阅读理解。
Man 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 a guess,
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
believe 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. This is likely to bring about a physical change till 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 become weaker
and we have to wear glasses. But over a 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 because they are used a great deal in
modern life.
But what about hair? It will probably disappear from the body altogether in the course of time because it
does not serve a useful purpose any longer. In the future, then, both sexes are likely to be bald (秃头的; 秃顶
的).
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 common with us.
He will still be a human being, with thoughts and emotions similar to our own.
1. The passage tells us about _____.
A. how man's life will be in the future
B. how future man will look like
C. the fact that man's organs will function differently in the future
D. the fact that man is growing uglier as time goes on
2. There is evidence that _____.
A. man has been growing taller over the past 500 years
B. man has got stronger eyes than he ever had
C. man's hair is getting thinner and thinner
D. man's limbs (肢) are getting weaker because he tends to make less use of them
3. Man's forehead will grow larger because _____.
A. he will make use of only about 20% of the brain's capacity
B. the other 80% of his brain will grow in proper time
C. he had rather narrow forehead a few hundred years ago
D. he will have to use his brain more and more as time goes on
4. Future man will probably _____.
A. have smaller eyes
B. have larger eyes
C. see better
D. have to wear better glasses
5. The reason for believing that future man will be different is that he _____.
A. is always so
B. never stops changing
C. hopes for a change
D. will live a different life
