I. Перепишіть та письмово перекладіть українською мовою подані нижче речення; звертайте увагу на функцію інфінітива.

1. Our idea was to design a new device for automatic control.

2. To increase the productivity of labour one must use the methods we have just described.

3. To design new buildings is the work of an architect.

4. He was happy to have worked with this famous scientist.

5. The problem to be solved is of great importance for our research.

II. Перепишіть та письмово перекладіть українською мовою подані нижче речення. Пам'ятайте, що суб'єктний та об'єктний інфінітивні звороти відповідають підрядним реченням.

1. The sun and stars are proved to be able to produce great quantities of energy by means of certain nuclear reactions.

2. We know the wave theory of light to be first proposed by the English physicist Robert Hooke in 1665.

3. The properties of the new material are known to be determined next month.

4. The crew is reported to have carried out a great deal of scientific experiments.

5. Rutherford suggested the positive charge of electricity to be concentrated in the nucleus of the atom.

III. Перепишіть та письмово перекладіть українською мовою подані нижче складні речення. Зверніть увагу на переклад умовних речень.

1. If the service life of the instrument had been prolonged, the economic effect would have been increased many times.

2. Automation will not be used by production if it does not bring profit.

3. It would be impossible to raise the output without installing the new equipment.

4. We should certainly inform you about the opening of the session if you gave us your address.

IV. Перепишіть та письмово перекладіть текст.

Cybernetics applied to space.

Cybernetics is the study of control and communication mechanisms in machines and animals. It covers all automatic control devices, selectors, relays, computers and robots, and also the corresponding physiological mechanisms such as those of automatic balance and reflex action. The application of cybernetics to electronic computers is known to be leading to a better understanding of the working of the brain, and conversely a deeper knowledge of the "human mechanism" is expected to lead to the development of machines of almost human capability. It is known that Russian scientists have been making a close study of the implications of this work in astronautics and the results may be applied to the problems of spacecraft control and the remote analysis of the planets.

Cybernetics has brought about a revolution in the design of machines. By revealing the profound analogy between the work of the computer and the work of the control system of the living organism, cybernetics has brought a new approach to investigations in biology and medicine.

Cybernetics has been of great assistance in the pre-flight training of cosmonauts. Besides making it possible to design various automatic simulators, the science has given experts in space medicine methods for the exact analysis requirement which must be met by the spaceship, and it has also been possible to select the people best fitted to travel into space.

It is quite obvious that much greater accuracy is required in controlling the course of a rocket flight to other planets than that required for launching an artificial Earth satellite.