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Ethanol fuel from corn: IELTS Task 1 answer #1, band 7.0

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.

158 words. Marked by Axiom on 18 November 2024. 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 1158 words

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

The diagram illustrates the process of ethanol fuel production. Overall, the process entails 8 steps. Corn is first delivered to a storing site, and then , which then is treated and stored, before being delivered to a fuel station.

  1. Lexical resource

    Revisedit is ground in a mill

    'Grinned' is incorrect; 'ground' is the correct term.

In the beginning of the process, corn is delivered to a factory where it is stored in large containers. Then it is turned into corn flour in the automated mill.

  1. Grammar & accuracy

    RevisedThe corn flour is mixed with water, cooked for 4 hours, and then fermented for 48 hours.

    Ensures parallel structure in the sentence.

  2. Coherence & cohesion

    RevisedThe fermented mixture is then transferred to a flask, where it is separated into a liquid and a solid by-product.

    Improving sentence structure enhances clarity.

In the next stage, Finally, the necessary amount of ethanol is transported by trucks to the fuel stations.

  1. Lexical resource

    Revisedthe liquid travels through pipes to a purifying machine.

    Remove 'the' for grammatical accuracy.

  2. Lexical resource

    RevisedHere, it undergoes purification for 5 hours.

    More precise vocabulary improves clarity.

  3. Coherence & cohesion

    RevisedOnce the ethanol is purified, it is stored in cylindrical containers.

    Clarifies the transition from purification to storage.

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 7.0/ 9

The essay follows a logical sequence and effectively describes the process of ethanol production. However, some transitions between steps could be smoother.

Suggestions

  • Use clearer transitions between steps.
  • Ensure all steps are consistently detailed.

Sentence revisions 3

  • RevisedCorn is first delivered to a storing site, and then it is ground in a mill.

    The transition between storing and milling could be smoother for better flow.

  • RevisedThe fermented mixture is then transferred to a flask, where it is separated into a liquid and a solid by-product.

    Improving sentence structure enhances clarity.

  • RevisedOnce the ethanol is purified, it is stored in cylindrical containers.

    Clarifies the transition from purification to storage.

Grammar & accuracy

Band 6.0/ 9

The essay demonstrates a range of grammatical structures with some errors.

Sentence revisions 3

  • RevisedCorn is first delivered to a storage site, and then it is ground in a mill.

    Corrects verb form and noun choice.

  • RevisedThe corn flour is mixed with water, cooked for 4 hours, and then fermented for 48 hours.

    Ensures parallel structure in the sentence.

  • RevisedOnce the ethanol is ready, it is stored in cylindrical containers.

    Streamlines the sentence for clarity.

Lexical resource

Band 7.0/ 9

Appropriate vocabulary is used, but there are minor errors in word choice.

Sentence revisions 3

  • Revisedit is ground in a mill

    'Grinned' is incorrect; 'ground' is the correct term.

  • Revisedthe liquid travels through pipes to a purifying machine.

    Remove 'the' for grammatical accuracy.

  • RevisedHere, it undergoes purification for 5 hours.

    More precise vocabulary improves clarity.

Task achievement

Band 8.0/ 9

The essay effectively describes the ethanol production process and covers all main steps.

Suggestions

  • Ensure all steps are equally detailed for completeness.

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