All of us eat every day, but most of us don't understand nutrition(营养). We often

Allof us eat every day, but most of us don't understand nutrition(营养). We often make mistakes in talkingabout good diet.

Forexample, many people think that foods such as rice, bread and potatoes willmake one grow fat. In fact, these foods are very good to one’s health.They are good sources of many vitamins. And in comparison with steak(牛排) and beef, they contain less amount ofcalories(热量).

Somepeople don’t like canned or frozen vegetables, because they think freshvegetables cooked at home are always better. This is again wrong. In fact,whether the vegetables are good or not depends more on how they are prepared.Overcooking, for example, destroys many good qualities of vegetables.Vegetables cooked in too much water can lose a large amount of vitamins.

Itis widely believed extra vitamins provide more energy. But taking more than thebody needs doesn’t make it function better.

Itis also wrong to say that vegetables grown in poor, worn-out soil are lower invitamins than vegetables grown in rich soil. The vitamins in our foods are inthe plants themselves. They don’t come from the soil. However, theminerals(矿物质) in a plant depend on theminerals in the soil.

Inshort, there are many false ideas about nutrition. We need to correct them.

1.This passage is mainly about __________.

A.nutrition      B.vitamins 

C.vegetables  D.health

2.Rice, bread and potatoes do good to people’s health mainlybecause__________.

A.they make people fat

B.there are a lot of vitamins in them

C.they contain less amount of calories compared with steak and beef

D.both B and C

3.Which of the following is true according to the passage?

A.Many people know almost everything about nutrition.

B.Food such as rice, bread and potatoes make people fat.

C.Vegetables grown in poor worn-out soil may have the same amount of vitamins asvegetables grown in rich soil.

D.Extra vitamins provide less energy.

4.The point of the passage is that__________.

A.the minerals in a plant depend on the minerals in the soil

B.people make mistakes when talking about good diet

C.taking more vitamins than the body needs doesn’t make it function better

D.vegetables cooked in too much water can lose a large amount of vitamins

试题答案

答案：ADCB