Good health is the person’s most valuable possession(财富)．

1．________

Today, it is much more easier to be healthy than it was

2．________

in the past．Modern people know more than health,

3．________

have better food, and live in clean environment．

4．________

Also, scientists and doctors had learnt how to treat

5．________

many diseases(病)．Most people can quickly get for help

6．________

from a doctor or go to a hospital since they are ill．As a

7．________

result, people in the modern world generally live longer

8．________

than people used to．People in developed country can

9．________

expect to live for twice as long people who lived a few

10．________

hundred years ago．