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5. Compose sentences with the words and phrases from Ex. 4.

6. Study the text and find sentences with the Infinitive and the Infinitive Constructions. Translate them into Ukrainian.

7. Translate the following sentences into Ukrainian:

1. We know brick to be produced by new methods.

2. I saw the bricklayer practice handling bricks.

4. Brick proved to be of high thermal conductivity.

5. Porous bricks are considered to be more effective.

6. A bricklayer seems to handle more than 500 bricks in an eight-hour working day.

7. Brick appeared to have been used since the Middle Ages.

8. It is for the engineer to decide what building material to be used in this structure.

9. It is necessary to protect fingers from rough bricks.

10. Bricklayers use leather pads to prevent fingers from rough bricks.

V. Talking Assignments

1. Divide the text into logical parts.

2. Express the main idea of each part. Use the following phrases:

– The first (second, third …) part of the text is about …

– It describes (considers, deals with, informs) …

– The author stresses (points out) that …

3. Ask your friend questions in English about their content. Summarize his/her answers:

– Чому цегла вважається одним з найпоширеніших будівельних матеріалів?

– Як виглядає цеглина?

– Які види цегли ви знаєте?

– Чому будівництво з цегли популярне протягом сотень років?

– Як виробляють цеглу зараз? Як її виробляли раніше?

4. Discuss with your friend the advantages of modern brick. Use the following expressions:

Opening discussion:

As I see it…

If you ask me…

I’d say that…

I couldn’t agree…

I sometimes think…

Don’t you agree that…

Promoting discussion:

That’s good point…

I see what you mean…but sorry…

Let me explain that…

I’m not sure I quite agree with you here…

That’s just what I was thinking about…

Misunderstanding:

I didn’t quite follow what you are saying…

I don’t quite see what you mean…

Sorry, let me explain what I mean…

5. Give a short summary of the text.

VI. Listening Comprehension

1. Translate the following words and word-combinations into Ukrainian:

silicon, glass, ceramics, limestone, to embrace, putty, to mould, to ignite, to retain, slaked lime, marl, to roast, kiln, mortar, to harden, to bind, furnace, to cool, viscous, silicate, tamping cement, high alumina, foamed glass.

2. Mask the text “Silicate Industry” and listen to it attentively: Text b. Silicate Industry

The industry processing the natural compounds of silicon is called the silicate industry. It embraces the production of cement, glass and ceramics.

The production of ceramic goods is considered to be based on the property of clay when mixed with water to form putty from which articles can easily be moulded. When these articles are dried and then baked, that is, ignited at a high temperature, they become hard and their shape, no longer being softened by water.

In this way clay mixed with water and sand is moulded into bricks, which are then dried and baked. The materials used to make silicate bricks are white sand and slaked lime.

Cement Production. Cement is made from limestone and clay, or from their natural mixture marl; the materials roasted in cylindrical rotary kilns are charged into a slowly rotating kiln at its upper end and travel, mixing continuously, towards the lower end, while a current of hot gases, the products of the burning of fuel, flows in the opposite direction. During the period of their movement through the kiln the clay and the limestone react chemically, and the material emerging from the kiln in lumps of a caked mass is cement, which is then ground.

There are different types of cement: tamping cement for oil and gas wells; high alumina cement, which is very resistant to chemical attack, Portland cement, used in the construction of lightened structures with large spans; blast-furnace slag cement, coloured cement.

When cement is mixed with water, it forms mortar, which hardens, binding various objects, such as bricks or stones, very firmly. It is for this reason that cement is used widely as a binding material in large scale construction, including underwater construction. Cement is the most important component of concrete.

Glass Production. The initial materials for the production of ordinary glass are mainly soda Na2CO3, limestone CaCO3, and sand SiO2. A mixture of these substances is heated in a bath-shaped furnace.

When it cools, the liquid mass of glass does not become hard at once. At first it becomes viscous and readily assumes any shape. This property of glass is used in making various articles out of it.

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