Exercise 3. Соответствуют ли данные предложения содержанию текста:

Соответствуют ли данные предложения содержанию текста:

1. Iron and Steel Manufacture is a production of iron and its alloys.

2. Iron and Steel Manufacture is a production of alloys containing large percentage of carbon.

3. The differences between the various types of iron and steel depend on the country they are produced in.

4. Pig iron in general is an alloy of ferroalloys and carbon, often with an admixture coal and gas.

5. Some alloys that are commercially called commercial steels contain more carbon than iron.

6. Open-hearth iron and wrought iron contain from 1 to 4 percent of carbon.

7. Steels of various types contain from 2 percent to 4 percent of carbon.

8. Cast iron and pig iron contain amounts of carbon varying from 0,4 to 2,22 percent.

9. Ferroalloys are used in the manufacture of iron and steel alloys.

10. Ferroalloys contain from 20 to 80 percent of an alloying element, such as manganese, silicon, or chromium

Exercise 4

Используя текст, составьте высказывания с данными словами и выражениями:

Iron and steel - production of iron – alloy – carbon - admixture of elements - commercial steel - open-hearth iron - wrought iron - cast iron - pig iron – ferroalloy - alloying element – manganese – silicon - chromium.

Exercise 5

Кратко передайте содержание каждого абзаца.

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