VII. Выберите правильную видовременную форму глагола.

25. Britain ………… for a new form of energy in recent years.

a)has been looking for

b)were risen

c)raised

26. The British usually ……… fossil fuels and ……… nuclear stations.

a)are burning and building

b)burns and builds

c)burn and build

27. Wind power ………… as an alternative source of energy in Holland for many years.

a)has been used

b)is used

c)is being used

28. In a few years Britain ……completely ……. the advantage of wind power.

a)don’t take

b)won’t take

c)not take

29. At present they ………… two wind turbines.

a)install

b)will have installed

c)are installing

VIII. Заполните пропуски предлогами.

30. Since conventional water heaters are in use, greenhouse gas emissions account .... 70%.

a)on

b)from

c)for

31. Alternative energy sources are coming ….. everyday use.

a)to

b)into

c)back to

32. It is important to differentiate …… renewable and non-renewable sources of power.

a) from b) between c) among

IX. Заполните пропуски прилагательным или наречием в нужной форме.

33. How ……..power is supplied by nuclear plants in your country?

a)many

b)big

c)much

34. Britain is one of ……… countries in Europe.

a)the windiest

b)the most windy

c)windiest

35. There are ……. wind farms in Britain than in Denmark.

a)less

b) more little

c)fewer

X. Переведите текст письменно.

SOLLAR COLLECTORS

A solar collector is a device which collects sunlight and converts it into a heat. It consists of the following parts: 1. A glass cover made of either a single a double sheet of glass. 2. Water tubes. These are usually made of aluminium or steel. 3. A flat metal plate. This is painted black and usually made of aluminium, steel or copper. 4. Insulation. This can be any insulating material which can withstand temperatures up to 200^oC. In India, for example, dried palm leaves have been used. 5. A casing that can be made of wood or metal.

The solar collector works in the following way:

1. It is fixed on the roof of the building.

2. The sunlight passes through the glass cover and strikes the black plate.

3. About 50% of energy is reflected back onto the glass.

4. The glass then reflects it back onto the plate.

5. This heats the water in the tubes.

6. The heated water in the tubes is fed into the heating system of the building.

Since they can still supply heat even when it is already colder outside, flat plate collector are preferred choice today for solar water heating in households.

Контрольная работа №3

по английскому языку для студентов всех технических специальностей

заочного отделения

Вариант 3

III семестр

1. Прочитайте и переведите текст (устно).

What is a Computer?

Computers are electronic machines which can accept data in a certain form, process the data and give the results of the processing in a specified format as information.

Three basic steps are involved in the process. First, data is fed into the computer’s memory. Then, when the program is run, the computer performs a set of instructions and processes the data. Finally, we can see the results (the output) on the screen or in printed form.

Information in the form of data and programs is known as software, and the electronic and mechanical parts that make up a computer system are called hardware. A standard computer system consists of three main sections: the central processing unit (CPU), the main memory and peripherals.

Perhaps the most influential component is the central processing unit. Its function is to execute program instructions and coordinate the activities of all the other units. In a way, it is the ‘brain’ of the computer. The main memory holds the instructions and data which are currently being processed by the CPU. The peripherals are the physical units attached to the computer. They include storage devices and input/output devices.

Storage devices (floppy, hard or optical disks) provide a permanent storage of both data and programs. Disk drives are used to handle one or more floppy disks. Input devices enable data to go into the computer’s memory. The most common input devices are the mouse and the keyboard. Output devices enable us to extract the finished product from the system. For example, the computer shows the output on the monitor or prints the results onto paper by means of a printer.

On the rear panel of the computer there are several ports into which we can plug a wide range of peripherals – modems, fax machines, optical drives and scanners. These are the main physical units of a computer system, generally known as the configuration.