Exercises.

1. Определите значения выделенных слов по сходству их корней с корнями соответствующих слов в русском языке:

natural gas; atomic energy; geologic past; the two main groups of rocks; the different categories of solid fuels; the basis of practically all natural fuels; the small amount of other elements; to be associated with water and gas; porous sedimentary rocks; geological formations; the most efficient fuel and raw materials; gaseous fuel; high thermal efficiency; to be derived from petroleum.

2.Укажите, какие предложения соответствуют содержанию текста. Подтвердите свои ответы фактами из текста.

1. Coal, water power and atomic energy are the only sources of energy available to man today.

2. Coal, wood and peat represent natural group of solid fuels.

3. As а rule fossil fuels are found in sedimentary rocks.

4. Crude oil is widely used for producing solid fuels.

5. Petroleum can be found in porous sedimentary rocks.

6. Gas is used to produce synthetic materia1s.

7. Not all types of fossil fuels burn.

3. А) Назовите, в каких предложениях употреблен герундий. Укажите определяющие его признаки:

1. Charcoal is used for producing high grades of cast iron.

2. Coke is formed in the process of heating certain grades of coal in the absence of air.

З. New concentration plants have been built for the processing of non-ferrous and ferrous metals.

4. Many minerals undergo changes by taking water in their molecule.

5. The form of а mineral body is taken into consideration in selecting the method of mining.

6. In prospecting for useful minerals, aerial photography will plау an important part.

7. Using modern mining equipment allowed the miners to increase the output of coal.

8. The training of mining specialists now takes plасе in proximity to industrial enterprises.

9. It is difficult to understand the nature of fossils without studying their origin.

б) Найдите в тексте предложения, в которых употреблен герундий.

Переведите предложения.

4. Переведите предложения, используя следующие слова и сочетания слов:

to be of great importance; to be the basis for; the national economy; to represent; there is; to manufacture; gaseous

1. Уголь, нефть и природный газ – старейшие источники энергии. Они представляют собой горючее топливо органического происхождения.

2. Есть (существует) жидкое, твердое и газообразное топливо.

3. Уголь – сырье для получения кокса.

4. Сырая нефть является основой для изготовления промышленного жидкого топлива.

5. Использование природного газа имеет большое значение для народного хозяйства страны.

5. Закончите предложения подходящими по смыслу словами из текста а:

1. As for the origin of fossil fuels they have been formed by… .

2. According to the latest information the main sources of energy are … .

З. As is known fossil fuels are mostly associated with ... .

4. As far as petroleum is concerned, it can be found in ... .

5. Generally speaking, all types of fuel are important ... .