Неличные формы английского глагола. Коптева Н.Ю. - 66 стр.

     St.: Being necessary for low-energy physics the equations of
        motion should be used in high-energy physics as well.
     1. Their concept was only philosophical. It differs from today’s one.
     2. This equipment is reliable.It is often used by the experimenters.
     3. That value was significantly in error. It had to be re-determined
        by new methods.
     4. The mechanism of ionization by collision is simple in concept.
        It is easy to understand.
     5. Explanation of these phenomena is a difficult ðrîblem. It has
        received a great deal of attention.
     6. This formalism was so successful for classical physics that it
        might lead to a useful theory of particles.
     7. The final method was a combination of the ideas and apparatus
        of several early experiments yielded good results.
     8. Quantum electrodynamics is capable of making highló accurate
        numerical prediction. It is one of the most important modern
        theories of physics.
VII. Restate the following sentences using Perfect Partici ple instead of
     the subordinate clause. Follow the model.
     Sp.: After the hypothesis had found support it was extended and
        clarified.
     St.: Having found support the hypothesis was extended and
        clarified.
     1. After physicists had conducted the search they solved the
        problem.
     2. After he had received an excellent education he adopted the
        career of a scientist.
     3. After they had compared all these materials they were able to
        choose the best one for their purpose.
     4. After he had attended a course of lectures on the subject he got
        a better understanding of it.
     5. After they had considered that hypothetical experiment they
        could tell the difference between these two processes.
     6. After we had analyzed the concept of energy more thoroughly
        we saw that...
     7. After the scientists had used more powerful experimental tools
        and theoretical approaches they found new atomic states.



                                — 66 —