1)Одновременность с действием, выраженным глаголом – сказуемым

2)Инфинитив имеет пассивное значение.

Переведите предложения на русский язык.

1. To avoid this limitation, companies also produce DVD rewriteable devices. 2. DVD –ROM can store a large amount of multimedia software and complete full screen Hollywood movies in different languages. 3. At present researchers are looking for the most suitable chemical compounds to be used as data storages and trying to determine optimum recording conditions. 4. Lasers have been successfully employed to record information on and read it off. 5. Gigawatt lasers are not off-the-shelf items; there is no doubt they could be built if the need were strong enough. 6. Recent spectacular breakthroughs in superconductors may be compared with the physics discoveries that led to electronics and nuclear power.

Задание 3. Определите функции инфинитива и переведите предложения на русский язык.

1. To develop the supercomputer, highly developed electronics and new materials were required. 2. One of the best ways to keep the car speed steady is to use a computer. 3. Some materials with new useful properties may be produced in space. 4. A special electronic device signals the engine to stop. 5. To design, construct and operate a laser system is a great technological achievement. 6. A very interesting problem is to produce a practically limitless source of energy. 7. There are projects to use lasers for long distance communication. 8. To combine laser and thermonuclear reaction is a very interesting problem for the scientists in many countries. 9. To conduct physical experiments with laser beams, Russian physicists have developed large laser installations.

Задание 4. Вставьте вместо пропусков частицу toперед инфинитивом, где необходимо:

1. How could electricity ___ be used ___ send a message? 2. For two years Tom Watson and Alexander Bell were working together ___ build a machine that people could ___ use ___ talk to one another over long distances. 3. The camera-tube will ___ allow the user ___ switch from a wide view of the room to the face of the person speaking. 4. There is a mirror attachment, which allows the camera ___ scan documents, which may be lying on the table. 5. Satellites help ___ minimize all the difficulties that may appear. 6. One CD-ROM disk can ___ replace 300,000 pages of text – about 500 floppies, which represents a lot of savings in databases. 7. Superconductors are extremely difficult ___ fabricate into wires. 8. Superconductor ceramics are substances which can ___ transmit electric currents with no loss of energy at temperatures much higher than conventional superconductors. 9. If a current is induced by a magnetic field in a ring of superconducting material, it will ___ continue ___ circulate when the magnetic field is removed.

Задание 5. Раскройте скобки, поставив глагол в правильную форму.

1. He seems (to read) a lot. 2. He seems (to read) now. 3. He seems (to read) since morning. 4. He seems (to read) all the books in the library. 5. We expect (to be) back in two days. 6. He expected (to help) by the teacher. 7. The children seem (to play) since morning. 8. I am glad (to do) all the homework yesterday. 9. I am sorry (to break) your pen. 10. I want (to take) you to the concert. 11. I want (to take) to the concert by my father.

Задание 6. Переведите предложения на русский язык, пользуясь моделью:

Smb + is + known + infinitive

Smth reported

expected

Известно (сообщается, ожидают), что …

1. Scientists are reported to be already working on Artificial Intelligence and the next generation of computers is likely to understand human languages. 2. Now plenty of materials are known to become superconductors at low temperature. 3. Recently some ceramic materials have been found to be superconductors. 4. The International Space Station is expected to be a permanent off-planet extension of human civilization. 5. Machine code is known to contain the 1s and 0s –binary code- that are processed by the CPU.

Задание 7. Переведите предложения на русский язык, пользуясь моделью:

smb + is + sure + infinitive

smth certain

likely

• Очевидно, что…

• конечно…

• Вероятно, что…

1. This is likely to continue until theorists give a fuller explanation of how superconductivity is produced in new materials. 2. Scientists are sure to find the answer to a very important question: could the electricity be used to develop a fast, efficient system of long-distance communication. 3. Electricity is certain to travel instantly over a very long piece of wire. 4. The Atlantic Telegraph Company was certain to try to lay a cable on the bottom of the Atlantic Ocean in 1856.

Здание 8. Переведите предложения на русский язык, пользуясь моделью:

smb	seem
smth	appear
	happen	+ infinitive
	prove
	turn out

• Кажется, что…

• Случается, что…

• Оказывается, что…

1. Scientists and researchers appeared to take a whole lifetime to make a few thousand calculations, whereas for a modern computer this task is a matter of a few seconds. 2. Light beams turn out to be faster travelling in parallel lines. 3. Computers happened to be able to control machines at factories. 4. Computers turn out to help us to deal with the knowledge explosion in many ways. 5. The artificial quartz crystals appear to be used in digital watches. 6. A laser printer seems to be an output device to print information. 7. This model is proved to be useful in understanding electromagnetic properties of superconductors.

Задание 9. Переведите предложения на русский язык, обращая внимание на употребление “сложного подлежащего”:

1. The first pocketsize colour television sets are reported to be developed. 2. Today’s aircraft is expected to be replaced by a new model of hypersonic aircraft in a few years. 3. A method for recording information on crystal by means of a laser is known to have been developed by a Russian researcher. 4. Intensive research on optical electronic computer is said to be going on in a number of US companies. 5. The annual output of personal computers is expected to reach millions in the short-term future. 6. The laser is known to be a device producing an intensive beam of light by amplifying radiation. 7. Optical technology has been found to be inexpensive. 8. The optical equivalent of a transistor is reported to have been produced. 9. Our present day life seems to be quite impossible without telephone, radio and television.

Задание 10. Определите, в какой части предложения содержится ошибка.

1. A new electronic device installed in the car panel will calculate how

ab c

far one can to drive on the fuel left.

d

2. Aircraft designers are interested in all kinds of new materials that are strong

a b

enough be used for high-speed airliners.

c d

3. Noise and vibration are also the problems to be face by designers of

a b c

hypersonic crafts.

d

4. Japanese designers believe a new ceramic engine to replaced the conventional

a b c d

one.

5. Engineers suppose a new “night vision” system to enabled drivers to see

a b c

better in the dark.

d