题目内容
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 has been possible in the past. "There is a great push so that people can live from I20 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 ageing 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."
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
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
B. the idea of living beyond the present life span
C. the idea of living from 200 to 300 years
D. the conservative estimate
B. Science, Technology and Long Living
C. No Limit for Human Life
D. Healthy Lifestyle and Long Living
阅读理解E
Do you have a sore throat, a running nose and a headache? Do you keep coughing and sneezing? If you do, the chances are that you have a cold or perhaps flu---but which one? Although both colds and flu are caused by viruses, they are very different illnesses.
Colds, which usually last about a week, affect the nose most. They commonly cause a running nose and sneezing. Sometimes, they cause a headache, a cough and slightly aching muscles.
Flu is a much more serious illness and is caused by different groups of viruses. People with flu usually get all the symptoms(症状) described above. However, they also get a high fever, a dry cough and much worse aching. Fever is one of the characteristic symptoms of the flu for all ages. The symptoms also last much longer. Sometimes they don’t disappear for at least two weeks.
Flu can be a deadly disease. The elderly(年长的), who are weaker and less healthy than most younger people, can die from flu. This is one reason why old people are advised to have a flu injection(预防针) before the start of winter when flu is most common. This injection is inexpensive and definitely(明显地)worth it.
If you have a cold or flu, you must always deal with used tissues(手巾纸) carefully. Don’t leave dirty tissues on your desk or on the floor. Someone else has to pick these up and viruses could be passed on. And finally, remember to cover your nose and mouth when you sneeze! You don’t want to see the small drops of liquids blown(喷) out of your nose and mouth when you sneeze, do you? Disgusting(令人作呕), eh? Now you can understand why it’s a good idea to cover your nose and mouth when you sneeze!
【小题1】 In paragraph 4, we learn that ________.
| A.flu injection can cause death |
| B.most old people die from flu |
| C.flu can kill old people easily |
| D.flu is most common in summer |
| A.it helps keep your classroom tidy |
| B.it prevents the spread of colds and flu |
| C.people hate picking up dirty tissues |
| D.picking up lots of tissues is hard work |
| A.Both colds and flu last the same time. |
| B.Both colds and flu can be prevented by injection. |
| C.Both colds and flu are caused by the same viruses. |
| D.Both colds and flu have an aching symptom. |
| A.Colds and Flu |
| B.The Different Symptoms of a Cold and Flu |
| C.Prevention Is Better Than Cure |
| D.Cover Your Nose and Mouth When Sneezing |