第二节 ： 任务型阅读（共5小题，每题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项， 将其标号填入第二卷上方的相应位置。选项中有一项为多余选项。
People are overweight for many reasons, the most important one of which is that they eat the wrong foods, get the wrong types of calories per meal, 51 . Food is more powerful than any weight loss pill, because the food that you eat can either make you thin or fat. This is true because your body is like an engine, and it only needs certain foods at certain intervals(间隔)each day. Low-calorie Diets Do Not Work
The reason people cannot lose weight by starving themselves is that their metabolism(新陈代谢)will detect any major drop in calories 52 . That is the reason why you can eat 1,000 calories per day and not lose any weight, 53 .
Low-fat Diets Do Not Work
Many people in today’s society are buying mostly low- fat or non-fat food at the grocery store. 54 . However, people are getting fatter than ever before by doing this. They are not losing weight by changing to this low fat lifestyle.
Losing weight has nothing to do with these things. 55 , such as fruit and vegetables, eat them at the right time, and exercise every day. If people make this a habit, they will lose weight.
A. and it will then adjust(调整)itself by burning fewer calories each day
B. Everybody knows how much fat is inside the food they buy
C. and they also eat meals at the wrong time each day
D. Another reason is that people don’t play outside
E. One of the most important things you can do to control your weight is to eat the proper foods
F. while your friends can eat 2,500 calories per day and not gain any weight