Топик: Методические указания по английскому языку

Alessandro Volta, a professor of physics, established the true source of the electric current. He demonstrated that it could be produced by the action of dissimilar metals. In 1800 he developed the first electric battery, a device known as a voltaic pile. Although he tried a number of different materials he found that the best results were obtained when he used silver and zinc as the two metals. The pile consisted of a series of small disks of these and of cardboard, the latter having been soaked in a salt solution.

2. Переведите слова и словосочетания:

source, dissimilar, device, a voltaic pile, silver, zinc, cardboard, soaked, salt solution, series.

3. Переведите предложения:

1) The electric current could be produced by the action of dissimilar metals.

2) A voltaic pile consisted of a series of small disks and of cardboard.

4. Выбрать правильный вариант:

Alessandro Volta established the true... of the electric current,

1. material

2. source

3. field

5. Выбрать правильный вариант:

During his experiments Volta developed the first electric...

1. battery

2. source

3. device

6. Выбрать правильный вариант:

By connecting... to the top and bottom discs Volta got electric current

a) discs b) wires c) bars

7. Закончить предложение:

An electric current is a flow of electrons along...

a) the particles were electrons

b) a metal wire or a conductor

8. Закончить предложение:

There are many measuring devices e. g....

a) galvanometers, voltmeters and others

b) slight changes every day

9. Закончить предложение:

The method of producing electricity directly from heat attracts...