Контрольная работа "Television" 9 класс

Контрольная работа по английскому языку в 9 классе
1. Read the text and complete it with the phrases (a - g) below.
a) This scans the screen.
b) Live television programmes show you what is happening as it happens.
c) Baird showed his set in 1926.
d) These pass into the TV set.
e) Scientists have been interested in the idea of television since the 1880s.
f) Now nearly every home has one.
g) These tiny flashes of colour build up the picture on your screen.
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.
2. Read the text and mark each sentence after it "T" for true, "F" for false, "NS" for not
Stop talking rubbish about 3D printing
Pick up any technology magazine, and you’ll find sentimental articles about how the world is
going to be completely transformed by 3D printing everyone from Wired to the Economist
has speculated on changes to society that 3D printing will bring. The ability to turn objects into
data to copy physical things has led many people to predict an attack of 3D piracy. It has
been written a lot about the criminal possibilities connected with the machines. Yesterday, the
founder of Makerbot came out to say his product will “fuel the next industrial revolution”.
Having talked to a bunch of manufacturing engineers, I’m not so sure. All the enthusiasm for
the “revolution” seems to come from journalist observers of the 3D printing scene, the
companies offering the “revolutionary technology”, and a handful of Lefty academics thrilled
by the idea of abolishing property. People actually involved in manufacturing are not so sure
that it’s magic. Let’s take a British example.
There was a huge internet furore a few months back when Games Workshop, a British toy
soldier manufacturer, felt it had been the world’s first victim of digital piracy, and issued a
takedown notice on a 3D printing pattern for a vehicle similar to one from its Warhammer
40,000 game. A huge wave of copying, a minefield of intellectual property issues, was
In actual fact, very little of that has happened.
Patterns for model soldiers exist on file-sharing sites like the Pirate Bay. However, the
economics just don’t support pirating on that scale. Unlike, say, pirating music, where the act
of listening is free, printing out models costs money. A box of model soldiers goes for about
£20 online, about £25 in the shops but the plastic to print them out at home currently costs
around £35, and the most common printer the Makerbot costs about £2,000. So an
epidemic of piracy seems unlikely. Printing is also a fairly exacting process it takes time,
effort, and often you get a pile of goo at the bottom of your machine rather than the thing you
wanted. Widespread physical copying won’t happen, in the same way that photocopiers didn’t
lead to an epidemic of photocopying books.
The technology just isn’t there yet even successful prints create models that look like they’ve
been left on a radiator for a few hours. And if it’s not good enough for model soldiers, it’s
certainly not good enough for things with complex moving parts. One engineer told me: You
have to appreciate how expensive and how specialised most factory tooling is. You can run a
3D Printer for six months and never make the same item twice.”
He thought it would be 10 to 15 years before printers able to create factory-quality products
would appear, and those ones able to do in metal would probably never make it into the home.
He did, however, confidently predict being able to print out parts for his BMW on the factory
level ones in a few years’ time, but pointed out that those machines weren’t going to drop
below a million pounds a piece any time soon, and that even if they did, the materials to make
the parts at the right tolerance for a car were incredibly expensive to buy.
None of the current methods of home 3D printing the thermal fusing of plastic filaments,
using UV light to cut polymer resin, depositing glue to bind resin powder, cutting and
laminating paper, or even using a laser beam to fuse metal particles are even close to
reaching the standards a machine would require. It’s all very well to upload weapon parts to
the internet, but without the means to do metal you’ve printed yourself a cool accessory for
your Halloween gangster costume and if you’re stupid enough to press the trigger, it’s more
likely to take your arm off than actually fire a bullet.
It strikes me that 3D printing is the microwave of manufacturing. If you look back at
newspapers from the 1970s, people predicted that microwaves would be the only device in a
kitchen, and that every dish would be microwaved. That never came to pass. Like microwaves,
3D printing will be important, but this isn’t the industrial revolution that techno-libertarians
would have you believe.
1) It seems 3D printing has been spoken and argued a lot about in the press.
1) True 2) False 3) Not stated
2) According to the founder of Makerbot 3D printing will make copying physical things
1) True 2) False 3) Not stated
3) The revolutionary technology of the 3D printing will take place in the 21
1) True 2) False 3) Not stated
4) 3D printing will definitely encourage pirating objects.
1) True 2) False 3) Not stated
5) The quality of 3D copied objects is rather doubtful.
1) True 2) False 3) Not stated
6) It will take a quarter of a century to make 3D printing successful.
1) True 2) False 3) Not stated
7) 3D printing is technologically so difficult that it will never come home.
1) True 2) False 3) Not stated
8) 3D is comparable to microwaving in its history and development.
1) True 2) False 3) Not stated
3. Complete the sentences with the right forms of the words in brackets.
1) In (she) _________ album "A Girl Like Me" the singer wanted to say what a lot of young
(woman) _____________ would like to say but don't know how to express (they)
________________ .
2) During the course of the (eighteen) ________________ century an Englishman, James
Cook, completed not one, but three trips around the world. The (one) ______ trip uncovered
the East coast of Australia and placed the New Zealand Islands firmly on the map.
3) Father. Look, I told you before, I'm not going to buy you a set of drums. It's useless to ask
(I) ______ for (they) __________ .
Son. But Dad, I promise I'll only play (they) ________ while you're sleeping. (Joke)
4) "You call that music?" I suppose this phrase has been uttered from parents to (child)
_____________ since the beginning of time.
5) You will learn to speak English (good) ___________ as you grow (old) _______ .
6) In Britain there are several working steam railways, the (famous) ______________ of
which is undoubtedly the Bluebell Railway.
7) Did anyone help (she) ______ or did she do it all by (she) __________ ?
4. Choose the right form of the verb to make the sentences complete.
1) I can’t give you John’s article now. It (is translated/is being translated).
2) When your granny was a little girl, computer games (were not played/were not being
3) At the moment a new bridge (is built/is being built) across the river.
4) I can’t give you any information about the project. It (is discussed/is being discussed) now.
5) Everybody was busy. The rooms (were prepared/were being prepared) for the arriving
6) We couldn’t get in because the rooms (were painted/were being painted).