VIII. Choose the words out of the right column to make up word-combinations.

1. periodic	A. consideration
2. bold	B. a metal
3. similar	C. elements
4. selecting	D. suppositions
5. good	E. system
6. original	F. law
7. to remove	G. properties
8. to take into	H. conductor
9. chemical	I. shape
10. definite	J. a load

7. Mendeleyev's system is called the Periodic Law.

Task IX. Underline the suffixes and translate the words

Construction, constructional, protection, radiation, harmful, atomic, dangerous, probably, repeatedlt, simply, production, technical, ice-breaker

Task X. Build words using the following models. Translate the words.

Un+adjective un+verb+ed in+adjective pre+adjective dis+verb

1. pleasant 1. to dress 1. correct 1. revolutionary 1. to like

2. necessary 2. to close 2. active 2. historic 2. to cover

3. happy 3. to cover 3. complete 3. fabricated 3. to place

Revision exercises

Task XI. Translate the following sentences into Ukrainian paying attention to the Gerund.

1. Discovering the atomic structure was of great value for further research in Nuclear physics. 2. We know of the Curies having discovered some new radioactive elements. 3. The experiments resulted in discovering the process of fission of atoms. 4. The scientists spoke about the necessity of discovering new inexhaustible sources of energy for space vehicles. 5. After discovering protons in 1911 several investigations tried the structure of the atom.

Task XII. Translate the following sentences into Ukrainian paying attention to the Gerund.

1. The worker spoke of having shown the new devices to the engineer. 2. The worker insisted on his being provided with a protective suit. 3.1 remembered having mentioned about the works of this scientist. 4. We knew of Comrade Novikov's having been informed about safety measures against radiation. 5. The scientist spoke new ultrasonic instruments being used for welding instead of conventional ones.

Task XIII. Translate the following sentences into Ukrainian paying attention to the functions of the Gerund and the Participle I.

1. Using a beam of electronics on place of the usual beam of light solved the problem of studying microorganisms. 2. Using a beam of electrons in place of the usual beam of light scientists built a microscope with great magnifying power. 3. Studying the properties of electrons atomic physicists solved the problem of constructing a very powerful microscope. 4. Studying the properties of electrons gave the possibility of constructing a very powerful microscope. 5. Constructing an electron microscope became possible after numerous experiments of atomic physicists. 6. Constructing an electron microscope scientists succeded in bringing to view the fine structure of materials.

Task XIV. Choose the words with the similar meanings.

Single, come, involve, have, use, essential, broadly, disseminate, due to, one, arrive, vacant, for example, because of, since, adjacent, some, spread, possess, important, widely, include, employ, empty, for, several, for instance, side by side.

Task XV. Translate the following sentences into Ukrainian paying attention to the different meaning of the Preposition „for"

1. Our young researchers have all educational facilities for their scientific work.

2. For a number of years my brother worked as a factory worker. 3. We generate electrical power for industrial purposes as well as for every-day-life needs. 4. The engineers and workers of our mill look for new ways to raise the labor productivity in all shops of the enterprise. 5. The professor's assistant listened to the student's report attentively, for it contained new data of great interest. 6. My friend leaves Moscow for Kyiv. 7. We could not translate the text, for it contained too many new words.

Task XVI. Translate the following word-combinations into Ukrainian.

To discuss reactions, to light match, to agitate the molecules, to combine with oxygen, to be composed of atoms, to break into fragments, to control the rate, to use catalysts, to increase the velocity;

It is generally known, it is very important, it is gravelly accelerated, it is easily combined, it is hardly probable, it is entirely stopped;

The temperature is increased, the reaction is started, the match is lighted, the velocity is slowed down, the rate is controlled, the change is accelerated.

Task XVII. Render from English into Ukrainian and give your title fort he text.

Radio is a miracle of ages. Aladdin's lamp, the Magic Carpet seem insignificant compared to the radio.

By radio the human voice may be transmitted around the earth in less time than it takes to say the word „radio".

Radio is playing an ever increasing part in human life of land, on sea and in the air. It makes possible much more than simply communicating news, music, etc., and it also plays a very important part in navigation.

***Task XVIII. Topic for discussion.

1. Consider some characteristics of metals and reasons why engineer must take them into account.

2. List mechanical properties, which determine their usefulness in the industries.

3. Speak on the topic "The Atom and its nucleus"