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  3. What Will Man Be Like in the Future What will man be like in the future—in 5 , 000 or even 50, 000 years from now? We can onl

What Will Man Be Like in the Future What will man be like in the future—in 5 , 000 or even 50, 000 years from now? We can onl

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问题                   What Will Man Be Like in the Future
   What will man be like in the future—in 5 , 000 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.【B1】______
   Let us take an obvious example. Man, even five hundred years ago, was shorter than he is today.【B2】______Five hundred years is relatively short period of time, so we may assume that man will continue to grow taller.
   Again, in the modern world we use our brains a great deal. Even so, we still make use of only about 20% of the brain’ s capacity. As time goes on, however, we shall have to use our brains more and more, and eventually we shall need larger ones! 【B3】______
   Nowadays our eyes are in constant use. In fact, we use them so much that very often they become weaker and we have to wear glasses. But over 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. 【B4】______
   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.【B5】______He will still be a human being, with thoughts and emotions similar to our own.
   A. Man need not do housework.
   B. This is likely to bring about a physical change to the head, in particular the forehead, will grow larger.
   C. At the same time, however, our fingers will grow more sensitive because they are used a great deal in modern life.
   D. For man is slowly changing all the time.
   E. All the same, in spite of all these changes, future man will still have a lot in common with us.
   F. Now, on average, men are about three inches taller.
【B1】
选项
答案D
解析 对于“未来人类长什么样子”这个问题，我们只能猜测，但可以肯定的是未来的人类与现在的人长得不一样，而文章后面几段全部是围绕这些不同展开的论述，因此空格处的内容应该与这一信息相关。通过分析备选答案，可以看出选项D“For man is slowly changing all the time”符合上下文语境，解释了为什么未来的人类与现在的人长得不一样，因此D为应填句子。
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