For a long time, noise has been known to cause sleeplessness and irritability. Studies are now linking noise to a wide range of mental and physical disturbances. Researchers found that people living near airports in Los Angeles have higher rates of mental illness than those living further away, and a link has been established between high noise levels and cardiovascular disease and stress-related problems in industry. Experiments on rats exposed to high frequency sounds found adrenaline levels up to 20 times higher than normal. Hearing specialists warn that if urban noise continues increasing at its current rate, within 20 years cities will be twice as loud as now, greatly multiplying the rates of mental and physical illness. This health alert about the dangers of noise pollution is being seriously considered by

1. Text Segmentation
Any comment would be welcomed •

2. a- A sentence which focuses on the general idea is called Topic sentence
b- A sentence which gives details to support/ develop the general idea: is
called supporting sentence
c- A sentence which provides a smooth transition from one idea to
Another is called transitional sentence
d- A sentence which supports the new idea is called supporting sentence
e- A sentence which logically concludes the ideas discussed in the
.Paragraph is called concluding sentence

3. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
. authorities

4. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
. authorities

5. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
. authorities

6. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
. authorities

7. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
. authorities

8. For a long time, noise has been known to cause sleeplessness and
irritability. Now other studies are linking it to a wide range of mental
and physical disturbances. In Los Angeles, researchers have found
that people living near the airports have found that people living near
airports have a higher rate of mental illness than people living eight
kilometres away. In industry, a link has been established between
high noise levels and the high number of cardiovascular disease and
stress-related problems. The effect of noise on people is borne out by
experiments on rats, which show that those exposed to certain high
frequency sounds had up to 20 times the normal amount of adrenalin
in their blood. In the opinion of many hearing specialists, time is
running out. If the urban noise continues to increase at the present
rate, in 20 years, our cities will be twice as loud as they are now. The
number of mental diseases will be multiplied by two or three and that
of physical illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the American public
.authorities

9. For a long time, noise has been known to cause
Topic sentence sleeplessness and irritability. Now other studies are
linking it to a wide range of mental and physical
disturbances. In Los Angeles, researchers have
Supporting found that people living near the airports have found
that people living near airports have a higher rate of
sentences mental illness than people living eight kilometres
away. In industry, a link has been established
between high noise levels and the high number of
cardiovascular disease and stress-related problems.
The effect of noise on people is borne out by
experiments on rats, which show that those exposed
to certain high frequency sounds had up to 20 times
Transitional the normal amount of adrenalin in their blood. In the
sentences opinion of many hearing specialists, time is running
out. If the urban noise continues to increase at the
New idea present rate, in 20 years, our cities will be twice as
loud as they are now. The number of mental diseases
Supporting will be multiplied by two or three and that of physical
sentences illness by three or four. This health alert against the
dangers of noise pollution is seriously taken by the
Concluding .American public authorities
sentences

10. ( WRITE IT OUT ( p.71
a. Throughout the world, deserts create because pastures near arid lands
. heavily graze and trample
b. Around towns, adjacent forest belts denude by people in their search for
. firewood
c. More productive plants introduce into semi-arid lands. As a result,
. indigenous plants necessary for the maintenance of the soil nudge out
d. Many people think that desertification cause only by a change in
. climate, but the truth is that deserts provoke by human actions
e. Because of intensive production of cash crops like cotton and
groundnuts, soil nutrients dissipate and the topsoil erode by wind and
. water
. f. A long time ago, history make in the deserts
g. Today, about 140 million people threaten by the spread of the desert
caused through the interaction of climatic fluctuations and man’s abuse of
. his environment
h. Desertification must stop now, otherwise deserts will transform into a
. curse for man soon
i. These civilizations build in deserts because people knew how to live in
. harmony with nature
. j. At least two great civilizations establish there

11. ( WRITE IT OUT ( p.71
a. Throughout the world, deserts are created because pastures near arid lands
. heavily are grazed and trampled
b. Around towns, adjacent forest belts are denuded by people in their search
. for firewood
c. More productive plants are introduced into semi-arid lands. As a result,
. indigenous plants necessary for the maintenance of the soil are nudged out
d. Many people think that desertification is caused only by a change in climate,
. but the truth is that deserts are provoked by human actions
e. Because of intensive production of cash crops like cotton and groundnuts,
. soil nutrients are dissipated and the topsoil is eroded by wind and water
. f. A long time ago, history was made in the deserts
g. Today, about 140 million people are threatened by the spread of the desert
caused through the interaction of climatic fluctuations and man’s abuse of his
. environment
h. Desertification must be stopped now, otherwise deserts will be transformed
. into a curse for man soon
i. These civilizations were built in deserts because people knew how to live in
. harmony with nature
. j. At least two great civilizations were established there