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  3. Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great A

Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great A

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问题     Many psychologists in the early twentieth century believed that humans use only 10 percent of their brains, and even the great Albert Einstein once wrote that most people use only a small portion of the grey matter between their ears. It’s a theory that has often been put forward in television documentaries, magazines, advertisements and books over the past century.
    But nearly all scientists now agree the 10 percent theory is completely unfounded. In fact, they question how this figure was ever arrived at in the first place and what areas of the brain are supposed to be unneeded. The theory supposes that if 90 percent of the brain were removed, a person would still be able to function normally, while in reality it is known that damage to even a small area of the brain can result in extremely serious physical injuries and that many areas of the brain are used at the same time for some complex activities or thought processes.
    Throughout the course of one day, most areas of the brain are active at some time, even during sleep. The 10 percent theory suggests that certain areas of the brain are not used, but scans slow activities throughout the entire brain and not in any separate part. The final argument against the 10 percent theory is the fact that doctors carefully map the brain before removing brain cancers so that they don’t affect other essential areas.
    From an evolutionary point of view, it’s highly unlikely that our comparatively larger brains would have evolved from our ancestors if the extra areas were not needed. In fact, there is absolutely no evidence to support the 10 percent theory.
How did the 10 percent theory get such widespread popularity?
选项 A、It was promoted in various types of popular media.
B、Albert Einstein argued strongly in support.
C、It was proven in scientific research.
D、Few people could prove it wrong.
答案A
解析 推理判断题。根据第一段最后一句“It’s a theory that has often been put forward in television documentaries，magazines，advertisements and books over the past century．”可知，在20世纪这个理论经常在公共媒体上出现，由此推测，这可能是这个理论盛行的原因之一。故A项正确。
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