Английский язык. Громовая И.И - 26 стр.

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24
2. Модальные глаголы и их эквиваленты:
А) модальные глаголы can (could), may (might), выражающие воз-
можность, и эквивалент модального глагола can – to be able;
Б) модальный глагол must, выражающий долженствование, и его
эквиваленты to be to, to have to;
В) модальные глаголы should, ought (следует), needn’t (нет необ-
ходимости);
3. Простые неличные формы глагола Participle I (Present Participle)
и Participle II (Past Participle) в функции определения и обстоятель-
ства.
После изучения всего указанного выше материала можно при-
ступить к выполнению задания.
ТЕКСТЫ ДЛЯ ИЗУЧАЮЩЕГО ЧТЕНИЯ, ПЕРЕВОДА И
ЗАКРЕПЛЕНИЯ ГРАММАТИКИ
Text 2 (A). Fundamentals of Radio
Radio transmission and reception was perhaps one of the earliest
applications of electronics, the application that made the greatest impact
on society. Surprisingly enough, we can use radio, predict its properties
and design circuits that work very efficiently, but we know little about the
real nature of radio. Ask an electronic engineer what radio is, and the
answer will be a confident “electromagnetic waves”” Ask a physicist what
electromagnetic waves are, and he will tell you that really we do not know.
We do know that electromagnetic radiation is a form of energy, and that
it is propagated as waves. The model became more of a model and less
like reality when we discover that radio travels through vacuum. One has
to understand how can there be waves in a vacuum. Perhaps in the future,
theoretical physics will give us an answer.
Possibly the hardest concept to understand radio is the way in which
circuits can broadcast or communicate radio waves.
As to communication it is a process of conveying intelligence from one
point to another by radio.
At the start, and also at the end of the communication process radio
technique is identical with that of wire telephony and telegraphy. Radio
differs from other methods of communication in the means used to connect
the transmitting and receiving points.

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