Exercise 3. Соответствуют ли данные предложения содержанию текста:

Соответствуют ли данные предложения содержанию текста:

1. The basic materials used for the manufacture of pig iron are iron ore, coal and oil.

2. The oil is burned as a fuel to heat the furnace.

3. A typical blast furnace consists of a cylindrical aluminum shell lined with ordinary refractory bricks.

4. The air used to supply the blast in a blast furnace is precooled to temperatures between 10° and 80° C.

5. The weight of air used in the operation of a blast furnace is equal to the total weight of the other raw materials employed.

6. The pressurizing technique makes possible better combustion of the coke and higher output of pig iron.

7. The output of many blast furnaces can be increased twice by pressurizing.

8. Enriching the air blast with oxygen can increase the output of blast furnaces.

9. The container of molten pig iron is transported directly to the rolling mill.

Exercise 4

Используя текст, составьте высказывания с данными словами и выражениями:

To be burned as a fuel - to be produced by - the raw material - to be preheated to temperatures – the weight of materials used – to exceed - an important development – to make possible – to enrich the air - to increase the output - to be transported to - to be converted to - irregularities in the composition.

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