Sitting in front of the television is probably relaxing，but spending too much time in front of it may take years of your life.Watching less television may help you live a much longer life.
   Australian researchers（研究者）studied more than 1，000 people over the age of 25.Their study showed that if people watched TV for six hours a day，they lived about 4.8 years less than those who didn't watch any television.Also，people who are over the age of 25 lose 22 minutes of life for every hour of TV that they watch.
   Sitting in front of television isn't healthy.The more TV you watch，the less exercise you'll get.And the less exercise you get，the more likely it is that you'll be ill.
   Lennert Veerman，the researcher who led the study，says watching too much TV will influence （影響） people's life expectancies（預(yù)期的壽命），even for people who have a good eating habit.He thinks it's time for doctors to start asking their patient（病人） about how much TV they watch，as it can be indicator（指標(biāo)） of their health.
   As a result，Veerman has called on people to turn off their TV and get of the sofa to get some exercise. "Exercise is good，" He said， "Even light activity is good for healthy."

（1）Australian researchers did a study on

C

C

.
A．what people should do to live longer
B．what people usually do to relax after work
C．how watching too much TV can be bad for people
（2）What does Paragraph3 mainly tell us？

A

A

A．Why watching TV is bad for our health.
B．Why people don't exercise enough.
C．How often people should exercise.
（3）What does the underlined word "they" in Paragraph 4 refer to？

B

B

A．Doctors.
B．Patients.
C．Readers.
（4）According to Veerman，what should we do to keep healthy？

C

C

A．Go to the doctor often.
B．Have a healthy eating habit.
C．Get more exercise and watch less TV.