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6. Define the forms and functions of Gerund:
1) Studying small structures is accomplished with the help of microscope.
2) Scientists began working at the problem of magnifying the power of microscopes more than 200 years ago.
3) They were greatly interested in improving the lenses.
4) Adding heat to a substance will not always cause a rise of its temperature.
5) The sound effect of increasing the magnet current is to increase the field strength at every point.
6) Representing the electric field by means of these lines help us to picture the forces between the changed bodies.
7) The experiments of physicists resulted in making much more powerful microscopes.
8) The main point of a transformer is changing voltage although the power of both sides of the transformer is equal.
9) After introducing new technology in that branch of industry some changes must be made as soon as possible.
10) The necessity in the form of increasing productivity gave birth to new automatic mechanism.
11) On reading J. Von Neumann's paper we understood the main idea of internal memory for storing the program.
12) By using transistor circuits scientists removed size limitation of the previous computers.
13) Measuring temperature is necessary in many experiments.
14) The laser beam is made exciting the atoms of a suitable material.
15) There can be no progress in science without experimenting.
16) Upon adding heat we can change the state of a substance.
17) Penetrating into space was very important for mankind.
18) For many centuries men were interested in obtaining new sources of energy.
19) When atoms or molecules are excited they emit electromagnetic waves. By counting the number of waves in certain period, a very accurate measure of time can be defined.
20) Telemetry is the science of seeing some place without being there.
7. Define whether the word with the suffix -ing is a Verbal noun, a Gerund or a Participle:
1) Our aim is solving this complex problem.
2) They succeeded in obtaining good results working with this metal.
3) The building of this laboratory will be finished next month.
4) In testing the devices they found some serious faults.
5) The growing importance of automatic equipment in industry attracts world-wide attention.
6) These scientists played a great role in the spreading of the metric system.
7) After graduating from Petersburg University A.S. Popov remained there as a post-graduate at the Physics Department.
8) After Hertz had published his experiments proving the existence of electromagnetic waves, A.S. Popov thought of a possibility of using Hertz waves for transmitting signals over a distance.
9) On March 24, 1896 he demonstrated the transmission and reception of a radiogram consisting of two words: Heinrich Hertz.
10) Using the new method it is possible to increase accuracy and speed of spectral analysis.
Thousands of scientists, using the most modern equipment, are studying the atmosphere.
Lesson Two
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