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Man still has a lot to learn about the most powerful and complex part of his body— the brain. In ancient times men did not t
Man still has a lot to learn about the most powerful and complex part of his body— the brain. In ancient times men did not t
admin
2015-01-31
13
问题
Man still has a lot to learn about the most powerful and complex part of his body— the brain.
In ancient times men did not think that the brain was the center of mental activity. Aristotle, the philosopher of ancient Greece, thought that the mind was based in the heart. It was not until the 18th century that man realized that the whole of the brain was involved in the workings of the mind.
During the 19th century scientists found that when certain parts of the brain were damaged, men lost the ability to do certain things. And so, people thought that each part of the brain controlled a different activity. But modern research has found that this is not so. It is not easy to say exactly what each part of the brain does.
In the past 50 years there has been a great increase in the amount of research being done on the brain. Chemists and biologists have found that the way the brain works is far more complicated than they had thought. In fact many people believe that we are only now really starting to learn the truth about how the human brain works. The more scientists find out, the more questions they are unable to answer. For instance, chemists have found that over 100,000 chemical reactions take place in the brain every second. Mathematicians who have tried to use computers to copy the way the brain works have found that even using the latest electronic equipment they would have to build a computer which weighed over 10,000 kilos. Some recent research also suggests that we remember everything that happens to us. We may not be able to recall this information, but it is all stored in our brains.
Scientists hope that if we can discover how the brain works, the better use we will be able to put it to. For example, how do we learn language? Some children learn to speak, read and write when they are very young compared to average children. But scientists are not sure why this happens. They are trying to find out whether there is something about the way we teach language to children which in fact prevents children from learning sooner.
What does the author mention in the history of the brain study?
选项
A、Ancient people thought the brain was much more important than the heart.
B、Scientists in 19th century believe that all parts of the brain work together to control one activity.
C、Aristotle thought that our heart is the controlling center of the activity.
D、People gradually noticed the importance of the brain over time.
答案
D
解析
细节题。本题的定位点在文章的第二段和第三段。根据“the mind wasbased in the heart”,可见那时人们认为脑子的工作是基于心的,故A错误。而文章只说了心脏和脑子的关系,并没有说心脏是人类行为的控制中心,故C排除。又根据19世纪的认知。“people thought that each part of the brain controlled a difrerentactivity”,即不同的大脑部位控制不同的行为,可知B,大脑各部分合作控制行为错误。故选D。
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0
大学英语四级
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