In the Caucasus region of Russia, nearly 50 out of every 100,000 people live to celebrate

In the Caucasus region of Russia, nearly 50 out of every 100,000 people live to celebrate their 100th birthday, and many don’t stop at 100! By comparison, in America only 3 people in 100,000 reach 100. But these Russian old people aren’t alone. The Pakistanis, who live high in the Himalaya Mountains, and the Ecuadorans of the Andes Mountains seem to share the secret of long life, too.
These people remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their 60s and 70s, some Caucasians aged 100 to 140, work in the fields beside their great-great-grandchildren. Even the idea of aging is foreign to them. When asked “at what age does youth end?”most of these old people had no answer. Several replied, “Well, perhaps at age 80.”
What accounts for this ability to survive to such old age, and to survive so well？First of all, hard physical work is a way of life for all of these long-lived people. They begin their long days of physical labor as children and never seem to stop. For example, Mr . Rustam Mamedov is 142 years of age. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intention of retiring from his life as a farmer. “Why？What else would I do？”he asks. All these people get healthful rewards from the environment in which they work. They all come from mountainous regions. They live and work at elevations of 1,660 to 1,000 meters above sea level. The air has less oxygen and is pollution-free. This reduced-oxygen environment makes the heart and blood vessel(血管) system stronger.
Another factor that may contribute to the good health of these people is their isolation. To a great extent, they are separated from the pressures and worries of industrial society. Inherited factors also play some role. Most of the longest-lived people had parents and grandparents who also reached very old ages. Good family genes may, therefore, be one factor in living longer.
【小题1】The example of Mr. and Mrs. Mamedov implies that some Caucasians aged 100 to 140 .A．become weak and hopelessB．are too old to work in the fieldsC．benefit from physical workD．are still working in the fields【小题2】What is the main way of life for all of these long-lived people?A．Retiring from their lives as farmers.B．Having been married for 90 years.C．Hard physical work.D．Having no intentions.【小题3】Which of the following factors isn’t helpful to people’s health and long life?A．Clean mountain air.B．Daily hard work.C．Good genesD．Stress and pressure.C

(答案→)C 解析：试题分析：文章大意：本文介绍了这在高加索山上的俄罗斯人，住在喜马拉雅山上的巴基斯坦人还有住在安第斯山上的厄瓜多尔人他们共同的长寿秘诀。【小题1】C 细节理解题。根据第三段hard physical work is a way of life for all of these long-lived people. They begin their long days of physical labor as children and never seem to stop.可知答案选C、这些高寿的人都从体力劳动中受益。【小题2】C 细节理解题。根据第三段提到的第一条秘诀是hard physical work is a way of life for all of these long-lived people.可知，这些长寿的人的主要原因是他们都从事着体力劳动。所以答案选C。【小题3】D 正误判断题。根据文章提到的这三个地方的长寿老人都生活在山区，并结合句子The air…makes the heart and blood vessel(血管) system stronger. 可知A项正确，山区的清新空气有助于长寿。结合上面两个题目可知，这些长寿老人都从事着体力劳动，所以B项正确。根据文章最后句子Good family genes may, therefore, be one factor in living longer.可知C项正确，好的基因也有助于长寿。根据句子To a great extent, they are separated from the pressures and worries of industrial society.可知，他们远离了工业社会的压力。所以D项不正确。因此答案选D、压力对长寿没有帮助。

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