates, scientists should（分数：2.00）A.communicate more with the public.B.employ hi-tech means in research.C.feel no shame for their cause.D.strive to develop new cures.(5).From the text we learn that Stephen Cooper is（分数：2.00）A.a well-known humanist.B.a medical practitioner.C.an enthusiast in a
27、nimal rights.D.a supporter of animal research.Many are aware of the tremendous waste of energy in our environment, but fail to take advantage of straightforward opportunities to conserve that energy. For example, everyone knows that lights should be switched off when no one is in an office. Similarl
28、y, when employees are not using a meeting room, there is no need to regulate temperature. Fortunately, one need not rely on human intervention to conserve energy. With the help of smart sensing and network technology, energy conservation processes such as turning off lights and adjusting temperature
29、 can be readily automated. Ultimately, this technology will enable consumers and plant managers to better identify wasteful energy use and institute procedures that lead to smarter and more efficient homes, buildings and industrial plants. Until now, wires and cables for power and connectivity have
30、limited the widespread adoption of sensor networks by making them difficult and expensive to install and maintain. Battery-powered wireless networks can simplify installation and reduce cost. But their high power consumption and the corresponding need for regular battery replacement has made wireles
31、s networks difficult and costly to maintain. Nobody wants to replace hundreds or thousands of window sensor batteries in a large building on a regular basis. The promise of wireless sensor networks can only be fully realized when the wiring for both the data communication and the power supply is eli
32、minated. Doing so requires a true battery- free wireless solution, one that can utilize energy harvested directly from the environments. To facilitate the widespread deployment of wireless sensor networks, Greenpeak has developed an ultra-low-power communication technology that can utilize environme
33、ntal energy sources such as light, motion and vibration. This technology, employing on-board power management circuits and computer software to monitor energy harvesters and make the best use of harvested energy, enables sensors to operate reliably in a battery-free environment. Wireless sensor netw
34、orks deployed in our offices and homes will have an enormous impact on our daily lives, helping to build a smarter world in which energy is recycled and fully utilized. These wireless platforms, equipped with advanced sensing capability, will enable us to better control our lives, homes and environm
35、ent, creating a truly connected world that enables people worldwide to live in a more comfortable, safer, and cleaner environment.（分数：10.00）(1).By “human intervention“ (Para. 2), the author refers to（分数：2.00）A.the reduction of great energy waste in the environment.B.the grasping of straightforward o
36、pportunities available.C.acts like turning off lights when no one is in the room.D.the adoption of smart sensing and network technology.(2).Batteries are not an ideal energy source for sensor networks because they（分数：2.00）A.have to be replaced from time to time.B.contain metals that pollute the envi
37、ronment.C.require automatic recharging.D.are difficult and costly to maintain.(3).Battery-free wireless sensor networks are made possible by the fact that（分数：2.00）A.there is energy in the environment to be utilized.B.the cost of using them has been drastically reduced.C.modern data communication con
38、sumes little energy.D.their maintenance has been greatly simplified.(4).According to the passage, Greenpeak（分数：2.00）A.is the first company to install wireless sensor networks.B.promotes the application of wireless sensor networks.C.supplies batteries operating on harvested energy.D.benefits handsome
39、ly from communication technology.(5).Wireless sensor networks promise to（分数：2.00）A.bring businesses high profits.B.further develop the sensing technology.C.turn motion into a major source of energy.D.improve the daily lives of people worldwide.Crying is hardly an activity encouraged by society. Tear
40、s, whether they are of sorrow, anger, or joy, typically make Americans feel uncomfortable and embarrassed. The shedder of tears is likely to apologize, even when a devastating tragedy was the provocation. The observer of tears is likely to do everything possible to put an end to the emotional outpou
41、ring. But judging from recent studies of crying behavior, links between illness and crying and the chemical composition of tears, both those responses to tears are often inappropriate and may even be counterproductive . Humans are the only animals definitely known to shed emotional tears. Since evol
42、ution has given rise to few, if any, purposeless physiological responses, it is logical to assume that crying has one or more functions that enhance survival. Although some observers have suggested that crying is a way to elicit assistance from others (as a crying baby might from its mother), the sh
43、edding of tears is hardly necessary to get help. Vocal cries would have been quite enough, more likely than tears to gain attention. So, it appears, there must be something special about tears themselves. Indeed, the new studies suggest that emotional tears may play a direct role in alleviating stre
44、ss. University of Minnesota researchers who are studying the chemical composition of tears have recently isolated two important chemicals from emotional tears. Both chemicals are found only in tears that are shed in response to emotion. Tears shed because of exposure to cut onion would contain no su
45、ch substance. Researchers at several other institutions are investigating the usefulness of tears as a means of diagnosing human ills and monitoring drugs. At Tulane University“s Tear Analysis Laboratory Dr. Peter Kastl and his colleagues report that they can use tears to detect drug abuse and expos
46、ure to medication, to determine whether a contact lens fits properly of why it may be uncomfortable, to study the causes of “dry eye“ syndrome and the effects of eye surgery, and perhaps even to measure exposure to environmental pollutants. At Columbia University Dt. Liasy Faris and colleagues are s
47、tudying tears for clues to the diagnosis of diseases away from the eyes. Tears can be obtained painlessly without invading the body and only tiny amounts are needed to perform highly refined analyses.（分数：10.00）(1).It is known from the first paragraph that（分数：2.00）A.crying usually wins sympathy from
48、other people.B.crying may often imitate people or even result in tragedy.C.shedding tears gives unpleasant feelings to Americans.D.one who sheds tears in public will be blamed.(2).What does “both those responses to tears“ (Para. 1) refer to?（分数：2.00）A.Crying out of sorrow and shedding tears for happ
49、iness.B.The tear shedder“s apology and the observer“ s effort to stop the crying.C.The embarrassment and unpleasant sensation of the observers.D.Linking illness with crying and finding the chemical composition of tears.(3).“Counterproductive“ (Para. 1) very probably means（分数：2.00）A.having no effect at all.B.leading to tension.C.producing disastrous impact.D.harmful to health.(4).What does the author say about c
