29. Определите значение сочетаний глаголов с послелогами:

to look at the geological map to look for a mineral deposit

to work out a new plan to work on a difficult problem

(programme) to be made up of partings

to find out all about the to crop out at the surface

mode of occurrence of a to search for ores

mineral to touch upon the methods of

to cany out research prospecting

30. Подберите е глаголам из списка а существительные из списка б. Переведите полученные сочетания слов на русский язык:

А. Б.

1. to discover a) oil and gas

2. to drive 6) valuable minerals

3. to extract в) a proper method

4. to estimate r) new coal-fields

5. to choose д) crosscut (adit, drift)

6. to determine e) the cost of the project

7. to sink ж) holes

8. to search (for) 3) lead and copper

9. to take и) reserves

10. to smelt к) samples

11. to drill л) iron ore

м) pits

31. Назовите номера предложений, в которых местоимение It 1) является формальным подлежащим, 2) заменяет ранее упомянутое существительное:

1. Coal is used as a fuel. It is also important as the source of coke for the steel industry.

2. It is possible to explore very gently sloping seams by bore­ holes.

3. It is due to Karpinsky's work that we know the origin of the coal in the Donets Basin.

4. It should be noted that there exist surface (ground) and aerial prospecting methods.

5. Oil occurred at great depths and it was difficult to search for it.

32. Переведите предложения, обращая внимание на перевод союзов either ... Of, neither ... Nor.

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either	тот или другой,	either ... or	либо ... либо,
	и тот и другой		или ... или
neither	ни тот, ни другой,	neither ... nor	ни ... ни
	ни один (из них)

1. Depending on the geological conditions either adits or bore­ holes can be driven into the deposit.

2. When working steep seams under thick overburden neither trenches nor adits can be used.

3. Neither the thickness of overburden nor the angles of dip and strike were determined correctly.

4. At present either surface or aerial methods of geological pros­ pecting can be used.

1. Neither faults nor fissures were found by the surveyors.

33. Переведите предложения, обращая внимание на перевод инфинитив­ ного оборота «сложное подлежащее»:

1. Oil is known to be one of the most important sources of energy.

2. Petroleum is believed to have been formed from decaying vegetable and animal remains.

3. Drilling is considered to be the principal exploration method and it is widely used when deposits are of large dimensions.

4. Until recently a depth of 50-ft overburden was considered to be the maximum.

5. Coal is still the most important fuel and is likely to remain the main source of energy for years to come.

5. Neighbouring coal beds seemed to be sloping gently.

5. The computerized systems of planning and control proved to be reliable.