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Man has adapted to life in towns. Here, food is brought to him and sold in shops. Instead of
___1___ a stream, all man has to do is turn on a tap and pure water comes out.
This may seem an easy, pleasant way of living, but there are disadvantages. In the factories and
offices of towns there are many boring, ___2___ jobs that people have to do, staying indoors all
day. There is almost constant noise and a quicker pace of life in towns, which some people find do
them ___3___ . And there is air pollution from factories, the heating systems of houses and the
exhaust gases of cars and lorries, all of which can affect ___4___ . To try to deal with this last
point, many towns have become "smokeless" zones, prohibiting the use of "dirty" fuels, such as
natural coal, with chimneys belching smoke into ___5___ . Also, laws are being passed to stop
factory waste and sewage from ___6___ rivers as they pass through towns, poisoning the water.
As towns get even bigger in size, they spread into what was formerly open country, destroying
much of the wildlife. However ___7___ like the London Green Belt mean that large areas of
countryside round certain cities cannot be built on and are ___8___ forever.
How is it that not all wildlife is destroyed as a town grows in size? Fortunately, a number of
animals, birds and plants can live in the gardens and parks that man has created in the towns for
his own enjoyment. Other wild creatures, where man provides them with food, even if
___9___ ,
have adapted to life where there are no gardens at all. Rats and mice are animals which have done
this, and of the birds, sparrows and pigeons are examples. They make their nests in the roofs, on
ledges and in sheltered corners of buildings, 'but they are, for the most part, birds that show little
fear of man. Others are not so lucky and perish when ___10___ takes over their natural homes.
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