I. Grammar
Ex.1. Choose the right form of the verb
1. This house by my husbands great-grandfather in 1790.
a) is built
b) are built
c) was built
d) will be built
2. Petrovs family by the graciousness of the little ladys manner.
a) is puzzled
b) are puzzled
c) was puzzled
3. As a result of an earthquake, the house there and her parents and brothers and sisters all lost their lives.
a) is burned down
b) are burned down
c) was burned down
d) will be burned down
4. While I sat there a note me from the house.
a) is brought
b) has brought
c) was brought
d) had brought
5. I in an orphanage and then I by some people who died. Andrew approached the Dumavs house.
| a) is brought up | is adopted |
| b) was brought up | was adopted |
| c) has brought up | have adopted |
| d) had brought up | had adopted |
6. The door of the house as usual.
a) is unlocked
b) are unlocked
c) was unlocked
d) were unlocked
7. The girl last here about twenty minutes to eleven. By midnight, according to medical evidence she was dead.
a) is seen
b) was seen
c) were seen
8. Diana is a huntress, isnt she? She always wearing a tunic.
a) Am portrayed
b) is portrayed
c) are portrayed
Ex.2. Translate into English:
1. .
2. .
3. .
4. .
5. ?
6. .
7. .
8. ? .
9. ? .
11. .
12. .
13. .
14. .
15. .
II. Vocabulary
Ex.2. Give the Russian equivalent of the given words:
Open, Short, Trouble, To result in, To result from, To pass through, To connect, To supply, Branch, Main line, Value, Voltage drop, Series, Parallel, Meter, Battery, Scale, Readings, Terminal, Cell.
Ex.3. Match A with B:
A B
| 1. Simple and complex units | 1) |
| 2. Complex devices | 2) |
| 3. Interconnection problem | 3) |
| 4. Long-distance offices | 4) |
| 5. Intercity transmission lines | 5) |
| 6. Automatic switchboards | 6) |
| 1. Connecting trunk | 7) c |
| 2. Auxiliary equipment | 8) |
| 9. New and original sounds | 9) |
III. Reading
Ex.4. Read and translate the following word combination:
Simple and complex units; complex devices; interconnection problem; long-distance officer; intercity transmission lines; automatic switchboards; connecting trunk; auxiliary equipment; new and original sounds.
|
|
|
High and low frequency energy; necessary amplifier parts; bad reception; oscillatory circuits; changing wave direction; wave modulation
Ex.5. Say what devices are described below:
The device consists of coils, a magnet, and a diaphragm. These parts are housed in a plastic cap. Ehen variable current passes through the magnets coils changes the position of the diaphragm. The diaphragm begins to oscillate.
Ex.6. Translate the text in written form; complete the tasks after the text:
ELECTRIC CIRCUIT
The purpose of the electrical source is to produce the necessary electromotive force required for the flow of current through the circuit.
The path along which the electrons travel must be complete otherwise no electric power can be supplied from the source to the load. Thus we close the circuit when we switch on our electric lamp.
If the circuit is broken or, as we generally say "opened" anywhere, the current is known to stop everywhere. We break the circuit when we switch off our electrical devices. Generally speaking, the current may pass through solid conductors, liquids, gases, vacuum, or any combination of these. It may flow in turn over transmission lines from the power-stations through transformers, cables and switches, through lamps, heaters, motors and so on.
There are various kinds of electric circuits such as: open circuits, closed circuits, series circuits, parallel circuits and short circuits.
- Write down the question and answer it in written form: What is an electric circuit?
- Make 5 questions to the given sentence: When electrical devices are connected so that the current flows from one device to another, they are said to be connected in series.
IV. Speaking
Ex.7. Answer the questions
1. What part of the telephone is the receiver connected to?
2. What parts does the receiver consist of?
3. What parts are housed in the plastic cap?
4. What changes the position of the diaphragm?
5. What is the frequency of the oscillations?
6. Why does the diaphragm vibrate?
7. Why does the receiver reproduce the same sounds which are spoken into the microphone?
