英语翻译During the 19th century,scientists found that when certa

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英语翻译
During the 19th century,scientists found that when certain parts of the brain of a person were hurt,he would lose the power of doing certain things.And so people thought that each part of the brain does a different job.But modern researches discovered that this is not so,for it is not easy to show exactly what each part of the brain does.
In the past fifty years there has been a great increase in the amount of research done on the brain.
Scientists have found out the way the brain works is not so simple as people in general may think.
Chemists tell us that about 100000 chemical changes take place in the brain every second.
Some recent researches also suggest that we can remember everything in the store-house of the human mind.
Earlier scientists thought that the power of one’s brain got weaker and weaker as one grew older.
But it is now thought that that is not true.
As long as the brain is given plenty of exercise,it keeps its power.
It has been proved that an old person who has always been active in the mind has a quicker mind than a young person who has only done physical work without using much of his brain.

十九世纪,科学家们发现当人大脑的某一部位受到损伤时,人会丧失做某些特定事情的能力.因此,人们认为大脑的不同部分有着不同的分工.但是最新的研究表明事实并非如此,因为要准确说明大脑的每一部分分别负责什么工作是非常困难的.
在过去的五十年间,有关大脑方面的研究工作增加了很多.科学家们已经发现,大脑工作的方式并不象人们普遍所想的那样简单.
化学家告诉我们大脑每秒钟大约发生十万种化学变化.一些最新的研究也认为,我们能够在大脑中将所接触到的任何事情存储起来.
以前的科学家认为随着年龄的增长,人的大脑的功能会不断弱化.但是现在的观点并不这么认为.只要大脑保持足够的锻炼,其功能不会弱化.
事实已经证明,一个思维一直活跃的老年人比一个不用大脑只做体力活动的年轻人拥有更迅捷的思维.

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