实用英语口语：情景交际-为什么有这么多胖的人

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　　C: well, there are certain factors that effect people's size and
weight.
        　　A: what are they?
        　　C: one study said that low-income groups have a higher percentage of
over-weight people than higher income families.
        　　A: why?
        　　C: the survey said that the low, income groups eat more junk food on a
daily basis.
        　　A: that makes sense. Probably less time to make dinner and the junk food is
cheaper.
        　　C: and junk food contains lots of fat and oil. There is one final reason
why so many people are fat.
        　　A: what's that?
        　　C: nobody exercises anymore-not even kids! The average american home has
the TV on for 6 hours a day!
        　　A: wow! No wonder people are so fat. Say, Carl, looks like you could be
doing a bit more exercising.
        　　C: yeah, I guess so.
        　　A: you should consider eating healthier food and getting some more
exercise.
        　　C: hey, I started a diet and lost 10 pounds.
        　　A: so what happened?
        　　C: well, I quit and gained it back plus 5 pounds.
        　　A: you should have kept trying.