1 . What will man be like in the future-in 5,000 or even 50,000 years? We can only make guesses, 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 example. Man, even five hundred years ago, was shorter than he is today. Now, on average（平均），men are about three inches（英尺）taller. Again, in the modern world we use 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 to the head, especially the forehead, will grow larger.
Nowadays our eyes are used very often. In fact, we use them so much that they become 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 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（光头的）.
Perhaps all this shows that future man will not be a very attractive being to look at! This may well be true. No matter how great the change is, future man will still have a lot in common with us.
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 as time passes |
| A．weight and ears | B．brain and height | C．arms and legs |
| A．he makes use only 20% of the brain’s capacity |
| B．the other 80% of his brain will grow with time |
| C．he will use his brain more and more as time goes on |
| A．纤细的 | B．灵敏的 | C．笨拙的 |
| A．He may be 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. |
2 . Do you want to live another 100 years or more？Some experts say that scientific advances will one day enable humans to last tens of years beyond what is now seen as the natural limit of the human life span.
“I think we are knocking at the door of immortality(永生),”said Michael Zey，a Montclair State University business professor and author of two books on the future. “I think by 2075 we will see it and that's a conservative estimate（保守的估计）.”
At the conference in San Francisco，Donald Louria,a professor at New Jersey Medical School in Newark said advances in using genes as well as nano technology（纳米技术）make it likely that humans will live in the future beyond what has been possible in the past. “There is a great push so that people can live from 120 to 180 years,” he said. “Some have suggested that there is no limit and that people could live to 200 or 300 or 500 years.”
However, many scientists who specialize in aging are doubtful about it and say the human body is just not designed to last past about 120 years. Even with healthier lifestyles and less diseases, they say failure of the brain and organs will finally lead all humans to death.
Scientists also differ on what kind of life the super aged might live." It remains to be seen if you pass 120, you know; could you be healthy enough to have good quality of life？" said Leonard Poon，director of the University of Georgia Gerontology Centre." At present people who could get to that point are not in good health at all."
1. By saying “we are knocking at the door of immortality”, what does Michael Zey mean?| A．they believe that there is no limit of living |
| B．they are sure to find the truth about long living |
| C．they have got some ideas about living forever |
| D．they are able to make people live past the present life span |
| A．people can live from 120 to 180 years |
| B．it is still doubtful how long humans can live |
| C．the human body is designed to last past about 120 years |
| D．it is possible for humans to live longer in the future |
| A．a great push | B．the idea of living from 200 to 300 years |
| C．the idea of living beyond the present life span | D．the conservative estimate |
| A．Living Longer or Not | B．Science，Technology and Long Living |
| C．Healthy Lifestyle and Long Living | D．No Limit for Human Life |
