Better metals are vital to technological progress.

Английский текст
I. Перепишите следующие предложения, определите в каждом из них видовременную форму и залог глагола-сказуемого. Переведите предложения на русский язык.
1. When much materials had been looked through and some problems had been solved, the article was published.
2. Electric cars will be widely used in future.
3. Today plastics are being applied for car bodies.
4. This lecturer is listened to with great interest.

II. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на разные значения слов it, that, one.
1. It is proved that light needs time to travel any distance.
2. One must take part in scientific work.
3. Specialists consider that in future city transport will reject gasoline.

III. Перепишите предложения и переведите их на ...

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Перепишите и письменно переведите 2, 3 и 4-й абзацы. Better metals are vital to technological progress.2. Metals are mostly solid at ordinary temperature and possess comparatively high melting points with the exception of mercury. They are for the most part good conductors of heat and electricity, and silver is the best in this respect. As to their chemical properties the first point to be mentioned is that they vary widely in degree of chemical activity: some are enormously active and others are inert. The Earth contains a large number of metals useful to man. Of all metals to be utilized in industry iron remains by far the most important. Modern industry needs considerable quantities of this metal either in the form of iron or steel.3. To get the desirable characteristics in metals or to improve them the art to mix metals and other substances began to develop. The first alloys that were formed in this way were sometimes stronger, tougher, harder and more elastic than the metals of which they were composed. To estimate nowadays how many alloys there exist in the modern world is difficult because their numbers increase daily.4. To serve special uses modern metals and alloys must be lighter yet stronger, more corrosion-resistant, more suitable for automated fabrication yet less expensive than those available before.VII. Прочитайте 1 и 2-й абзацы текста и ответьте на вопросы письменно.1. What was vital to the advance of civilization? Since the earliest days the preparation of metals for mechanical use was vital to the advance of civilization.2. What metals were the first to be used by a man? Gold, silver and copper were the first to be used by a primitive man.3. Why were they used first? They were found free in nature.4. How many metals are available in large quantities today? Today we know more than sixty-five metals available in large enough quantities to be used in industry.5. What do transportation, communication, construction and manufacturing depend on? Today transformation, communication, construction, farming and manufacturing all depend on the availability of suitable metals and alloys.1. Когда много материала было просмотрено и некоторые проблемы были решены, статья была опубликована. 2. Электрические автомобили будут широко использоваться в будущем. 3. Сегодня пластмасса применяется для корпусов автомобилей. 4. Этого докладчика слушают с большим интересом. 1. Доказано, что свету нужно время, чтобы распространяться на различные расстояния. 2. Надо принять участие в научной работе. 3. Специалисты считают, что в будущем городской транспорт не будет использовать бензин.1.