Реферат: Методические указания по английскому языку

--PAGE_BREAK--Вариант 3
1. Переведите текст:
The Electric Current
When a conductor joins two points of different potential, electricity flows from one to the other along the conductors until the potentials are equal. This process is very rapid, and with good conductors is completed in a fraction of a second. While it lasts, an electric current is said to flow from one point to the other. By convention, the direction of the current is said to be that from the higher to the lower potential, i.e. the direction in which positive charges would travel, but actually, owing to their much greater mobility, it is the negative electrons which move, and it is their mo­tion which constitutes the current.

2. Переведите на русский язык:

conductor, potential, rapid, direction, positive, charge, mobility, motion, negative, current.

3.
Переведите

предложения
:

1) Electricity flows from one potential to the other until the potentials are equal.

2) An electric current flows from one point to the other.

3) The motion of the negative electrons constitutes the electric current.

4. Выбрать правильный вариант слова:

When a conductor joins two points of different potential… flows from one to the other.

a) process

b) electricity

c) motion

5. Выбрать правильный вариант:

This process is very… and is completed in a fraction of a second.

a)large

b)slow

c) rapid

6. Выбрать правильный вариант:

The direction of the… is that from the higher to the lower potential

a) current

b) electricity

c) charge

7.
Закончить

предложение
:The electric current passing through a wire ....

a) will cool that wire

b) will heat that wire

8.
Закончить

предложение
:

By connecting wires to the top and bottom discs Volta ....

a) was able to get electric current

b) was able to heat a conductor

9.
Закончить

предложение
:

When an electric current flows along a conductor, ....

a) the latter becomes strong

b) the latter becomes heated

10.
Составить

предложение
:

from, to, along, flows, potential, the, conductor, electricity, one, other, the.

11. Перевести на английский язык.

1) Направление тока осуществляется от высшего к низшему потенциалу.

2) Электричество течет от одного потенциала к другому, пока потенциалы равны.

3) Именно движение отрицательных электронов образует электрический ток.


Вариант 4
1. Переведите текст:

Faraday's Experiment
Faraday knew from his long study of electricity that magnetism should be able to produce a current, as well as vice versa. In spite of his various failures, the idea of producing a current directly by magnetic action remained firm in his thoughts. One of his friends said later how at this period of his long life Faraday used to carry about with him in his pocket a small rough model of electro-magnetic appara­tus. This consisted simply of an inch-long straight iron core with some turns of copper wire wound round it. The basic idea he had in mind was this: if an electric current in a wire can produce a magnetic effect, why should not a magnet near a conducting wire produce an electric current?

2. Перевести на русский язык:


 electricity, magnetism, various, directly, magnetic, action, real­ly, successful,             immediately, reaction.

3.
Переведите

предложения
:


 1) Faraday knew that magnetism should be able to produce a current.

 2) He had produced electricity through magnetism which had never been done before.

 3) Faraday used to carry about with him a model of electromagne­tic apparatus.

4. Выбрать правильный вариант слова:


In spite of his various… Faraday was sure that magnetism should be able to produce a current.

 a) failures         b) purposes       c) magnets

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,
    продолжение
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