组卷网 > 高中英语综合库 > 主题 > 人与社会 > 科普与现代技术 > 科普知识
题型:阅读理解-阅读单选 难度:0.65 引用次数:32 题号:10297463

Of all the components of a good night's sleep, dreams 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 switched 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(恒温器), regulating moods while the brain is ''off-line''. And one leading authority says that these intensely 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 this view. The brain is as active during REM (rapid eye movement) sleep-when most vivid dreams occur-as 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, while 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 Cartwright'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 emotional significance of the day's events-until, 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 would like it to end instead; the next time 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 sleeping of ''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 feelings. Sleep-or rather dream-on it and you'll feel better in the morning.

1. Researchers have come to believe that dreams__________.
A.reflect our innermost desires and fearsB.are a random outcome of neural repairs
C.can be modified in their coursesD.are vulnerable to emotional changes
2. By referring to the limbic system, the author intends to show __________.
A.its difference from the prefrontal cortexB.its function in our dreams
C.the mechanism of REM sleepD.the relation of dreams to emotions
3. The negative feelings generated during the day tend to __________.
A.emerge in dreams early at nightB.develop into happy dreams
C.worsen in our unconscious mindD.persist till the time we fall asleep
4. Cartwright seems to suggest that __________.
A.dreams should be left to their natural progression
B.dreaming may not entirely belong to the unconscious
C.visualizing bad dreams helps bring them under control
D.waking up in time is essential to the ridding of bad dreams

相似题推荐

阅读理解-阅读单选(约430词) | 适中 (0.65)
名校
文章大意:这是一篇说明文。越来越多的报告显示,持续不做梦会在很多方面损害我们醒着的时间。文章主要说明了不做梦会损害免疫和代谢系统,解释了背后的原因以及对此的建议。

【推荐1】Dreams, according to Carl Jung, reveal a certain amount of reality hidden during waking consciousness. In Jungian philosophy, the conflict and chaos experienced in dreams finally bring order to our lives. While Jung’s mystical theories are debatable, he was not mistaken about the importance of dreaming. A growing number of reports show that a continuous lack of dreaming is damaging our waking hours in many ways.

This trend is causing damage to our immune and metabolic (新陈代谢的) systems, let alone the electronic products that keep us up late at night are ruining our sleep patterns, which has long-term consequences on our memory system. One study showed that not allowing mice to have adequate amounts of REM (Rapid Eye Movement) sleep, the stage in which we dream, the mice couldn’t strengthen memories.

You might think this is just a sleep problem, but dreaming is inseparable from our night-time rest. We sleep in cycles, each lasting about 90 minutes; in a sleep cycle, we go through non-REM sleep before hitting REM. As the night progresses, REM sleep periods increase in length while deep sleep (one of the stages of non-REM sleep) decreases. The longer we sleep, the more time we spend in REM, which is why we are often dreaming when waking up in the morning. If we sleep less than seven hours, however, it becomes harder to achieve this level of REM.

The combination of sleeping and dreaming acts as an emotional stabiliser. We recover from emotional hurt faster when we sleep and dream properly. However, we’re not getting enough sleep to cycle through the stages to take advantage of this natural circadian anti-depressant (抗抑郁剂) — dreams. Instead, we get depressed and turn to alcohol or medicines to get to sleep, which only makes things worse because even one drink leads to late REM while anti-depressants promote deep sleep at the expense of REM.

We’re paying for this lack of dreaming in many ways. For example, a 2021 study stated that compared with quiet rest and non-REM sleep, REM promoted the formation of associative networks and the integration (整合) of unassociated information. Volunteers that experienced more REM sleep were better equipped for solving problems requiring creative solutions.

Rowan Hooper, the managing editor at New Scientist, writes that dreams that include an “emotional core” appear to be a main function of REM sleep and that we should look at sleep patterns as seriously as we do diet and exercise habits.

1. What’s Carl Jung’s view about dreams?
A.They cause chaos.B.They mirror reality.
C.They reveal secrets.D.They damage immunity.
2. What does “this trend” in Paragraph 2 refer to?
A.Insufficient sleep.B.A constant state of dreamlessness.
C.Addiction to electronic products.D.More research on sleep and dreams.
3. What can we learn about REM?
A.REM helps people fight depression.
B.REM can be improved by anti-depressants.
C.REM sleep occurs before non-REM sleep.
D.The brain receives new information during REM sleep.
4. What’s the main idea of the passage?
A.The importance of sleep lies in dreams.
B.The absence of dreams is harmful to human beings.
C.Dreaming patterns are more important than we realise.
D.Dreaming has mystical power of strengthening memories.
2023-04-26更新 | 367次组卷
阅读理解-阅读单选(约340词) | 适中 (0.65)

【推荐2】People who laugh frequently in their everyday life may be better equipped to deal with stressful events ——although this does not seem to apply to the intensity(强度)(strong, medium or weak ) of laughter . These are the findings reported by a research team from the University of Basel in the journal PLOS ONE.

It is suggested that people typically laugh 18 times a day. Researchers have also reported differences related to time of day, age, and sex--for example, women smile more than men on average. Now, researchers from the Department of Psychology at the University of Basel have recently conducted a study on the relationship between stressful events and laughter in terms of sensed stress in everyday life.

In the study, a sound signal from a mobile phone app required participants to answer questions eight times a day at irregular intervals(间隔) for a period of 14 days. The questions related to the frequency and intensity of laughter and the reason for laughing-as well as any stressful events or stress symptoms experienced-in the time since the last signal.

Using this method, the researchers were able to study the relationships between laughter, stressful events, and physical and psychological symptoms of stress ("I had a headache" or "I felt restless") as part of everyday life. The newly published analysis was based on data from 41 psychology students, 33 of whom were women, with an average age of just under 22.

The first result of the observational study was expected based on the specialist literature: in stages in which the subjects laughed frequently, stressful events were connected with lighter symptoms of stress. However, the second finding was unexpected. When it came to the interaction between stressful events and the intensity of laughter, there was no statistical correlation(关联)with stress symptoms."This could be because people are better at judging the frequency of their laughter, rather than its intensity, over the last few hours," says the research team.

1. What does Paragraph 2 intend to show?
A.The identity of the subjects.B.The purpose of the research.
C.The conclusion of the new study.D.The basic theory of the experiment.
2. What question was most probably asked in the study according to Paragraph 3?
A.Why did you choose to major in psychology?
B.Which event impressed you recently?
C.How do you find the given app?
D.What makes you laugh?
3. Which statement may the research team agree with?
A.Women are much friendlier than men.
B.Both of the results are beyond expectation.
C.The intensity of laughter is difficult to measure.
D.Stressful events are related to the subjects' occupations.
4. What can be the best title for this text?
A.Laughter acts as a stress reducer
B.People in their twenties laugh more
C.Psychology students feel restless more often
D.Symptoms of stress vary from person to person
2021-06-21更新 | 70次组卷
阅读理解-阅读单选(约350词) | 适中 (0.65)

【推荐3】During an interview for one of my books, my interviewer said something I still think about often. Annoyed by the level of distraction (干扰) in his open office, he said, “That’s why I have a membership at the coworking space across the street — so I can focus”. His comment struck me as strange. After all, coworking spaces also typically use an open office layout (布局). But I recently came across a study that shows why his approach works.

The researchers examined various levels of noise on participants as they completed tests of creative thinking. They were randomly divided into four groups and exposed to various noise levels in the background, from total silence to 50 decibels (分贝), 70 decibels, and 85 decibels. The differences between most of the groups were statistically insignificant; however, the participants in the 70 decibels group — those exposed to a level of noise similar to background chatter in a coffee shop — significantly outperformed the other groups. Since the effects were small, this may suggest that our creative thinking does not differ that much in response to total silence and 85 decibels of background noise.

But since the results at 70 decibels were significant, the study also suggests that the right level of background noise — not too loud and not total silence — may actually improve one’s creative thinking ability. The right level of background noise may interrupt our normal patterns of thinking just enough to allow our imaginations to wander, without making it impossible to focus. This kind of “distracted focus” appears to be the best state for working on creative tasks.

So why do so many of us hate our open offices? The problem may be that, in our offices, we can’t stop ourselves from getting drawn into others’ conversations while we’re trying to focus. Indeed, the researchers found that face-to-face interactions and conversations affect the creative process, and yet a coworking space or a coffee shop provides a certain level of noise while also providing freedom from interruptions.

1. Why does the interviewer prefer a coworking space?
A.It helps him concentrate.
B.It blocks out background noise.
C.It has a pleasant atmosphere.
D.It encourages face-to-face interactions.
2. Which level of background noise may promote creative thinking ability?
A.Total silence.
B.50 decibels
C.70 decibels.
D.85 decibels.
3. What makes an open office unwelcome to many people?
A.Personal privacy unprotected.
B.Limited working space.
C.Restrictions on group discussion.
D.Constant interruptions.
2024-04-01更新 | 12次组卷
共计 平均难度:一般