Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-08-21

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)

The following diagram illustrate how a biofuel called ethanol is produced and how we use this ethanol in our daily life.

In, Initial Plant observe the sunlight+carbon dioxide and energy from sun from this the plants and tree grow in the next process they harvest the plant and make it into small pieces So, when the harvesting is complete So, they Pre-process the pieces onto cellulose and those cellulose they process in the lab with some chemicals and in a Result they made Sugars.

Morever, they will add some microbes in Sugars So, it will converted into Ethanol. ethanol is made with the help of microbes and those ethanol is use in our daily life. Such as in Cars, Trucks, and in airplanes those ethanol we add in gasoline fuel for cleaning the engine and from that engine the carbon dioxide is out and go to upward and again this process is reprocess.

In conclusion of this diagram that how ethanol is made and how it use in our daily life.

AI examiner evaluation

Task Achievement / Task Response — Band 5.0

The response addresses the task by describing the stages of ethanol production. However, the overview is weak and lacks a clear summary of the main trends or the cyclical nature of the process. While the stages are identified, the description is somewhat simplistic and relies heavily on a narrative style rather than an analytical summary. Some parts of the process, such as the specific chemical conversion, are described in a way that lacks technical precision. To improve, ensure you provide a clear overview in the introduction and focus on the logical flow of the process rather than listing steps in a conversational tone.

Coherence and Cohesion — Band 5.0

The essay is organised into paragraphs, but the logical progression is hindered by repetitive and awkward phrasing. The use of cohesive devices is often mechanical or incorrect, such as the frequent and unnatural use of 'So' to start or connect clauses. Referencing is sometimes unclear, for example, 'those cellulose' and 'those ethanol', which makes the text difficult to follow. Paragraphing is present, but the internal structure of the paragraphs lacks the necessary flow to guide the reader effectively through the process. Improving the variety and accuracy of linking words is essential.

Lexical Resource — Band 5.0

The vocabulary is limited and often repetitive. There is a reliance on basic terms like 'make', 'process', and 'use', which do not demonstrate the range required for a higher band score. There are also errors in word choice and collocation, such as 'go to upward' and 'reprocess' (when referring to the cycle). The student attempts to use some technical terms like 'cellulose' and 'microbes', but the overall control of vocabulary is insufficient to convey the information with precision. Expanding your range of verbs and nouns related to industrial processes would be highly beneficial.

Grammatical Range and Accuracy — Band 5.0

The response contains frequent grammatical errors that occasionally impede communication. There are consistent issues with subject-verb agreement (e.g., 'diagram illustrate', 'ethanol is use'), incorrect article usage, and sentence fragments. The sentence structures are predominantly simple or poorly constructed complex sentences. Punctuation is also inconsistent, with unnecessary capitalisation and comma splices. To reach a higher band, you must focus on basic sentence construction, ensuring that subjects and verbs agree and that clauses are connected correctly without relying on informal structures.

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

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