All of us eat every day, but most of us don’t understand nutrition(营养). How much do you know about good nutrition? Are the following statements true or false?

1. People who don’t eat meat can stay healthy.

  True. As long as people eat enough milk, eggs and meat alternates(替代物), they can get enough protein.

2. Fresh vegetables cooked at home are always more nutritious than canned vegetables.

  False. The difference depends more on how vegetables are prepared than whether they are fresh or canned. Vegetables cooked in too much water can lose a large quantity of vitamins.

3. Food eaten between meals can be just as good for health as food eaten at regular meals.

  True. Nutritional value depends on what types of food you eat, not when you eat them. Eating an egg or an orange between meals can contribute to a good diet.

4. Taking extra vitamins beyond the recommended daily allowances won’t give you more energy.

  True. It’s widely believed that extra vitamins provide more energy. But taking more than the baby needs doesn’t make it function better, just as overfilling your gas tank doesn’t make your car run better.

5. Natural vitamins are better supplements(补充)for the diet than synthetic vitamins.

  False. There is no difference. A vitamin has the same properties(性质)and specific chemical structure whether made in a laboratory or taken from plant or animal parts.

6. Older people need the same amount of vitamins as younger people.

  True. Older people need the same quantity of vitamins as younger people although they need fewer calories. Certain illnesses raise the requirements for some vitamins, but that is true for the young as well as the old.

7. Food grown in poor soil is lower in vitamins than food grown in rich sold.

  False. The vitamins in our foods are made by the plants themselves. They don’t come from the soil.

However, the minerals in a plant depend on the minerals in the soil.

If you have answered these questions correctly, you can say you know much about food and nutrition by today’s standards. But remember that nutrition is a growing science and that may be aged as new information is obtained.

64. The main purpose of the passage is to     .

A．list today’s standards of some food and nutrition

B．introduce what should be eaten and what not

C．explain what is helpful to your health and what is not

D．test our nutrition IQ by judging the problems listed

65. From the surrounding words and sentences we know that the underlined phrase “contribute to” means      .

A．help to bring about                               B．take the place of            

C．make room for                                    D．turn to

66. The underlined word “synthetic” most probably means     in Chinese.

    A．不同的                   B．特别的            C．合成的                   D．天然的

For example, many people think that foods such as rice, bread and potatoes will make 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 of calories(热量).

Some people don’t like canned or frozen vegetables, because they think fresh vegetables 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.

It is widely believed extra vitamins provide more energy. But taking more than the body needs doesn’t make it function better.

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

In short, 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 mainly because__________.

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 as vegetables 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

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

For example, many people think that foods such as rice, bread and potatoes will make 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 of calories(热量).

Some people don’t like canned or frozen vegetables, because they think fresh vegetables 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.

It is widely believed extra vitamins provide more energy. But taking more than the body needs doesn’t make it function better.

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

In short, 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 mainly because__________.

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 as vegetables 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