Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-05

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 production of Ethanol, a type of biofuel in a cyclic manner. This cycle for biofuel production involve the main stages harvesting and preparing plant in material for processing, producing ethanol by chemical processing, the using fuel transportation, before the cycle begins again.

The process commence with plants and tree growing, utilizing energy from sunlight and carbon dioxide in the atmosphere. Once mature, they are harvested. Subsequently, the harvested materials undergo pre-processing to obtain Cellulose.

The cellulose then enters the processing stage, Here, it is converted into sugars, and with the condition of Microbes,ethanol is produced.

After production, ethanol serves as a fuel for various vehicles such as cars, trucks, and Airplane. During the combination of ethanol in these vehicles carbon dioxide is emitted back into the atmosphere. This carbon dioxide is then available for plants and trees to use in their growth process completing the cycle.

Overall, the production of ethanol is sustainable process that recycles carbon dioxide and makes use of natural resources like plants and trees create a renewable energy source.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

The response successfully covers all parts of the task by outlining the main stages of the biofuel production cycle. An adequate overview is provided in the final paragraph, capturing the cyclic and sustainable nature of ethanol production. Key features such as harvesting, pre-processing into cellulose, chemical processing into sugars with microbes, and final consumption in vehicles are all reported. However, some parts of the response are slightly under-developed; for instance, the transition from sugars to microbes and ethanol lacks a bit of detailed elaboration on the exact sequence shown in the diagram. Overall, the information is accurately selected and presented to meet the requirements of this level.

Coherence and Cohesion: Band 6.5

The text presents a coherent overall arrangement with a clear logical progression from the initial growth of plants to their combustion in vehicles and the subsequent release of carbon dioxide. Paragraphing is used appropriately to separate the introduction, middle stages, and conclusion. However, cohesion is occasionally mechanical or faulty, such as abrupt transitions between paragraphs and punctuation lapses, like the comma splice and capitalisation error in 'processing stage, Here, it is'. Referencing is generally clear, but transitional phrases could be more varied and smoothly integrated to enhance the flow of information across sentences.

Lexical Resource: Band 6.0

The vocabulary used is adequate for the task, successfully conveying the sequence of the diagram using terms such as 'cyclic manner', 'utilizing', 'subsequently', and 'sustainable process'. The student attempts less common vocabulary like 'pre-processing' and 'emitted', though there are some inaccuracies in word choice and phrasing, such as 'plant in material' instead of 'plant material', 'using fuel transportation' instead of 'fueling transportation', and 'combination' instead of 'combustion'. These errors do not impede communication, but they reflect a restricted precision that prevents the response from achieving a higher band.

Grammatical Range and Accuracy: Band 5.5

The writing demonstrates a mix of simple and complex sentence forms, incorporating relative clauses and participial phrases such as 'utilizing energy from sunlight'. There are several grammatical errors present, including subject-verb agreement issues ('This cycle for biofuel production involve'), missing articles ('an aeroplane', 'a sustainable process'), and awkward prepositions or word forms ('trees create' instead of 'trees to create'). Punctuation and capitalization errors also occur, such as the lowercase 'ethanol' after a comma and period misuse. While these errors are noticeable and show that control is inconsistent, they rarely impede overall communication.

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