2004年11月北京地区普通高等学校成人教育本科生英语统一考试 试题（A）
Part I Reading Comprehension （30%）
Directions： There are three passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A, B, C, and D. You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through center.
Passage 1
Questions 1 to 5 are based on the following passage：
In the United States, 30 percent of the adult population has a "weight problem". To many people, the cause is obvious： they eat too much. But scientific evidence does little to support this idea. Going back to the America of the 1910s, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less and didn't watch television. Several modern studies, moreover, have shown that fatter people do not eat more on the average than thinner people. In fact, some investigations, such as the 1979 study of 3,545 London office workers, report that, on balance, fat people eat less than slimmer people.
Studies show that slim people are more active than fat people. A study by a research group at Stanford University School of Medicine found the following interesting facts：
The more the men ran, the more body fat they lost.
The more they ran, the greater amount of food they ate.
（76） Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.
1. The physical problem that many adult Americans have is that ________.
A they are too slim B they work too hard
C they are too fat D they lose too much body fat
2 According to the article, given 500 adult Americans, _______ people will have a "weight problem."
A 30 B 50 C 100 D 150
3 Is there any scientific evidence to support t
