In many parts of the world，people live to a healthy old age．What is the secret of their long lives? Three things seem to be very important：fresh（新鲜的）air，fresh food and a simple way of life．The Hunzas，people who live in the Himalayas（喜玛拉雅山），are famous all over India for long and healthy lives．They work near their homes in the clean mountain area．They do not travel a long way by bus，car or train．They do not sit all day in busy offices or factories．They take more exercise and eat less food than people in cities．They eat vegetables grown by themselves．They drink milk taken from their own cows．They do not need doctors，for there are not many illnesses．They are happy and quiet．

    根据短文内容判断正误，正确的在括号中写“T”，错误的写“F”。

（    ）1．There are three reasons why many people live to a healthy old age in many parts of the world．

（    ）2．People who 1ive in the Himalayas have few illnesses．

（    ）3．They needn’t travel a long way by bus，car or train．

（    ）4．They do more exercise and eat more food than people in cities．

（    ）5．They have less vegetables grown by themselves．