I. Discuss the following questions.

a) How much do you know about copper?

b) Where is copper used today? Make a list of possible applications of copper. Compare it with that of your groupmates.

c) Do you know any copper alloys? What are their constituents?

 

II. The students are at the seminar on metals technology. Listen to their discussion and learn what properties copper has and where it can be used.

Teacher: Dear students, today we're going to discuss the main pro­perties and applications of copper. So far, what can you say about this metal?

Andrew: If I'm not mistaken, copper is a non-ferrous metal. And it can be found in a free state in nature.

Alice : And as far as I remember, people were able to extract this metal in prehistoric times. Various things such as weapons, tools and decorations could be made of it.

Teacher: Very good. Were those copper tools very reliable? ,

Andrew: I think not. Pure copper is a soft ductile metal. Strong cutting tools could be made only of copper alloys such as bronze.

Teacher: OK. What are the present applications of copper?

Alice : Well, they are numerous. Copper metals can be used in most domestic appliances. Electrical industry is impossible without copper wiring as it is a very good conductor of electricity. Also, copper is corrosion resistant which makes it valuable for marine industry. Besides, this metal is even used in making money!

Teacher: You are quite right. Tomorrow we will be able to study the valuable properties of copper in-the practical class.

III. Complete the dialogue.

A: – Are we going ….today?

B: – … . Let's remember what…

A: – I know that copper ….

B: — Very well, and when ….?

A: – …

B: – What applications ….?

A: – …

B: – Why did bronze become so …?

A: – …

B: – Can you prove that copper … today?

A: – …

B: – What valuable properties … ?

A: – Well, …

B: – Excellent! I see you know a lot about copper.

 

IV. Match a line in A with a line in B.

А	В
1. Copper was discovered long ago.	a. Yes, it is.
2. Is copper used in automobile industry?	b. Where exactly?
3. Bronze was first produced in Asia and Africa.	c. You are welcome.
4. Why is copper so widely, used today?	d. You are quite right.
5. Electric wiring is made of pure copper, isn't it?	e. Because of its valuable properties.
6. Thank you very much.	f. Certainly.

 

Language Practice

I. Learn how to read these words.

ductile

recycling

reliable

plumbing

decorative

II. Match the Ukrainian words with their English equivalents.

1. оцінювати	a. qualities
2. добувати	b. conductor
3. провідник	c. purpose
4. домашній	d. to extract
5. вязкий (еластичний)	e. ductile
6. нержавіючий	f. domestic
7. якості	g. to estimate
8. ціль	h. corrosion resistant

III. Match the words with the opposite meaning.

А	В
1. useful	a. varied
2. ability	b. decorate
3. functional	c. tremendous
4. magnetic	d. to recover
5. present	e. useless
6. small	f. inability
7. necessary	g. ancient
8. uniform	h. nonmagnetic

 

IV. Say what these people could do in the past.

EXAMPLE: I can't use the new apparatus now but I could use it yesterday at the lesson.

1. He can't do research on copper alloys this term but he … it last term.

2. We can't compare the properties of these substances now but we … them during our previous experiment.

3. They can't study aluminium bronze at the lesson now but they … it in the lab yesterday.

4. We can't extract copper with the help of stone and bone tools but ancient people … it in this way thousands of years ago.

5. I can't describe the results of his experiment today but he … it yesterday.

 

V. Use the following statements in the past and future.

EXAMPLE: He can drive well.

He could drive well 10 years ago.

He will be able to drive well in a month.

1. He can continue his studies at the Mechanical Engineering facul­ty.

2. Our engineers can extract copper in several ways.

3. I can visit the Bingham Canyon copper mine.

4. This new car can move without a driver.

5. The scientists can use the samples of this substance in the test.

 

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