Band 5.0 IELTS Writing Task 1 Model Answer

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

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 given diagram reflects how a boifuel called Ethanol is produced with step by step.

Overall, this process is reflects how to biofuel production made a Ethanol. Firstly energy are very important such as Sunlight and Carbon dioxide help to grow plants and trees. followed by farmer help of engery grow crop and harvesting. This process continously end and start with energy.

Firstly, In this diagram start with Energy sources like Sunlight and carbon dioxide they produces plants and tress. Secondly, farmer help with energy sources grow up crops and vagetables and harvesting. Moreover, after this process third step is pre- processing to use seprate crops and made cellulose. although, This types cellulose processing in Mills.

After, This processing they covent into sugars. However, sugars added in microbes and make Ethanol oil that is use in vehlicals such as cars, truck and airoplane. At least vehicals produces carbon dioxide covertert in engery sources.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the diagram as a production cycle and include several key stages: plant growth, harvesting, pre-processing, cellulose, processing, sugars, microbes and ethanol. You also mention the transport uses and the return of carbon dioxide, so the response is relevant to the task. However, some details are inaccurate or unclear: the diagram shows sunlight and carbon dioxide supporting plant growth, not farmers using energy to grow crops and vegetables, and it does not specify that cellulose is processed in mills. The overview says the process starts and ends with energy, whereas the cycle returns carbon dioxide to the plants. Explain the main stages and the recycling link more precisely, without adding unsupported details.

Coherence and Cohesion: Band 5.5

The response has an overall sequence, moving from plant growth through processing to ethanol and its use in vehicles. Paragraphing also separates the overview from the stage-by-stage account. However, progression is weakened by repeated introductions such as “Firstly” and “Secondly,” and some links do not express the relationship accurately. For example, “Moreover” introduces harvesting, while “However” connects sugars to microbes even though this is a continuation of the process. The overview repeats the opening idea rather than clearly summarising the cycle. Use a more direct sequence of stages, with linking words that show order or cause, and make references such as “this process” unambiguous.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “harvesting,” “pre-processing,” “cellulose,” “sugars,” and “carbon dioxide,” which helps communicate the subject. However, the range is limited and several word-choice, spelling, and word-form errors make parts difficult to understand, such as “boifuel,” “vagetables,” “seprate,” and “vehlicals.” Phrases such as “Ethanol oil” and “covertert in engery sources” are not accurate descriptions of the diagram. Aim for precise process language and check spelling carefully. Replacing informal or unclear wording with terms such as “is converted into” and “is used as fuel” would make the account more natural and exact.

Grammatical Range and Accuracy: Band 4.5

You attempt both simple and longer sentences, and the response generally follows the process from one stage to the next. However, control of sentence structure and basic grammar is inconsistent, and errors sometimes obscure the intended meaning. Examples include “energy are very important,” “they produces plants,” and “This process continously end and start,” which show problems with agreement and verb forms. Several sentences also lack a clear grammatical structure, particularly “Moreover, after this process third step is pre-processing to use…” and the final sentence. Use complete sentences with a clear subject and verb, maintain consistent present-tense forms, and check articles and punctuation. Shorter, accurate sentences would improve clarity before you attempt more complex structures.

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