5.Use the Imperative Mood and translate the sentences:

Turn on the radio.

Model: (to turn on) Don’t turn on the radio.

(not to turn on) the radio

1. (to define) and (to explain) the terms of this equation.

2. (to draw) a line and (to divide) it into three equal parts.

3. (not to change) the speed of the motor motion.

4. (to present) your paper in time.

5. (not to begin) your experiment now. It’s already late.

6.Use the Imperative Mood in the following sentences and translate them:

Model: Say it again (she). Let her say it again.

Don’t say it again (they).Don’t let them say it again.

1.Ask the professor about the difference between the metric and imperial systems (we).

2.Don’t solve this equation (he).We have already the answer.

3. Freeze the liquid in the tube and then measure its volume (they).

4. Illustrate my explanation with an example (she).

5. Help him in his laboratory work (I).

7. A. Translate the following sentences paying attention to the meanings of some and same:

1. These two elements have different colours but their chemical properties are the same. Some of them are very important.

2. There is some gas in these pipes. We use the same gas in both pipes.

3. The engineers of the research laboratory developed some new methods of work. The same methods are of great importance for our plant.

b. Translate the following sentences paying attention to the meanings of for:

1. The unusual phenomenon occupied the boy’s thoughts for hours.

2. For a few years Albert Einstein lived in Prague.

3. Einstein’s work on relativity was a great surprise for the scientists all over the world.

4. In 1922 Einstein got his Nobel Prize not for relativity but for a logic explanation of photo-electric effect.

5. Einstein always answered all students’ questions for there were no foolish or simple questions for him.

9. Translate the following sentences using the words and word-combinations given below:

1.А.Эйнштейн був видатним фiзиком 20 столiття.2.Вiн мав незвичайнi здiбностi до математики i фiзики.3.На протязi кiлькох рокiв Ейнштейн мешкав у Празi i викладав фiзику в унiверситетi.4.У 1905 роцi вiн зробив декiлька наукових вiдкриттiв.5.Його iдея вразила усiх вчених.6.У 1922 роцi Ейнштейн отримав Нобелiвську премiю.7.Сьогоднi кожен студент технiчного вузу вивчае теорiю вiдносностi.8.Вивчiть бiографiю Ейнштейна, i ви побачите, що вiн вiддав свое життя науцi.

To get the Nobel Prize, to make some discoveries any college student, to be a great physicist of the 20^th century, to study Einstein’s biography, to give his life to.., for a few years..,to teach physics..,to have an unusual ability to ..,to surprise all scientists

10.Read and retell:

“How are new inventions made?”

“How are new inventions that change the face of the world made?” somebody asked Einstein. ”Quite simply,” answered Einstein. ”Everybody knows that something is impossible. Then quite by chance, there happens an ignorant man who does not know it and he makes the invention”.

“Different means”

During his visit to an observatory Einstein got interested in the gigantic telescope with a mirror of 2.5 meters in diameter.

“What do you need such a big instrument for?” asked Einstein’s wife.

“We use it to study the structure of the universe”, answered the director of the observatory.

“Really?” said the lady. ”My husband usually does it on the inside of an old envelope.”

TEXT 7 B