Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-12

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 illustrated that the how a biofuel called ethanol is produced.

Overview, there the many steps to produced the biofuel with the help of sunlight and carbon dioxide. There are total nine step to produced biofuel.

Firstly, the trees and plants were consume sunlight and carbon dioxide and according to second step their individuals are harvesting these plants through different type of machinery and third step is start to making a cellulose and after harvesting thses plants put into a machinery for pre-processing and make a cellulose.

After making a cellulose, and the cellulose put inside a machinery for processing and make a sugar and then there are some microbes added in sugars and made a Ethanol and it is usually use in different types of vehicles like cars, trucks and airplanes and these vehicles released carbon dioxide after burning a fuel and mix in air and then plants and trees were again inhale carbon dioxide.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the subject and describe the main sequence from plant growth through processing to ethanol use, including the return of carbon dioxide to plants. This covers the central cycle, and the transport examples—cars, trucks and aeroplanes—are relevant. However, the overview is unclear (“there the many steps”) and the claim that there are “nine step[s]” is not a useful summary of the cycle’s main features. Some stages are confused: harvesting is described as people using machinery, while pre-processing and cellulose formation are muddled together. To strengthen the response, give a clear overview of the circular nature of the process, then report each stage in the correct order and distinguish the production stages from fuel use and carbon-dioxide recycling.

Coherence and Cohesion: Band 5.5

The response has a basic sequence, signalled by “Overview,” “Firstly,” and “After making a cellulose,” and a reader can broadly follow the process from plants to transport and back to plant growth. However, the organisation is not consistently clear: the first body paragraph mixes harvesting, pre-processing and cellulose, and the next sentence repeats some of this information. Most of the account is packed into two long paragraphs, with the final paragraph functioning as one extended sentence. Use separate paragraphs for the overview and the stages, and divide the process into shorter sentences. Clear links such as “Next,” “The cellulose is then processed,” and “Finally” would make the progression easier to follow without relying on repetitive sequencing.

Lexical Resource: Band 5.0

You use some task-relevant vocabulary, including “pre-processing,” “cellulose,” “microbes,” “ethanol” and “carbon dioxide,” which helps convey the process. However, the range is limited and several word choices or collocations are inaccurate or repetitive. For example, “consume sunlight” and “inhale carbon dioxide” describe plants in an overly human way, while “made a sugar” and “burning a fuel” are imprecise. “Machinery” is repeated and does not clearly identify the stages shown. Aim for precise process language such as “absorb,” “is converted into,” and “is used as fuel.” Check spelling and word forms, including “these” and “vehicles,” so that errors do not distract from the information.

Grammatical Range and Accuracy: Band 4.5

The response attempts to connect stages using longer sentences, but control is limited and errors occur throughout, sometimes making relationships between steps difficult to understand. Examples include “there the many steps to produced,” “There are total nine step,” and “the cellulose put inside a machinery,” where verb forms, agreement, articles and sentence construction are faulty. The final sentence also joins many stages with “and,” creating a run-on structure. Most clauses follow a simple pattern, and there is little accurate variety in sentence forms. Practise clear passive constructions for processes—for example, “The plants are harvested” and “The cellulose is processed into sugars”—and use shorter sentences with consistent tense and punctuation.

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