Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-14

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 process of biofuel production which is called ethanol.

Overall, the process involved 10 stages commencing from energy taking from sunlight and carbon dioxide and finish with creates ethanol.

To begin with, energy in life such as sunlight and carbon dioxide helps plants to grow more everyday. When they have enough conditions to crop, farmers will harvest them with their tools. After then, they will be transported to a place that helps to prepare for main processing. In this stage, plants and trees will be divided into small tiny pieces.

Continuing this process, cellulose in these materials will be taken to a laboratory so that they begin main processing and produce sugars. In addition, they will add microbes which are very tiny into sugars. After a period of time, this stage will create ethanol.

Ethanol is also a enery which is used in some kinds of vehicle such as cars, trucks and planes. When these transports operate, they will release emission which is carbon dioxide. Finally, carbon dioxide continues providing energy for plants and trees.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You cover the main stages from plant growth and harvesting through processing, sugar production, the addition of microbes, and the use of ethanol in transport. The overview also recognises the cycle linking carbon dioxide back to plant growth, which is an important feature of the diagram. Some details, however, are less fully or precisely reported: the diagram shows pre-processing producing cellulose and processing converting it into sugars, while your account leaves these relationships somewhat unclear. It also shows carbon dioxide released by the vehicles, rather than simply saying they release “emission which is carbon dioxide.” To strengthen the response, describe the stages and the circular relationship more explicitly, without adding unsupported details such as transport to a particular place or processing in a laboratory.

Coherence and Cohesion: Band 6.5

The response is arranged in a generally logical sequence, with an opening, an overview, and paragraphs that follow the production cycle from plant growth to transport and carbon dioxide release. Linking expressions such as “To begin with,” “Continuing this process,” and “Finally” help the reader follow the stages. However, some connections are mechanical or unclear: “After then” is awkward, and “In this stage” does not clearly identify whether it refers to pre-processing or the main processing stage. The paragraph break before the transport stage is also not fully effective, as the preceding paragraph already describes ethanol production. Use more precise references to each stage and group related steps together to make progression smoother.

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvest,” “cellulose,” “microbes,” “ethanol,” and “carbon dioxide,” so the topic is generally clear. There is also some attempt to vary wording, for example “commencing” and “release.” However, several inaccurate or unnatural choices limit precision: “energy in life,” “enough conditions to crop,” “small tiny pieces,” and “a laboratory” do not accurately or naturally describe the diagram. “Enery” is misspelled, and “emission” is used awkwardly where “carbon dioxide emissions” would be more suitable. Aim for accurate process collocations and avoid redundant combinations such as “small tiny.”

Grammatical Range and Accuracy: Band 5.5

You attempt a mixture of simple and more complex sentences, including a purpose clause in “so that they begin main processing” and a time clause beginning “When these transports operate.” The sequence is usually understandable, but some grammatical errors affect clarity. For example, “the process involved 10 stages commencing from energy taking … and finish with creates ethanol” has inconsistent verb forms and an incomplete construction. “When they have enough conditions to crop” also has an unclear clause structure, while “Ethanol is also a enery” contains an article error. Review verb forms in longer sentences, articles, and clause construction; clearer, shorter sentences would help you express the stages accurately.

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