案例分析题
Exercise should play a very large role in our daily life.Everyone，no matter what age，needs exercise every day.However，modem life may prevent people from getting the daily exercise they need.
There are many kinds of exercises that help people keep physically（身体上地）fit，if they axe done every day.There are sit-up（仰卧起坐）exercises that anyone can perform.for a few minutes every day.For a young person football is one of the best games.If more people would exercise daily，they would find themselves better all the time.
Television and other modem inventions could possibly be a factor that produces physical unfitness（不适）.Television can be very educational，but mostly it is just a waste of time：With the automobile（汽车），another modem invention，people no longer walk to any place.If people are going to sit for hours in front of their TV sets and ride in their cars everywhere，they need to get exercise by sit-ups or playing football.