I. Rewrite the following sentences, determine in each vidovremennyh shape-predicate verbs. Turn suggestions on the Russian language.
1. In modem aviation greater and greater speeds are being attained.
2. Young specialist was introduced to the professor.
3. The material properties are affected by solar radiation.
4. Scientific and engineering progress opens up wide prospects before mankind.
II. Rewrite the following sentences and translate them into Russian, paying attention to the different meanings of the words it, that, one.
1. It is necessary to obtain sufficient data in order to make an accurate map of an area.
2. He that can not obey can not command.
3. One should be careful when working with chemical substances.
III. Rewrite the following sentences and translate them into Russian, paying attention to the different meanings of verbs to be, to have, to do.
1. The weight of the cargo does not have to be large.
2. We shall have to take this possibility into account.
3. We have changed the design of this machine.
4. The speed of electrons is almost the same as that of light.
IV. Rewrite the following sentences and translate them into Russian, paying attention to conjunctionless submission.
1. We know radio and radar systems play a very important role at any airport.
2. The manager is known by the company he keeps.
V. Rewrite the following sentences and translate them into Russian, paying attention to the function of the infinitive in the sentence.
1. A computer producing company announced a computer small enough to set on a desktop and powerful enough to support high level language programming.
2. To meet all the demands of the customer requires time.
3. Houses are built to live in, and not only to look at.
VI. Read and orally translate the text. Rewrite and translate the writing of the 1st, 2nd and 3rd paragraphs.
1. Laser, one of the most sophisticated inventions of man, produces an intensive light beam of a very pure single colour. One of the mankinds oldest dreams of technology to provide a light beam intensive enough to vaporize the hardest and most heat-resistant materials came true. Laser can indeed make lead run like water, or, when focused, it can vaporize any substance on earth. Laser is becoming one of the main technological tools nowadays.
2. The applications of laser in industry and science are so many and so varied as to suggest magic. Scientists in many countries are working at a very interesting problem: combining the two big technological discoveries of the second half of the 20-th century: laser and thermonuclear reaction, to produce a practically inexhaustible source of energy. There also exists an idea to use laser for solving the problem of controlled thermonuclear reaction.
3. The lasers most important potential may be its use in communication. The intensity of a laser can be rapidly changed to encode very complex signals. One laser beam, vibrating a billion times faster than ordinary radio waves, could transmit the entire text of the Encyclopedia Britannica in just a fraction of a second.
VII. Read the question in the text. From the answers indicate the number of proposals, containing the correct answer to the question:
What is the aim of placing lasers aboard Earth satellites nearer to the Sun?