[单项选择]

Losing Weight

Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes about weight, body image and food, a group of Toronto researchers reported Tuesday.
Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy weights, nearly a third felt they were overweight and were trying to lose pounds. Even at the tender age of 10, nearly 32 percent of girls felt" too fat" and 31 percent said they were trying to diet.
McVey, a researcher at the Hospital for Sick Children in Toronto, and her colleagues analyzed data collected in a number of surveys of southern Ontario school girls between 1993 and 2003, reporting their findings in Tuesday’s issue of the Canadian Medical Association Journal.
Nearly 80 percent of the girls had a healthy body weight and only 7.2 percent were considered overweight using standard weight-to, height ratios. Most researchers suggest the rate of
A. Nearly 80 percent.
B. 7.2 percent.
C. Nearly 30percent.
D. 10.5 percent.

[单项选择]
Girls as young as 10 years old are dieting and in danger of developing unhealthy attitudes about weight, body image and food, a group of Toronto researchers reported Tuesday.
Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy weights, nearly a third felt they were overweight and were trying to lose pounds. Even at the tender age of 10, nearly 32 percent of girls felt" too fat" and 31 percent said they were trying to diet.
McVey, a researcher at the Hospital for Sick Children in Toronto, and her colleagues analyzed data collected in a number of surveys of southern Ontario school girls between 1993 and 2003, reporting their findings in Tuesday’s issue of the Canadian Medical Association Journal.
Nearly 80 percent of the girls had a healthy body weight and only 7.2 percent were considered overweight using standard weight-to, height ratios. Most researchers suggest the rate of
A. were overweight
B. were on a diet
C. had unhealthy attitudes about weight
D. had a healthy body weight

[单项选择]

The process of gaining or losing weight can be explained by comparing your body to your car. Both run (51) fuel, food for your body and gasoline for your car. Both (52) that fuel, first into heat, then energy, some of (53) is used to do work, and some emitted as waste. And (54) your car uses more energy when the engine is racing than when it is idling, (55) does your body use more energy when you are working hard than (56) you are resting.
For the purpose of this comparison, (57) , there is one significant difference between them. Your car cannot store fuel by turning it into (58) else; all gasoline not (59) remains as gasoline. But your body stores (60) energy as fat. When the gas tank is completely empty, the car won’t run; but your body can burn fat to provide more energy.

51（　）.
A. in 
B. on 
C. for 
D. against

[单项选择]A. 50 years old. B. 45 years old. C. 55 years old. D. 20 years old.

[填空题]David is 10 years old. His sister is 8 years old David is ______ years than ______ his sister.

[单项选择]A. He is against losing weight. B. He thinks the obese people should not eat meat.
C. He suggests the obese people to eat less and lose weight.
D. He thinks that the obese people should do more exercise.

[填空题]The most (effect)（）ways of losing weight are exercising more and eating balanced meals.