Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-10-07

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 show how a biofuel called ethanol is produced.

Overall, the whole process consists of seven steps. The process start from the growth of plant and then after the processing of the cellulose the ethanol is obtained from microbes which are being added in the sugar.

In detail, the first step of the production is the growth of plants and tress. They receive energy from the sunlight and from the carbon dioxide. The next stage is the harvesting and then pre-processing from the plants. The cellulose is obtained from pre-processing. The fifth step is to process cellulose and make sugars. The ethanol is obtained from sugars by adding beneficial microbes. Now, the ethanol is ready for using as fuel in different machines of transport such as, cars, buses and planes. Then these means of transport emit carbon dioxide which is then later used by plants and trees for growth. This is how the process remain continue for use.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You cover the main stages and identify the cyclical feature: plants grow using sunlight and carbon dioxide, the material is processed into sugars, microbes are added, and transport emissions return to the plants. The overview also gives the reader a useful sense of the sequence. However, saying there are “seven steps” is inaccurate, since the diagram shows more stages, and “beneficial microbes” adds a quality not stated in the visual. The transport examples are also not fully accurate: the diagram shows a car, truck and aeroplane, rather than buses. Your account is relevant, but some details and the overview are less precise than they could be. Name the stages more accurately and avoid unsupported additions.

Coherence and Cohesion: Band 6.5

The response is arranged in a clear order, with an opening, an overview and a paragraph that follows the production cycle from plant growth to carbon dioxide returning to the plants. Sequencing expressions such as “The next stage,” “The fifth step” and “Then” help the reader follow the process. Some linking is mechanical, however, and the overview’s claim of seven steps does not align with the fuller sequence that follows. The final sentence, “This is how the process remain continue for use,” is also an unclear ending. Use a more consistent set of stage links and make the overview accurately summarise the cycle; this would make the progression smoother and the paragraphing more effective.

Lexical Resource: Band 6.0

You use relevant process vocabulary, including “harvesting,” “pre-processing,” “cellulose,” “sugars” and “carbon dioxide,” which allows you to describe the diagram’s main stages. There is also some variety in how you refer to the process and its outputs. However, several choices are imprecise or unnatural: “tress” appears to be a spelling error for “trees,” “different machines of transport” is awkward, and “the process remain continue for use” does not express the intended idea clearly. “Beneficial microbes” is an unsupported description. Aim for accurate process collocations and concise wording, such as “modes of transport” and “the cycle continues.”

Grammatical Range and Accuracy: Band 5.5

You attempt both simple sentences and longer structures, including “They receive energy from the sunlight and from the carbon dioxide” and the sequence describing how transport emissions return to plants. The main meaning is generally understandable, but some errors in agreement, verb forms and sentence construction remain. For example, “The diagram show” should be “The diagram shows,” “The process start” should be “starts,” and “the process remain continue” needs a different grammatical structure, such as “the process continues.” The phrase “ready for using as fuel” also needs a more natural pattern: “ready to be used as fuel.” Check subject–verb agreement and verb patterns, then proofread each sentence for a complete, natural construction.

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