6 Answer the questions about the text below. Letters in the questions refer to the nouns
lettered in the text.Energy is never created or destroyed
/
get this energy back very easily;
it is much easier to obtain more
energy from a fue! ar e!ectricity
than to extract the energy from
the air and theIground outside.If you tum off a a light at the switch, b the room goes dark immediately. c Ught doesn't stay as light for very
long after leaving d the lamp, sa the light in the room has to be continually replaced. What happens to
e the energy that leaves the lamp?
The hot lamp loses energy to the surrounding fair - this is carried away by a g convection current.
The light and infra-red h radiation are absorbed by the wall s and other surfaces, causing them to warm up.
All the energy from the lamp spreads out into the room, causing a very smallitemperature rise.
Almost all the energy that we take from sources su ch as jelectricity, gas, coal and petrol ends up as k heat
in aur surroundings - in the
buildings that we live in, the air
and the outdoors. We cannotCircle the correct answer.a a light (a) means Alight in general Ba lampl something that makes light
b light (c) means Alight in general Ba lamp, something that makes light
c Which of these nouns can we make plural?
A the room (b) B light (c) C the lamp (d) D the energy (e)
Complete these sentences with a singular or piurai form of one of the nouns in the text.
d. .. all over the country will fall rapidly tomorrow, and there is a danger that
the demand for .. .. may cause power cuts in some places.
e ...is made up of nitrogen, oxygen, carbon dioxide and a number of other.
f People in London reported seeing numbers of unusual .. ... in the sky, and many
believed they we re UFOs.1 Make a list of nouns fram this unit that are uncountable in English,
but piurai in your language.
2 Correct the errors in these sentences.
lane had her hairs wt last week. She looks fantastic.
I'm looking for an accommodation near the college.
1'11give you an advice. If I were you, I wouldn't take that job.
Need more practice?Goto the Review on page 192.
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