Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-03

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 5.0)

I would like to start with the initial step of how ethanol is produced. Plants and trees takes energy from sunlight and carbondioxide than they cutted down for harvesting.After Pre-processing the cellulose us extracted from them and refined it with the proper process to extract sugar from it so when it processed well and sugar comes out from it. It mixed with Microbes and it both mixed with each other to make etahnol.Furthermore Ethanol is than goes to cars, trucks, aeroplanes which all three made carbondioxide again and than the whole procedure revised.It is the procedure of Biofuel Production.

First it started with natural process than it went to the machineries so overall this is how ethanol is made.It takes many steps to became in the shape of ethanol and than it sells to cars,trucks and plane drives and makes there procedure smooth although they produces carbondiaoxide again which helps in repeating the whole procedure.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

The response covers the main steps of the biofuel production cycle, but the coverage is partial and lacks a clear, overarching overview of the process. While you mention key stages such as plants taking in energy, harvesting, pre-processing, cellulose extraction, adding microbes, and finally the production of ethanol and carbon dioxide, some details are slightly confused or underdeveloped. For instance, the transition from harvesting to pre-processing is described in a somewhat fragmented way, and the explanation of how carbon dioxide helps restart the cycle is basic. To reach a higher level, you should provide a well-structured overview paragraph highlighting the main features and cyclical nature of the process right at the beginning, and ensure all stages are linked logically with greater precision.

Coherence and Cohesion: Band 4.5

The response shows some basic organisation, but there is no clear overall progression or effective paragraphing. The text is divided into two dense blocks that lack logical paragraph breaks for an introduction, body, and conclusion. Furthermore, cohesive devices are inadequate and repetitive, relying heavily on basic linkers like 'After', 'Furthermore', and 'First'. Referencing is also mechanical and occasionally unclear, such as 'it both mixed with each other' and 'than the whole procedure revised'. To improve coherence and cohesion, you need to group related information into distinct paragraphs and use a wider variety of cohesive devices to smoothly guide the reader through the stages of the diagram without relying on repetitive connectors.

Lexical Resource: Band 5.0

The vocabulary used is limited and barely adequate for the task. You rely on basic words and phrases throughout the response, such as 'make', 'goes to', and 'makes'. There are also several noticeable errors in word choice, spelling, and word form, including 'carbondioxide' (written as one word), 'etahnol', and 'machineries' (machinery is uncountable). While the reader can generally understand the intended meaning, these lexical limitations and spelling slips impede fluency. To achieve a higher band, you should incorporate a wider range of precise, process-specific vocabulary related to manufacturing and science, such as 'convert', 'extract', 'refine', and 'byproduct', while carefully checking your spelling and word forms.

Grammatical Range and Accuracy: Band 4.5

The grammatical structures used are very limited, consisting mostly of simple and attempted complex sentences that contain frequent errors. There are notable issues with verb tenses and forms, such as 'Plants and trees takes' (subject-verb agreement), 'than they cutted down' (incorrect passive voice and past tense), and 'to became' (incorrect infinitive form). Punctuation and sentence boundaries are also problematic, resulting in run-on sentences and comma splices, for example: 'Furthermore Ethanol is than goes to cars, trucks, aeroplanes which all three made carbondioxide again and than the whole procedure revised.' To improve your grammar, you need to work on consistent tense usage, correct passive voice constructions for process descriptions, subject-verb agreement, and accurate punctuation to separate independent clauses.

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