Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-17

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 illustrate how ethanol is produced and used in a cyclinal process. It highlight the various stages invovled in the manufacturing process.

overall, it a evident that the process involves a series of steps, starting from plants and trees grow and culminating in releasing carbon dioxide that is reabsorbed by new plats.

Initially, the process begins with plants and trees grow by taking in energy from sunlight and carbon dioxide, before being harvested using from machinery. This is followed by pre-processing, where harvested plants are processed into the cellulose. Subsequently, the celloulose is transferred to a chemical processing facility where it is converted into simple sugar

In the subsequent stages, microbes are added to the sugars to carry out fermentation, which turns them into liquid ethanol fuel. Following this, the ethanol is used to power vehicles such as cars, trucks, and airplanes. Finally, the process culminates in vehicles releasing carbon dioxide back into the atmosphere, which is then absorded by growing plants to repeat the cycle.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The student successfully addresses all parts of the task by reporting the main features and stages of the biofuel production cycle. The overview paragraph effectively highlights that the process is cyclical and involves manufacturing ethanol and releasing carbon dioxide to be reabsorbed. Key steps are identified sequentially, from energy intake and plant growth to harvesting, pre-processing, chemical conversion into sugars, fermentation via microbes, and final consumption by vehicles. While there are some awkward lexical expressions, the overall information is accurately selected and well-grounded in the provided visual data, meeting the requirements for a Band 6.5 or 7.0.

Coherence and Cohesion — Band 6.0

The response demonstrates a clear logical organization with an introduction, an overview, and body paragraphs that follow the chronological order of the process diagram. Cohesive devices are employed adequately to guide the reader through the stages, using transitions such as 'Initially', 'This is followed by', 'Subsequently', and 'Finally'. Paragraphing is used appropriately to separate the introduction and overview from the detailed process steps. However, some minor referencing or linking flaws appear, such as in the opening paragraph ('it a evident'), which keeps the score at a solid Band 6.5.

Lexical Resource — Band 6.0

The student uses an adequate range of vocabulary suitable for describing a process, incorporating terms like 'manufacturing process', 'cellulose', 'fermentation', and 'atmosphere'. However, there are noticeable spelling and word-form errors throughout the text, such as 'cyclinal' instead of 'cyclical', 'highlight' instead of 'highlights' (subject-verb agreement), 'invovled', 'plats', and 'absorded'. Furthermore, phrasing like 'plants and trees grow' is repeated awkwardly as a noun phrase in the body paragraph. These lexical and spelling inaccuracies reflect a Band 6 level.

Grammatical Range and Accuracy — Band 6.0

The writer attempts a mix of simple and complex sentence forms, utilizing relative clauses and time-sequence markers effectively. However, there are several grammatical errors and awkward structures present. For instance, 'The diagram illustrate' lacks proper subject-verb agreement, 'overall, it a evident' contains a typo/grammatical slip, and 'harvested using from machinery' contains redundant prepositions. Despite these errors, meaning is rarely impeded, and the sentence structures remain generally clear, placing the performance comfortably within the Band 6 descriptor.

See this exact question answered at other band scores — the same prompt compared across bands.

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