Question

    A study has found that a lifetime of regular exercise and activity can slow down the aging process (衰老过程). Researchers say that getting older should not necessarily mean becoming more weak or sick. Their research shows that a devotion to a life of movement and exercise may help us live not only longer, but also healthier.

For their study, the researchers looked at two groups. The first group was made up of 125 non-professional cyclists between the ages of 55 to 79. This group included 84 healthy men and 41 healthy women. We will call this group the “cyclists”.

Researchers then found 130 people to make up a second group. Within this group, 75 people were aged from 57 to 80. The other 55 were between the ages of 20 and 36. The people in this group were also healthy, but they did not exercise regularly. We will call this group the “non-exercisers”. Smokers, heavy drinkers of alcohol and people with other health issues were not included in the study.

Then, researchers gave both groups a series of tests. They tested their muscle mass (肌肉质量), muscular strength, percentage of body fat and the strength of their immune (免疫的) systems. Then the researchers compared the results of the two groups.

Results showed that the cyclists did not experience body changes usually regarded as a normal aging process. For example, they did not lose muscle mass or muscular strength. Also, their body fat did not increase with age.

The researchers also found something they had not expected. The study showed that the immune systems of the cyclists did not age either.

The researchers advise us all to find an exercise that we like in our lives.

1.How did the researchers carry out the study?

A.By comparing. B.By discussing.

C.By imagining. D.By reasoning.

2.Which of the following is a result of the research?

A.The cyclists kept a thin body shape.

B.The non-exercisers gained weight easily.

C.The cyclists’ muscles remained strong with age.

D.The non-exercisers usually had health problems.

3.Which is an unexpected result for the researchers?

A.The cyclists had normal aging process.

B.The cyclists’ immune systems didn’t age.

C.The cyclists lost nearly all their fat.

D.Everyone needed an exercise in their lives.

4.Which of the following can be the best title for the text?

A.Healthy People Need More Exercise

B.Take an Exercise, the Harder, the Better

C.Cycling Is the Best Way to Prevent Aging

D.A Lifetime of Exercise Slows Aging Process

Answer

1.A

2.C

3.B

4.D

【解析】

本文为说明文。文章介绍了一项研究，研究发现终身规律锻炼或运动可减缓衰老进程。

1.推理判断题。根据第二、三、四段对研究过程的描述及第四段中的Then the researchers compared the results of the two groups.（然后研究人员比较了两组的结果）可推断，研究人员通过比较来进行研究。故A选项正确。

2.细节理解题。根据倒数第三段中的Results showed that the cyclists did not experience body changes usually regarded as a normal aging process. For example, they did not lose muscle mass or muscular strength.（结果显示，骑自行车的人并没有经历通常被认为是正常老化过程中的身体变化。例如，他们没有失去肌肉质量或肌肉力量）可知，随着年龄的增长，骑自行车的人的肌肉依然保持强健。故C选项正确。

3.细节理解题。根据倒数第二段中的The study showed that the immune systems of the cyclists did not age either.（研究表明，骑自行车的人的免疫系统也没有老化）可知，骑自行车的人的免疫系统没有老化。故B选项正确。

4.标题判断题。根据第一段中的A study has found that a lifetime of regular exercise and activity can slow down the aging process (衰老过程).（一项研究发现，终生有规律的运动和活动可以减缓衰老过程）及下文对这项研究的描述可知，D项“一生的锻炼可以减缓衰老的过程”适合做本文最佳标题。故D选项正确。