[ 25 ] Intermediate
Read the following , then answer the questions below :
Scientists have recently turned their attention to natural sources of
energy : the sun , the sea , the wind and the springs . Of these the sun seems
the most promising source for the future . Houses have already been built which
are heated entirely by solar energy . Experiments are being carried out at the
University of Arizona on ways of storing solar energy on a large scale . To
satisfy a large part of the energy needs a country like America , huge power
stations covering 5.000 square miles would have to be built . While experiments
in generating energy from the sea and the wind are interesting neither can be
considered an obvious solution to a future energy crisis : the first because a
lot of energy is needed to generate energy from the sea and the second because
the amount of energy generated from wind would satisfy only a small percentage
of a nation’s needs .
Another
source of energy , which could be more widely used is that generated by hot
water or steam from under the earth [ it is called geothermal energy ] . This
form of energy is already being used in New Zealand , Iceland , Russia and very
successfully in Italy, where it generates a quarter of the nation’s electricity
.
Many
scientists are optimistic that new ways of generating large amounts of energy
will be successfully developed , but at the same time they fear the
consequences . If the world population goes on increasing a its present rate ,
we may in fifty years’ time be burning up so much energy that we would damage
the earth’s atmosphere . By raising the temperature of the atmosphere , we
could melt the Arctic and Antarctic ice-caps and change the pattern of
vegetable and animal life throughout the world – a frightening possibility .
A-] Answer the following questions :
1-] What are the natural sources of energy ?
……………………………………………………………………………………….
2-] What is the University of Arizona doing ?
………………………………………………………………………………………
3-] Why is energy from the sea and the wind can be a solution to a
future energy crisis ?
……………………………………………………………………………………….
4-] In what way is burning up so much energy dangerous ?
……………………………………………………………………………………….
B-] Choose the correct answer :
1-] The frightening possibility is
A-] the increase in generating energy . B-] the solar energy is not
enough . C-] changing the pattern of
vegetable and animal life in the world . D-] generating geothermal
energy .
2-] The increase in the world population leads to
A-] consumption of so much energy . B-] generating large amounts of
energy .
C-] failure to store solar energy . D-] non-pollution of the
environment .
3-] One of the disadvantages of solar energy is
A-] the need to generate it during daylight . B-] storing it on a
large scale .
C-] the need to huge power stations covering large areas . D-] it
does not pollute the environment .