Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-08

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 diagram illustrates the information about the production of biofuel named as ethanol.

Overall, it is clear from the diagram that the ethanol formation is a cyclic process which contain main three phases: biological phase, industrial process of fuel formation and the energy consumption.

It is observed from the cycle that plants and trees took energy from the sunlight and carbon dioxide for their growth afterwards it can be harvested by the farmers which further went to the industrial process where initial phase is pre-processing of crops from which grains like structure can be formed that contains cellulose.

Furthermore, it is observed that cellulose can be processed under processing to make sugars. After a while microbes can be added to sugar to convert it into ethanol and it can be used by automobiles for their energy production. Subsequently, these vehicles can released carbon dioxide in air which can can be again utilized by the plants for their growth and the cycle continuous.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You identify the diagram as a cycle and cover its main stages, from plant growth and harvesting through cellulose, sugars and ethanol to carbon dioxide returning to plants. This gives the response a relevant overview and a generally accurate account of the sequence. Some details, however, are unclear or not supported by the diagram: “grains like structure” is not shown, and the diagram indicates that ethanol is used by a car, truck and aeroplane, rather than referring generally to “automobiles.” The overview’s three phases, especially “energy consumption,” are also not clearly defined by the visual. To strengthen the response, describe the stages more precisely and make the carbon cycle and the three transport uses explicit.

Coherence and Cohesion: Band 6.5

The response has a clear overall arrangement: an introduction, an overview, and two paragraphs describing the process in sequence. Linking expressions such as “Overall,” “Furthermore” and “Subsequently” help guide the reader through the stages, and the return of carbon dioxide provides a logical ending. Some connections are less smooth or precise, however. “Afterwards it can be harvested” has an unclear reference, while “which further went to the industrial process” makes the transition from harvesting to processing awkward. The repeated “it is observed” framing also makes the account somewhat mechanical. Use direct stage-to-stage links, and ensure pronouns clearly refer to the material or product being described.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “pre-processing,” “cellulose,” “microbes” and “carbon dioxide,” so the main subject remains understandable. There is also some attempt at more formal description, such as “cyclic process.” However, several word choices and collocations are unnatural or imprecise: “production of biofuel named as ethanol,” “grains like structure,” and “used by automobiles for their energy production.” “Energy consumption” is also not an accurate label for the stages shown. These choices sometimes make the process harder to picture, despite the relevant technical terms. Aim for concise, conventional process language—for example, “ethanol production,” “cellulose-containing material,” and “used as fuel in transport”—and avoid adding descriptions not present in the diagram.

Grammatical Range and Accuracy: Band 5.0

You attempt a mixture of simple and complex sentences, including clauses linked with “which” and “that,” and the overall meaning is usually recoverable. However, errors in verb forms, agreement and sentence construction are frequent enough to limit clarity. For example, “the ethanol formation is a cyclic process which contain” needs agreement, and “plants and trees took energy” uses an unsuitable tense for a general process. In “these vehicles can released,” the modal is followed by the wrong verb form; “can can again utilized” also contains a repeated modal and an incomplete passive construction. Review present simple for process descriptions, subject–verb agreement, and modal verb patterns. Breaking some long sentences into shorter, controlled clauses would also improve accuracy.

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

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.