Минобрнауки России
Федеральное государственное образовательное учреждение высшего профессионального образования
Санкт-Петербургский государственный технологический институт
(технический университет)
Кафедра иностранных языков
И.В. Лобода, С.Б. Теремязева Английский язык
для студентов заочной формы обучения механического факультета
Методические указания
Санкт-Петербург
2012
Стоимость выполнения контрольной работы по английскому языку уточняйте при заказе.
Выполнены следующие работы (стоимость готового уточняйте):
Вариант 4
I. Translate the following text using a dictionary.
HOW TO GENERATE ELECTRIC CURRENT
… To produce a current by thermal action heat is applied to two unlike metals soldered together in two points. The apparatus which causes such a current to be generated is called a thermo-electric couple or thermocouple for short. The reason the thermocouple generates a current is due to the fact that the heat makes the electrons tear off of the negatively charged metal at the point of joint. It is these electrons that form the current flowing through the circuit. Now there exist semi-conductor thermo-elements which without any machinery allow thermal energy to be converted into electrical energy. Falling on a special kind of cell, light can cause an electric current to flow. The device making use of this phenomenon so as to produce electricity is called a photoelectric cell.
Finally, to generate a current by magnetic action, a wire is made to pass through a magnetic field, the latter being set up either by a permanent magnet or an electromagnet, the devices which make the electric current be generated in this way are called ―magneto‖ and ―dynamo‖ machines. (1100 п. зн.)
II. Translate the following sentences:
1. This kind of electrolyte used has no effect on the electromotive force.
2. Further analyses have proved these particles to be doubly charged helium atoms.
3. Being designed with the help of transistors electronic devices consume little power.
4. One of the most valuable uses of ultra-violet rays in industry is testing the quality of equipment.
5. The image being televised is picked up by the TV camera.
6. Our purpose is to determine the effect of X-rays on this substance.
7. The instrument for measuring the temperature of hot flowing metals is similar to that used in our laboratory.
8. Comparing the data obtained by our tests is the only means of solving this problem.
9. Having invented the lightning conductor, Franklin continued working at the problem of atmospheric electricity.
10. Experiments showing the changes in substances are very important for industry.
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