Используйте правильную форму прошедшего простой пассивный или настоящего совершенного пассивного?

Английский язык | 10 - 11 классы

Используйте правильную форму прошедшего простой пассивный или настоящего совершенного пассивного.

The radio.

(invent)at the beginning of the 20th century .

In the First World War , radios .

(use)to communicate with soldiers.

Since the 1960s, many radio signals.

(send)into outer spaces.

So far, no answers.

(receive)from other planets.

It's possible that the signals have arrived on other planets, but the messages .

(not understand ).

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Ответы (1)
Taniushkatitov1 7 сент. 2021 г., 17:46:05

The

radio (was invented) at the beginning of the 20th century.

In the First

World War, radios (were used) to communicate with soldiers.

Since the

1960s, many radio signals (have been sent) into outer spaces.

So far, no answers (have been received) from other planets.

It's possible that the

signals have arrived on other planets, but the messages (were not

understood).

1234567890701 6 мая 2021 г., 16:06:22 | 10 - 11 классы

During the test signals(to send) along the circuit?

During the test signals(to send) along the circuit.

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Задать 10 вопросов к тексту as it is known the theory of radio receiving devices was worked out by the Russian scientist V?

Задать 10 вопросов к тексту as it is known the theory of radio receiving devices was worked out by the Russian scientist V.

Siforov.

But it is A.

Popov who invented and demonstrated the first radio receiving set.

Since that time radio devices have been improving and perfecting.

The receiver performs the function of converting the current in the receiving antenna into the intelligence contained in the transmission.

The main parameters of radio receivers are sensitivity, selectivity and fidelity.

Sensitivity is a measure of the receiver's ability to receive weak signals, as it is known that the farther an electromagnetic wave travels, the weaker is its energy.

Selectivity is the ability of the receiver to reject undesirable signals.

Fidelity is a measure of the receiver's ability to reproduce clearly audio - frequency currents, which are in accordance with the modulation envelope of the received signals.

However simple the radio receiver may be, it includes an antenna, an input tuning circuit, a detector and a pair of earphones.

The principle of operation of the radio receiver is not very difficult understand.

The electromotive force is impressed upon the receiving antenna and produces a current, this current is a reproduction of the current of the transmitting antenna.

There are various types of receivers, communication and broadcast receivers being the principal types of them.

Communication receivers are used in radio telephone and telegraph service, broadcast receivers finding application for the reception of sound and visual programms.

Wherever radio receivers were applied, they must meet an important requirement as reliability in operation.

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Is there life on other planets?

The planets in the solar system all go round the Sun.

There are nine planets, but our planet, the Earth, is the only one with living things.

We now know that the conditions on the other planets are not suitable for life.

Mercury, for example, is closer to the Sun than the Earth is.

It is too not.

Other planets which are further from the sun are too coold.

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Fill in the spaces

Complete the text with the words in the box.

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1. Вставьте утвердительную, вопросительную или отрицательную форму глагола 'have (got)' в соответствующем времени?

1. Вставьте утвердительную, вопросительную или отрицательную форму глагола 'have (got)' в соответствующем времени.

I usually .

A lot of time in the evening.

2. Закончите предложения с помощью конструкции 'there + to be' в настоящем, прошедшем или будущем временах.

Используйте только полные формы.

'How many planets .

In the solar system?

' '. eight planets in the solar system.

'

3. Заполните пропуски правильными формами глаголов.

Образец 1 : John .

Music now.

(listen to)

John is listening to music now.

Образец 2 : I .

Lectures at the moment.

(not have)

I am not having lectures at the moment.

My grandfather .

A newspaper at the moment.

(read).

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They will use the radio to announce the winners of the competition В пассивный залог?

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Раскройте скобки, поставив нужную форму глагола в пассивном залоге?

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The operation of the turbine (not to influence) by outer factors in the future.

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In the 18th century, the castle (guard) by a hundred soldiers?

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Вопрос Используйте правильную форму прошедшего простой пассивный или настоящего совершенного пассивного?, расположенный на этой странице сайта, относится к категории Английский язык и соответствует программе для 10 - 11 классов. Если ответ не удовлетворяет в полной мере, найдите с помощью автоматического поиска похожие вопросы, из этой же категории, или сформулируйте вопрос по-своему. Для этого ключевые фразы введите в строку поиска, нажав на кнопку, расположенную вверху страницы. Воспользуйтесь также подсказками посетителей, оставившими комментарии под вопросом.