Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-18

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 6.0)

The given sketch illustrates overall proceduce of making biofule or ethanol.

Overall, initially sunlight and carbondioxide execute by plants and trees, while the final product is ethanol which mainly uses in various vehicles. Some important steps in making of biofuels are plant harvesting, pre-processing, cellulose production, adding of microbs into sugar after processing of cellulose and the final products in ethanol.

Firstly, plants and trees collect energy from combination of corbon dioxide and sunlight, after that next step is harvesting through a tractor. Further cellulose were collected after pre-processing of harvesting plants, and then it processed in the laboratory until sugar components were produced from it.

Furthermore, microorganisms were added to sugar supplements, and it remains in room temperature upto ethanol production. After completion of biofuel production cycles it would uses by different vehicle, like buses and cars and also by airplanes. After consumption of these biofuels by various factories and different automobiles creates corbon dioxide and then it release to atmosphere which mainly uses by plants for their groth and the cycles start repeated again.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You identify the main stages and give an overview of the cycle, noting that plants use sunlight and carbon dioxide and that ethanol is used as fuel. The sequence from harvesting through pre-processing, cellulose, processing and sugars to ethanol is also broadly represented. This covers the task, although some details are less fully or accurately reported: the diagram shows microbes being added after sugars, but does not state that the mixture is kept at room temperature. It also shows fuel used by a car, truck and aeroplane, rather than buses, and carbon dioxide returning to the plants. To strengthen the response, describe these features precisely and avoid adding unsupported process conditions.

Coherence and Cohesion: Band 6.5

The response has a clear overall arrangement: an introduction and overview are followed by stages of production and then the fuel’s use and the carbon cycle. Sequencing expressions such as “Firstly,” “after that,” and “Furthermore” help the reader follow the process. However, some links are mechanical or unclear, particularly “after that next step,” and the final sentence combines fuel use, carbon dioxide release and plant growth in a way that makes the relationships difficult to track. Paragraphing is appropriate, but clearer sentence boundaries and more precise references to each stage would improve progression. The organisation is coherent overall, though cohesion is not yet consistently smooth.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvesting,” “pre-processing,” “cellulose,” “microorganisms” and “ethanol,” which helps convey the stages. There is some range in describing the cycle and its outputs. However, spelling and word-choice problems are noticeable: “proceduce,” “biofule,” “microbs” and “corbon” recur or obscure accuracy, while “execute by plants” and “sugar supplements” are not natural descriptions of the diagram. “Laboratory” is also an imprecise label for the processing facility shown. Aim for accurate spelling and standard collocations, such as “plants absorb energy” and “microbes are added to the sugars.” This would make the vocabulary more precise and easier to understand.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and complex sentences, including a sequence linked with “after that” and a final clause explaining the carbon cycle. The main stages can generally be understood, but grammatical control is uneven. Examples include “plants and trees collect energy,” followed by “it processed,” where the verb form and reference are unclear, and “it would uses,” which has an incorrect verb form. In “After completion … it would uses by different vehicle,” the passive construction and singular/plural agreement are also faulty. Several long sentences join multiple stages without clear grammatical boundaries. Use shorter, controlled sentences and check verb forms, agreement and passive structures when describing processes.

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