Question

閱讀下面短文，從每題所給的四個選項中選出最佳答案.

　　If you want to stay young, sit down and have a good think. This is the research finding of a team of Japanese doctors, who say that most of our brains are not getting enough exercise--and as a result, we are growing old unnecessarily soon.

　　Professor Taiju Matsuzawa wanted to find out why quite healthy farmers in northern Japan appeared to be losing their ability to think and reason（推理）at a rather early age, and how the speed of getting old could be slowed down.

　　With a team of researchers at Tokyo National University, he set about measuring brain volumes（容量）of a thousand people of different ages with different jobs.

　　Computer technology helped the researchers to get most exact measurements of the volume of the front and side parts of the brain, which have something to do with intellect（智力）and feelings, and decide the human character, As we all know, the back part of the brain, which control tasks like eating and breathing does not contract（萎縮）with age.

　　Contraction of front and side parts--as cells（細胞）die off--was seen in some people in their thirties, but it was still not found in some sixty and seventy-year-olds.

　　Matsuzawa concluded from his tests that there is a simple Way to prevent the contraction--using the head.

　　The findings show that contraction of the brain begins sooner in people in the country than in the towns. Those with least possibility, says Matsuzawa, are lawyers, followed by university professors and doctors, White collar workers doing the same Work day after day in government offices are, however, as possible to have contracting brains as the farm worker, bus drivers and shop assistants.

（1）The team of doctors wanted to find out ________.

[　　]

A. at what point people grow mentally old

B. how to make people live longer

C. the size of certain people's brains

D. which people are the most clever

（2）Their research findings are based on ________.

[　　]

A. an examination of farmers in northern Japan

B. tests given on a thousand old people

C. examining the brain volumes of different people

D. using computer technology

（3）The doctors' tests show that ________.

[　　]

A. our brains contract as we grow older

B. one part of the brain does not contract

C. sixty-year-olds have better brains than thirty-year-olds

D. some people's brain have contracted earlier than other people's

（4）According to the article, ________ are growing old earlier than people who live in the cities.

[　　]

A. farmers

B. office clerks

C. shop assistants

D. bus drivers

（5）The most possible conclusion of the passage is that ________.

[　　]

A. most of us should take more exercise

B. it's better to live in the town

C. the brain contracts if it is not used

D. the more one uses his brain, the sooner he becomes old

Answer 1

答案：A;C;D;A;C
解析：

(1) 這是一道主旨大意題. 由短文第二段Professor Taiju Matsuzawa wanted to find out why quite healthy farmers in northern Japan appeared to be losing their ability to think and reason at a rather early age，and how the speed of getting old could be slowed down.可知，以professor Taiju Matsuzawa為首的醫(yī)生研究的目的，就是想搞清楚為什么有的人在年輕時就失去了思考能力，以及如何使之延緩，答案為A. (2) 該題考查細節(jié).由短文第三段With a team of researchers at Tokyo National University，he set about measuring brain volumes of a thousand people of different ages with different jobs.可知，他研究的主要依據(jù)是檢測不同人的大腦容量，C為最佳選項. (3)  這是一道細節(jié)題.由短文最后一段The findings show that contraction of the brain begins sooner in people in the country than in the towns. Those with least possibility, says Matsuzawa，are lawyers，followed by university professors and doctors. White collar worker doing the same work day after day in government office are, however, possible to have contracting brains as the farm worker, bus drivers and shop assistants.可知，不同的人大腦萎縮的早晚是不一樣的，答案為D. (4)  細節(jié)判斷題.短文最后一段首句The findings show that contraction of the brain begins sooner in people in the country than in the towns. 說明，農(nóng)民比城市人要老得快，答案為A. (5)  這還是一道細節(jié)題.由短文倒數(shù)第二段Matsuzawa concluded from his tests that there is a simple way to prevent the contraction--using the head.可知，使用大腦是防止大腦萎縮的重要方法，C為最佳選項.