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Ethanol fuel from corn: IELTS Task 1 answer #2, band 6.0

A student’s answer to this repeated IELTS question, shared without their name and marked by Axiom on the four criteria. Select a highlighted passage to see how it could be revised, and why.

152 words. Marked by Axiom on 11 April 2025. Estimated by AI. It isn’t an official IELTS score.

The process this answer describes

Ethanol fuel from corn: the stages in order
  1. Corn
  2. Storing
  3. Milling
  4. Cooking (4 hours)
  5. Fermenting (48 hours)
  6. Separating
  7. Purifying Ethanol (5 hours)
  8. Storing
  9. Transporting

Academic Task 1152 words

The diagram below shows how ethanol fuel is produced from corn.

The given illustration details the process that is used to produce ethanol fuel out of corn.

It begins with corn being stored and finally results in gas stations providing clients with ethanol.

  1. Coherence & cohesion

    RevisedOverall, the process is an eight-stage, man-made, linear sequence.

    Simplified sentence structure for clarity.

After the cooking time is over,

  1. Lexical resource

    RevisedThe process of producing ethanol from corn begins with harvesting and storing the corn before milling.

    Improved lexical choice and sentence structure.

  2. Coherence & cohesion

    RevisedIt then undergoes the cooking step, where water is added, continuing for 4 hours.

    Corrected grammatical error and improved sentence flow.

  3. Grammar & accuracy

    RevisedThe mixture undergoes fermentation, staying inside special machines for 2 days.

    Improved sentence structure for clarity.

In the following stage, the fermented product is put through a stage, where excess liquid is from the solids.

  1. Lexical resource

    Revisedseparated

    Corrected spelling error.

  2. Grammar & accuracy

    RevisedThen comes purification, taking around 5 hours to finally produce ethanol.

    Corrected verb form and spelling error.

  3. Coherence & cohesion

    RevisedFinally, ethanol is stored in trucks and transported to gas stations for use.

    Simplified sentence for better coherence.

Select a highlighted passage to see its suggested revision.

Estimated by AI. It isn’t an official IELTS score.

What Axiom wrote for each criterion: why the answer earned its band, and what to work on next.

Coherence & cohesion

Band 6.0/ 9

The essay follows a logical sequence but lacks clear transitions between some stages.

Suggestions

  • Use linking words to improve flow.
  • Ensure each stage is clearly connected to the next.
  • Avoid repetition of phrases.

Sentence revisions 3

  • RevisedOverall, the process is an eight-stage, man-made, linear sequence.

    Simplified sentence structure for clarity.

  • RevisedIt then undergoes the cooking step, where water is added, continuing for 4 hours.

    Corrected grammatical error and improved sentence flow.

  • RevisedFinally, ethanol is stored in trucks and transported to gas stations for use.

    Simplified sentence for better coherence.

Grammar & accuracy

Band 6.0/ 9

The essay demonstrates a range of grammatical structures but contains some errors.

Sentence revisions 3

  • RevisedIt then undergoes the cooking step, where water is added, and the process continues for 4 hours.

    Corrected verb form and improved sentence structure.

  • RevisedThe mixture undergoes fermentation, staying inside special machines for 2 days.

    Improved sentence structure for clarity.

  • RevisedThen comes purification, taking around 5 hours to finally produce ethanol.

    Corrected verb form and spelling error.

Lexical resource

Band 6.0/ 9

The essay uses a range of vocabulary but includes some spelling errors.

Sentence revisions 4

  • Revisedseparated

    Corrected spelling error.

  • Revisedproduce

    Corrected spelling error.

  • Revisedproducts

    Corrected spelling error.

  • RevisedThe process of producing ethanol from corn begins with harvesting and storing the corn before milling.

    Improved lexical choice and sentence structure.

Task achievement

Band 7.0/ 9

The essay addresses all key stages of the process but lacks some detail and accuracy.

Suggestions

  • Include more details from the diagram.
  • Ensure accuracy in describing each stage.

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