1. Переведите предложения на русский язык, обращая внимание на различные способы выражения долженствования:
1. In scientific work we must measure in units of the metric system.
2. One should turn off the gas when one leaves home.
3. This part is very complex and the worker has to use special tools to cut it.
| to have to | |
| must | ought to |
| to be to | |
| should |
4. We ought to say that the discovery of atomic energy is as important as the discovery of fire.
5. We should be prepared for scientific study of life on other planets.
6. Atoms must serve mankind.
7. The lecture is to begin at 6 o'clock. We ought to come in time.
8. You were to replace the tool by another one, why didn't you do it?
9. The engineer will have to improve the accuracy of this machine tool.
10. He had to work hard before he was able to submit his paper to a scientific journal.
11. The use of new machinery should increase the output of coal by 25 per cent per month.
2. Переведите предложения, обращая особое внимание на значения слова one:
1. The idea of automation is one of the most important ideas for modern industry.
2. He knew that no one could help him.
3. Our old laboratory equipment was much worse than the new one.
4. Due to radioactive elements one can measure the thickness of various materials.
5. One should always inspect the machine tool before he turns it on.
6. One cannot read such technical papers without a dictionary.
7. The new power stations are much more powerful than the old ones.
8. One must know that these rays produce a harmful effect on man.
9. One should always be careful when one operates this machine tool. 10. One can easily regulate the speed of this machine.
3. Выберите перевод выделенных модальных глаголов из данных ниже:
1. You may use the new devices for your research.
2. The solar batteries mustheat and light homes.
3. They couldvisit this new automation shop.
а) должны; Ь) можете; с) могли; d) сможете VII. Замените слова в скобках эквивалентами модальных глаголов, данными ниже:
4. You (должны) to replace this old lathe.
5. In future we (сможем) to use solar energy more effectively.
6. They (было разрешено) to test the machine tool.
7. The students (смогли) to make the experiment.