专业英语四级听力听写在线练习二十一
时间：2021-01-06 练习：次
Passage Twenty-one
Listen to the following passage.
Altogether the passage
will be read to you four times.
During the first reading,
which will be done at normal speed,
listen and try to understand the meaning.
For the second and third readings,
the passage will be read
sentence by sentence,
or phrase by phrase,
with intervals of 15 seconds.
The last reading
will be done at normal speed again
and during this time
you should check your work.
You will then be given ONE minute
to check through your work once more.
Please write the whole passage
on ANSWER SHEET ONE.
Now listen to the passage.
Water Pollution
Water pollution is an undesirable
change in the state of water, /
polluted with harmful substances. /
It is the second most important
environmental issue
next to air pollution. /
Any change
in the physical, chemical or biological
properties of water /
will have a harmful effect
on living things. /
Water pollution affects
all the major water bodies
of the world /
such as lakes, rivers, oceans
and groundwater. /
Polluted water is unfit for drinking
and for other consumption processes. /
It is also not suitable
for agricultural and industrial use.
The second and third readings.
You should begin writing now.
Water pollution is an undesirable
change in the state of water, /
Water pollution is an undesirable
change in the state of water, /
polluted with harmful substances. /
polluted with harmful substances. /
It is the second most important
environmental issue
next to air pollution. /
It is the second most important
environmental issue
next to air pollution. /
Any change
in the physical, chemical or biological
properties of water /
Any change
in the physical, chemical or biological
properties of water /
will have a harmful effect
on living things. /
will have a harmful effect
on living things. /
Water pollution affects
all the major water bodies
of the world /
Water pollution affects
all the major water bodies
of the world /
such as lakes, rivers, oceans
and groundwater. /
such as lakes, rivers, oceans
and groundwater. /
Polluted water is unfit for drinking
and for other consumption processes. /
Polluted water is unfit for drinking
and for other consumption processes. /
It is also not suitable
for agricultural and industrial use.
It is also not suitable
for agricultural and industrial use.
The last reading.
Water Pollution
Water pollution is an undesirable
change in the state of water, /
polluted with harmful substances. /
It is the second most important
environmental issue
next to air pollution. /
Any change
in the physical, chemical or biological
properties of water /
will have a harmful effect
on living things. /
Water pollution affects
all the major water bodies
of the world /
such as lakes, rivers, oceans
and groundwater. /
Polluted water is unfit for drinking
and for other consumption processes. /
It is also not suitable
for agricultural and industrial use.
Now you have one minute to chaeck through your work
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