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V. Correct mistakes in the following sentences.

1. This beaker is made from glass.

2. This beam made of concrete.

3. What is the chisel made?

4. This steel pipes are made of cast iron.

5. Tyres is usually made of rubber.

6. The device for measuring temperature is known a thermometer.

7. The metre ruler is used for measure lengths and widths.

VI. Translate the following sentences into English using your active vocabulary.

1. Ці інструменти зроблено із різних технічних матеріалів.

2. Існують два типи технічних матеріалів: метали і неметали.

3. Сталь, мідь, чавун широко використовуються для виготовлення болтів, гвинтів, гайок.

4. Як метали, так і неметали мають певні якості, тому вони широко використовуються в виробництві технічних виробів.

5. Гума – дуже міцний матеріал.

6. Ручка цього молотка зроблена з дерева, а обух – із сталі.

7. – Дайте мені, будь-ласку, цю скляну колбу.

8. Будь обережним, не кинь цей предмет. Він зроблений із скла.

9. – Не використовуй цей мідний провід, використовуй сталевий.

10. Пластик – дуже легкий матеріал.

Reading and Speaking

I. Try to answer these questions before you read the text.

1. What groups are all engineering materials divided into?

2. Where are different metals used?

3. There are ferrous and non-ferrous metals, aren't there?

4. Are steel and cast iron ferrous or non-ferrous metals?

5. What are non-ferrous metals?

6. What are the characteristics of non-ferrous metals?

II. Read the text attentively and check your answers.

All engineering materials are divided into metals and non-metals. Copper, cast iron, aluminium are examples of metals. Rubber, plas­tic and ceramics are examples of non-metals. Today different metals are widely used in machine-building industry.

We can divide all metals into ferrous and non-ferrous. Steel and cast iron are in the group of ferrous metals. They are alloys of iron with carbon, manganese, silicon and other components.

Non-ferrous metals are metals and alloys the main component of which is not iron but some other element such as aluminium, copper and others. Some of the characteristics of non-ferrous metals are high electric and heat conductivity, high corrosion resistance, light weight and easiness of fabrication.

III. Find the proper continuation of the sentences according to the information in the text.

1. All engineering materials are divided into …

a) aluminium.

2. Ferrous metals have …

b) metals and non-metals.

3. The characteristics of non-ferrous metals are …

c) machine-building industry.

4. One of the main components of non-ferrous metals is …

d) ferrous metals.

5. We use different metals in …

e) iron with carbon, manganese, silicon and other components.

6. Steel and cast iron are examples of …

f) high electric and heat conductivity, high corrosion resistance, light weight, etc.

IV. Say whether you agree or disagree with these statements.

1. All engineering materials are divided into metals and non-metals.

2. Steel, iron and copper are widely used for making tools.

3. One of the main characteristics of ferrous metals is high corrosion resistance.

4. Aluminium and copper are the main components of non-ferrous metals.

5. Plastic is a heavy material.

6. Rubber is a very tough engineering material.

V. Fill in the gaps.

1. Ferrous metals are … of iron … carbon, manganese, silicon and other components.

2. People use various metals … machine-building … .

3. We can divide all engineering materials … metals and non-metals.

4. Steel and cast iron are … the group of … metals.

VI. Fill in the table with the following engineering materials:

iron, glass, aluminium, wood, cast iron, plastic, copper, steel, rubber.

METALS

NON-METALS

a) FERROUS

1.

2.

3.

1.

2.

3.

4.

b) NON-FERROUS

1.

2.

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