Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-08-26

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 illustrates the process of production of a biofuel which is known as ethanol. Given about Its uses and the effects after using it.

Overall, the proccess shows the cycle of carbon dioxide, from using it to make ethanol and it coming back to the place where it is being taken from.

First and foremost, the energy in the form of sunlight and carbon dioxide is being transferred to plant and trees. Then those trees are harvested for the pre-processing to convert it into the cellulose. Sugar is made by processing the cellulose. Microbes are added to the sugars which leads to the formation of the Ethanol.

The ethanol after the production is used by the many different kinds of transport such as roadways ( cars, trucks) and airplanes in airways. The usage of ethanols in vehichles afterall leads to the production of carbon dioxide. Carbon dioxide atlast return to plant and trees in the form of energy.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main stages of the ethanol production process, from the absorption of sunlight and carbon dioxide to the final combustion in vehicles. However, the description is somewhat basic and lacks the analytical depth required for a higher band. While the main features are identified, the connection between the stages could be more clearly articulated to show the cyclical nature of the process. The introduction is slightly awkward, and the summary of the process is a bit mechanical. To improve, ensure that the relationship between the stages is explained with more precision, focusing on the transformation of materials rather than just listing the steps.

Coherence and Cohesion — Band 6.0

The essay is organised into logical paragraphs, which helps the reader follow the process. Cohesive devices such as 'First and foremost', 'Then', and 'after the production' are used to link ideas. However, some transitions feel a bit repetitive or simplistic. The referencing is generally clear, but the flow between sentences could be improved by using a wider variety of linking words to create a more sophisticated progression of information. The paragraphing is appropriate for the task, but the overall structure could benefit from more varied sentence starters and better integration of the cyclical nature of the diagram.

Lexical Resource — Band 6.0

The vocabulary is adequate for the task, allowing the student to describe the process clearly. Words like 'harvested', 'cellulose', 'microbes', and 'combustion' (implied) are relevant. However, there are some inaccuracies and awkward phrasings, such as 'Given about Its uses' and 'atlast return'. The range of vocabulary is somewhat limited, and there is a reliance on basic verbs. To achieve a higher score, the student should aim for more precise terminology and avoid repetitive phrasing, while also ensuring that word choices are consistently natural and accurate in an academic context.

Grammatical Range and Accuracy — Band 6.0

The response contains a mix of simple and complex sentence structures. While the meaning is generally clear, there are several grammatical errors, such as 'the process of production of a biofuel', 'the energy... is being transferred to plant and trees' (should be 'plants'), and 'usage of ethanols'. Punctuation is generally functional, but there are minor errors in capitalization and article usage. The student demonstrates an ability to use passive voice, which is appropriate for process descriptions, but the control over these structures needs to be more consistent to avoid frequent minor errors.

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