2015-09-07
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I. Прочтите и переведите предложения, содержащие модальные глаголы и их эквиваленты:
1. The designers can always improve the operationof these receivers.
2. He could use any transmitter for this system.
3. The scientists are able to perfect this system operation due to the application of superconducting materials.
4. The designer was able to construct a new deviceby using semiconductors.
5. The engineers must test a new receiver for using it in this system.
6. We have to increase the current strength by decreasing the resistance of the circuit.
7. For improving the system operation the designer was to use low weight equipment.
8. Because of the electrical neutrality requirement, the space charge is to remain constant.
9. The engineers were to investigate new means of radio communication.
10. After finishingthe experiment the scientistswill have to discuss the results.
11. The students didn't have to conduct experiments in this field of science.
12. They didn't have to analyse these data.
13. We may say that photoelectric properties of transistors are largely used in TV sets.
14. The students might use all the laboratory equipment.
15. The students were allowed to show all the automatic devices.
16. The students will be allowed to conduct this experiment in the laboratory.
II. Прочтите и переведите предложения, обращая внимание на способы перевода инфинитива в страдательном залоге после модальных глаголов и их эквивалентов:
1. Electrolysis may be defined as a process by which a chemical reaction is carried out.
2. The mass may often be defined as the quantity of matter remaining constant everywhere.
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3. When the forces act in the same direction, the resultant can be found by adding the applied forces.
4. The energy which has to be supplied by the generatororbattery is transformed into heat within the conductor.
5. The frequency of an oscillator is to be kept constant by means of an oscillating crystal.
6. To detect very weak radio signals a directional antenna and a highly sensitive radio receiver are to be used.
7. A number of scientific problems were to be solved in connection with the construction of a network of electrotransmission lines.
III. Прочтите предложения, определив функцию причастия II, и переведите предложения:
1. The oscillations produced in the antenna are weak.
2. The antenna receives only a small part of energyradiated by the transmitter.
3. Negatively charged ions are attracted to theanode; positively charged ions are attracted to the cathode.
4. The results obtained are of great importance.
5. The constructed transmitter operated onvarious frequencies.
6. If arranged according to their atomic weights, the elements show the periodicity of their properties.
7. When heated, magnetized steel will lose its magnetism.
8. When produced in one tube, minimum grid voltage is produced in the other tube.
9. Placed in a different surrounding medium the device operates differently.
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