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. These parts come from Japan, but we put them together here in Italy.

2. The electrical qualities of semiconductors lie half-way between those of insulators and conduction.

3. Advanced phones with keyboards and small screens are now in development that can access the Internet and send and receive e-mail.

4. The price of a colour TV set was still eight times as much as that of a black-and-white receiver.

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. The term “engineering” is used in many specialties; it has many meanings.

2. He thinks it important to begin the experiment under working conditions.

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

4. It is the system known as a remote control.

5. It is the gravitation that makes the satellites move round the Earth.

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. I know only one solution of this problem.

2. The second satellite was launched about a month after the first one.

3. The floods destroyed some smaller bridges, but left the main ones untouched.

4. One can easily regulate the speed of this machine.

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. He (to have) to demonstrate a new machine tomorrow.

2. The table of elements (to have) gaps, but Mendeleev predicted that they would be filled by elements not yet discovered.

3. Steps (to be) to be taken to purify the substance.

4. The Internet (to be) based on the concept of a client-server relationship between computers, also called a client.

5. Semiconductor devices let electric current pass through them only in one direction and (to do) conduct it at all in the other.

6. I (to do) a huge amount yesterday. I finished the report, I ordered some new textbooks.

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 make this experiment is very important.

2. There is no doubt that in time scientists will realize some new projects.

3. To know physics well you must study hard.

4. Do you know how to use the machine or would you like me to show you?