Look at the questions for this part. You will hear a passage about "Living a Long Life ". You will listen to it twice. F

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问题     Look at the questions for this part.
    You will hear a passage about "Living a Long Life ". You will listen to it twice.
    For questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
    Mark one letter A, B, or C on the Answer Sheet.
According to the author, which of the following is true?
Look at the questions for this part.
    You will hear a passage about "Living a Long Life ". You will listen to it twice.
    For questions 24-30, indicate which of the alternatives A, B, or C is the most appropriate response.
    Mark one letter A, B, or C on the Answer Sheet.
                        Living a Long Life
    In the Caucasus region of the Soviet Union, nearly 50 out of every 100,000 people live to celebrate their 100th birthday. But these Soviet old people aren’t alone. The Pakistani Hunzas, who live high in the Himalaya Mountains, and the Vilcabambans of the Andes Mountains in Ecuador seem to share the secret of long life too.
    These peoples remain healthy in body and spirit despite the passage of time. While many older persons in industrial societies become weak and ill in their sixties and seventies, some Soviet Georgians, aged 110 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." The very youngest estimate was age 60.
    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 labour as children and never seem to stop. For example, Mr. Rustam Mamedov is 142 years of age. He remembers his life experiences: the Crimean War of 1854; the Turkish War of 1878; the Bolshevik Revolution in 1917. His wife is 116 years old. They have been married for 90 years. Mr. Mamedov has no intentions of retiring from his life as a farmer. "Why? What else would I do?" he asks. Oh, he’s slowed down a bit. Now he might quit for the day after 6 hours in the field instead of 10.
    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 5,000 to 12,000 feet(1,660 to 4,000 metres)above sea level. The air has less oxygen and is pollution-free. This reduced oxygen environment makes the heart and blood vessel 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.
    Finally, although these three groups don’t exactly eat the same food, their diets are full of fresh fruits, vegetables, nuts, grains, and a youthful approach to life all contribute to the health and remarkable long life of all these people.
This is the end of Part 4. You now have 2 minutes to copy your answers on the Answer Sheet.

选项 A、Separation from the pressures and worries of industrial society is indispensable.
B、Good family genes form the major factor in living longer.
C、Food and diet is the only factor that makes people strong and healthy.

答案B

解析
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