Виконання вправ на закріплення граматичної теми

Вправа 7. Перекладіть українською.

1.We can employ solar energy directly to produce useful electric energy and heat. 2. To provide a proper maintenance of farm machines is important for the farmer. 3. He is happy to become an electrician. 4. I want to tell you about labour protection at this enterprise. 5. A transformer is used to change the voltage of the electrical energy in the circuit.

Вправа 8. Поставте запитання до підкреслених слів.

1.To take independent decisions by farms is the basis of cost accounting. 2. To make their enterprises profitable farmers use cost accounting. 3. The main aim of any agricultural enterprise is to decrease the production cost of farm produce. 4. Farm labourers are to be paid according to the work done. 5. Land is known to be the main resource for agricultural production.

Вправа 9. Перекладіть речення українською мовою на вживання. конструкції it takes/took/will take (smb) … to V

1. It takes time to learn a foreign language. 2. It took him four years at the technical school to become a techinian electrician. 3. It takes four or five years to get a university education. 4. How long will it take to get to Westminster Abbey from here? – It may take about an hour.

Заняття № 29

Тема: Електричне коло та його елементи. Умовні графічні позначення елементів електричного кола

Граматичний матеріал: Інфінітив

В права 1. Прочитайте та перекладіть лексику за допомогою словника.

еlectric circuit [ɪˈlektrɪk ˈsə:kɪt]

сell [sel]

device [dɪˈvaɪs]

conductor [kənˈdʌktə]

terminal [ˈtə:minəl]

for brevity [fə ˈbrevəti]

on the contrary [ˈɔn ðə ˈkɔnˌtreri] closed loop [ˈkloʊzd ˈluːp]

stream [ˈstriːm]

electric charge [ɪˈlektrɪk ˈtʃɑ:dʒ]

with respect to [ˈwɪð rɪˈspekt tə]

external circuit [ekˈstə:nəl ˈsə:kit]

coincide [ˌkoʊənˈsaɪd]

Вправа 2. Прочитайте односкладові слова.

a) gas, crank, cam, pan, place, take, make, date, late, part, spark, start, mark, vary, care, share;

b) long, rod, block, on, top, so, go, stroke, close, those, open, force, form, for, bore, more, loop;

c) cell, them, end, help, press, be, he, me, we, these, term, serve, here, mere, sphere;

d) pump, but, up, clutch, use, cube, tube, burn, turn, pure, cure; wire.

Вправа 3. Прочитайте двоскладові слова з наголосом на першому складі.

Сharge, basic, bottom, enter, force, filter, follow, many, current, system, motor, source.

Вправа 4. Прочитайте двоскладові слова з наголосом на другому складі.

Аbsorb, below, connect, expand, include, receive, provide, reduce, result, support.

Вправа 5. Прочитайте та перекладіть текст.

The Electric Circuit and Its Elements

Simple Electric Circuit

The simplest electric circuit consists of a source of energy, or power source (a primary cell, accumulator, or generator), a receiver of energy (an electric lamp, electric heating device, or electric motor), and two conductors connecting the receiver and power source terminals. The power source (or, for short, the source) transforms mechanical, chemical, terminal, or other energy into electromagnetic energy, which, for brevity, is often simply called electric energy; the energy receiver (or simply receiver), on the contrary, transforms the electric energy to other forms of energy: radiant, thermal, mechanical and so on. The power source together with the conductors and receiver (load) connected to it form a closed loop, along which an uninterrupted stream of electric charges (an electric current) flows. This is called an electric circuit. With respect to the source, the conductors and receiver (load) form so – called external circuit.

The direct cause of flow of electric current in a circuit is the electromotive force (emf) of the power source. Conventionally, the direction of the current in the circuit is taken to coincide with the direction of the emf. The terminal of the sourcethrough which the current “leaves” for the external circuit is called positive (+) and the terminal through which the current enters the source from the external circuit, the negative (-).

Вправа 6. Прочитайте та перекладіть інтернаціоналізми.

Electric, element, energy, accumulator, generator, lamp, motor, transform, thermal, mechanical, electromagnetic, positive, negative.

Вправа 7. Утворіть за допомогою суфікса - ion іменники від дієслів та перекладіть.

To connect, to act, to rotate, to complete, to conduct, to coordinate, to transmit.

Вправа 8. Виберіть правильні твердження.

1. The simplest electric circuit consists of source of energy, a receiver of energy and two conductors. 2. The power source transforms the electric energy into mechanical, chemical, thermal energy. 3. The energy receiver transforms the other forms of energy to the electric energy. 4. The power source, the conductors and receiver form an electric circuit. 5. The power source and receiver form the so – called external circuit. 6. The direction of the current in the circuit doesn’t coincide with the direction of the emf. 7. The terminal of the source through which the current “leaves” for the external circuit is called positive. 8. The terminal through which the current enters the source from the external circuit is called negative.

Вправа 9. Складіть речення з поданих слів і перекладіть їх українською.

1. Is, a, measure, force, of, electromotive, volt.

2. Physicist, a, George, was, Ohm, German.

3. Conductor, is, silver, best, the.

4. Study, we, elements, the, circuit, of, electric.

Вправа 10. Дайте відповіді на питання.

1. What does the simplest electric circuit consist of? 2. What energy does the power source transform mechanical, chemical, thermal energy into? 3. What forms of energy does the receiver transform the electric energy to? 4. What forms an electric circuit? 5. What forms the so – called external circuit? 6. What terminal is called positive (+)? 7. What terminal is called negative (-)?

Вправа 11. Умовні графічні позначення елементів електричного кола.