1. Read the article again. Write t (true), f (false) or ? (don’t know) in the boxes next to these statements.

Among all fats monounsaturated fats are considered to be the most useful for health.
There are about twenty essential fatty acids.
Vitamins are organic substances that are needed in tiny quantities and do not supply our body with energy.
All vitamins needed by our body are either fat or water soluble.
The deficiency of both vitamins and minerals in the body can bring harm to our health.
When a person is working and sweating hard he/she loses about one liter or water a day.
When fiber enters the digestive system it breaks into its parts: cellulose, hemicelluloses, pectin.

2. Read the article carefully and answer these questions according to the information in the text.

1. What is the difference between two kinds of fats? Give the examples of foods that contain each kind.

2. What happens with fat once it enters the digestive system?

3. Why are fats important for our organism?

4. What health problems can the lack of certain vitamins lead to? (in your answer try to give both names of each vitamin)

5. What minerals does our body need? And what for?

6. How does our body lose water? How much water do we need to satisfy our daily needs? In what form can we take in water?

7. What are the sources of fibers?

Language Development

!The verbs can, could, may, might, will, would, shall, should, must and ought are called 'modal auxiliary verbs' and used before the infinitives of other verbs.

a) They have no -s in the third person singular. - She may know well this subject.

b) Questions, negatives, tags and short answers are made without do.

- Can you read this food label? - Yes, I can.

c) After them we use the infinitive without to of other verbs (Ought to is an exception).

! Most of the meanings of modal verbs can be divided into two groups. One is to do with degrees of certainty; the other is to do with obligation, freedom to act and similar ideas.

I. Modal verbs can express various degrees of certainty about facts, situations or events.

a) complete certainty (positive or negative): shall, will, must, can't

I shall be away tomorrow. There's the phone. That'll be Tony.

It won't rain this evening. You must be tired. That can't be John – he's in Dublin.

b) probability (deduction; saying that something is logical or normal): should, ought to

She should/ought to be here soon. It shouldn't/oughtn't to be difficult to get there.

c) possibility (talking about the chances that something is true or will happen): may

The water may not be warm enough to swim.

We may be buying a new house.

d) weak possibility: might, could

I might see you again – who knows? She could be slim one day.