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The diagram below shows how electricity is generated in a hydroelectric power station. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The process shows how electricity is generated in a hydroelectric power station. In general, the diagram can be broadly separated into day and night stages with the daylight stages involving the generation of electricity from a river and storage of water in a reservoir. At night the water flows back in the other direction towards an initial reservoir and the river. The first stage of the process involves channelling the river into a high-level reservoir backed up by a dam. There is an intake area leading to the power station that is open during the day and closes at night. Water flows during the day to generate electricity through the power station turbines and the resulting electricity is sent to a national grid through power lines while the water then continues to a low-level reservoir. The reversible turbines that operate the generator during the day allow the station to pump the water in the low-level reservoir back into the high-level reservoir for use the next day.
The process
This phrase/word (depending on the context) can be potentially replaced with :
shows
how
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electricity
is generated
in a hydroelectric
You use this word too often, consider replacing it with
power
You use this word too often, consider replacing it with
station
.
In general
, the diagram can be
broadly
separated into day and night stages with the daylight stages involving the generation of
You use this word too often, consider replacing it with
electricity
from a river and storage of
You use this word too often, consider replacing it with
water
in a
You use this word too often, consider replacing it with
reservoir
. At night the
You use this word too often, consider replacing it with
water
flows back in the other direction towards an initial
You use this word too often, consider replacing it with
reservoir
and the river.

The
first
stage of the process involves channelling the river into a high-level
You use this word too often, consider replacing it with
reservoir
backed up by a dam. There is an intake area leading to the
You use this word too often, consider replacing it with
power
You use this word too often, consider replacing it with
station
that is
open during the day and closes at night.
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Water
flows during the day to generate
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electricity
through the
You use this word too often, consider replacing it with
power
You use this word too often, consider replacing it with
station
turbines and the resulting
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electricity
is
This phrase/word (depending on the context) can be potentially replaced with :
sent
to a national grid through
You use this word too often, consider replacing it with
power
lines while the
You use this word too often, consider replacing it with
water
then continues to a low-level reservoir.

The reversible turbines that operate the generator during the day
This phrase/word (depending on the context) can be potentially replaced with :
allow
the
You use this word too often, consider replacing it with
station
to pump the
You use this word too often, consider replacing it with
water
in the low-level
You use this word too often, consider replacing it with
reservoir
back into the high-level
You use this word too often, consider replacing it with
reservoir
for
This phrase/word (depending on the context) can be potentially replaced with :
use
the
next
day.

IELTS academic The diagram below shows how electricity is generated in a hydroelectric power station.

Academic
  American English
3 paragraphs
166 words
6.0
Overall Band Score
Coherence and Cohesion: 7.0
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • ?
    Include an introduction and conclusion
  • ?
    Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • ?
    Vary your linking phrases using synonyms
Lexical Resource: 6.0
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 7.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • ?
    Support ideas with relevant, specific examples
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