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ran,the greater was his need for food. Thus,those who ran the most ate the most,yet lost the greatest amount of body fat.6. What kind of physical problem do many grownup Americans have? are too thin. work too hard. are too fat. lose too much body fat.【批閱】回答正確!【答案】C7. Based on the information given in this article,suppose there are 500 grownup Americans, about how many of them have a weight problem?....【批閱】回答正確!【答案】D8. Are there scientific facts to support that eating too much is the cause of the “weight problem”?,there are plenty of them. course,there are facts to show this is true. are hardly any scientific facts to support this. don’t know because the information is not given.【批閱】回答正確!【答案】C9. Compared with the grownup Americans today,the Americans of 1910 ______. more food and had more physical activities less food but had more activities less food and had less physical activities more weight problems【批閱】回答正確!【答案】A10. What have some modern medical and scientific researchers reported to us? people eat less food and are less active. people eat more food and are more active. people eat more food but are less active. people run less but eat more food.【批閱】回答正確!【答案】APassage 2As far back as 700 BC, man has talked about children being cared for by wolves. Romulus and Remns, founders of ancient Rome,were said to have been brought up by wolves. It is believed that when a shewolf loses her litter,she tries to find a human baby to take its place. This seemingly unreasonable idea did not bee believable until the nineteenth century when a French doctor actually found a boy wandering in a forest. The boy had no clothes on and was judged to be ten years old by some experts. He did not walk straight up like a human being,but with both his hands and feet touching the ground. The boy could not speak but howled like