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Exercises

1. Learn the following active words and expressions. Use them in the sentences of your own.

achieve (v) достигать

coal (n) каменный уголь

construct (v) строить, создавать

contain (v) содержать в себе

explode (v) взрываться

fission (n) расщепление

fuel (n) топливо

install (v) устанавливать

necessary (a) необходимый

nuclear (a) ядерный

pipe (n) труба

put into operation запускать, вводить в эксплуатацию

quantity (n) количество

reliable (a) надежный

split (v) расщеплять

steam (n) пар

2. Translate the following sentences and define the functions of the participle:

1. Working at his new device, the inventor made numer­ous experiments. 2. We have been speaking about the reactors from which no power is being taken. 3. In future the nuclear reactor must be one of the most reliable furnaces producing atomic power. 4. Atomic power being developed in a reactor in the form of heat, we can get both heat and power. 5. The construction of power stations operating on atomic fuels and generating electric current is quite necessary. 6. Being a source of heat and power, atomic power can also serve as a source of new useful products. 7. The power sources of the world decreasing, it is necessary to turn to atomic power. 8. Water falling from its raised position changes potential power into kinetic power.

3. Form one sentence of each pair of sentences using the Absolute Participle Construction.

Model:. Atoms split in the reactor; heat is developed

Atoms splitting in the reactor, heat is developed.

1. there are many different sources of power; coal is the most important of them. 2. atomic power replaces the present sources of power; we shall get more power in the future. 3. the reactor produces power in the form of heat; heat is developed owing to the splitting of atoms in the reactor. 4. a nuclear power station is like any other power station; the coal burn­ing furnace is replaced by a nuclear reactor.

4. Answer the following questions:

1. What is the difference between potential power and kinetic power? 2. What sources of power do you know? 3. What form of power can be changed into another form? 4. What are the industrial uses of electricity? 5. What do you call the device which changes chemical power into elec­trical power? 6. What is the difference between a battery and a generator? 7. What may coal be replaced by in future? 8. What electrical devices do you use? 9. What forms of power do you know?

5. Work in pairs. Put questions to your partner and he (she) will answer them.

1. if it is possible to see a single drop of water in the sea. 2. if the steam-generator of the nuclear reactor contains water.3. if man has learned to split atoms. 4. if atomic power finds new application in industry. 5. if our country constructed the first in the world nuclear power plant.

6. Arrange the words given in (a) and in (b) in pairs of antonyms:

Possible, useful, to construct, present, largest, unlimited, to increase, to lose

Past, impossible, to find, useless, limited, smallest, to destroy, to decrease

7. Fill in the blanks with prepositions:

I. Electricity plays an important part ... our everyday life. 2. It is difficult to imagine now how people could do ... electricity. 3. As my friend lives near the institute he usually goes there ... foot. 4. I often go ... bed late ... night. 5. One form ... power can be changed ... another form. 6. Only a little part ... solar power is used directly ... present.

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