11.What will man be like in the future-in 5000or even 50,000years 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 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!This is likely to bring about a physical change to 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 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 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 emotions similar to our own.
32.Which of the following serves as the evidence that man is changing?C
A.Man's hair is getting thinner and thinner.
B.Man has got stronger eyes now than he ever had.
C.Man has been growing taller over the past 500years.
D.Man's arms and legs have become lighter and weaker.
33.Which of the following is TRUE about a human being in the future?C
A.He thinks and feels in a different way.
B.He has smaller eyes and wears better glasses.
C.He is hairless because hair is no longer useful.
D.His fingers grow weaker because he doesn't use them.
34.The passage mainly tells us thatB.
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
35.It is implied thatB
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.