Lexical Exercises. Exercise 1. Find the English equivalents for the words and word - combinations

Exercise 1. Find the English equivalents for the words and word - combinations

given below. Use them in the sentences of your own.

 

самый дешевый металл; самый важный металл; легко вступающий в реакцию; Малая Азия; к югу/ северу от; распространиться как на запад, так и на восток; покрыть тонким слоем золота; твердость; производство орудий труда и оружия; кузнец; процентное содержание углерода; добавлять углерод; закаливать металл/сталь; хрупкий; производить сталь; плавить железо; жидкое вещество; примеси; щипцы.

 

 

Exercise 2. Match the English words and word-combinations given below

with their Russian equivalents.

 

1. to extract iron 1. химический процесс

2. chemical process 2. учиться на опыте

3. a steel article 3. качество стали

4. the fuel in the furnace 4. раскаленный докрасна

5. to learn from experience 5. добывать железо

6. the quality of the steel 6. топливо в печи

7. to melt iron completely 7. требовать большого умения

8. to vary a great deal 8. полностью расплавить железо

9. to require great skill 9. отличаться во многом друг от

друга

10. steel becomes very brittle 10. изделие из стали

11. red-heat 11. сталь становится очень хрупкой

Exercise 3. Answer the following questions

 

1. Why is life impossible without iron? 2. Who first discovered how to extract iron from iron ore? 3. Why did they keep this process as a closely guarded secret? 4. How did the discovery of iron spread both east and west? 5. What is smelting? 6. What did the smiths do? 7. How did they get steel? 8. What process is called quenching? 9. Were the early smiths able to melt iron completely?

Exercise 4. Complete the following statements by choosing the answer which

you think fits best. Are the other answers unsuitable? Why?

 

1. Man cannot live without iron because:

a) it is easy to mine it. b) it is very cheap.

c) he uses it in his everyday life.

2. The Hittite kept the process of smelting a top-secret because:

a) they wanted to use iron only for themselves.

b) it helped them to sell iron at high price.

c) they were very ptimitive people.

3. Early smiths could not produce proper steel because:

a) they did not know the right percentage of carbon.

b) the furnaces were not hot enough. c) they tried to introduce oxygen.

4. Great skill and dexterity were required to extract iron from ore because:

a) iron was heated very quickly.

b) the furnaces were not hot enough and tongs hadn’t been invented.

c) the hammer was too heavy.

Exercise 5. Give a written Russian translation of the following sentences.

 

Iron is the commonest of all metallic elements (symbol Fe), used in various forms. Practically all of the iron is extracted from its chemical compounds in the blast furnace. A certain amount of harmful impurities is always present in iron ore. Ferrous metals are used in industry in two general forms: cast iron and steel.

Steel is iron containing to 1.7 per cent carbon content. Pure iron is not used in industry because it is too soft.

Cast iron is a hard, brittle, non-malleable iron-carbon alloy containing 2.0 to 4.5 % carbon, 0.5 to 3% silicon and lesser amounts of sulphur, manganese and phosphorus.