THE LUBRICATING (OILING) SYSTEM

There are many places in an engine where metal rubs against metal. For example, the piston rings rub against the cylinder walls; the crankshaft rubs against the inside of the big end. When this happens, the metal gets hot. This rubbing together of metal (friction) and the heat cause the engine to wear. This friction can be made less by using oil. There is a large container (the sump) at the bottom of the engine. The sump holds over 1 gallon (4.5litres) of oil. Many pipes and holes go from the sump. The oil flows through these to places where there is friction; the cylinder, the crankshaft. A pump in the sump pumps the oil to these places. The pump is worked by the camshaft.

1. Complete the sentences with the active form of the verb in brackets:

1. I ……… (to think) of selling my car. Would you be interested in buying it?

2. I used to drink a lot of coffee but these days I ……… (to prefer) tea.

3. We couldn’t afford to keep our car, so we ………. (to sell) it last year.

4. Jill is interested in politics but she ……… (not to belong) to any political party.

5. I haven’t seen Alan for ages. When I last ……… (to see) him, he ……… (to try) to find a good, well-paid job in London.

6. Look at the river. It ……… (to flow) very fast today – much faster than usual.

7. I ……… (to have) a headache earlier but I feel fine now.

8. The police ……… (to arrest) three people but later they let them go.

9. What do you think of my English? Do you think I ……… (to improve) it?

10. There was a new sports car outside. It ……… (to look) so smooth and shiny.

11. Many people are skeptical about advertizing promises. They ……… (not to believe) them.

12. None of the students ……… (to show) any interest in extra functions of this apparatus yet.

13. Amanda ………. (to look) a bit depressed last week as her car had been stolen.

14. I can’t make a decision, I ……… (not to receive) all the data.

15. The distributor............... (to distribute) the high voltage electricity to the sparking plugs.

Text 13

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