Контрольное задание №2 Вариант 5

I. Перепишите следующее предложение: подчеркните временную форму и залог. Переведите предложение на русский язык. Обратить внимание на перевод пассивных конструкций.

a) 1) One student was carrying out the experiment while the other was putting down details.

2) We have just finished our experiment.

б) 1) Electricity can be used for many purposes.

2) Each question is accompanied by a selection of answers and the student selects what he needs.

II. Перепишите следующие предложения: подчеркните причастие I и причастие II, установите функции каждого из них. Переведите предложения.

1. The applied device was very efficient.

2. The engine tested required further improvement.

3. When handing freely the needle will point north and south in the magnetic meridian.

4. The device referred to is a gyroscope.

III. Перепишите предложения, определите в них сказуемое и укажите его время и залог. Письменно переведите предложения на русский язык

1. An atom consists of electrons, protons and neutrons.

2. Intensive research and experimental work has been carried on in the designing and production of industrial models of electrical coal-mining machinery.

3. Years of research went into developing the prototype of today’s

4. Alternating current transformers are widely used in electrical engineering.

5. Oil industry workers overfulfilled their plan

IV. Перепишите следующие предложения и письменно переведите их на русский язык, обращая внимание на функции герундия.

1. We insisted on their employing modern computers.

2. To gain maximum benefits modern industrial engineering must be capable of assisting in and performing many services.

3. This method of mixing has been used since the days of World War II.

4. Studying foreign languages is desirable for an educated man.

V. Перепишите следующие предложения и письменно переведите их на русский язык, обращая внимание на значение слов “one”, “it”, “that”.

1. The characteristic property of gas is that of diffusion.

2. It is desirable that you should be present at the meeting.

3. It was periodic table of elements that D. Mendeleyev discovered in 1869.

4. One should help one’s parents.

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

ELECTRIC POWER CONSUMERS AND POWER SYSTEM

An electric power consumer is an enterprise utilizing electric power. Its operating characteristics vary during the hours of day, days and nights, days of week and seasons.

All electric power consumers are divided into groups with common load characteristics. To the first group belong municipal consumers with a predominant lighting load: dwelling houses, hospitals, theatres, street lighting systems, mines, etc.

To the second group belong industrial consumers with a predominant power load (electric motors): industrial plants, mines, etc.

To the third group belongs transport, for example, electrified railways. The fourth consists of agricultural consumers, for example, electrotractors.

The operating load conditions of each group are determined by the load graph. The load graph shows the consumption of power during different periods of day, month, and year. On the load graph the time of the maximum loads and minimum loads is given.

Large industrial areas with cities are supplied from electric networks fed by electric power plants. These plants are interconnected for operation in parallel and located in different parts of the given area. They may include some large thermal and hydroelectric power plants.

The sum total of the electric power plants, the networks that interconnect them and the power utilizing devices of the consumers, is called a power system. All the components of a power system are interrelated by the common processes of protection, distribution, and consumption of both electric and heat power.

In a power system, all the parallel operating plants take part in carrying the total load of all the consumers supplied by the given system.

The building up of a power system is of great importance for the national economy. An economical utilization of the power plant installations and of the sources of power is achieved by interconnected operation of a series of power plants in a common power distribution system. ~ 1600