Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-07-24

IELTS Writing Task 1 question

 

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.

Student answer (Band 6.0)

The diagram below explains how a biofuel called ethanol is produced.Ethanol releases less carbon dioxide than other fuels.

Using the sunlight and carbon dioxide plants produce energy , which helps them to grow.After growing a certain height, machineries like harvesters are used to harvest the crop.Mainly sugarcane is used in production of the ethanol.After harvesting, the crop is preprocessed and cellulose is extracted from it.

Cellulose is preprocessed in the labaratories to extract sugars.The sugar is treated as a main component in producing ethanol.The ethanol is not directly produced from the sugars , the microbes are added to sugars to make a pure ethanol.The produced ethanol is used in vehicles.Mainly cars, trucks and aircrafts.

These vehicles releases the carbon dioxide to the environment.The carbon dioxide released from these vehicles is much better than the vehicles that emits carbon dioxide using the fossil fuels.Again these carbon dioxide emitted by ethanol vehicles used by tress and plants to produce the energy.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main stages of the ethanol production process, from plant growth to final usage. However, the description is somewhat repetitive and relies on external knowledge rather than focusing strictly on the provided diagram. For instance, the inclusion of 'ethanol releases less carbon dioxide than other fuels' is an evaluation rather than a summary of the process itself. To improve, focus on describing the mechanical and chemical transformations shown in the diagram (e.g., harvesting, preprocessing, fermentation) in a more objective, analytical manner. The response identifies the key features but lacks a clear overview or summary statement that synthesizes the cycle effectively.

Coherence and Cohesion — Band 6.5

The response is organized into paragraphs, but the flow between sentences is somewhat mechanical. There is a reliance on simple sentence structures and repetitive transitions. For example, the use of 'After' at the start of multiple sentences creates a predictable and slightly disjointed rhythm. While the logical progression of the process is generally easy to follow, the use of cohesive devices is limited and sometimes repetitive. To reach a higher band, try to vary the way you link ideas, using a wider range of cohesive devices such as 'subsequently', 'following this', or 'once the process is complete' to improve the flow.

Lexical Resource — Band 6.0

The vocabulary is adequate for the task but lacks precision and variety. There are some spelling errors, such as 'labaratories' and 'tress'. The range of vocabulary is somewhat basic, relying on simple verbs like 'used' and 'produced' repeatedly. While the terminology related to the process (e.g., 'cellulose', 'microbes', 'sugarcane') is relevant, the overall lexical control is limited. To improve, try to incorporate more sophisticated synonyms and ensure accurate spelling. For example, instead of repeating 'produced', use terms like 'manufactured', 'generated', or 'synthesized' to demonstrate a broader range.

Grammatical Range and Accuracy — Band 6.0

The response uses a mix of simple and some complex sentence structures. However, there are frequent grammatical errors, particularly with article usage ('the ethanol', 'the carbon dioxide') and subject-verb agreement ('these vehicles releases', 'these carbon dioxide emitted... used by tress'). Punctuation is also inconsistent, with missing spaces after periods and commas. While the meaning is generally clear, these errors occur throughout the text. To improve, focus on mastering basic subject-verb agreement and article usage, and ensure that complex sentences are constructed with greater accuracy to avoid these persistent errors.

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