III. Прочитайте предложения, перепишите их, обращая внимание на выделенное местоимение it, переведите предложения на русский язык.

Example: Radio-electronics has made it possible to test various equipment. (формальное дополнение)- Радио электроника дала возможность испытывать различное оборудование.

1. I like this camera, but it is very expensive.

2. Such systems made it possible to control a great number of small instruments or devices by using standard components programmed to do a specific job.

3. It seemed to us that the computer was out of order.

4. It is evident that electricity will be the energy of the future.

5. It is the system known as remote control

IV. Прочитайте предложения, перепишите их, обращая внимание на выделенные слова ones, one, переведите предложения на русский язык.

Example: One should pay more attention to the use of artificial satellites for communication. - Следует уделять больше внимания применению искусственных спутников для связи.

1. One of the wonderful applicatirus of electronics is radar?

2. Working with this substance one should be very careful.

3. The new technologies that are being developed must be connected with traditional ones.

4. Today onу of the most important problems is the air pollution of big cities.

5. One can easily, understand why the profession of an engineer red uires a special training.

V. Перепишите предложения, употребив глаголы в правильной видовременной форме, переведите предложения на русский язык. Обратите внимание на функции глагола to have, to do, to be в предложениях.

Example: Many years (to pass) since the day when radio was invented.

Many years have passed since the day when the radio was invented.

Прошло много лет с тех пор, как было изобретено радио.

1. A good conductor (to have) many free electrons.

2. The duration of the pulse (to have to) be approximately a thousand-millionth of a second.

3. The Internet (to be) composed of a large number of smaller interconnected networks called internets.

4. They (to be) to prepare everything for the experiment

5. Scientists (to do) a lot of research recently.

6. (to do) semiconductors conduct electric current worse than metals?

VI. Перепишите предложения, подчеркните инфинитив. Переведите предложения на русский язык.

Example: To solve the problem is very important. - Решить эту проблему очень важно.

The only way to solve the problem was to change the algorithm. - Единственное, что можно было сделать в этой ситуации – изменить алгоритм.

1. To develop the supercomputer highly developed electronics and new materials were required.

2. The problems to be solved are of great importance.

3. To make this experiment you should use the new device.

4. The teacher gave us the tasks to do for the next lesson.

5. They seem to have made a mistake in their measurements.

6. I heard him leave the house early this morning.

VII. Перепишите предложения, обращая внимание на субъектный инфинитивный оборот. Переведите предложения на русский язык.

Example: It is known that the atom emits rays of different length. – The atom is known to emit rays of different length. Известно, что атом испускает лучи разной длины.

1. An optical equivalent of a transistor is reported to have been produced in the result of an intensive research on optical electronic computers.

2. Optical technology is said to be cost-effective and versatile.

3. The chemicals were thought to convey important information to the brain.

4. Was assumed to be poisonous.

5. They seem to know all about it.

6. He appeared to haven’t heard what had been said.

7. People seem to realize the potential danger of some scientific discoveries.

8. All of us are certain to know very well what environmental pollution is.