题目内容
No one knows for certain why people dream, but some dreams misht be connected to the mental processes that help us learn. In a recent study, scientists found a connection between nap-time (午睡时间) dreams and better memory in people who were learning a new skill.
“I was astonished by this finding,” Robert Stickgold told Science News. He is a cognitive neuroscientist at Harvard Medical School who worked on the study of-how the brain and nervous system work, and cognitive studies look at how people learn and reason. So a cognitive neuroscientist may study the brain processes that help people learn.
In the study, 99 college students between the ages of 18 and 30 each spent an hour on a computer, trying to get through a virtual maze (虚拟迷宫). The maze was difficult, and the study participants had to start in a different place each time they tried - making it even more difficult. They were also told to find a particular picture of a tree and remember where it was.
For the first 90 minutes of a five-hour break, half of the particularity stayed awake and half were told to take a short nap. Participants who stayed awake were asked to describe their thoughts. Participants who took a nap were asked about their dreams before sleep and after steep - and they were awakened within a minute of sleep to describe their dreams.
About a dozen of the 50 people who slept said their dreams were connected to the maze. Some dreamed about the music that had been playing when they were working; others said they dreamed about seeing people in the maze. When these people tried the computer maze again, they were generally able to find the tree faster than before their naps. However, people who had other dreams, or people who didn't take a nap, didn't show the same improvement.
Stickgold suggests the dream itself doesn't help a person learn - it's the other way around.
1.It is a cognitive scientists job to study__ .
A．how people dream and learn
C．the structure of the nervous system
B．whether someone is reasonable
D．the process of understanding
2.The purpose of the study attended by 99 college students is to .
A．find the hidden tree in the maze
B．test the design of a difficult virtual maze
C．train people's memory
D．see how dreams and learning are connected
3.The better performance in working out the maze is connected with .
A．how people dream B．what people dream
C．when people dream D．where people dream
4.The writer will probably continue to talk about in the 6th paragraph.
A．how learning process caused the dream
B．how a dream helps a person learn
C．how dreams and learning influence each other
D．how to improve people's memory
1.D
2.D
3.B
4.A
【解析】略
口算题卡加应用题集训系列答案
综合自测系列答案Thinking
| Some scientists claim that we humans are the only living things that are conscious(有意识的)-we alone are aware that we are thinking. No one knows how consciousness works –it is one of science’s last great mysteries. All your thoughts take place in the cerebrum(大脑皮质),which is at the top of your brain, and different kinds of thought are linked to different areas, areas, called association areas. Each half of the cerebrum has four rounded ends called lobes(脑叶)-two at the front (frontal and temporal lobes)and two at the back (occipital and parietal lobes). The frontal lobe is linked to your personality and it is where you have your bright ideas. The temporal lobe is where you hear and understand what people say to you. The occipital lobe is where you work out what your eyes see. The parietal lobe is where you record touch, heat and cold, and pain. The left half of the brain controls the right side of the body. The right half controls the left side. One half of the brain is always dominant (in charge).Usually, the left brain is dominant, which is why 90% of people are right-handed. |
68.Which part of your cerebrum is most active when you are making a telephone call?
A. The frontal lobe. B. The temporal lobe. C. The occipital lobe. D. The parietal lobe.
69.Which of the following statements is true?
A. One’s personality has something to do with the frontal lobe.
B. Bright ideas come from the parietal lobe.
C. The occipital and temperal lobes are at the back of the cerebrum.
D. The occipital lobe is in charge of sound.
70.From the passage, we know the reason why around 10% of people are left-handed is that _______.
A.their frontal lobe is usually dominant B.their temporal lobe is usually dominant
C.their right brain is usually dominant D.their left brain is usually dominant
71 People use money to buy food, furniture, books, bicycles and hundreds of other things they need or want. When they work, they usually get paid in money.
Most of the money today is made of metal or paper. 72 One of the first kinds of money was shells.
Shells were not the only things used as money. In China, cloth and knives were used. In the Philippine Islands, rice was used as money for a long time. Elephant tusks, monkey tails and salt were used as money in parts of Africa.
The first metal coins were made in China. They were round and had a square hole in the centre. 73 Different countries have used different metals and designs for their money. 74 Sweden and Russia used copper (铜) to make their money. Later some countries began to make coins of gold and silver.
But even gold and silver were inconvenient if you had to buy something expensive. Again the Chinese thought of a way to improve money. 75 The first paper money looked more like a note from one person to another than the paper money used today.
Money has had an interesting history from the days of shell money until today.
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A．The first coins in England were made of tin (锡). |
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B．But people used to use all kinds of things as money. |
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C．No one knows for certain when people began to use money. |
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D．People strung (串连) them together and carried them from place to place. |
E. Money, as we know, is all made of paper.
F. They began to use paper money.
G. Today anyone will accept money in exchange for goods and services.