V. Перепишите следующие предложения, определите в них видо-временные формы глаголов и укажите их инфинитив; переведите предложения на русский язык.

1. All the industries use the metal as the perfect material for any purpose.

2. The engineer was at the plant during the failure.

3. The replacement of this defective part will be the next step of the repair.

VI. Прочтите, перепишите и переведите.

ZIRCONIUM

After ten years of laboratory research the engineers obtain zirconium, a new metal "with a bright future". Now factories produce it on a large scale. Its properties make it a useful construction material, especially in the field of nuclear energy. Zirconium is almost as strong as steel, but lighter. It resists strong acids. Zirconium has a very high melting point of 3,350 degrees Fahrenheit (F). It is often higher than that of steels. Most of steels melts below 2,800 degrees Fahrenheit.

Engineers use zirconium in building atomic reactors because it does not absorb neutrons. Chain reactions need them. Zirconium is a valuable material for radio tubes and fluorescent lamps. It gives the hardest gold-based alloy that we know. It can withstand temperatures up to 6,000 F.

Zirconium also brings impurities from the air. Engineers extract it and melt it in a vacuum.

acids - сульфонаты melting point - точка плавления radio tube - эл. лампа

VII. Ответьте на вопрос: What are the properties of zirconium?

КОНТРОЛЬНОЕ ЗАДАНИЕ №1 (Вариант 4) (“АВ”, “ИМ”)

I. Перепишите следующие предложения. Определите по грамматическим признакам, какой частью речи являются слова, оформленные окончанием -s; и какую функцию это окончание выполняет, т.е. служит ли оно:

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