Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-18

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 pictorial representation demonstrates the data related to the process involved in the production of ethanol.

Overall, several crucial steps are involved in the production of ethanol. Moreover, the cycle starts when plants grow with the help of sunlight and carbon dioxise but never ends. Thus mean, at end when carbon dioxide comes out from vehicles trees use them as a source of energy.

Initially, process begins when trees use energy (sunlight and carbon dioxide) for proper growth and secondly they get harvested by people through machineries. Moreover, with the pre - processing of plants they get converted into the cellulose and then further processing take place. Afterwards, sugar as a bioproduct get formed and with the help of several microbes it finally get converted into ethanol. Furthermore, it is used to run vehicles then transports release carbon dioxide which is used by plants as a source of enery and this cycle continuous.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response successfully covers all main stages of the process shown in the diagram, from plant growth and harvesting through to pre-processing, conversion to cellulose and sugars, addition of microbes, production of ethanol, and final release and reabsorption of carbon dioxide. An overview is attempted in the second paragraph, identifying that the cycle is continuous. However, some aspects of the explanation are slightly imprecise or repetitive, and the mechanical flow of the process could be highlighted more clearly. Nonetheless, all parts of the visual data are addressed, satisfying the requirements for a Band 6.0.

Coherence and Cohesion — Band 6.0

The response is arranged logically with a clear introduction, overview, and body paragraphs detailing the sequential steps of the process. Cohesive devices are used to link stages, such as 'Initially', 'Moreover', 'Afterwards', and 'Furthermore'. However, referencing and transitions are at times awkward or mechanical, such as 'Thus mean, at end when...' and 'this cycle continuous', which disrupts the natural flow of ideas. Paragraphing is adequate, but overall cohesion suffers from minor clunkiness, fitting the Band 6 descriptor.

Lexical Resource — Band 6.0

The vocabulary used is adequate for the task, incorporating appropriate process-related terms such as 'harvested', 'machineries', 'cellulose', 'bioproduct', and 'microbes'. However, there are noticeable spelling and word-form errors, including 'dioxise', 'continuous' instead of 'continuum' or 'continue', and awkward phrasing like 'pictorial representation demonstrates the data'. Less common lexical items are attempted with mixed success, placing the response securely in Band 6.0.

Grammatical Range and Accuracy — Band 5.5

The student demonstrates a mix of simple and complex sentence forms, including relative clauses and subordinate structures like 'when trees use energy... for proper growth and secondly they get harvested'. There are, however, several grammatical and punctuation errors throughout, such as missing articles ('process begins', 'sugar as a bioproduct get formed'), subject-verb agreement issues ('transport release'), and run-on structures ('Thus mean, at end when...'). These errors occasionally cause minor strain for the reader, but communication is not impeded, aligning with Band 5.5 to 6.0 descriptors.

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

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