共用题干It is well一known that life expectancy is long

共用题干

It is well一known that life expectancy is longer in Japan than in most other countries.A______(51)
report also shows that Japan has the longest health expectancy in the world.A healthy long life is the result of
___________(52)in social environment.
Scientists are trying to work___________(53)exactly what keeps elderly Japanese people so healthy,and
whether there is a lesson to be__________(54)from their lifestyles for the rest of us. Should we_________(55)
any changes to our eating habits,for instance,or go jogging each day before breakfast?Is there any secret
ingredient in the Japanese diet___________(56)is particularly beneficial____________(57)the human body?
Another factor contributing to the rapid population aging in Japan is a___________(58)in birthrate.
Although longer________(59)should be celebrated,it is actually considered as a social problem.The
___________(60)of older people had doubled in the last half century and that has increased pension and
medical costs.The country could soon be__________(61)an economic problem,if there are so many old
people to be looked____________(62)and relatively few younger people working and paying taxes to support
them.
_________(63)the retirement age from 65 to 70 could be one solution to the problem.Work can give the
elderly a________(64)of responsibility and mission in life.It’S important that the elderly play active
___________(65)in the society and live in harmony with all generations.

_________(58) A:increase B:provide C:examine D:decline