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III. Fill-in the blanks with many, much, little, few, a little, a few.
1. The instrument is very sensitive; the ... noise affects its work.
2. Where a series field coil has ... turns made with heavy wire, a shunt field coil will
have ... turns made with fine wire.
3. In a metal there are ... electrons which are free and can move through the metal under the action of an electric force.
4. We know ... types of electric current.
5. There is a … difference between analog and digital methods.
6. Such a machine has been developed and used in ... schools.
7. Specialists must have ... knowledge to solve such problems on the computers.
8. The application of electricity in the modern world is the result of ... work.
9. …examples of the application of electricity were given in the previous text.
Fill in the blanks with some, any, no, every and their derivatives:
1. Are there …new instruments in your laboratory? - Yes, there are…2. Do you know … about this phenomenon? – No, I know … about it. 3. If you don’t know how to solve this equation, ask … to help you. 4. I didn’t find my drawing, I think that it is … on your shelf. 5. … knows that water is necessary for life. 6. The problem was so difficult that …solved it.
11. Infinitive. Complex Object. Complex Subject. For + Noun + Infinitive Clause.
I. Define the functions of the Infinitive in the following sentences. Translate them:
Our task is to study well.
The idea to use this substance is not new.
He described the device to be used in all modern systems.
The apparatus to be assembled is very complicated.
To translate the text without a dictionary is difficult.
To make the experiment you must improve the device.
The engineer wanted to be sent to the conference.
Lodygin was the first to invent the electric lamp.
In order to solve these problems, scientists must make many experiments.
To carry out this research work requires special knowledge.
II. State the functions of the infinitives and translate the sentences.
To move from one astronomical body to another means to overcome gravitational forces.
To accelerate the gas a high pressure is needed in the rocket chamber.
To land a high speed aircraft is a delicate operation even when visibility is good.
To produce a large thrust in a rocket requires high mass flow, high energy and high pressure.
To do work an object must have energy.
To coordinate the efforts of many groups of engineers constitutes a very difficult task.
III. Translate the sentences. Pay attention to the functions of the infinitives.
To check the result of the calculation is very important.
The engineer has to control the current in order to control the heating, chemical and magnetic effects of electricity.
If our aim is to maintain a flow of water in the pipe it is necessary to have a difference of pressure at the 2 ends.
If an exact match is not found, the word is examined to see whether it contains grammatical affixes.
The alternating voltage to be amplified is connected to the grid circuit.
Excessive grid current is to be avoided because it reduces the output power and increases the exciting power.
The unit used to measure resistance was later named after its discoverer.
The photoelectric system is used to sense the presence or absence of radiation and translate it into on and off control action.
For centuries man has been utilizing simple analog devices to solve mathematical problems by analogy.
To answer this question means to find a solution for the problem as a whole.
To record the information the machine is to be properly adjusted.
IV. Translate the sentences. Pay attention to the infinitive as an adverbial modifier of purpose.
To do this, the speed indicated by the tachometer is compared to the desired speed of the belt, assembly line or other unit.
To obtain a forward reading of the instrument its voltage connections must be changed over.
To understand how a semiconductor diode works, let’s go back a bit and examine electricity itself.
To protect electrical equipment and the wiring fuses circuit breakers are usually used.
Thermistors are used to compensate for changes in resistance of wire lines with temperature.
Electric and magnetic fields can be arranged to control the travel of light.
Step-down transformers are used to reduce the light transmission voltage to safe and usable values at the points where energy is to be used.
Cells and batteries may be connected in series to obtain higher voltages in parallel to achieve greater service.
Hot-cathode gas diodes are widely used for the rectification of alternating current to produce anode power for radio transmitters.
Strain gauges are transducers that are applied to the surface of materials in order to sense the strain of the material.
To keep from replacing so many burned out fuses many installations are incorporating circuit breakers.
To achieve reliability individual circuit bricks are used in the computer circuits.
To obtain the desired accuracy, a synchronous motor is generally used.
This negative grid voltage must vary with plate voltage to keep the thyratron from conducting.
To avoid rectification the r.f. voltage must not exceed the dc bias.
A series circuit is used in order to have the same value of current.
In order to increase the current capacity cells should be connected in parallel.
To repair printed circuit boards successfully, it is essential to use the proper tools.
V. Translate the sentences. Pay attention to the infinitive as an attribute.
It all depends on the nature of the problem to be solved.
One of main advantages to be gained is that phenomenon may be studied at the moment it occurs.
In the electronic-computer system the data to be processed and the instructions needed to process these data are recorded on magnetic tapes.
In transformers to be used with pentode and beam tubes, the distributed capacitance of the primary winding may be of importance.
When the signal to be amplified is a carrier wave, the carrier amplitude is half the peak amplitude to be handled.
Connect the low-ohms scale of your meter across the contacts to be closed.
They were the first to employ this method at the plant.
The electric circuit is the subject to be dealt with in the present article.
Then all the current to be sent will pass through the fuse.
A switch is a device to break or to close the circuit.
Conductance depends on the size of the wire, its length, temperature and the kind of material to be employed.
Glass is the insulator to be often seen on the poles that carry the telephone wires in city streets.
Conducting materials are by no means the only materials to play an important part in electronic engineering.
Yablochkov was the first to apply a.c. in practice.
VI. Change the following complex sentences given below according to the example and translate them.
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