That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the 4Tirst-nighf, effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.
Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved.
The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participants slept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.
Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.
1.What do we learn about Dr. Yuka Sasaki doing her research?
A. She found birds and dolphins remain alert while asleep.
B. She found birds and dolphins sleep in much the same way.
C. She got some idea from previous studies on birds and dolphins
D. She conducted studies on birds’ and dolphins’ sleeping patterns.
2.What did Dr. Sasaki do when she first did her experiment?
A. She monitored the brain activity of participants sleeping in a new environment.
B. She recruited (招募) 35 participants from her Department of Psychological Sciences.
C. She studied the differences between the two sides of participants’ brains.
D. She tested her findings about birds and dolphins on human subjects.
3.What did Dr. Sasaki do when re-running her experiment?
A. She analyzed the negative effect of irregular tones on brains.
B. She recorded participants’ adaptation to changed environment.
C. She exposed her participants to two different stimuli (刺激物).
D. She compared the responses of different participants.
4.What did Dr. Sasaki find about the participants in her experiment?
A. They tended to enjoy certain tones more than others.
B. They tended to recognize irregular beeps as a threat.
C. They felt sleepy when exposed to regular beeps.
D. They differed in their tolerance of irregular tones
高三英语阅读理解困难题
That people often experience trouble sleeping in a different bed in unfamiliar surroundings is a phenomenon known as the 4Tirst-nighf, effect. If a person stays in the same room the following night they tend to sleep more soundly. Yuka Sasaki and her colleagues at Brown University set out to investigate the origins of this effect.
Dr. Sasaki knew the first-night effect probably has something to do with how humans evolved.
The puzzle was what benefit would be gained from it when performance might be affected the following day. She also knew from previous work conducted on birds and dolphins that these animals put half of their brains to sleep at a time so that they can rest while remaining alert enough to avoid predators (捕食者). This led her to wonder if people might be doing the same thing. To take a closer look, her team studied 35 healthy people as they slept in the unfamiliar environment of the university’s Department of Psychological Sciences. The participants each slept in the department for two nights and were carefully monitored with techniques that looked at the activity of their brains. Dr. Sasaki found, as expected, the participants slept less well on their first night than they did on their second, taking more than twice as long to fall asleep and sleeping less overall. During deep sleep, the participants’ brains behaved in a similar manner seen in birds and dolphins. On the first night only, the left hemispheres (半球) of their brains did not sleep nearly as deeply as their right hemispheres did.
Curious if the left hemispheres were indeed remaining awake to process information detected in the surrounding environment, Dr. Sasaki re-ran the experiment while presenting the sleeping participants with a mix of regularly timed beeps (蜂鸣声) of the same tone and irregular beeps of a different tone during the night. She worked out that, if the left hemisphere was staying alert to keep guard in a strange environment, then it would react to the irregular beeps by stirring people from sleep and would ignore the regularly timed ones. This is precisely what she found.
1.What do we learn about Dr. Yuka Sasaki doing her research?
A. She found birds and dolphins remain alert while asleep.
B. She found birds and dolphins sleep in much the same way.
C. She got some idea from previous studies on birds and dolphins
D. She conducted studies on birds’ and dolphins’ sleeping patterns.
2.What did Dr. Sasaki do when she first did her experiment?
A. She monitored the brain activity of participants sleeping in a new environment.
B. She recruited (招募) 35 participants from her Department of Psychological Sciences.
C. She studied the differences between the two sides of participants’ brains.
D. She tested her findings about birds and dolphins on human subjects.
3.What did Dr. Sasaki do when re-running her experiment?
A. She analyzed the negative effect of irregular tones on brains.
B. She recorded participants’ adaptation to changed environment.
C. She exposed her participants to two different stimuli (刺激物).
D. She compared the responses of different participants.
4.What did Dr. Sasaki find about the participants in her experiment?
A. They tended to enjoy certain tones more than others.
B. They tended to recognize irregular beeps as a threat.
C. They felt sleepy when exposed to regular beeps.
D. They differed in their tolerance of irregular tones
高三英语阅读理解困难题查看答案及解析
People generally believe that women are more emotional than men, but in my experience that often isn’t the ______.
A. case B. point C. view D. stage
高三英语单项填空中等难度题查看答案及解析
People generally believe that women are more emotional than men, but in my experience that often is not the______.
A. stage B. case C. view D. point
高三英语单项填空中等难度题查看答案及解析
People generally believe that women are more emotional than men, but in my experience that often isn’t the ______.
A. case B. point C. view D. stage
高三英语单项填空中等难度题查看答案及解析
Being a teenager can be tough. “Troubled” and “rebellious(叛逆的)” are often labels that people give kids in their teens. There are even scientific theories explaining that the likelihood of teenagers taking is due to the fact that their brains aren’t fully developed yet. 1.
But a new study by researches at the University of Pennsylvania and Cornell University may have finally cleared up this misunderstanding. 2.They simply are easily attracted by new things and are eager to explore the world.
The adolescents(青少年) lack experience. 3.This personality trait(特征)is called “sensation seeking”, which is shared by a lot of people and usually peaks during adolescence.
Instead of being something to worry about, sensation seeking is actually necessary, since the process of learning usually goes hand in hand with taking risks. "Teenagers need to build experience so that they can do a better job in making the difficult and risky decisions in later life. ‘Should I take this job? or ‘ 4.’ ”said Valerie Reyna, co –author of the study.
“5.If they don't make a mistake in their teenage years, they will have no life experience when they turn 18 and step out of their parents' protection and into a world that 's unknown to them. Kids need the freedom to test out boundaries while still in a safe environment,” wrote Ann Robinson, editor of The Guardian.
A. Should I marry this person?
B. It turns out that teenagers are fine
C. Adolescents should do as follows
D. What can parents do to help the kids?
E. There s something scarier than taking a risk.
F. in other words, they just can t help it.
G. Therefore, they keep trying things out for the first time in their life.
高三英语七选五中等难度题查看答案及解析
People often think that blue light before bedtime can make it harder to sleep. It’s true that the screens on phones, computers and televisions send out plenty of blue light. But if you’re focused on blue light as a major problem affecting your sleep or your eye health, it’s time to look at it from another aspect.
As Philip Yuhas, a professor of vision, writes at The Conversation, blue light isn’t a uniquely technological evil. It’s part of sunlight, and your eyes are exposed to plenty of it all the time. You’re fine. There are studies in mice that have found blue light can damage their eyes, but mice are nocturnal creatures (夜行动物) whose eyes are different from ours. The pigments (色素) and the lenses (晶状体) of our eyes actually block blue light fairly well—so in a sense, we already have built-in blue blocking protection.
Adding more protection isn’t likely to help, though. You can buy glasses and screen filters (滤光片) that block blue light, but Yuhas points out they are probably a waste of money. These products do not block out much blue light. The leading blue-blocking anti-reflective coating, for example, blocks only about 15% of the blue light that screens send out. You could get the same reduction just by holding your phone another inch from your face.
The American Academy of Ophthalmology doesn’t recommend blue-blocking products, either. Instead, if you’re concerned about your eye health or your ability to get to sleep on time, you already know what to do.
Put the screens away at bedtime. Read a book or find something else to do. While you’re using screens, take a 20-second break every 20 minutes to look at something 20 feet away (the “20-20-20” rule). If you get dry eyes when you look at screens for a long time, use eye drops labeled artificial tears.
1.What do people often think of blue light?
A.It is magical and rare. B.It is the most part of sunlight.
C.It is harmful to people’s skin. D.It is a factor affecting peoples sleep.
2.What did the studies in paragraph 2 find?
A.Mice can see clearly in the dark.
B.Blue light can damage mice’s eyes.
C.Human eyes actually absorb blue light well.
D.Human eyes need extra protection against blue light.
3.What can we know about blue-blocking products according to Yuhas?
A.They block a little blue light.
B.People should buy a better one.
C.They are thought highly of by experts.
D.Most can prevent plenty of harmful lights.
4.What could be the best title for the text?
A.What will Blue Light Affect Actually?
B.Are Blue Light Really from Screens?
C.Does Blue Light Affect People’s Health?
D.Why Does Blue Light Make Sleeping Hard?
高三英语阅读理解中等难度题查看答案及解析
People who have _______ flood often say that’s _______ .
A.experienced; terrifying experience |
B.experimented; terrifying experience |
C.experienced; a terrifying experience |
D.experimented; a terrifying experience |
高三英语单项填空中等难度题查看答案及解析
Our chemistry teacher announced that he would do the experiment in a different way
we might find interesting.
A.which B.in which C.in that D.whom
高三英语单项填空简单题查看答案及解析
Culture shock often comes as _____surprise to most people the first time they experience it in one form or ________..
A. /; other B. /; another C. a; another D. a; others
高三英语单项填空简单题查看答案及解析
She is a kindhearted woman and often has________mercy________people who are in trouble.
A.a;on | B./;on |
C.a;to | D./;to |
高三英语单项填空中等难度题查看答案及解析