Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-20

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 below demonstrates the production of a biofuel that is known as ethanol.

Overall, the formation of a ethanol is a cyclical process and it comprises of several steps starting from the plant growth and ends with use of ethanol as a fuel. Another prominant feature is that the carbon dioxide that is released by vehicles spreads in the environment to maintain the ethanol production process.

The plants and trees absorb sunlight and carbon dioxide and are exposed to harvesting. After collection, the crops are subjected to pre-processing where they are extracted as cellulose however, by further refinement they are converted to complex structures known as sugars.

After that, these sugars molecules underwent the process of the microbes addition. These tiny creatures help it to convert the sugar particles into Ethanol. Finally, now ethanol is manufactured and ready for its every day use. This alchohol based fuel is fully pepared to be used for various automobiles. This is a repetitive process that goes on throughout day.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You identify the diagram as a cyclical process and give a relevant overview of plant growth, ethanol use and carbon dioxide returning to support production. The main conversion stages are also covered, from harvesting and pre-processing through cellulose and sugars to the addition of microbes. This gives the reader a sound account of the central process. However, some features are less fully reported: the diagram shows ethanol being used by cars, trucks and aeroplanes, but these transport modes are only generalised as “various automobiles.” The description of the cellulose-to-sugar stage is also unclear, and the final carbon-dioxide loop could be explained more precisely. Including these details would make the account more complete and better supported.

Coherence and Cohesion: Band 6.5

The response has a clear overall structure: an introduction, an overview, and two paragraphs describing the stages. The sequence from plant growth to harvesting and then to fuel production is generally easy to follow, and transitions such as “After collection,” “After that,” and “Finally” help signal progression. The overview also gives the process a useful cyclical frame. Some links are less clear or slightly mechanical, however. For example, “After that” and “Finally, now” do not precisely express the relationships between stages, and “where they are extracted as cellulose however” makes the transition difficult to follow. The final sentence about the process continuing “throughout day” is disconnected from the preceding explanation. More precise linking and clearer reference to each material would strengthen progression.

Lexical Resource: Band 6.0

You use a reasonable range of process vocabulary, including “pre-processing,” “cellulose,” “refinement,” “microbes,” and “manufactured,” which helps convey the stages. There are also attempts at more formal phrasing, such as “prominent feature” and “cyclical process.” However, several choices are inaccurate or unnatural for describing the diagram: “exposed to harvesting,” “sugars molecules,” and “tiny creatures” are not suitable or precise in this context. Spelling errors such as “prominant,” “alchohol,” and “pep ar(ed)” (written as “pep ar(ed)” in the response) also reduce accuracy; the intended forms are “prominent,” “alcohol,” and “prepared.” Aim for standard process collocations and use the diagram’s labels where possible, rather than adding informal descriptions.

Grammatical Range and Accuracy: Band 5.5

You attempt a mix of simple and complex sentences, including clauses with “where” and “however,” and most of the process remains understandable. Some grammatical errors are present, though, and they affect accuracy. For example, “a ethanol” needs the article “an,” while “it comprises of” should be “it comprises” or “it consists of.” In “these sugars molecules underwent,” the noun phrase should be “these sugar molecules,” and the past-tense “underwent” is inconsistent with the present-tense process description. The sentence beginning “After collection” also joins clauses awkwardly, with “however” lacking appropriate punctuation. Use the present simple consistently for process stages and check articles, agreement, and clause boundaries.

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