Band 6.0 IELTS Writing Task 1 Model Answer

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

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 circular diagram illustrates step-wise process on the formation of a biofuel known as ethanol.

Overall,the entire process takes 7 different stages for a complete manufacturing of the ethanol which takes place from farm to laboratory that begins with harvesting and ends with ethanol being used into various transportations.

On the one hand, The trees who have absorbed sunlight and carbon dioxide -are harvested and trees are inserted into pre-processing machine to convert into small stone like shape. It is then cnverted into cellulose and taken to the library for the further procedure.

The mixture is then proccesed into the laboratory to convert it into plenty of sugars which provides a texture of ethanol before adding microbes.Furthermore, microbes are added which concludes with a formation of ethanol. The bio fuel is now used in various transportations such as cars, trucks and aeroplanes.However, the carbon dioxide produced from vehicles are again absorbed by the trees.Therefore,this process continues in a circular motion.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the diagram as a circular ethanol-production process and give a relevant overview, noting that transport use releases carbon dioxide which is absorbed by trees again. You also cover several central stages, including harvesting, pre-processing, cellulose, sugar production, microbes and ethanol. However, the overview says there are seven stages, which does not accurately represent the sequence, and the account omits the key role of sunlight and carbon dioxide in plant growth. Some details are unclear or unsupported: the diagram shows processing in a factory, not a “library,” and it does not show the material becoming “small stone like” pieces or sugars giving ethanol its texture. Describe the stages more precisely and distinguish what the diagram shows from assumptions.

Coherence and Cohesion: Band 6.0

The response has a recognisable overall structure: an introduction, an overview, a description of production, and a concluding reference to the cycle. The sequence from harvesting through processing to transport is generally understandable. However, the progression is weakened by the inaccurate “On the one hand” opening, which suggests a contrast that never follows, and by abrupt transitions such as “It is then” and “Furthermore.” Several ideas are crowded into long sentences, while missing spaces after full stops make the links harder to follow. Organise the stages in clear chronological paragraphs and use straightforward sequencing expressions such as “Next,” “After this,” and “Finally.” Ensure each reference, such as “it,” clearly identifies the material or product.

Lexical Resource: Band 5.5

You use some relevant process vocabulary, including “pre-processing,” “cellulose,” “microbes,” “absorbed,” and “circular motion,” which helps communicate the topic. There is also an attempt to vary wording with phrases such as “formation” and “concludes with.” However, several choices are inaccurate or unnatural for this diagram: “library” appears to mean a factory or processing facility, “texture of ethanol” does not describe the conversion to ethanol, and “various transportations” is not a natural way to refer to vehicles. Spelling errors such as “cnverted” and “proccesed” also reduce precision. Aim for accurate process terms and natural collocations rather than adding descriptive phrases that the diagram does not support.

Grammatical Range and Accuracy: Band 5.5

You attempt both simple and more complex sentence forms, including a relative clause in “which concludes with a formation of ethanol” and a passive construction in “microbes are added.” The main sequence remains understandable, but some grammatical errors and punctuation problems affect clarity. For example, “The trees who have absorbed” uses an unsuitable relative pronoun for trees, and “the carbon dioxide produced from vehicles are” has a singular subject with a plural verb. The opening overview also has an awkward construction in “takes 7 different stages for a complete manufacturing.” Capitalisation after commas and full stops is inconsistent, and spaces are missing after several sentence-ending periods. Use shorter, controlled sentences and check agreement, articles, and punctuation.

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