Перепишите предложения, определите в каждом из них модальный глагол или его эквивалент. Письменно переведите предложения на родной язык.

1. Theorizing should determine what kinds of tests will be needed.

2. If we are to demonstrate this operation, it will have to be done in some other way.

3. A few comments may help to make these postulates more meaningful.

4. We can consider what statistical operations may be applied to these measurements.

5. We first need to understand the theory.

5. Прочитайте и переведите текст:

DRUGS

Every human society knows some drugs that change people’s state of consciousness. Drugs can be everything from cigarettes and alcohol to heroin, opium, LSD and amphetamines. Drugs which can influence our state of consciousness are psychoactive drugs. All those drugs influence the nervous system and modify perception. Users of drugs may develop tolerance, psychological dependence, addiction.

We say that a user developed tolerance when he needs more and more drug to produce effect.

When users stop using a drug they feel great pain. When the body becomes physically dependent on a drug, this condition is called addiction. The psychological need to take a drug is called psychological dependence.

Some signs show that a person is taking drugs, for example, sudden changes of mood, aggression, loss of interest in hobbies or friends, loss of appetite, insomnia.

The most widely used drug in our society is alcohol. Alcohol is the substance most abused by adolescents and college students. Both genetic (heredity) and environmental factors can influence alcoholism.

What pushes people to take drugs? There are many reasons. Some people hope that they help relax and cope with the stress and problems. Some people have pressures at school, work, they feel frightened or frustrated. Others take drugs out of curiosity but often become addicted. Many people think that drugs are the way-out. However they don’t realize how dangerous they are. They destroy personality, lead to serious diseases, psychological disorders and death. Many drug addicts become criminals.

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