1 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Have you ever imagined     1    (live) in 2200, about 200 years from now? A recent study describes robots, underwater cities and holidays in space. City planners, experts on space and architects    2     (ask) to give their ideas of life in 2200. According to them, the way people live, work and play will be totally different     3     how we do these things today. They also said that over twenty years ago, people couldn't imagine how the Internet     4     the smartphones would change our lives. But today, both have changed the way we communicate, learn and do daily things, and the changes in the next century will probably be even     5    (great).

Those     6    (question) in the research said that people might not go to the office in the future but would work at home instead. People will have advanced 3-D printers that will enable    7     to download a design for furniture or a food picture and then to "print" the sofa, table or pizza at home.    8     will also be less need for visits to the doctor. People will have a home health capsule that will "diagnose"    9    the problem is and provide various treatment.     10    (hopeful), they will also be going into space for holidays to get resources that have been used up on earth.

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 nanotechnology(纳米技术) make it likely that humans will live in the future beyond what was possible in the past. “There is a great effort 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 disease, 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”,Michael Zey means_________.

A．they have got some ideas about living forever

B．they believe that there is no limit of living

C．they are able to make people live past the present life span

D．they are sure to find the truth about long living

2. Donald Louria’s attitude towards long living is that________.

A．the human body is designed to last past about 120 years

B．it is possible for humans to live longer in the future

C．it is still doubtful how long humans can live

D．people can live from 120 to 180

3. The underlined word“it”(in Paragraph 4)refers to________.

A．a great effort

B．the conservative estimate

C．the idea of living from 200 to 300 years

D．the idea of living beyond the present life span

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

A．No Limit for Human Life

B．Living Longer or not

C．Science,Technology and Long Living

D．Healthy Lifestyle and Long Living