英语听力文摘 English Digest 626、我们只用了大脑的10%吗？
时间：2018-12-31 作者：英语课 分类：英语听力文摘 English Digest
英语课
Do We Only Use 10% Of Our Brains?
Have you ever heard that we humans use only ten percent of our brains? This oft-quoted myth holds a certain appeal because if it were true, then we could instantly become ten times more intelligent just by firing up that sleepy majority of the brain!
Animals Experiments
The idea that we use only a small fraction of the brain dates back to animal experiments in the 19th century. When scientists stimulated 1 a specific part of the brain, the animal moved its leg or tail. If a tiny part of the brain could do something so grand, what was the use of the rest of the brain? Some scientists assumed (rather unscientifically) that large parts of the brain were simply useless.
Then, in the early 20th century, scientists observed that stimulating 2 certain regions of the brain had no physical effects. They dubbed 3 these seemingly useless parts of the brain the “silent cortex.” Today we know that in humans, much of the “silent cortex” is actually devoted 4 to complex activities like language, learning, and imagining.
Brain Scans
Brain scans have shown that different parts of the brain crackle into heightened activity as we shift our attention and focus, but even as we sleep, many areas of the brain are extremely active. Would you be smarter if your entire brain constantly worked to maximum capacity? Interestingly enough, the opposite is probably true. The less brain activity you need to perform a given task, the more the brain as a whole is capable of doing.
a.刺激的
- The exhibition has stimulated interest in her work. 展览增进了人们对她作品的兴趣。
- The award has stimulated her into working still harder. 奖金促使她更加努力地工作。
adj.有启发性的，能激发人思考的
- shower gel containing plant extracts that have a stimulating effect on the skin 含有对皮肤有益的植物精华的沐浴凝胶
- This is a drug for stimulating nerves. 这是一种兴奋剂。
v.给…起绰号( dub的过去式和过去分词 )；把…称为；配音；复制
- Mathematics was once dubbed the handmaiden of the sciences. 数学曾一度被视为各门科学的基础。
- Is the movie dubbed or does it have subtitles? 这部电影是配音的还是打字幕的？ 来自《简明英汉词典》