Exercise10.Read and translate the text (control reading of the text). Find a suitable title for it. Translate Russian words into English

Man's earliest structures (защищать) him from the weather, from (дикие животные) or from the attacks of other men. Since that time (искусство строительства) has changed greatly, but its main object has remained protection. Now we are living in the age of machinery, (научные достижения), of the discovery of new sources of power and (новые материалы). The three main materials are concrete, together with ferroconcrete (or reinforced concrete), steel and new kind of (стекло).

Modern (архитектура) is mainly the architecture of steel and concrete. The outer wall and the (крыша) have lost their old importance. They are no longer structural. In the (современный) building it is the floor and its supports that are structural. The use of steel framework has made it possible to construct tall (здание).

The walls which no longer have to support the structure, can be of any kind of material. It is possible (строить) a factory in which the (стены) are made of any shape we like. The roofs may be (плоский). Changes in the interior of buildings have also been made. Electric light, (центральное отопление), air-conditioning, refrigeration and all kinds of labor-saving devices have been installed. We have all these things for some time. And our modern homes have become much more comfortable than the (дом) of the past.

Exercise 2.Answer the following questions:

1. What is the main object in the art of building?

2. In what age are we living?

3. What are three main materials used in constructions now?

4. What form can the roofs have now?

5. What changes have been made in the interior of houses.

Exercise 3.Make up sentences with the words and expressions:

protection, scientific achievements, comfortable, discovery, to be permitted.