2. 外语
  3. During the 9th century scientists found that when certain parts of the brain of a man were 【B1】 , he would lose the 【B2】 to do c

During the 9th century scientists found that when certain parts of the brain of a man were 【B1】 , he would lose the 【B2】 to do c

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问题      During the 9th century scientists found that when certain parts of the brain of a man were 【B1】 , he would lose the 【B2】 to do certain things. And so, people thought that each part of the brain does a different 【B3】 . But modern research has 【B4】 out that this is not so, for it is not 【B5】 to say 【B6】 what each part of the brain does.
     In the past fifty years there 【B7】 a great increase in the amount of research 【B8】 on the brain. Chemists and biologists have 【B9】 that the 【B10】 the brain works it is not so 【B11】 as people in general may think. Chemists tell us that 100,000 chemical changes 【B12】 in the brain every second. Some recent researches also 【B13】 that we can remember everything 【B14】 happens 【B15】 us. We 【B16】 not be able to recall (回忆) the things we’ve heard and seen, but it is all kept there in the storehouse of the human mind.
     Earlier scientists thought the power of one’s brain got weaker as one grow 【B17】 . But it is now thought that is not 【B18】 . As long as the brain is 【B19】 【B20】 exercise it keeps its ability. 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. It is now thought that the more work we give our brains, the more work they are able to do.
选项 A、destroyed
B、injured
C、broken
D、wounded
答案B
解析 injure指“受伤”，不仅指外部也指内部。大脑受伤指头颅内的大脑受损，应用injure为妥，wound仅表示“外伤”，destroy是“毁坏”的意思，break意为“打破”，均不合题意。
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