专四
Women's minds work differently from men's. At least, that is what most men are convinced of. Psychologists view the subject either as a matter of frustration or a joke. Now the biologists have moved into this minefield, and some of them have found that there are real differences between the brains of men and women. But being different, they point out hurriedly, is not the same as being better or worse.
There is, however, a definite structural variation between the male and female brain. The difference is in a part of the brain that is used in the most complex intellectual processes--the link between the two halves of the brain.
The two halves are linked by a trunkline of between 200 and 300 million nerves, the corpus callosum. Scientists have found quite recently that the corpus callosum in women is always larger and probably richer in nerve fibres than it is in men. This is the first time that a structural difference has been found between the brains of women and men and it must have some significance. The question is "What"? and this difference exists, are there others? Research shows that present-day women think differently and behave differently from men. Are some of these differences biological and inborn, a result of evolution? We tend to think that it is the influence of society that produces these differences. But could we be wrong?
Research showed that these two halves of the brain had different functions, and that the corpus callosum enabled them to work together. For most people, the left half is used for word handling, analytical and logical activities; the right half works on pictures, patters and forms. We need both halves working together. And the better the connections, the more harmoniously the two halves work. And, according to research findings, women have the better connections.
But it isn't all that easy to explain the actual differences between skills of men and women on this basis. In Schools throughout the world girls tend to be better than boys at "language subjects" and boys better at moths and physics. If these differences correspond with the differences in the hemispheric trunk line, there is an unalterable distinction between the sexes.
We shan't know for a while, partly because we don't know of any precise relationship between abilities in school subjects and the functioning of the two halves of the brain, and we cannot understand bow the two halves interact via the corpus callosum. But this striking difference must have some effect and, because the difference is in the parts of the brain involved in intellect, we should be looking for differences in intellectual processing. Which of the following statements is CORRECT?
A．Biologists are conducting research where psychologists have given u
B．Brain differences point to superiority of one sex over the othe
C．Results of scientific research fail to support popular belie
D．The structural
【解析】推理题。文章第1段第3句说心理学家认为讨论男女差别的话题不是让人沮丧就是让人觉得无聊好笑．可见心理学家们对此已放弃努力．接着第4句又说“现在生物学家涉足这一复杂领域”，故选项A正确。
【点睛】根据文章第1段的最后一句话，“差别不意味有优劣之分”，因此B是错误的。第2段第l句话说明研究结果与人们想法相符，第3段第2、3句话都明确说男女结构差异是新近的发现，可见C和D都不正确。
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