I. Какое из данных утверждений выражает основную идею теста.

1. Lodygin’s contribution to the development of incandescent lamps.

2. Advantages and disadvantages of different lamp filaments.

3. The efficiency of incandescent lamps.

II. Соответствуют ли данные утверждения содержанию текста.

1. Lodygin worked in the field of electrical engineering.

2. Lodygin combined military service with studying engineering.

3. Lodygin was the first to use the incandescent lamp for lighting.

4. Two great inventors played a prominent part in the development of the incandescent lamp.

5. The Russian government supported Lodygin because of the importance of his invention.

III. Есть ли в тексте ответы на поставленные вопросы? Если да, то укажите номер абзаца, в котором находится ответ.

6. What another Russian scientist worked in electrical engineering?

7. Who is the founder of the modern incandescent lamp?

8. Did Lodygin want to serve in the army?

9. What was the structure of the first lamps?

10. How many electrodes did an improved lamp have?

11. Where was the invention demonstrated?

12. In what countries was this invention also demonstrated?

13. Was Lodygin satisfied with the result of his work?

14. What famous American inventor worked at the improving the lamp?

15. Did Lodygin patent his invention?

IV. Ответьте письменно на вопросы к тексту.

1. When did Lodygin demonstrate his invention?

2. When and how did Edison learn about the Lodygin’s lamp?

3. What metal is used for filaments now?

V. Переведите письменно 3 и 4 абзацы. Контрольная работа № 5 Вариант b

Для выполнения данной контрольной работы рекомендуется найти по словарю значения заданных слов и словосочетаний, постараться их запомнить, а затем перейти к выполнению контрольной работы.

device, to express, to perfect, to transmit, distance, to warn, to approach, society, transmission, wireless, importance, to appear, to claim, means, namely, reception, audible, by means of, successful, to complete, to acknowledge, representative, profit, commercial, achievement, to appreciate, to carry out, significance, instead, assistance, to attach.

Лексика

1. Выберите русское словосочетание, соответствующее данному английскому.

   1.	in the same year	a) в том же году b) в следующем году
   2.	proved of great importance	a) доказало огромную важность b) оказалось очень важным
   3.	means of communication	a) посредством связи b) средства связи
   4.	drew attention of many countries	a) привлекло внимание многих стран b) обратили внимание на многие страны

2. Из данных слов выберите то, которое закончит предложение. 5.Popov gave his country the best of his ….

a) assistance b) knowledge c) significance

6. Russian scientists further developed and … the radio.

a) improved b) recorded c) attached

7. By his … Popov made a great contribution to the development of communication.

a) reception b) transmission c) invention

8. The receiver … waves generated by lightning discharges.

a) recorded b) described c) expressed

9. Radio devices have made it … to obtain information about mysterious phenomena.

a) rapid b) possible c) important

3. Из предложенных слов выберите то, которое наиболее близко передает значение подчеркнутого.

10. Popov made an apparatus which became the greatest means of communication.

a) device b) invention c) achievement

10. He laid the foundation for further progress in the field of radio-engineering.

a) result b) experiment c) branch

10. The day when the invention was demonstrated is the date of the birth of the radio.

a) provided b) shown c) completed

10. The methods of radio-engineering are now used in various fields of science.

a) different b) immense c) important

10. The words “Heinrich Herz” were transmitted by wireless telegraphy in Morse code.

a) made b) realized c) sent

4. Подберите к началу предложения из колонки А окончание предложения в колонке В. полученные предложения переведите.

15.	The story of radio begins	a)	was constructed near Moscow.
16.	Popov lived and worked	b)	studied with the help of radio.
17.	Distant areas of the Universe are	c)	with Joseph Henry, an American physicist.
18.	In 1920 a powerful radio telephone station	d)	made of some kind of radio equipment.
19.	There is no branch of science where use is not	e)	under very hard conditions.