Question

помогите, пожалуйста!даю много балов.
английский язык 9кл.

Television.
Television is a way of sending sound and pictures through the air. (1) ___________
Although John Logie Baird was the first to show how television worked, his success was based
on work by many other scientists from all over the world. (2) __________ The first television
service opened in 1936 in Britain. Colour television began in the United States in 1956.
At first, all television was black and white. Few people owned television sets because they
were very expensive. (3) ______________________________________
Television works by changing light waves into electric signals. This happens inside the TV
camera. A picture of what is happening in front of the camera forms on a special behind the
lens. Behind the screen is an electron gun. (4) _____________________ It moves from left to
right to cover each part of the picture. Each part is turned into an electric signal which is made
stronger, then sent to the transmitter as radio waves. They are picked up by home TV antennas
and changed back into electric signals. (5)________
The TV screen is covered with tiny chemical dots. In a colour set, these are arranged in
groups of three: one red, one blue, one green. At the back there are other electron guns. These
fire a beam of electrons to scan the screen just as the camera gun does. As each electron hits
the screen, it lights up a dot. (6)___________ You do not see lines of coloured flashing lights,
because the electron gun moves too fast for the eye to follow. What you see is a picture of
what is happening in the television studio.
(7)___________ Most programmes are recorded on film or videotape and sent out later.

Answer 1

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Answer 2

1) Scientists have been interested in the idea of television since the 1880s.
2)Baird showed his set in 1926.
3)Now nearly every home has one.
4)This scans the screen.
5) These pass into the TV set.
6)These tiny flashes of colour build up the picture on your screen
7)Live television programmes show you what is happening as it happens