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in the united states阅读理解"

in the united states阅读理解

原文:

In the United States,30 percent of the adult population has a"weight problem.Some people think the reason is clear-----they eat too much. But the scientific evidence does little to support this idea. Going back to the America of 1910. We can find that people were thinner than today, but they ate more food than us. In those days people worked harder, walked more ,used machines less and didn't watch TV.

Several modern studies ,such as a study of 3545 London office workers in 1979, report that fat people eat less than thin people .

Studies show that thin people are more active than fat people. A study by a group a t stanford University found the following interesting fact:

The more the men run , the more their body fat lost.

The more they run , the more food they need.

Those who run the most eat the more, and lose the most body fat.

现在除了在家吃饭外,人们在美国有许多不同的抉择:民族食品、保健食品和快餐。 民族餐馆和超市在美国是普遍的。作为一个移民国家,美国享有多种民族的食物。大