Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-30

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 diagram illustrates the process of making biofuel called ethanol.

Overall, In the process of making biofuel called ethanol several steps are includes like Plants and tree grow, Harvesting, Pre-processing, Cellulose, Processing, Sugar, and Ethanol. then the ethanol are ready to use for vehicle like Cars, Trucks, and Aircrafts.

Firstly the growing of plants and trees it requires energy (sunlight and carbon dioxide) for growth, secondly after gorwing success fully it harvested by machines or by man then it sent to chopper machine for pre-processing after this it processed for cellulose.

cellulose are processing in factory for making sugers particles and then form this sugars they added microbes for geting etanol then finally ethanol are ready to use for cars, trucks, and aircrafts. then this vehicle realising carbon dioxide this is again cansume as energy by tree.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

The response attempts to summarise the diagram showing how ethanol is biofuel produced, outlining the main stages from plant growth to vehicle use and the carbon dioxide cycle. However, the response fails to meet the minimum word count requirement of 150 words, containing only 137 words. Furthermore, while the general sequence is described, key details regarding the cyclic nature and the specific inputs and outputs at each stage are under-developed. Because the length requirement is not met and certain steps are listed mechanically rather than integrated into a cohesive summary, this component falls under Band 5.

Coherence and Cohesion: Band 5.0

The response has some organization and attempts to use sequencing markers such as "Firstly", "secondly", and "then". However, the overall progression is disjointed due to the lack of proper paragraphing and run-on sentence structures. Cohesive devices are repetitive and sometimes inaccurate, as seen in phrases like "then the ethanol are ready to use" and "after this it processed". Paragraph breaks are not effectively utilized to separate the introduction, the main manufacturing steps, and the final cycle, making the text feel like a single continuous block of basic ideas.

Lexical Resource: Band 5.0

The lexical range is limited and repetitive. The student relies heavily on basic vocabulary and direct lifting from the prompt, such as "biofuel called ethanol", "plants and trees", and "carbon dioxide". There are noticeable word-form and spelling errors throughout the text, including "gorwing", "success fully", "sugers", "etanol", "cansume", and "realising". While the terminology is minimally adequate to convey the general topic, these frequent lexical inaccuracies and spelling mistakes prevent the response from achieving a higher band score.

Grammatical Range and Accuracy: Band 4.5

The response demonstrates a very limited range of grammatical structures, relying primarily on simple sentences and faulty attempts at complex clauses. There are frequent grammatical errors, such as subject-verb agreement issues ("ethanol are ready", "cellulose are processing", "trees it requires"), missing articles, and incorrect prepositions ("for geting etanol", "from this sugars"). Punctuation is also poorly managed, resulting in run-on sentences like "then this vehicle realising carbon dioxide this is again cansume as energy by tree." These persistent errors cause frequent strain for the reader.

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

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