题目内容：

Do you want to live another 100 years or more? Do you want to live never to die? Some experts say, it will be not a dream one day. Modern technology will make it come true. Man will live more years beyond what is now seen as the natural limit of the human life.

“ I think we are knocking at the door of immortality,” said Michael, a professor and author of two books on human life expectancy. “I think by 2075 we will see it and it’s no longer a dream. Human’s life expectancy may have not limit.”

At the meeting in San Francisco, Donald Louria, a professor at New Jersey Medical School said advances in using genes as well as other technology 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 300 or 500 years.”

However, many scientists are doubtful about it and say the human body is just not designed to last more than about 120 years. Even with healthier lifestyles and less disease, they say failure of the brain and other parts of the body will finally lead all humans to death.

Scientists also hold different opinions on what kind of life man might live.  “If you pass 120, you know; could you be healthy enough to have good quality of life? It’s a big question.” said Leonard Poon, director of the university center.  “At present people who could get to that point are not in good health at all.”

1.The underlined word in the second paragraph probably means _____.

A．dying slowly       B．living longer        C．living forever       D．dying quickly

2.Donald’s attitude is that______.

A．human beings may never die in the future

B．it is not certain how long humans can live

C．the human body can last about 120 years

D．it is possible for man to live longer in the future

3.What would be the best title for this text?

A．Living longer or not                      B．Science and long living

C．No limit for human life                    D．Healthy lifestyle and living

4.In the last sentence “get to that point” means ____.

A．get that idea                           B．get to 120 years old

C．know how to live forever                 D．have good quality of life