1.Переведите на русский язык:

1. In the beginning of the year 1800 Volta made the first electric battery.

2. All chemical elements are composed of atoms.

3. He discovered the electric current and with this discovery a new era began in electric inventions.

4. The air is a mixture of gases.

5. The chief advantage of the Metric system over the English units is that all metric units are divided into 10 or 100 parts.

Составьте вопрос к каждому предложению задания 1

2.Определите функцию Participle 1 и переведите предложение на русский язык:

1. He came into the room singing.

2. The pupil sitting beside Jim is his brother.

3. They returned home without realizing the significance of their discovery.

4. Here for four very difficult years they worked, weighing and boiling and measuring and calculating and thinking.

3. Определите, чем являются выделенные слова: причастием 2 или личной формой глагола. Переведите предложения на русский язык:

1. Cosmic rockets launched with first space velocity (7, 9 km. per sec.) become artificial satellites of the Earth.

2. He passed by without saying a word.

3. An ammeter is an instrument used to measure the current.

4. Определите время и залог сказуемого и переведите следующие предложения на русский язык:

1. Their house was made of brick.

2. The metre rule is divided into 100 centimetres.

3. I am interested to see this apparatus in operation.

4. Michael Faraday, English experimental physicist, in his early life worked as a bookbinder’s apprentice (ученик переплетчика) earning his living.

Вариант 6

Прочтите текст, постарайтесь понять общее содержание и ответьте на вопросы, стоящие после текста.

TEXT

HENRY CAVENDISH AND HIS DISCOVERY

Henry Cavendish was born in 1731 and died in 1810. He was an English nobleman who did scientific experiments as a hobby. In 1781 he made the important discovery that water is not an element but a compound of the gases we now call hydrogen and oxygen. He described his experiments to the Royal Society in 1785.

His method was new. He showed that if electric sparks are passed¹ through a mixture of hydrogen and oxygen the two gases combine explosively² and form water. This was a dangerous experiment. Cavendish did his experiment safely; he wisely used a strong brass container for the gases. He also passed electric sparks through air and found that gases which readily dissolve in water form acids. We explain this reaction today as follows: oxygen and nitrogen combine and form oxides of nitrogen.

Cavendish also noticed that air contained a small proportion of a gas which did not combine with any other gas even if we pass electric sparks through it for a long time. Now we think that this gas was probably argon, one of the inert gases. It was rediscovered many years later.

NOTES

1. if electric sparks are passed – если пропускать электрические искры (разряды)

2. explosively – со взрывом

Ответьте на вопросы:

1. What was Henry Cavendish?

2. When and where did Cavendish live?

3. What did Cavendish discover?

4. Is water an element?

5. How did Cavendish prove (доказал) that water is a compound?