英语专四 新闻听力 news 4-3-4

 新闻

Questions 28 to 30 are based on the following news,

(28) Researchers at Boston University have identified a kind of, genetic² 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 relatively³ healthy until the end, there’s a pretty good chance you will, too.

So it’s pretty clear genetics plays some role in longevity⁴.

In this study, the research team developed a new statistical⁵ way of, analyzing⁶ 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 gene¹ 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 helping⁷ 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 analyze⁸ 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。

1 gene   

n.遗传因子，基因

参考例句：

• A single gene may have many effects.单一基因可能具有很多种效应。
• The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。

2 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

3 relatively   

adv.比较...地，相对地

参考例句：

• The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
• The operation was relatively painless.手术相对来说不痛。

4 longevity   

n.长命；长寿

参考例句：

• Good habits promote longevity.良好的习惯能增长寿命。
• Human longevity runs in families.人类的长寿具有家族遗传性。

5 statistical   

adj.统计的，统计学的

参考例句：

• He showed the price fluctuations in a statistical table.他用统计表显示价格的波动。
• They're making detailed statistical analysis.他们正在做具体的统计分析。

6 analyzing   

v.分析；分析( analyze的现在分词 )；分解；解释；对…进行心理分析n.分析

参考例句：

• Analyzing the date of some socialist countries presents even greater problem s. 分析某些社会主义国家的统计数据，暴露出的问题甚至更大。 来自辞典例句
• He undoubtedly was not far off the mark in analyzing its predictions. 当然，他对其预测所作的分析倒也八九不离十。 来自辞典例句

7 helping   

n.食物的一份&adj.帮助人的，辅助的

参考例句：

• The poor children regularly pony up for a second helping of my hamburger. 那些可怜的孩子们总是要求我把我的汉堡包再给他们一份。
• By doing this, they may at times be helping to restore competition. 这样一来, 他在某些时候,有助于竞争的加强。

8 analyze   

vt.分析，解析 (=analyse)

参考例句：

• We should analyze the cause and effect of this event.我们应该分析这场事变的因果。
• The teacher tried to analyze the cause of our failure.老师设法分析我们失败的原因。