Download Контрольная (практическая/лабораторная) работа, реферат

QUIZ 1
Version 1
I Translate the phrases into Russian
transmission medium
orbiting satellites
multiple transmitters
power amplifier
process information
two-way systems
build transceivers
microwave communications
sensitive radio receivers
convert signal back into usable
information
II Match the terms with the definitions
1. transmission
2. microwave
A) something having two parts
B) is a piece of equipment that is used for broadcasting
television or radio programmes.
C) an electromagnetic wave with a wavelength in the
range 0.001 - 0.3 m, shorter than that of a normal radio
wave but longer than those of infrared radiation.
D) a programme or signal that is broadcast or sent out
E) an electronic device for increasing the amplitude of
electrical signals, used chiefly in sound reproduction
3. amplifier
4. duplex
5. transmitter
III Complete the extract with the words from the box and translate it.
receiver
interface
amplifier
electricity
destination
In a radio broadcasting station the station's large power (1) __________ is
the transmitter; and the broadcasting antenna is the (2) _________ between the
power amplifier and the "free space channel". The free space channel is the
transmission medium; and the receiver's antenna is the interface between the free
space channel and the (3) __________ . Next, the radio receiver is the (4)
__________ of the radio signal, and this is where it is converted from (5)
__________ to sound for people to listen to.
IV Translate into English the sentences
1) В наши дни множество услуг и устройств доступно для обработки и
передачи информации.
2) Базовая телекоммуникационная система состоит из трёх основных узлах,
которые присутствуют в той или иной форме.
3) Передатчик принимает информацию и преобразует ее в сигнал.
QUIZ 1
Version 2
I Translate the phrases into Russian
transmit information
free space channel
multiple receivers
fiber optics
multiplex systems
design transceivers
office automation
point-to-point communication
to isolate high-power circuitry
convert information to a signal
II Match the terms with the definitions
1. satellite
2. multiple
A) a thin glass fiber through which light can be transmitted
B) an artificial body placed in orbit round the earth or another
planet in order to collect information or for communication
3. transceiver
C) a type of telephone which does not need wires to connect it
to a telephone system.
4. cellular telephone D) having or involving more than one part
5. optical fiber
E) a device that can both transmit and receive
communications, in particular a combined radio transmitter
and receiver
III Complete the extract with the words from the box
powers
designed
amplifiers
circuitry
transmission
The (1)____________ electronics and the receiver electronics in a transceiver
are actually quite independent of each other. This can be readily explained by the
fact that radio transmitters contain power (2)____________ that operate with
electrical powers measured in the watts or kilowatts, but radio receivers deal with
radio (3)____________ that are measured in the microwatts or nanowatts. Hence,
transceivers have to be carefully (4)____________ and built to isolate their highpower (5)____________ and their low-power circuitry from each other.
IV Translate into English the sentences
1) Организации малого и среднего бизнеса могут разрабатывать и
использовать электронные информационные ресурсы.
2) Телекоммуникация это передача информации на значительные расстояния
для связи.
3)Приемник принимает сигнал из канала и преобразует его обратно в
приемлемую информацию.