What will man be like in the future—in 5000 or even 50, 000 years from now? We can only make guesses, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.
Let us take an obvious example. Man, even five hundred years ago , was shorter than he is today. Now, on average, men are about three inches taller. Five hundred years is a relatively short period of time, so we may assume that man will continue to grow taller. Again, in the modem world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’ s capacity(容量). As time goes on , however , we shall have to use our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger. Nowadays our eyes are in constant use. In fact , we use them so much that very often they bee weaker and we have to wear glasses. But over a very long period of time it is likely that man’ s eyes will grow stronger.
On the other hand, we tend to make less use of our arms and legs. These, as a result, are likely to grow weaker. At the same time, however , our fingers will grow more sensitive（敏感的） because they are used a great deal in modern life.
But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald.
Perhaps all this gives the impression that future man will not be a very attractive creature to look at! This may well be true. All the same, in spite of all these changes, future man will still have a lot in mon with us. He will still be a human being, with thoughts and emotions similar to our own. …
【小题1】The passage mainly tells us that .A．man’s life will be different in the future. B．future man will look quite different from us. C．man is growing taller and uglier as time passes. D．human’s organs’ functions will bee weak “【小题2】The change in man’s size of forehead will probably be because . A．he makes use onIy20% of the brain’s capacity. B．his brain has grown larger over the past centuries. C．the other 80% of his brain will grow in due time D．he will use his brain more and more as time goes on :【小题3】What will be true about a human being in the future? A．He will be hairless because hair is no longer useful. B．He will have smaller eyes and will wear better glasses. C．His fingers will grow weaker because he won’t have to make use of them. D．He will think and feel in a different way.【小题4】It is implied that . A．human beings will bee less attractive in the future B．less use of a bodily organ may lead to its degeneration(退化,) C．human beings hope for a change in the future life D．future life is always predictableB
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(答案→)B
解析：本文是一篇科幻类短文，是关于将来的人类将变成什么样子，如果我们对某项技能使用较多，那么我们就可能会进一步发展该项。如果我们不使用，那么某项技能就有可能退化。
【小题1】B 主旨大意题。根据主题段第一段We can only make guesses, of course, but we can be sure that he will be different from what he is today, for man is slowly changing all the time.说明本文是关于将来的人会与现在的人有很大的差别，故B正确。
【小题2】D 细节题。根据第二段6,7行As time goes on , however , we shall have to use our brains more and more, and eventually we shall need larger ones! This is likely to bring about a physical change too: the head, in particular the forehead, will grow larger说明随着时间的流逝，人们用闹越来越多，所以前额也会发生变化。故D正确。
【小题3】A 细节题。根据倒数第二段1,2行But what about hair? This will probably disappear from the body altogether in course of time because it does not serve a useful purpose any longer说明以后人们都将是光头了，因为头发没有用处了。故A正确。
【小题4】B 推理题。本文所举的多个例子都说明我们的身上的物体的变化都是因为不使用而发生的退化，如我们的头发，我们的四肢蘑菇B正确。