Unit 16
I. Выпишите из Прил. 1 значения следующих слов, запомните их:
particular (a), split (v), separate (a), respectively (adv), essential (a), flat (a), conventional (a), coating (n), angle (n).
II. Выпивите из Прил. 2 значения следующих терминов, запомните их:
line
channel
picture tube
III. Сгруппируйте синонимы, переведите их:
1. Particular (a), split (v), picture (n), build up (v), separate (a), correct (a), instant (n), consist of (v), essential (a), conventional (a).
2. moment (n), contain (v), break (v), produce (v), right (a), special (a), main (a), traditional (a), individual (a), image (n).
IV. Прочтите текст, выберите подходящее по смыслу слово из представленных в скобках, переведите текст.
The essential principles of colour television are the (same, some) as for black-and-white. At the TV transmitter the illuminated scene is televised (with, which) three TV cameras, each of them provided with an optical filter to transmit a (particle, particular) colour. The colours red, green and blue are used (science, since) all other colours can be reproduced by their combination. The colour outputs of each TV camera are (than, then) combined into two basic (signals, singles) for transmission over the standard channel. One of these signals is called the luminance signal (сигнал яркости ), it contains only the brightness variation of the picture, just as the ordinary video signal. The other signal, called the chrominance signal (сигнал цветности) contains the essential colour information for reproducing a coloured image. At the colour TV receiver, the chrominance signal is combined with the luminance signal in order to recover the red, green and blue video signals. The amplified red, green and blue video signals are (applied, supplied) to a tricolour picture tube for reproduction of the coloured image.
V. Прочтите текст, выделите ключевое приложение каждого абзаца, переведите его. Озаглавьте абзацы.
TELEVISION (2)
1. Colour television makes use of the fact that white light is a mixture of the colours of the spectrum and that all colours can be produced by mixing the three primary-coloured lights, red, green and blue, in the correct proportions. A colour television camera consists essentially of three cameras in one. Filters in the optical system of the camera split the light into its three colour components and each of the coloured images formed in this way is scanned by a separate electron beam. Three separate signals – red, green and blue – are then transmitted from. the television station.
2. There are three electron guns in the tube of the colour receiver. The screen has three different phosphors, each one emitting red, green or blue light. The whole screen contains about half a million dots arranged in groups of three's. The red, green and blue electron guns scan the red, green and blue dots respectively and thus build up a complete colour picture. Black-and-white receivers can use a signal which is equal to the sum of the three colour signals to receive a black-and-white picture of the colour transmission.
(1.200)
VI. Задания к тексту.
Найдите в тексте интернациональные слова, переведите их, не пользуясь словарем. выпишите из текста многокомпонентные определительные словосочетания, переведите их.
Прочтите 1 абзац текста, ответьте на вопросы:
What fact does colour television make use of?
How many cameras are there in a colour television camera?
What is the function of filters in the optical system of the camera?
Прочтите и переведите 2 абзац текста.
VII. Прочтите микротексты, дайте английский эквивалент представленных в скобках слов, переведите микротексты.
The main principles of colour TV are (такой же) as for black-and white. At the TV transmitter the scene is televised (посредством) three TV cameras. Each camera has an optical filter (чтобы) to transmit a particular colour. As we see, there are three cameras (вместо) of one.
2. The flat1 screen, which can be hung on the wall like a picture, may be no more than 2 or 3 inches2 thick. It has а fluorescent coating3 as in conventional tubes, bat the electrons from the cathode move almost parallel with it (вместо) striking it at a right angle. The flat screen will be especially suitable (для) colour reception.
Пояснения к тексту:
flat – плоский
inch – дюйм
coating – покрытие