With PERFECT INFINITIVE

1. The idea of such building materials might have been borrowed from the ancient Greeks.

2. It is surprising, therefore, that after the fall of the Roman Empire, so much of the great knowledge should have disappeared so completely.

3. This piece of wood should have been cut and shaped by the machinists.

4. To my mind, we should have done everything to prevent them from becoming our enemy.

5. Their decision might have been caused by circumstances.

Exercise6. Point out the purpose of the objects according to the model.

EXAMPLE: A: This paper describes important properties of new

engineering materials.

B: The purpose (aim, goal, object) of this paper is to

describe properties of new materials.

1.This experiment establishes the relations between these two quantities.

2.The article deals with the prospects for electric road cars.

3.This book gives the description of the electrical instruments in the car.

4.His report presents some information on the new fuel system.

5.The speedometer is used to indicate the speed of a car.

6.The filter is used to clean petrol.

Exercise7. Define the functions of these objects: a petrol tank, a robot, the Internet, a carburetor, a battery, a vehicle, a laser, a ruler, a tachometer.

EXAMPLE: The function (purpose) of a speedometer is to indicate the speed

of a car.

Exercise8. The two sentences have a different structure but the same meaning. Change the structure of the sentences so as to keep their meanings unchanged.

EXAMPLE:A: The substance that should be analyzed is of great value.

B: The substance to be analyzed is of great value.

1. The equipment that should be installed in the workshop has specific use.

2. The petrol that should be delivered from the petrol tank should be clean.

3. The new battery that should be used in the car is very effective.

4. The new car devices that should be developed have several advantages.

5. The car emissions that should be controlled are very harmful to the environment.

6. The automobile that should be developed will run on hydrogen.

Exercise9. Restore the original sentences.

1. the carburetor, the function of, petrol, is, to break up, fine particles, into

2. the instruments, to be located, with important information, the instrument panel, provide, the driver, on

3. the petrol, should be, clean, to be delivered, to the carburetor

4. the hydrometer, is, the condition of the battery, the function of, to check

5. to be performed, very important, the functions, are, by this device

6. is, the new fuel system, in this car, completely, of a new design, to be employed

Exercise10. Correct mistakes.

1. The aim of an instrument panel is provide the driver with certain information.

2. When the driver notices some fault it essential to repair it at once.

3. The function of the tachometer to indicate the engine speed in revolutions per minute-

4. The speed limit to was adopted in populated areas is 30 mph. 5.1 have a battery to recharging.

6. Drivers must don't speed, especially when they see speed limit signs.

7. The properties to studied may be of great value.

8. You must go to the service station in order repair the brakes.

Exercise11. Translate the sentences into English using your active vocabulary.

1. Моя задача заключается в том, чтобы найти неисправность в этом приборе.

2. Функция этого прибора - измерять давление в системе.

3. Статья дает следующую информацию: назначение карбюратора - дозировать количество бензина, который должен смешиваться с воздухом.

4. Новая топливная система, которую нам нужно разработать, будет иметь ряд преимуществ.

5. Важно помнить, что карбюратор может быстро засориться, если в бензине есть частицы мусора.

6. Известно, что функция фильтра - очищать бензин от сора и пыли.

7. Если в бензобаке мало топлива, на панели загорится предупреждающая лампочка.

8. Вот термостат, который нужно заменить.

9. Функциями термостата являются обеспечение быстрого нагрева двигателя и предотвращение его остывания в рабочем режиме.

Поиск по сайту: