IELTS Writing Correction Service
Writing Samples
Band 4

The diagram below shows how a biofuel called ethanol is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how a biofuel called ethanol is produced. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
The diagram illustrates the cycle of production of ethanol from carbon dioxide, which is used as fuel in
transport
Correct article usage
the transport
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sectors
Fix the agreement mistake
sector
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. As the information gathered from
picture
Correct article usage
the picture
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, in the presence of sunlight
Punctuation problem
, plant
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plant
Fix the agreement mistake
plants
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 do the process of photosynthesis by absorbing energy from the sun and
do reaction
Wrong verb form
react
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 with carbon dioxide and
produce
Wrong verb form
producing
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 water and glucose for the growth of
plant
Correct article usage
the plant
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. In
next
Correct article usage
the next
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 step,
farmer
Correct article usage
the farmer
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 does the harvesting of
crop
Correct article usage
the crop
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 and plants
which
Punctuation problem
, which
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convert
Wrong verb form
are converted
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in to
Use the right word
into
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 fine cellulose after passing through
machine
Correct article usage
the machine
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. In the third
step
Add a comma
step,
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 chemists use the cellulose and perform different
reaction
Fix the agreement mistake
reactions
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 in the laboratory for the processing of sugars.
Then
Linking Words
, different microbes are added
into
Change preposition
to
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 saccharides for
production
Correct article usage
the production
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 of ethanol. Ethanol has a use as fuel, in
transports
Replace the word
transportation
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, namely cars, trucks, and the aerospace
.
Check wording
industry.
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 These transports do emission of greenhouse gas carbon dioxide as a toxic pollutant in the environment. The reproduction of CO2 is an interesting point. Because of
production
Correct article usage
the production
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 of
co2
Use the right word
CO2
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 and
emission
Fix the agreement mistake
emissions
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 into
atmosphere
Correct article usage
the atmosphere
show examples
Linking Words
this
Punctuation problem
, this
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 process
named
Wrong verb form
is called
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 as cycle.

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Linking words: Add some linking words.
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Basic structure: Change the third paragraph.
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Basic structure: Change the fourth paragraph.
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Vocabulary: Only 4 basic words for charts were used.
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Vocabulary: Use several vocabularies to present the data in the third paragraph.
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Vocabulary: Use several vocabularies to present the data in the fourth paragraph.
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Topic Vocabulary:
  • procurement
  • raw materials
  • milled
  • surface area
  • fermentable substance
  • enzymes
  • yeast
  • fermentation
  • byproducts
  • isolate
  • purified
  • distillation
  • concentration
  • containers
  • distribution
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