Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-11-10

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 5.5)

The figure below illustrate the process of making biofuel with the help of energy.Biofuel is known as ethanol.

Overall,in this diagram they show the whole process that starts with energy and end with the carbon dioxide.They make ethanol with diiferrent features like harvesting,processing and transporting etc.

Initially,we can see plants and trees in diagram these plants and trees are grown with the help of energy like sunlight and carbon dioxide.They harvest these plants and trees.After the harvesting they make this into cellulose with the helpof pre-processing in addition, they develop sugars from the procedure of processing in the leboratires

Secondly, they create microbes added and at last they make ethanol from microbes.After this process they transport ethanol in different vehicles such as,cars,trucks and airoplanes.Furthermore,these vehicles migrate the carbon dioxide into air.And at last this carbon dioxide mixed in the air.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the subject as ethanol production and include several central stages, including plant growth, harvesting, processing, microbes, and transport. However, the account is only partial: it does not clearly explain that pre-processing produces cellulose, that processing converts cellulose into sugars, or that microbes are added before ethanol is produced. The final carbon-dioxide stage is also misrepresented: the diagram shows emissions from the vehicles returning to the plants, not simply mixing into the air. Your overview says the process starts with energy and ends with carbon dioxide, but misses the key feature that it is a cycle. The response is also 10 words below the required minimum. Add the missing links and describe the cycle accurately.

Coherence and Cohesion: Band 5.5

The response has a basic overall structure, with an opening, an overview, and two paragraphs describing stages. Sequencing words such as “Initially,” “Secondly,” and “at last” help the reader follow the general order. However, progression is not consistently clear: the first stage paragraph combines pre-processing, cellulose, and sugar production in a confusing sentence, while “After this process” does not specify which process it refers to. The overview also says the process ends with carbon dioxide, although the diagram loops back to plant growth. Use one paragraph for the production stages and another for ethanol use and the return of carbon dioxide, with clear links between each stage.

Lexical Resource: Band 5.5

You use some relevant process vocabulary, including “harvesting,” “cellulose,” “processing,” “microbes,” and “transport,” so the topic is generally recognisable. However, the range is limited and several choices are imprecise or repetitive. “They make this into cellulose” does not clearly express the stage, and “migrate the carbon dioxide into air” is an unnatural way to describe vehicle emissions. There are also noticeable spelling errors, including “diiferrent,” “leboratires,” and “airoplanes,” which reduce accuracy. Aim for precise process verbs such as “is converted into,” “is fermented,” and “is released,” and check spelling before submitting. Avoid repeating “they make” when describing successive stages.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentences, and the reader can usually understand the broad sequence. However, grammatical errors are frequent enough to make some relationships unclear. For example, “The figure below illustrate” has subject–verb disagreement, while “plants and trees are grown with the help of energy” uses an awkward passive construction for a natural growth process. The sentence beginning “After the harvesting” runs several stages together without clear sentence boundaries, and “they develop sugars from the procedure of processing” has an unclear grammatical relationship between the stages. There are also missing spaces after full stops and commas. Use shorter, complete sentences with consistent present simple or passive forms, and punctuate each stage clearly.

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