Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-04

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 flow chart illustrates the diagrammatic representation of the production of Ethnaol. Moreover, it also gives a visual overview of how Co2 is recycled in atmosphere.

Overall, the process begin with the energy consumption by plants that are later harvested and after series of processing ethanol is produced. Furthermore, the carbon dioxide emitted in atmosphere is recycled by plants.

The process begin with the absorbption of carbon dioxide and and sunlight by the plants.These trees are later harvested. Prior to the formation of cellulose the plants are passed through the pre-processing step and eventually the cellulose is processed.

This processed cellulose produces sugars on which microbes ferment and subsequently ethanol is produced. Furthermore, this ethanol is consumed by various vehicles as a fuel and Co2 is emitted in atmosphere. However, this carbon dioxide emission is recycled as plants thrive on this gas and utilize it as a source of energy for the next cycle.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main stages of the ethanol production cycle, including the growth of plants, processing, fermentation, and the subsequent use of fuel and carbon recycling. However, the description is somewhat generic and lacks a clear focus on the technical 'main features' of the diagram. For instance, the transition from 'pre-processing' to 'cellulose' and then to 'sugars' is mentioned, but the specific mechanisms (like fermentation) could be described with more precision. The overview is present but could be more integrated into the flow of the report. The response successfully identifies the cyclical nature of the process, which is a key feature of the diagram.

Coherence and Cohesion — Band 6.0

The response is organized into logical paragraphs, with an introduction, an overview, and body paragraphs detailing the process. Cohesive devices such as 'Moreover', 'Furthermore', and 'However' are used to link ideas. However, some transitions feel slightly mechanical, and the flow between sentences could be smoother. For example, the sentence 'The process begin with the absorbption of carbon dioxide and and sunlight' contains a repetitive 'and', which disrupts the flow. Paragraphing is used appropriately to separate the overview from the process description, aiding the overall readability of the report.

Lexical Resource — Band 6.0

The vocabulary is generally adequate for the task, using terms like 'cellulose', 'ferment', and 'recycled'. However, there are several spelling errors, such as 'Ethnaol' (ethanol), 'absorbption' (absorption), and 'Co2' (CO2). These errors are noticeable but do not prevent the reader from understanding the process. To reach a higher band, the student should aim for more precise terminology regarding the industrial stages shown in the diagram and ensure accurate spelling of technical terms.

Grammatical Range and Accuracy — Band 6.0

The response uses a mix of simple and complex sentence structures. There are several grammatical errors, such as subject-verb agreement issues ('The process begin' instead of 'begins') and punctuation/spacing errors (e.g., 'and and'). While these errors are frequent, they do not impede communication. The use of complex sentences is attempted, but the accuracy is inconsistent. Improving control over basic verb tenses and proofreading for minor slips would significantly enhance the quality of the writing.

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