C) можно (может быть, возможно).

 

1) 1. the amount must be reached; 2. the task is to be executed in time; 3. the scientist may choose; 4. the results can be reprocessed; 5. the information had to be distributed equally; 6. the fact cannot be denied; 7. the magnetic field may be defined; 8. there must be a close relation; 9. the matter is to be considered; 10. he could calculate the intensity; 11. the measurement should be accurate; 12. the students were able to observe; 13. they may have discussed the problem; 14. you should be careful with acids; 15. the participants of the conference will be able to make their reports.

 

2. Найдите модальные глаголы в предложениях и дайте их русские эквиваленты:

1. You should remember the names of the scientists who have made a great contribution to the study of semiconductor physics.

2. You may use carbon steel in the construction of this building.

3. She cannot explain the properties of this group of alloys.

4. The students needed to study the influence of temperature on the strength of plastics.

5. I can do research on semiconductors now.

6. I want to become a materials engineer but I don’t know what I must study.

7. You may apply alloy steels for various engineering purposes.

8. The engineers can use copper for electrical conductors.

9. They could do research on copper alloys last term.

10. Students mustn’t be late for their classes.

11. We are to carry out a lot of experiments in our new laboratory next year.

12. Alex must perform all the experiments according to the instructions.

13. You ought to be more attentive in the laboratory.

14. They might have completed the research in that field.

 

3. Найдите предложения, в которых глагол «to be» переводится как «должен», «должен был», «должен будет».

 

1. The main task of this article was to show the results of the research.

2. The analogue systems of television are to be replaced by digital systems in the near future.

3. The lecture was to begin at 9 o’clock.

4. Our aim is to study well.

5. The participants of the conference are to arrive tomorrow.

6. This personal computer has been constructed at our lab.

7. It was Faraday who discovered the electromagnetic induction.

8. The next logical step is to apply electronic methods.

9. The professor is to make a report at the conference.

10. The machine was to be tested by the workers two hours ago.

11. The quality of these metal parts is to be very high.

12. The scientists are carrying on an important research.

13. Measuring temperature is necessary in many experiments.

14. For many centuries men were interested in obtaining new sources of energy.

 

4. Найдите предложения, в которых глагол «to have» переводится как «должен», «должен был», «должен будет».

 

1. You have to remember the names of the scientists who have made a great contribution to the study of semiconductor physics.

2. Optical computers will have two important advantages over the electronic machines in use today.

3. Efficient long-distance communication had to wait for the discovery of electricity.

4. Most research has been done on crystalline semiconductors such as silicon and germanium.

5. The computer will have to do a great deal of work to analyze the data.

6. Robots have shown scientists many of the things they will have to watch out for.

7. Many businessmen have to write a great many letters which are very much the same.

8. Very few of the robots we have talked about up to now have looked like men.

9. A rocket will have specially designed seats to protect its passengers.

10. I had my laptop repaired yesterday.

 

5. Сравните сказуемые по форме и дайте их русский эквивалент:

 

1. He should help you.

2. He should have helped you.

3. You should do your homework properly.

4. You shouldn’t have done that.

5. You ought to help her.

6. The experiment ought to be finished today.

2. You ought to have helped her yesterday.

3. He needn’t have done it.

4. Need I come at 8 o’clock?

5. You may take part in the research work.

6. He may have come to the University.

7. He may have forgotten about it.

8. She must take these books.

9. She must have taken these books.

10. This work must be done later.

11. You can find him here.

12. He cannot have done it.

13. This device cannot be repaired today.

 

6. Дайте русские эквиваленты следующих предложений, учитывая особенности перевода модальных глаголов:

1. First we should consider the arrangement of atoms in metals, i. e., in substances having thermal and electrical conductivities.

2. This field of force might be a simple static electric or a simple magnetic field.

3. Electronic devices must be built to fine limits if they are to function in the predicted manner.

4. A stream of electrons may be regarded as a large number of small bodies all moving in the same direction.

5. Electrons can be removed by the application of a very high electric field.

6. The fields might be very complicated ones.

7. From the purely physical point of view, electronics could be defined as the study of the motion of electrons in, or the interaction of electrons with, a field of force.

8. Matter may exist in any of its states: solid, liquid, gaseous.

9. We have to find another form of energy.

10. Several methods exist whereby sufficient energy may be supplied to the electrons in a metal in order that some of them may leave the metal.

11. You won’t be able to speak to him before the conference.

12. Electrons may be released from a gas in several different ways.

13. One of the requirements of an ideal optical system is that the magnification is to be constant.

14. We were not allowed to use our notes at the exam.

15. If there is a force between any pair of objects, we ought to be able to measure the force between them.

16. No further mention need be made of this elementary phenomenon, except to notice that excitation may be caused by any form of energy.

17. Efficient long-distance communication had to wait for the discovery of electricity.

18. It should be kept in mind that the initial electrons may be supplied by any of the methods discussed above.

19. We were to share the room with foreigners.

20. You shouldn’t have forgotten to leave a message for her.