Translate the sentences into Russian

1.Newton is considered to be one of the greatest English scientists.

2.Popov is known to be the inventor of radio in Russia.

3.Lomonosov concidered chemistry to be his “main profession”.

4.The air is known to be the mixture of gases.

5.The year 1895 is considered to be the date of the invention of the radio.

6.Surgut is known to be the town of oil and gas.

7.The machine tool is directed to accomplish the machining of the part.

8.More than one processing step is often required to complete a complicated part.

9.In designing roads the safety engineer seeks to avoid different hazards.

10.Engineers try to place greater and greater numbers of circuit elements onto smaller

and smaller chips.

 

Determine the function of the infinitive and translate the sentences into Russian

1.In 1810 Faraday began to attend lectures on natural phylosophy.

2.To study the nature of light and colour Newton carried out many experiments with

a prism.

3.The lecture to be delivered by a well-known scientist is devoted to the problems of

ecology.

4.Edison found an electric company to supply electricity to New York and other places.

5.The experiment to be made by these scientists will give us important information.

6.The procedure to be followed is described below.

7.They made some experiments to prove their theory.

8.At that time Newton began to think about construction of an astronomical telescope.

9.Circuits are used to generate waveforms useful for synchronisation and timing.

10.This assembly station hasn’t enough money to open the line for assembling new cars.

11.To carry out this experiment will take you a lot of time.

12.He forgot to register the results of the experiment.

 

3. Read the text and find in it the answers to the questions that follow it.

Rewrite the text and underline the infinitives, name their functions

 

Wattmeter

A wattmeter is used to measure the value of a power. It is connected to the circuit directly. A wattmeter consists of coils: two fixed coils and a coil which moves in the magnetic field produced by the fixed coils. Wire used for the coils must have a high resistance; the fixed coils are in series with the load, the moving coil is connected across the line series with a resistance. When a wattmeter is used, the readings on its scale show the value of power being used.

 

1.What is the wattmeter used for?

2.What does it consist of?

3.In what way are the elements connected?

4.What do the readings on the scale show?

 

4. Read the text and find in it the answers to the questions that follow it.

Rewrite the text and underline the infinitives, name their functions

 

Rheostat

A rheostat is a resistor whose resistance value may be varied. Thus, a rheostat is a variable resistance.

It is used to charge the resistance of circuits, and in this way to vary the value of current.

A rheostat consists of a coil and a switch. Take into consideration that wire used for the coil must have a very high resistance. When a rheostat is used its terminals are connected in series with the load. The switch is used to change the length of the wire through which the measured current passes. The resistance may be changed to any value from zero to maximum.

The longer the rheostst wire used in the circuit, the greater is the resistance.

 

1.What type of resistor is a rheostat?

2.What is a rheostat used for?

3.In what way does a rheostat vary the value of current?

4.What elements does a rheostat consist of?

5.In what way are the terminals connected with the load?

6.What is the function of the switch?

 

 

Unit 21

Страдательный залог (Passive Voice)

Формы страдательного залога английских глаголов образуются с помощью вспомогательного глагола to be в соответствующем времени, лице и числе и причастия II (Participle II) смыслового глагола:

Present Indefinite	The letter is written
Past Indefinite	The letter was written
Future Indefinite	The letter will be written
Present Continuous	The letter is being written
Past Continuous	The letter was being written
Future Continuous	The letter will be being written
Present Perfect	The letter has been written
Past Perfect	The letter had been written
Future Perfect	The letter will have been written

Глагол-сказуемое в страдательном залоге показывает, что подлежащее предложения является объектом действия со стороны другого лица или предмета.