A篇
When reading a food’s label(标签), start at the top. The package(包装) may look small, but be careful to determine how many servings it contains. Compare the serving size with how much you are planning to eat.
Limit This! These are things you should limit in your diet. American diet includes too much fat, cholesterol(胆固醇), and sodium(钠). They are linked to health problems when eaten too much.
Eat This! Dietary fiber is a nutrient(营养物质) that most Americans do not eat enough of each day. Eating foods rich in fiber is good for us to improved health and lowered risk of diseases.
Calories(卡路里) tell you how much energy you get from a serving of food. People who are more active need more calories. People who take part in less physical activity need fewer calories.
These percentages are based on a diet of 2000 calories per day. Your are supposed to take above or below this average(平均数); it is determined by your height, weight, and level of physical activity.
Nutrients, even fat and sugar, are important, but some are needed in small quantities. A general rule: a % daily value of 5% or less is considered low, while 20% or more is considered high.
If your are not sure about the descriptions that a company makes about its products, the Food and Drug Administration has written the following guidelines(指南) for producers to use when describing food:
Low fat: Three grams or less of fat per serving
Healthy: A food low in fat, cholesterol, and sodium and containing at least 10% of the daily value for Vitamin A, Vitamin C, iron, protein, or fiber
Excellent source: 20% or more of the daily value for a given nutrient per serving
21. We know from the text that eating enough fiber____.
A. helps cure diseases B. is good for our health
C. leads to health problems D. leads to weight gain
22. If you do more physical activity, you should _____.
A. take in more calories B. burn off more energy
C. take in large amount of fat D. eat no more than 2000 calories
23. What type of writing is this text？
A. A health report B. a research plan
C. A practical guide. D. A advertisement.
