Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-06

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 gives information the process of making ethanol which is later used in transport. The process consist of total 8 stages.

In the first stage, as we can see plants and trees take energey from sunlight and carbon dioxide which are help them to grow. In the second stage, these plants and trees are harvested by a farmer. After being harvested, farmer take them for pre-processing purpose. In the next stage, these are turned into liquid and converted into cellulose from pre-processing stage.

Then, cellulose sends into laboratory for processing purpose where cellulose passes through with multiple stages. In the next stage, they are transformed into sugars form. After being converted into sugars, Microbes are added into sugars which are later turned out into Ethanol form. Finally Ethanol is used by various transport system such as car, heavy trucks and airoplane. These vechiles produced carbon dioxide which help Plants and trees and this process continue again and again.

To sum up, it would be quite interesting to note that the procedure to make biofuel production depends on various stages form growing plants and trees to make Ethanol.

AI examiner evaluation

Task Achievement / Task Response — Band 6.0

The response covers the main stages of the ethanol production process, from the growth of plants to the final use in vehicles. However, the description is somewhat mechanical and lacks a clear overview of the cyclical nature of the process. While the main features are identified, the explanation of the technical stages (such as the conversion of cellulose into sugars) is slightly vague. To improve, ensure that the relationship between the stages is described more precisely, and include a more distinct summary paragraph that synthesises the key information rather than just restating the process steps.

Coherence and Cohesion — Band 6.0

The essay is organised into logical paragraphs, which helps the reader follow the process. Cohesive devices such as 'In the first stage', 'Then', and 'Finally' are used to sequence the information. However, the use of these devices is somewhat repetitive and mechanical. Additionally, some referencing is unclear, such as 'these are turned into liquid', where the antecedent is not explicitly defined. Improving the variety of linking words and ensuring that pronouns clearly refer back to their nouns would enhance the flow and coherence of the response.

Lexical Resource — Band 5.5

The vocabulary is generally adequate for the task, allowing the reader to understand the process. However, there are several instances of imprecise word choice and awkward phrasing, such as 'pre-processing purpose' and 'sugars form'. The range of vocabulary is somewhat limited, relying on basic terms. To reach a higher band, you should incorporate more precise technical or descriptive vocabulary related to industrial processes, such as 'fermentation', 'conversion', or 'by-product', and avoid repetitive phrasing like 'purpose' or 'stage'.

Grammatical Range and Accuracy — Band 5.5

The response contains a mix of simple and complex sentence structures, but there are frequent grammatical errors. Issues include subject-verb agreement ('process consist', 'which are help them'), article usage ('into laboratory'), and spelling mistakes ('energey', 'airoplane', 'vechiles'). While these errors do not completely impede communication, they are noticeable and occur throughout the text. To improve, focus on proofreading for basic subject-verb agreement and article placement, and try to vary your sentence structures with more accurate complex forms.

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

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