Контрольное задание №1 Вариант 1

I. Перепишите следующие упражнения. Определите по грамматическим признакам, какой частью речи являются слова, оформленные окончанием –s и какую функцию это окончание выполняет, т.е. служит ли оно:

а) показателем 3-го лица единственного лица глагола в Present Indefinite;

б) признаком множественного числа имени существительного;

в) показателем притяжательного падежа имени существительного.

Переведите предложения на русский язык.

1. This scientist works with the modern equipment.

2. Student’s task is to choose the right answer.

3. Plastic materials are used for home construction.

II. Перепишите следующие предложения и переведите их, обращая внимание на особенности перевода на русский язык определений, выраженных именем существительным.

1. Automatic power plants are modern installations.

2. The local system failures cannot be avoided.

3. Several St. Petersburg universities use modern ways of education.

III. Перепишите следующие предложения, содержащие разные формы сравнения, и переведите их на русский язык.

1. The most terrible disaster of nowadays is terrorism.

2. The smaller the particles the more freely do they move.

3. Your earliest ideas about the force were important for our article.

IV. Перепишите и письменно переведите предложения на русский язык, обращая внимание на перевод определённых и отрицательных местоимений.

1. An electric current may be produced in some varieties of ways.

2. Any body when heated to a certain temperature becomes a source of light.

3. No electromagnetic wave can pass through a perfect insulator.

V. Перепишите следующие предложения, определите в них видовременные формы глаголов и укажите их инфинитивы, переведите предложения на русский язык.

1. When will you install this equipment?

2. They asked me to test the sample.

3. The article deals with the new method of communication.

4. She passed her examinations because she studied very hard.

VI. Перепишите и письменно переведите текст со словарём на русский язык.

FROM THE HISTORY OF THE RADIO

Radio occupies one of the leading places among the modern means of communication.

The principles of radio had been demonstrated in the early 1800’s by such scientists as Michael Faraday and Joseph Henry. They had individually developed the theory that a current flowing in one wire could induce (produce) a current in another wire that was not physically connected to the first.

Hans Christian Oersted had shown in 1820 that a current flowing in a wire sets up a magnetic field around the wire. If the current is made to change and, in particular, made to alternate (flow back and forth), the building up and collapsing of the associated magnetic field induces a current in another conductor placed in this changing magnetic field. This principle of “electromagnetic induction” is well-known in the application of “transformers”, where an iron core is used to link the magnetic field of the first wire or coil with a secondary coil. By this means voltages can be stepped up or down in value. This process is usually carried out at low frequencies of 50 or 60 Hz (hertz, or cycles per second). Radio waves, on the other hand, consist of frequencies between 30 kHz and 300 GHz.

In 1864, James Clerk Maxwell published his first paper that showed by theoretical reasoning that an electrical disturbance that results from a change in an electrical quantity such as voltage or current should propagate (travel) through space at the speed of light. He postulated that light waves were electromagnetic waves consisting of electric and magnetic fields. In fact, scientists now know that visible light is just a small portion of what is called the electromagnetic spectrum, which includes radio waves, X rays, and gamma rays. ~ 1500