单选题Directions:After reading the following passage, you will
find 5 unfinished statements or questions. For each statement there are four
choices marked A, B, C and D, you should make the best choice and mark the
corresponding letter on the Answer Sheet with a single line through the
center. About 70 million Americans are trying to
lose weight. That is almost 1 out of every 3 people in the United States. Some
people go on diets. This means they eat less of certain foods, especially fats
and sugars. Other people exercise with special equipment, take diet pills, or
even have surgery. Losing weight is hard work, and it can also cost a lot of
money. So why do so many people in the United States want to lose
weight? Many people in the United States worry about not
looking young and attractive. For many people, looking good also means being
thin. Other people worry about their health. Many doctors say being overweight
is not healthy. But are Americans really fat? Almost 30 million
Americans weight at least 20 percent more than their ideal weight. In fact, the
United States is the most overweight country in the world. "The stored fat of
adult Americans weights 2.3 trillion pounds," says University of Massachusetts
anthropologist George Armelagos. He says burning off that stored energy would
produce enough power for 900,000 cars to go 12,000 miles.
Losing weight is hard work, but most people want to find a fast and easy way to
take off fat. Bookstores sell lots of diet books. These books tell readers how
to lose weight. Each year, dozens of new books like these are written. Each one
promises to get rid of fat.
单选题
Which of the following is NOT mentioned as a way of losing weight?
A. To eat less fats and sugars.
B. To take much exercise.
C. To have surgery.
D. To work hard.
【正确答案】
D
【答案解析】[解析] 从文中第一段可以看出，只有“To work hard.”是没有出现的。所以答案选择D。
单选题
Many Americans are trying to lose weight because ______.
A. they want to look attractive
B. they want to keep fit
C. they are misled by doctors
D. both A and B
【正确答案】
D
【答案解析】[解析] 根据第二段中“Many people in the United States worry about not looking young and attractive.”以及“Other people worry about their health.”这两句话可以判断答案选择D。
单选题
The figures given in the third paragraph suggests that ______.
A. Americans are dependent on cars
B. cars consume a lot of energy
C. Americans need losing weight
D. excess of fat can be a source of energy
【正确答案】
C
【答案解析】[解析] 通过“The stored fat of adult Americans weights 2.3 trillion pounds”以及“He says burning off that stored energy would produce enough power for 900,000 cars to go 12,000 miles.”可以得知，美国的肥胖问题的确很严重，美国人的确需要减肥。
单选题
It can be inferred from the last paragraph that ______.
A. diet books are not always effective
B. diet books are usually helpful
C. there are lots of ways of losing weight
D. bookstores are keeping their promises
【正确答案】
A
【答案解析】[解析] 从最后一段“Losing weight is hard work, but most people want to find a fast and easy way to take off fat.”可知，减肥很艰苦，并不是靠看节食书实现。
单选题
It can be concluded from the passage that ______.
A. people think too much of their appearance
B. there is not a sure way of losing weight as yet