II. Прочитайте предложения, перепишите их, выделив указательные местоимения. Переведите письменно предложения на русский язык.

Example: We know that a computer is a complex electronic device. – Мы знаем, что вычислительная машина является сложным электронным устройством.

1. The work of a university or college graduate is more efficient than that of a specialist with secondary education.

2. The first solar battery operated on semiconductor crystals similar to those used in transistors.

3. Broadcast radio and cellular radio telephones are examples of devices that create signals by modulating radio waves.

4. These two metal sections are then bolted together to make one.

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

Example: We find it necessary to repeat the experiment. (формальное дополнение) – Мы считаем необходимым повторить этот эксперимент.

1. This is a small car, but it has a powerful engine.

2. Electronics makes it possible to raise industrial automation to a higher level.

3. It is a new subject; we shall study it for two years.

4. It is necessary to carry out this experiment.

5. It was Einstein who provided a new conception of time, space and gravitation.

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

Example: One should be very careful. – Нужно быть очень осторожным.

1. Silicon is one of the plentiful elements in the world.

2. One can easily understand why the profession of an engineer requires a special college training.

3. Only time will tell if the decisions we have taken are the correct ones.

4. Our laboratory equipment was much worse than the new one.

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

Example: This material (to have) many valuable qualities. – This material has many valuable qualities. – Этот материал имеет много ценных свойств.

1. The first television invention that (to have) practical consequences was the “electrical telescope”.

2. Some materials with useful qualities (to have) to be sent by ship in a week.

3. For some time it (to be) possible to conduct meetings by video with colleagues across town or across the world.

4. One of the most interesting developments in telecommunication (to be) in the rapid progress of optical communication.

5. With recent advances in technology, we can (to do) things we couldn’t have dreamed of 10 years ago.

6. What (to do) you do to get such high amplification of the signal?

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

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

1. To prove this law experimentally is very difficult.

2. In the next few years laser will become one of the main technological tools.

3. I regret to notify you that the model you want is out of stock.

4. Signals to be measured must be strong enough.