Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-11-12

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 6.0)

The diagram presents production of ethanol in different stages involving how tree utilize carbon dioxide and sunlight for growth and emission of carbon dioxide by vehicles into air.

Overall, the process started from tree harvesting and ended at consumption of ethanol by vehicles.Then carbon dioxide is emitted by vehicles, which is consumed by plants and process of production restarted again. This is a cyclic process involving eight stages and labortary processing.

Initially, the process of ethanol production began by harvesting of grown plants and trees. It is followed by fedding harvested material into machinary for pre processing. After pre processing material is reconfigured into cellulose.Subsequently, cellulose is sent into labortary for further processing through scientific methods.

After that material is processed into sugar. Later in stages, microbes are added into sugar molecules. After microbes are fed into sugar it is transformed into ethanol. Then it is packed to deliver into market for commercial use. Finally, it is consumed by car, trucks and airplane which emit carbondioxide into air. Then carbon dioxide is taken by plants and trees for growth and process of ethanol production restart again.

AI examiner evaluation

Task Achievement / Task Response: Band 7.0

You give a clear account of the main cycle: plant growth, conversion of plant material into ethanol, its use in transport, and the return of carbon dioxide to plants. The overview identifies the cyclical nature of the process, and most of the stages are reported in a sensible order. However, some details are not supported by the diagram: it does not show ethanol being “packed” or delivered to a market, nor does it specify “laboratory” or scientific processing. The overview also says the process starts with harvesting, although the diagram begins with sunlight and carbon dioxide enabling plants to grow. For greater precision, include the initial growth stage and describe the three transport modes without adding unshown steps.

Coherence and Cohesion: Band 6.5

The response is organised into an overview followed by two paragraphs that trace the stages, and the sequence is generally easy to follow. Connectors such as “Initially,” “Subsequently,” and “Finally” help signal progression. This clear overall arrangement meets the lower-band expectations, while the orderly stage-by-stage account shows some of the flexibility associated with a stronger performance. However, the linking is somewhat mechanical and repetitive, particularly the repeated use of “After” and “Then.” The overview’s “This is a cyclic process” also repeats the preceding explanation rather than adding a distinct feature. Improve progression by grouping related stages and using more varied, precise links; add a paragraph break before the transport and carbon-dioxide return stages.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvesting,” “pre-processing,” “cellulose,” “microbes,” and “ethanol,” so the reader can identify most stages. However, the range is limited and several word choices or collocations are inaccurate or imprecise. “Tree utilize carbon dioxide” is awkward, “reconfigured into cellulose” does not accurately describe the conversion, and “fed into sugar molecules” is not a natural description of adding microbes. There are also noticeable spelling errors, including “fedding,” “machinary,” “labortary,” and “carbondioxide.” These issues make parts of the account less clear and keep vocabulary control below a more flexible level. Use accurate process verbs such as “converted,” “processed,” and “released,” and check spelling carefully.

Grammatical Range and Accuracy: Band 5.5

You attempt a mixture of simple and more complex sentences, including a relative clause in “which emit carbon dioxide” and sequencing clauses such as “After microbes are fed into sugar…”. However, errors in sentence construction and grammatical forms are frequent enough to affect clarity. For example, “how tree utilize” lacks correct number agreement, “After pre processing material is reconfigured” needs clearer punctuation and sentence structure, and “it is transformed” has an unclear reference. The overview also shifts between past and present forms (“started” and “is emitted”), while “process … restarted” lacks the appropriate verb form. Work on consistent tense, articles and plurals, and make sure each pronoun clearly refers to a specific stage or material. More accurate control of these patterns would make the sequence easier to follow.

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