IELTS Writing Correction Service
Writing Samples
Band 5

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.

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The diagram illustrates the
process
Use synonyms
 of generating electric energy in a hydroelectric power station.
This
Linking Words
process
Use synonyms
 can be divided into two parts. Each part consists of several stages. At the beginning, the
water
Use synonyms
 flows from
river
Correct article usage
the river
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 to the high-level
reservoir
Use synonyms
 near the dam. After that,electricity is generated as
water
Use synonyms
 flows through the pipes. At
night
Punctuation problem
night,
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 the system works differently from the daytime
process
Use synonyms
.
Water
Use synonyms
 is pumped back to the high-level
reservoir
Use synonyms
 at night. At night, the
process
Use synonyms
 is reversed. The intake is closed, and the reversible turbines work as pumps.
Water
Use synonyms
 is pumped from the low-level
reservoir
Use synonyms
 back to the high-level
reservoir
Use synonyms
 through the same pipe.
As a result
Linking Words
, the system is ready to generate electricity again the following day.

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Common mistake: Your writing should be 150-250 words.
Basic structure: Change the second paragraph.
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Basic structure: Change the third paragraph.
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Vocabulary: Replace the words process, 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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Topic Vocabulary:
  • hydroelectric power station
  • reservoir
  • potential energy
  • mechanical energy
  • electrical energy
  • turbine
  • generator
  • renewable energy
  • fossil fuels
  • emissions
  • power lines
  • gate-controlled tunnels
  • gravity-driven
  • transformation
  • clean energy source
  • sustainable
  • recycled water
  • mountainous area
  • activate
  • transmit
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