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II. Define the meaning of the predicates with modal verbs.

Can x; can be xed; could x; could be may x; may be xed; might x; might be must x; must be xed; should x; can x; should be can be may x; could be xed; may be could x; must be might x; should be xed; must x; can be xed; could x; may be must be must x; might be xed; should x; may x; must be xed; can be xed; should be may be could be should x; might be xed; can be should be xed; can x; must be could be xed; might x; should be

 

III. Define the meaning of the predicates with modal verbs.

Can solve; could solve; can be solved; could be solved; may obtain; might obtain; may be obtained; might be obtained; must find; must be found; should take; should be taken; can hold; could hold; can be held; could be held; may build; may be built; must heat; must be heated; should improve; should be improved.

 

IV. In each pair of sentences below compare the predicates by form and meaning. Define their similarities and differences.

a) 1. I can do research on semiconductors now. 2. Electrons can be removed by the application of a very high electric field.

b) 1. You may use carbon steel in the construction of this building. 2. Electrons may be released from a gas in several different ways.

c) 1. They could do research on copper alloys last term. 2. Electronics could be defined as the study of the motion of electrons in, or the interaction of electrons with, a field of force.

d) 1. Alex must perform all the experiments according to the instructions. 2. Students must not be late for their classes.

e) 1. First we should consider the arrangement of atoms in metals. 2. It should be kept in mind that the initial electrons may be supplied by any of the methods discussed above.

V. Give the Russian equivalents of the sentences below.

1. I want to become a materials engineer but I don’t know what I must study. 2. You may apply alloy steels for various engineering purposes. 3. The engineers can use copper for electrical conductors. 4. The fields might be very complicated ones. 5. Matter may exist in any of its states: solid, liquid, gaseous. 6. This device cannot be repaired today. 7. For a long time scientists could not discover the secret of the atom. 8. You should use these devices in your research work. 9. Chemists must create the materials which don not exist in nature. 10. This equipment can work with high accuracy.

 

VI. Define which of the words in bold type are verbs. Give the Russian equivalents of the sentences with these verbs. (see Appendix, p. )

1. You access this information through one interface or tool called a Web browser.

2. With voice and language recognition we will have easy access to all that the Internet can provide.

3. One of the most recent resultswas the creation of a new discipline, mathematical logic.



4. Such a process resultsin changes in the end product.

5. The Internet linked computers and computer networks around the world.

6. Larger networks of computers linked together become now available.

7. The main concernof an engineer is the rate at which work is being done.

8. The articles concernthe contribution of the Russian mathematicians to the theory of probability.

9. The investigations of the problem showed that his approachto it was misleading.

10. They approachthis problem from many sides.

VII. Match each English word with the correct Russian equivalent.

charger medium extensive tough visible pointer short sight ensure прочный близорукость видимый зарядное устройство указка гарантировать обширный среда

VIII. In the text of task X find a word derived from the verb to connect. Give other derivatives of this verb.

 

IX. Arrange in pairs the words with а) similar meaning, b) contrary meaning.

a) Technology, numerous, apply, technics, movement, cable, direction, multiple, way, connect, wire, process, use, study, link, handle, motion, research.

b) Efficient, include, solid, discharge, temporary, weak, inefficient ,liquid, obsolete, charge, exclude, modern, different, similar, permanent, strong.






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