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Lead-in

I. Discuss the following questions.

a) What is steel? Can you name the constituents of this alloy?

b) Is steel widely used for engineering purposes? List all possible applications of steel.

II. Andrew has his practice at the steel works. Listen to his conversation with Alice and name the types and properties of steels that are men­tioned by the students.

Alice: Hi, Andrew, where are you going in such a hurry? I Andrew: Oh, you see, I may not be late today. We are going to the Steel works.

Alice: Really? What will you do there?

Andrew: I don't know yet. Maybe this time we will be allowed to observe how iron is melted, purified and alloyed with other elements and steel is produced.

Alice: Have you been to this works before?

Andrew: Yes, last time we were allowed to work with carbon steels and alloy steels so we could study their properties.

Alice: And what have you found out?

Andrew: Well, many things. Do you know that the hardest, tough­est, strongest and most valuable steel is tool steel?

Alice: I do now. Maybe you will be able to explain to me why stainless steel doesn't rust? I'm really interested.

Andrew: This is easy. Various alloying elements may be added to the base steel, which greatly improves its properties. Steel may be made corrosion-resistant if chromium is added.

Alice: I see…Well, see you tomorrow.

Andrew: OK. Bye-bye, then.

III. That's how we ask for and give permission in English. Study the table.

ASKING PERMISSION

GIVING PERMISSION

Can (may, could) …?

You can/may if you want/like.

Is it all right if …?

Yes, of course.

Do you mind if … + present simple?

Certainly.

Would you mind if … + past simple?

Go ahead.

By all means.

IV. Complete the dialogues using the phrases for asking and giving permission.

a) – …I have my practice at the British Steel works?

– …

b) – …I observe the steel making process?

– …

c) – …we study the properties of various types of steels today?

–… . Later we'll discuss … .

d) – What have you learnt…?

– Well, steels … be classified … types.

– OK, and … the main properties of steels?

– Let's see. Steels are … . Different… added to the base steel. This … its properties a lot.

Language Practice

I. Match the English words with their Ukrainian equivalents.

1. hardness

а. гартувати

2. to cast

b.твердість

3. pig iron

с. легована сталь

4. malleable

d. лити, виливати (у форми)

5. to temper

e. ковкий

6. alloy steel

f. чавун у болванках

II. Find words formed from the first word in the line.

1. corrode – code, corrosive, charge, conductor

2. cast – substance, content, casting, steel

3. require – environment, requirement, refine, tempering

4. pure – sulphur, powerful, impurity, perform

5. metal – modern, meat, malleable, non-metal

6. considerable – carbon, constituent, construction, considerably

III. Make all possible word combinations.

to improve

furnace

molten

treatment

heat

steel

special

working

mechanical

application

electric

properties

IV. Use the following statements in Past and Future.

EXAMPLE: He may continue the research.

He was allowed to continue the research.

He will be allowed to continue the research.

1. You may use carbon steel in the construction of this building.

2. She may extract iron from iron ores.

3. You may use manganese for changing properties of steels.

4. You may apply alloy steels for various engineering purposes.

5. The engineer may increase the carbon content of the steel.

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