[填空题]
Why do so many people live to a healthy old age in certain
parts of the world What is the secret of their long lives Three things seem to
{{U}} (36) {{/U}} to it: fresh air, fresh food and a simple way of life.
People work near their homes in the clean, mountain air instead of travelling
long {{U}} (37) {{/U}} to work by bus, car or train. They do not sit all
day in {{U}} (38) {{/U}} offices or factories, but work hard outdoors in
the friends. They take more exercise and eat less food than people in the cities
of the West. For years, the Hunzas of the Himalayas did not need {{U}} (39)
{{/U}} , lawyers or doctors. There was no crime, no {{U}} (40) {{/U}}
and not much illness in their society. They were a happy, peaceful people,
famous all over India for their long, healthy lives.
Although
many people are keen on {{U}} (41) {{/U}} out ways to live a longer life,
there are people worrying about their {{U}} (42) {{/U}} years. Once a
