Решение: Контрольная работа №1. Вариант2.

Задание 1.
Перепишите следующие предложения. Определите по грамматическим при¬знакам, какой частью речи являются слова, оформленные окончанием -s, и какую функцию это окончание выполняет, т. е. служит ли оно:
а) показателем 3-го лица единственного числа глагола в Present Indefinite:
б) признаком множественного числа имени существительного;
в) показателем притяжательного падежа имени существительного
(см. образец выпол¬нения 1).
Письменно переведите предложения на русский язык:
1. Washington is situated on the north bank of the Potomac River.
2. My friend read a very interesting book on Washington’s history last week.
3. The residents of Washington are fond of their city.

Задание 2.
Перепишите следующие предложения, содержащие различные формы срав¬нения, и переведите их на русский язык.
1. The Capitol is the highest building in Washington.
2. The more I thought of that plan, the less I liked it.
3. Your translation is better than mine.

Задание 3.
Перепишите и письменно переведите предложения на русский язык, обра¬щая внимание на перевод неопределенных и отрицательных местоимений.
1. The Capitol contains some 430 rooms.
2. Does he know any foreign language?
3. Any exhibit of this museum is valuable.

Задание 4.
Перепишите следующие предложения; подчеркните в каждом из них глагол- сказуемое и определите его видовременную форму и залог. Переведите предло¬жения на русский язык.
1. Any business may have the form of the partnership.
2. A business corporation is an institution established for the purpose of making profit.
3. When the owners of the partnership have unlimited liability they are called general partners.
4. New instructions have been discussed for two hours.

Задание 5.
Прочтите и письменно переведите на русский язык текст, обращая внимание на профессиональную лексику.

CONDUCTORS AND INSULATORS
Materials can be divided into three groups according to their resistance:
1) Conductors are materials having a low resistance so that current easily passes through them. The most common conductors are metals. Metals are used to make connecting wires, switch contacts and lamp filaments. Silver, copper and aluminum are the best of them. Copper is widely used to produce wire conductors. Wire conductors are used to connect a voltage source to a load resistance. Since copper wire conductors have a very low resistance a minimum voltage drop is produced in them. Most materials change the value of resistance when their temperature changes. Metals increase their resistance when the temperature increases while carbon decreases its resistance when the temperature increases. Thus metals have a positive temperature coefficient of resistance while carbon has a negative temperature coefficient.
2) Insulators are materials having a very high resistance. Cur¬rent passes through insulators with great difficulty. The most common insulators are air, paper, rubber, plastics, polythene and PVC (polyvinylchloride). PVC is widely used as an outer covering for wires to prevent them making contact. Any insulator can conduct current when a high enough voltage is applied to it. The higher the resistance of an insulator, the greater the applied voltage must be. When an insulator is connected to a voltage source, it stores electric charge and a potential is produced on the insulator. Thus, insulators have the two main functions: to isolate conducting wires and thus to prevent a short between them and to store electric charge when a voltage source is applied.
Here is a list of conductors: gold, silver, copper, aluminum, brass, bronze, iron, steel, mercury, graphite, water and insulators: teflon, glass, porcelain, polyvinylchloride (PVC), fiberglass, rubber, ceramic, oil, quartz, plastic, air, diamond, dry wood.
3) Semiconductors are materials having a moderate resistance.
Examples of semiconductors are germanium and silicon.