2. Переведите предложения на русский язык, обращая внимание на герундиальный комплекс.

1. Plants are useful sources of energy thanks to their storing the sun's radiation in chemical form.

2. We know of the strength of current depending on the resistance of the circuit.

3. After their having been compressed gases will return to the original volume.

4. Plasma differs greatly from ordinary gases because of its being composed of charged particles.

5. In spite of its being called a dry cell, that cell is not really dry, everybody knows of its containing moisture.

6. Their having obtained good results at such a temperature caused a great surprise.

7. We know of their (three-phase induction motors) being successfully used in industry.

8. Descartes' and Fermat's merit consists in their having introduced the method of coordinates.

9. The amperemeter (ammeter) being used to measure the current flowing in an electric circuit is well known to each engineer.

3. Это упражнение на сравнение герундия и причастия. Переведите предложения на русский язык, предварительно определив -ing-форму.

1. Changing the resistance of the circuit, one may control current flow.

2. Changing the resistance of a circuit is one of the methods of controlling the flow of current in the circuit.

3. The electric current passing through a wire heats that wire.

4. The electric current passing through a wire, the heat developed will depend upon the amount of current.

5. Adding heat to a boiling liquid we make it change its state without changing its temperature.

6. By adding heat to a boiling liquid we make it change its state without changing its temperature.

7. A liquid being heated to the boiling point, its temperature can be raised no higher.

8. The process of transmitting energy from one body to another without doing work is called heat exchange.

9. Mechanical energy is a specific physical quantity characterizing the capacity of bodies for doing useful work.

10. They knew about our having done this work.

11. The characteristic feature of the analytic geometry is applying algebra in the study of geometry.

12. On being heated, magnetized steel will lose its magnetism because heating makes the molecules move around rapidly and expands the metal.

Сослагательное наклонение

Сослагательное наклонение выражает действие, которое рассматривается как предполагаемое, желательное или возможное при определенных условиях. Формы сослагательного наклонения переводятся на русский язык сочетанием глагола в прошедшем времени с частицей "бы" или с союзом "чтобы".

Формы сослагательного наклонения

		Синтетические		Аналитические
Present Subjunctive	Выражаемые действия относятся к настоящему или будущему времени	I, he, she We, you, they	be/ ask	─
Past Subjunctive		I, he, she We, you, they	were/asked	should, would, could, might + Simple Infinitive
Perfect Subjunctive	Выражаемые действия относятся к прошлому	I, he, she We, you, they	had been had asked	should, would, could, might + Perfect Infinitive