Задание З. Прочитайте предложения, переведите письменно и укажите, в каком предложении использован независимый причастный оборот.

1. A gas can be dissolved in a liquid, the liquid changing its boiling point.

2. When falling the more massive bodies have more inertia to overcome.

3. Having been warmed to 0 ice began to melt.

Задание 4. Прочитайте и переведите письменно текст. ПЕРЕВОД БЕЗ ПЕРЕВОДЧИКА

Ceramics

Ceramics is an applied science dealing with the preparation and application

of a great number of organic chemicals. Until recently ceramic materials were

primarily silicate - bearing compounds. Now they include oxides, graphite,

carbides, borides, silicides, nitrides, and systems compounded of these groups.

Typical ceramic products are pottery, porcelain, enamels, refractories, glass,

insulators, cement, bricks and building materials, abrasives, clay being still the

basis of most commercial ceramic products.

Ceramic products are usually man-made, a number of ceramic products

existing in a natural state, e.g. diamond, graphite, mica and marble. Ceramic

products can be classified by the method of preparation into two groups: sintered

and fused.

1)

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Silica (SiO2) is the main ingradient of most ceramic products. Its most

comnon form is quartz. Kaolin or clay minerals are compounds of silica and other

metal oxides, particularly aluminium and magnesium, and are used in pottery

manufacture. Mica minerals also consist of complex silicates. Mica is used as an

insulator in electrical and electronic equipment.

An extensive technology is now developing around newer ceramics, oxides

having great potential because of their resistance to high temperatures and their

electrical properties. Graphite because of its high melting point and h.igh

temperature strength, is finding wide-spread use in rocket building.

Ferrites (mixed oxides of iron and other metals) have magnetic properties

which are of interest for computer components. Titanates, sapphire, ruby and

garnets are finding application in advanced communication equipment and energy

and power - conversion equipment.

Cermets (combination of metals and ceramics) are becoming important

ceramic systems.

Notes:

1) sintered products - металлокерамические изделия fused products -

плавленые изделия.

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