Вариант 5

I. Перепишите следующие предложения, определите в каждом из них видо- временную форму и залог глагола- сказуемого (см. Образец 1). Переведите предложения на русский язык.

1.What are you doing this evening?

2.Competition between firms will lead to the elimination of firms which are unable to change their products and their methods of production.

3.The students were provided with all necessary materials.

4.The engine is made of different metals.

5.Our engineers work hard at this problem.

II. Перепишите следующие предложения; подчеркните в каждом из них модальный глагол или его эквиваленты. Переведите предложения на русский язык.

1.We had to walk home because the last bus had gone.

2.The teacher will have to explain this difficulty again.

3.We shall be able to see a number of Chaplin’s films in September.

4.He was allowed to use the mobile equipment.

5.You should follow all the important scientific researches in your field.

III. Перепишите следующие предложения; подчеркните Participle I и Participle II и установите функции каждого из них, т. е. укажите, является ли оно определением, обстоятельством или частью глагола- сказуемого. Переведите предложения на русский язык.

1.The area of the car works built on the Kama river is almost 1000 hectares.

2.The success or failure of the company will be reflected in the prices.

3.The results obtained were carefully studied.

4.Being the cheapest of the metals cast iron is widely used everywhere.

5.The standard of living is increasing in highly developed countries.

IV. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на функцию инфинитива.

1.Our plan is to find the necessary books in the library.

2.The problem to be solved is of great importance for this branch of science.

3.He has no desire to be appointed to this post.

4.To develop a new method of cutting metals was necessary.

5.This student was the last to render this text in English.

V. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на герундий и его функцию.

1.One of the problems modern research laboratories are working at is the problem of finding materials that can serve as electrical conductors in fusion reactors.

2.Nobody will object their joining us.

3.We are against making the proposal.

VI. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на разные значения глаголов to be, to have, to do.

1.He didn’t take part in the discussion for he was late for the seminar.

2.The furniture is delivered by this term.

3.He had to do it again.

4.The equipment is to be shipped in export sea packing suitable for the of equipment delivered.

5.We had to find new methods of investigation.

VII. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на разные значения слов it, that, one (см. образец 3).

1.That he refused to help his partners is very strange.

2.The new method proved to be much more efficient that the old one.

3.It must have rained last night.

4.Road safety remains one of the most important problems in the modern world.

VIII. Перепишите следующие предложения и переведите их на русский язык, обращая внимание на бессоюзное подчинение.

1.The district you’ll go to is in Siberia.

2.The laboratory you wanted to see is in our Institute.

3.We think that process can be easily mechanized.

4.He said they had returned.

IX.Переведите текст и отработайте его чтение.

Найдите в тексте:

1) глаголы в страдательном залоге;

2) инфинитив;

3) существительные в функции определения;

4) предложения со сравнительной конструкцией the … the … .

Transmission Lines

A power system is an interconnection of electric power stations by high voltage power transmission lines. Nowadays the electricity is trans­mitted over long distances and the length of transmitting power lines varies from area to area.

A wire system is termed a power line in case it has no parallel branches and a power network in case it has parallel branches.

According to their functions, power lines and networks are subdivided into transmission and distribution lines.

Transmission lines serve to deliver power from a station to distribu­tion centers. Distribution lines deliver power from distribution centers to the loads.

Lines are also classed into: 1) overhead; 2) indoor; 3) cable (under­ground).

Overhead lines include line conductors, insulators, and supports. The conductors are connected to the insulators, and these are connected to the supports. The greater the resistance, the higher are the heating losses in the conducting wires. In .order to reduce the losses, a step-down trans­former can be used.

Indoor lines include conductors, cords, and buses. The conductor may include one wire or a combination of wires not insulated from one an­other. They deliver electric current to the consumers.

As to underground lines, they are used in city areas. Accordingly, they are used in cities and towns, and in the areas of industrial enterprises.