Questions 28 to 30 are based on the following news,

(28) Researchers at Boston University have identified a kind of, genetic signature in people who are likely to live to age 100 or older. The technique may also help doctors predict whether you’re likely to get a disease，decades before the symptom show up.

Living a long, healthy life tends to run in families. If your grandparents and parents lived into their 90s and remained relatively healthy until the end, there’s a pretty good chance you will, too.

So it’s pretty clear genetics plays some role in longevity.

In this study, the research team developed a new statistical way of, analyzing the genetic code of people who had reached age 100 as compared with people who had a more typical lifespan. Tom Peris, who heads the New England Centenarian Study, explains what they found.(29) Using just that large number of genetic markers，the team was able to predict in almost 4 out of 5 cases whether a person would live to be 100.

Peris says the key to successfully predicting long life was the sophisticated statistical analysis of many different gene variations that each played some role.Peris and his colleagues publish their study in the online edition of the journal Science.

The Boston University researcher says this kind of analysis could play a role，not just in predicting who will live longest, but in actually helping people live longer and healthier lives.(30) In an interview via Skype, Tom Peris said the same technique used to predict long life may also be used to predict whether a person might eventually develop certain diseases. He gave the example of Alzheimer’s Disease as one in which genetics plays a role.? As the cost of the needed genetic test continues to decline, he predicts doctors will be able to screen patients for diseases they may not develop until later in life, and recommend ways to avoid them.

 

题目

News 3

Questions 28 to 30 are based on the following news. At the end of the news item , you will be given 15 seconds to answer the questions.

Now, listen to the news.

28. What can’t the new technique do?

A. To tell how long you can live.

B. To predict whether you’re likely to get a disease.

C. To tell you what kind of disease you will get.

D. To analyze the genetic code and find out which gene plays role in longevity.

29. Using just that large number of genetic markers, the team was able to predict in almost____ cases whether a person would live to be 100.

A. 20% B. 80% C. one fifth D. two fifths

30. In an interview _____Tom Peris said the same technique used to predict might eventually develop long life may also be used to predict whether a person certain diseases.

A. telephone B. internet C. Skype D. MSN

 

答案解析

28. C细节题。此项技术并不能告诉你会得什么病，故选C。

29. B计算题。原文为4 out of 5 cases =80%,故选良

30. C细节题。Skype是一种网络视频电话软件，答案为C。