3. Translate the sentences into English:

1. Перша сонячна електростанція почала працювати в Туркменістані.

2. За останній мільйон років існування Землі було накопичено меньше, ніж соту частину енергії, що випромінюється сонцем щорічно.

3. Використання установок сонячної енергії є доцільним там, де важко або неможливо організувати централізоване постачання енергії, як наприклад, в пустелі Кара-Кум.

4. Було необхідно зробити установки, які б працювали автоматично і не потребували б обслуговування.

5. Станція може витягнути 15 кубічних метрів води щоденно з криниці глибиною 20 метрів.

4. Find the nouns corresponding to the following words in the text, translate them into Ukrainian:

To receive, to consume, to radiate, to use, to organize, to build, to design, to require, to raise, to freshen, to turn.

5. Decide, whether the statements below are true or false:

1. The world’s first photoelectric solar power station has been put into operation in Ukraine.

2. Over the last million years of its existence the Earth has accumulated more than a hundredth part of the energy radiated by the sun yearly.

3. To use solar energy is expedient only where it is easy or possible to organize a centralized power supply.

4. In outer space, phototransformers had proved their worth, but the thing was to see how long they would operate on the Earth.

5. It was necessary to design installations which would operate automatically and require no servicing in studying their electric power and operating characteristics.

6. These tasks were solved by a team of welders.

7. The station can raise 5 cubic metres of water a day from a fifteen metre deep well.

8. The rated capacity of the solar freshener is 10 cubic metres a day.

6. Answer the following questions:

1. Where has the first photoelectric solar power station been put into operation?

2. Where is it efficient (expedient) to use solar energy installations?

3. What kind of installations was it necessary to design?

4. What did scientists and engineers build?

5. How much water a day can the station raise from a well?

6. What is the rated capacity of the solar freshener?

7. How does the station operate?

7. Write the following sentences in the Future Simple:

1. The energy receiver transforms the electric energy to other forms of energy: radiant, thermal, mechanical and so on.

2. The electromotive force of the power source causes the flow of electric current in a circuit.

3. The power source together with the conductors and receiver connected to it forms a closed loop, along which an electric current flows.

4. The direct cause of flow of electric current in a circuit is electromotive force of the power source.

5. The electronic proportional control circuit requires more equipment than the electric one.

6. One of the most important characteristics of this device is its high accuracy.

7. One cannot do this work without using a computer for very accurate calculations.

8. Translate the verbs in brackets into English using them in the proper tense-form:

1. I (прийду) home at 6 o’clock.

2. When I (прийду) home, I’ll call you.

3. I (побачу) Tom tomorrow.

4. As soon as I (побачу) Tom, I’ll tell him about it.

5. He (не піде) to the library tonight.

6. If he (не піде) to the library, he’ll stay at home.