5. Выбрать правильный вариант:
Anyone who has a coil of wire, a.... magnet and a sensitive current
indicator may repeat Faraday's experiment.
a. ) big b) bar c) copper
6. Выбрать правильный вариант:
Amplifying the current, the scientist.... the necessary results
a) deflected b) got c) switched on
7. Закончить предложение:
Faraday's basic idea was that a magnet near a conducting wire should
be.....
a) on opposite sides of the ring b) able to produce an electric current
8. Закончить предложение: Faraday separated each turn.....
a) by string for insulation purposes b) fed from the battery
9. Закончить предложение: Faraday wound long coils of thin copper wire....,
a) he was disappointed b) on opposite sides of the ring
10. Составить предложение:
by, produce, wanted, electricity, Faraday, to, electromagnetism.
11. Перевести на английский язык:
1) Идея получения тока непосредственно действием магнита не оставляла его
мыслей,
2) Обычно Фарадей носил в кармане маленькую модель электромагнитного
прибора.
12. Ответить на вопросы:
1) What was Faraday famous for?
2) What was his idea?
3) What can you say about a small model of electro-magnetic apparatus,
Вариант 5
1. Переведите текст:
The Discovery of Magnetic Induction.
The discovery in 1820 that there was a close connection between electricity
and magnetism was very exciting -until then, the two subjects had been
considered as quite independent. The first discovery was that currents in
wires make magnetic fields; then in the same year, it was found that wires
carrying current in a magnetic field have forces on them. In 1840 Faraday
discovered - electric effects exist only when there is something changing.
If one of a pair of wires has a carrying current, a current is induced in
the other, or if a magnet is moved near an electric circuit, there is a
current. We say that currents are induced.
2. Переведите слова и словосочетания:
Discovery, magnetic induction, wires, magnetic fields, current, electric
effects, induced, an electric circuit, connection, electricity and
magnetism.
3. Переведите предложения:
1) Electricity and magnetism subjects had been considered as quite
independent subjects.
2) If currents make magnetic fields, people suggested that magnets might
also make electric fields.
4. Выбрать правильный вариант:
For the atom to be electrically neutral, the number of protons must
be....... to that of
electrons.
a) more b) equal c) less
5. Выбрать правильный вариант:
We know Isaac Newton to express the connection between........ and motion
in the form
of several laws.
a) electricity b) current c) force
6. Выбрать правильный вариант:
Before Faraday's discovery the only usable source of........ was the
galvanic battery.
a) electricity b) magnetism c) conduction
7. Закончить предложение:
Artificial magnets may be made by placing.........
a) a magnet to be magnetised into a battery
b) a piece of iron or steel to be magnetised into a coil
8. Закончить предложение:
Faraday wanted to produce electricity by.........
a) Electromagnetism b) electric circuit
9. Составить предложение:
Was, carrying, a, have, them, discovery, that, current, magnetic, forces,
the, wires, in, field, on.
10. Составить предложение:
A, electricity, and, had, as, was, between, magnetism, subjects,
considered, independent, there, connection, and, these, been, quite.
Вариант 6
1. Переведите текст:
Generating an Electric Current
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,
a) material
b) source
c) field
5. Выбрать правильный вариант:
During his experiments Volta developed the first electric...
a) battery
b) source
c) 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...
a) problem of life
b) attention of scientists
10. Составить предложение:
that, current, produced, action, metals, demonstrated, the, could, by, of,
Volta, electric, be, the, dissimilar
II. Тексты для чтения и перевода.
Read and translate the texts:
Uzbekistan Chooses Its Way.
The proclamation of Independence on September 1-st 1991 was landmark
in the history of the Republic. Uzbekistan is a multi-national country
inhabited by more than 130 nations and nationalities.
Uzbekistan's present day economy is diversified consisting of
agricultural and manufacturing industries including the gas and oil
industries, ferrous and nonferrous metallurgy, coal and uranium fields,
engineering, cotton-ginning, textiles, canning and others. Uzbekistan
possesses the largest economic potential and highest growth figures amongst
the republics of Central Asia in both industrial and agricultural
development. An important place in the Republic of Uzbekistan's economy is
given to the rural sectors and especially the cotton growing industry.
Uzbekistan ranks 4th in the world's gross cotton yield stakes. The
substantial scientific-technical potential, both in the industrial and
agricultural development sectors, has been created in the Republic.
Uzbekistan maintains foreign trade connections with many countries in the
world, participates in various international exhibitions and festivals,
enjoys the memberships of many international organizations, banks and
funds. At present over 120 countries of the world have recognized the
Republic of Uzbekistan and diplomatic relations have been established with
more than 60 of them. In Tashkent - the capital of independent Uzbekistan -
there are 27 embassies, a UN mission and the opening of a further number of
embassies is planned. Broad opportunities have been opened up for the
involvement of the Republic in an international division of labour and for
the extension of foreign trade, ties having been obtained through
independence and sovereignty. Uzbekistan today has a developed
infrastructure. The total length of railroads is over 3.5 thousand
kilometers, connecting all the large economic centres of the Republic,
ensuring entry to the CIS and other countries. There are over 40 thousand
kilometers of highway. Uzbekistan is a Republic where traditions and
principles of world community are highly honoured and being a full member,
the Republic concentrates its efforts on the elaboration and realization of
independent economic and social policies directed at renewing life, the
intensive development of the national economy, the improvement of the
peoples' well-being and its rapid integration into the world economic
structure. The peoples of Uzbekistan look ahead with optimism.
Tashkent.
The early information about our city you can find in ancient Eastern
annals of the 2 century- BC. Caravans going by the Great Silk Road passed
Chach (the ancient name of Tashkent). Convenient geographical position
favoured the city in its turning into the capital of the state.
At the end of the 10-th and the beginning of the 12-th century people
more often called Chach by another name - Tashkent, which means "Settlement
made of stone".
The monuments of medieval architecture harmonize with the modern
architectural constructions. This combination differentiates Tashkent from
many other cities. So does the hospitality, cordiality of Uzbek people.
Tashkent always welcomes guests. International meetings, symposiums,
conferences, festivals are held here. The city has many friends-sister
cities; Karachi,
Seattle, Tunis, Patiala, Birmingham. That's why Tashkent is considered to
be "the city of
friendship and brotherhood".
Today Tashkent - is the, capital of Uzbekistan, cultural center of the
country. There are 9 theatres, Conservatory, museums, such as Art Museum,
Museum of history of Uzbekistan. Tashkent has shady parks with queen
fountains, concert, art exhibition halls, stadiums, swimming pools,
libraries, gardens.
