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 diagram illustrates the process of prduction of a biofuel names as ethanol.

Overall, Ethanol production consists of almost 7 steps, taking residuel material from plants and trees. After getting Cellulose from the harvested material, it is procesessed in factories to make sugar that is converted to Ethanol with the help of microbes.

First, plants and trees are grown to take engergy that includes sunlight and Carbon Dioxide. Then, after harvesting, these crops are sent for Pre- processing and then they are converted into Cellulose, and sent to the factory for processing.

In factories, Cellulose converted into Sugars and after that, microbes are added to make Ethanol. In the last steps, the product undergoes the shipping process where it was shipped to different places through cars, trucks and planes. These vehicles and planes emmit Carbon Dioxide in the environment. This Carbon Dioxide is again utilised by the plants and trees to get energy.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

The response identifies the main stages, from plant growth and harvesting through cellulose processing and microbial conversion, and it gives a clear overview of the production sequence. It also captures the cycle’s key feature: carbon dioxide released by transport is returned to the plants. These details address the task well. However, some points are less fully or precisely reported: “almost 7 steps” does not accurately represent the diagram’s sequence, and the account omits that ethanol is used by three transport modes, rather than simply being shipped to different places. To strengthen the summary, describe the stages and the circular carbon-dioxide link precisely, without adding an unsupported shipping interpretation.

Coherence and Cohesion: Band 6.5

The response is organised into an introduction, an overview and two paragraphs describing the process, with a generally logical progression from plant growth to fuel use and carbon-dioxide return. Sequencing expressions such as “First,” “Then,” and “In the last steps” help guide the reader. The overview also prepares the reader for the main stages. Some links are mechanical or imprecise, however: repeated “then” and “after that” make the process sound list-like, while “where it was shipped” shifts awkwardly from the production sequence to distribution. Use clearer stage-to-stage links and refer consistently to the diagram’s transport uses, so the final cycle connects smoothly to the opening.

Lexical Resource: Band 5.5

The response uses relevant process vocabulary, including “harvesting,” “cellulose,” “processing,” “microbes,” and “Carbon Dioxide,” and the meaning is generally understandable. There is some range in expressions such as “converted into” and “undergoes.” However, spelling errors are noticeable, including “prduction,” “residuel,” “procesessed,” “engergy,” and “emmit,” and some choices are imprecise: “shipping process” does not accurately describe ethanol being used by vehicles and aircraft, while “make sugar” is less suitable than a process-specific term. Improve accuracy by checking spelling and choosing precise collocations for production stages and fuel use. This would make the vocabulary more controlled and appropriate to an academic process description.

Grammatical Range and Accuracy: Band 5.5

The response includes both simple and more developed sentence forms, for example, “After getting Cellulose from the harvested material, it is processed in factories to make sugar…” and the final sentence linking carbon dioxide back to plant growth. The sequence is usually easy to follow, but some grammatical errors remain. In “Cellulose converted into Sugars,” the passive verb “is” is missing; “plants and trees are grown to take energy” has an unclear grammatical relationship between growing and absorbing energy; and “where it was shipped” shifts tense and reference awkwardly. Capitalisation of common nouns such as “Ethanol” and “Sugars” is also inconsistent. Check passive constructions, tense consistency and sentence links to improve accuracy while retaining varied structures.

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