Unit II. Participle I

Famous People

Jean Baptiste Joseph Fourier (1768-1830)

Jean Baptiste Fourier was a French mathematician and physicist who is best known for initiating the investigation of Fourier series and their application to problems of heat flow. In 1798, Fourier accompanied Napoleon and his troops to Egypt as a scientific adviser and for the next several years he studied Egyptian antiquities in addition to his more militaristic duties. When he returned to France he compiled the materials and held various administrative posts under Napoleon who made him a Baron in 1809. In 1822 he published his work The Analytical Theory of Heat,one of the most important books of the 19th-century in which he showed how the conduction of heat in solid bodies may be analyzed in terms of infinite mathematical series now called by his name – Fourier series. Fourier's observation that some discontinuous functions are the sum of infinite series was a breakthrough that let engineers and scientists solve problems that had previously been unthinkable. Fourier is also credited with the discovery that gases in the atmosphere might increase the surface temperature of the Earth. This was the effect that would later be called the greenhouse effect.

Read the following sentences. State the voice and the tense forms of the predicates. Find participle I in each sentence and explain the use of it. Translate the sentences into Russian.

1. Electrons forming an atom are in motion.

2. While explaining the results of the experiment the professor wrote a lot of formulae on the blackboard.

3. The latest model now being tested accounts for many of the previously unknown

phenomena.

4. While being used the device showed poor characteristics.

5. While repairing the motor the operator found two broken parts.

6. The acceleration of a body is proportional to the force causing it.

7. Using the energy of the atom we produce electric energy at atomic power plants.

8. Water expands when freezing.

9. The phenomenon influencing the rate of the reaction was thoroughly investigated.

10. Being widely used in industry, electrical motors are also used in every home.

11. Being a source of heat and electricity, atomic energy can also serve us in medicine.

12. When calculating the weight of a body we have to multiply its specific gravity by its

volume.

13. Water is the most efficient agent having a high heat transfer coefficient and a high heat

capacity.

14. For the investigation being conducted at present the lack of such data is of no

importance.

15. Cooling following heating gave good results

· Read the following text. Find the predicate in each sentence and state the voice and the tense form. Which of the sentences contain participles?Translate the text into Russian.

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