Grammar

Look at the sentences below. Choose the correct translation of the Participle I in bold. Translate the sentences in your copybooks. HELP
1)With a stick, Tesla drew a diagram of a rotating magnetic field in the sand, explaining to his friend the principle of the induction motor.
2)He published schematic diagrams of the radio transmitter describing all the basic elements of the radio transmitter which was later used by Marconi.
3)During the World War II, working with Alan Turing for a few months, Claude Shannon was interested in the possibility of building a machine that could imitate the human brain.
4)In 1909 Marconi received the Nobel Prize for physics, sharing it with Ferdinand Braun.
5)Wiener changed the way everyone thought about computer technology, influencing several later developers of the Internet.
6)Edison had very little formal education as a child, attending school only for three months.
7)Tesla organized elaborate dinners, inviting famous people who later witnessed spectacular electrical experiments in his laboratory.
    
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Link the pairs of sentences using after or before+ Ving. Use the prompts in brackets. Translate the sentences in your copybooks.

Example:
First Tesla saw a demonstration of the "Gramme dynamo". Then he visualized a rotating magnetic field. (after) – After seeing a demonstration of the "Gramme dynamo", Tesla visualized a rotating magnetic field.

a)First Tesla worked out the whole idea of any device mentally. Then he put the sketch of the device on paper. (before)
b)First Babbage completed a small difference engine. Then he announced his invention to the Royal Astronomical Society. (after)
c)First Shannon graduated from MIT in 1940. Then he spent a year as a National Research Fellow at Princeton University. (after)
d)In 1931 Marconi began research into the propagation characteristics of still shorter waves. Then he demonstrated his microwave radio beacon for ship navigation. (after)
e)Norbert Wiener was awarded a Bachelor’s Degree in mathematics in 1909 and began graduate studies in zoology at Harvard. In 1910 he transferred to Cornell to study philosophy. (before)
f)First Edison worked in a number of cities throughout the United States. Then he arrived in Boston in 1868 where he changed his profession from telegrapher to inventor. (before)
    
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