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, 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 relatively a short period of time, so we
may suppose 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(容量). As time goes on, however, we shall have
to use our brains more and more, and finally we shall need our brains more and
more, and finally we shall need larger ones! This is likely to bring 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 become weaker and we have to wear glasses.
But over 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? 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
common with us. He will still be a human being, with thoughts and motions
similar to our own.
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．Man’s organs’ functions
will change
2.What serves as the evidence that man is changing?
A．Man has got
stronger eyes now than he ever had.
B．Man’s hair is getting thinner and thinner.
C．Man’s arms and legs have become lighter and weaker.
D．Man has been
growing taller over the past 500 years.
3.The change in man’s size of the forehead is probably
because __________.
A．he makes use
of only 20% of the brain’s capacity
B．his brain has
grown larger over the past centuries
C．he will use
his brain more and more as time goes on
D．the other 80%
of his brain will grow in due time
4.Which of the following is TRUE about a human being
in the future?
A．He is
hairless because hair is no longer useful.
B．He has
smaller eyes and wears better glasses.
C．His fingers
grow weaker because he doesn’t have to make use of
them.
D．He thinks and
feels in a different way.
5.It is implied that __________.
A．human beings
will become less attractive in the future
B．body organs
will become poorer if they are not used often
C．human beings
hope for a change in the future life
D．future life
is always predictable
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