IELTS Writing Correction Service
Writing Samples
Band 5.5

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

The diagram illustrates the process of electrical energy generation in a hydroelectric power station.
Overall
Linking Words
, the station works during the day when demand is high and at night when demand is low. It
also
Linking Words
 involves
movement
Correct article usage
the movement
show examples
 of
water
Use synonyms
 from a
high- level
Use the right word
high-level
show examples
reservoir
Use synonyms
 to a low-level
reservoir
Use synonyms
.
Water
Use synonyms
 from a river is collected into a high-level
reservoir
Use synonyms
 behind a dam. During the day, the intake gate is opened for
water
Use synonyms
 to flow downhill through large pipes to the power station. As the
water
Use synonyms
 passes through reversible turbines, the generator is activated to produce electricity, which is
subsequently
Linking Words
 distributed through power lines to the national grid. The
water
Use synonyms
 is later stored in the low-level
reservoir
Use synonyms
. When electricity demand decreases
in
Change preposition
at
show examples
the
Correct article usage
apply
show examples
night,
water
Use synonyms
 from the low-level
reservoir
Use synonyms
 is pumped uphill by the reversible turbines back into the high-level
reservoir
Use synonyms
 at the back of the dam with the intake gate closed.

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Common mistake: Your writing should be 150-250 words.
Basic structure: Change the third paragraph.
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Vocabulary: Replace the words water, reservoir with synonyms.
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Vocabulary: Only 3 basic words for charts were used.
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Vocabulary: Use several vocabularies to present the data in the second paragraph.
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Vocabulary: Use several vocabularies to present the data in the third paragraph.
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