3. Ознакомьтесь с дополнительными словами и выражениями:

rate – размер, уровень, скорость, частота, интенсивность

frame - кадр

entity ['entɪtɪ] - объект

coin - создавать неологизмы, монета , выдумывать

compound ['kɔmpaund] - целостное образование; смесь; сложное слово

4. Ответьте на вопросы, используя информацию текста:

1. What are some terms and concepts that are used in communications? 2. What is understood as information, message, data and signals? 3. How are the three units of a simple telecommunication system called? 4. What are the functions of a transmitter and a receiver? 5. What are examples of communication systems? 6. Why is telecommunication over telephone lines called point-to-point communication? 7. What does a broadcast communication system consist of?

5. Найдите в тексте слова и выражения, эквивалентные данным ниже:

Основной элемент; варьироваться по размеру; множество целых чисел; переносить данные; буквально; голосовые связки; голосовой сигнал; искажения; оптическое волокно; связанный; чувствительный.

6. Переведите на русский язык следующие словосочетания:

Power level; telecommunications systems; information transfer rate; video frame; transmission medium; usable information; orbiting satellites; radio broadcast; low-power radio receiver; microwave communications.

7. Вставьте пропущенные предлоги:

1. One way … understanding how telecommunications systems work and how they are changing is to consider a number ... essential concepts. 2. Some designations are not common … communications and are included … the table … completeness. 3. Standard prefixes used … metric units … designating different physical parameters range … size … 10²⁴ … 10^-24. 4. Telecommunication means sending and receiving information … distances. 5. The word 'telecommunication' was adapted … the French word télécommunication. 6. A simple telecommuncation system consists … three units. 7. Every human being is equipped … a basic communication system. 8. Telecommunication … telephone lines is called point-to-point communication because it is … one transmitter and one receiver.

8. Переведите предложения, обращая особое внимание на выделенные слова:

Power

1. He did everything in his power to help me. 2. They have lost the power of speech. 3. Nine is the second power of three. 4. It is necessary to disconnect the power before attempting to repair electrical equipment.

Value

1. She valued the house at $1000. 2. His invention was of high practical value. 3. What is the value of the prize?

Number

1. I gave him my number. 2. A small number of children do not play computer games. 3. I decided not to invite the guests for a number of reasons. 4. Number the pictures from one to five.

9. Подберите к следующим глаголам однокоренные существительные:

Describe, designate, introduce, transfer, equip, inform, distort, listen, measure, refer, exploit.

10. Вспомните правила образования и употребления пассивного залога.

А. Найдите в тексте пять случаев употребления Passive Voice. Переведите предложения.

Б. Преобразуйте в следующих предложениях формы действительного залога в страдательный залог:

Пример: A transmission medium carries a signal.

A signal is carried by a transmission medium.

1. To understand how telecommuncations systems work we consider a number of essential concepts. 2. We use a prefix in metric units to designate some physical parameters such as length, speed and so on. 3. The table lists standard prefixes, their symbols, and their magnitudes. 4. A message is a physical manifestation of the information which the source produces. 5. We understand signals as electromagnetic waves that we use to transport the data over a physical medium. 6. A transmitter converts information to a signal. 7. A receiver then takes the signal from the channel and converts it into usable information. 8. Today modern telecommuncations not only use telegraphs and telephones but also exploit radio systems and fiber optics.