Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-10-19

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 5.5)

The diagram demostrate complete recycled process of production of ethonal(biofuel).

Overall, diagram illustrate the complete reclycled process of ethanol. It is not stop process. The major indegrent and by-product is carbon dioxide. The formation of ethnol has nine major step, start from Sunligh and carbon dioxide and by product after using ethanol is also carbon dioxide.

The production of biofuel(ethanol), it starts from combination of sunlight and carbon dioxide which is present in atmosphere although it help to grow plants and trees. Additional the plants and tree such assuger can are harvested by human beign and cut in to small peaces by pre-processing and cause formation of cellulose.Although the cellulose is brought into factories for processing and cause production of sugar.Futhermore we add microbes in sugar and final product ethanol is produced. Although after that recycleing start, when ethanol is uses as fuel in cars, truck, airplanes and vehicle the carbon dioxide is produced in atmosphere additinally this process carry on.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the diagram as a cyclical process and report its main stages, from sunlight and carbon dioxide supporting plant growth through harvesting, pre-processing, cellulose, processing, sugars, microbes and ethanol. You also correctly connect ethanol use in transport with carbon dioxide returning to the plants, so the central cycle is captured. Some details, however, are unclear or not supported by the diagram: for example, “plants and tree such as sugar cane” introduces a specific crop that is not shown, and the account does not clearly explain that ethanol is used by cars, trucks and aeroplanes. The overview also says there are nine major steps without making the stages easy to distinguish. A more precise overview and clearer reporting of the transport and carbon-dioxide links would strengthen the response.

Coherence and Cohesion: Band 5.5

The response has an opening, an overview paragraph and a longer description, and it generally follows the process from plant growth to fuel use. This gives the reader a basic sense of progression. However, the sequence is weakened by repeated or awkward linking words, especially “Although” at the start of sentences where no contrast is intended, and “Additional” and “Furthermore” do not always connect ideas smoothly. Several stages are crowded into one long sentence, making the links between harvesting, pre-processing and cellulose difficult to follow. The overview also repeats the idea that the process is complete and recycled. Use one clear overview, then describe the production stages and the return cycle in separate, logically ordered sections, with simpler, accurate transitions.

Lexical Resource: Band 5.0

You use relevant process vocabulary, including “harvested,” “pre-processing,” “cellulose,” “microbes” and “by-product,” which helps communicate the subject. However, the range is limited and several spelling and word-choice errors make parts of the description harder to understand, such as “demostrate,” “ethonal,” “reclycled” and “indegent.” Some combinations are also unnatural: “complete recycled process” and “formation of sugar” would be more clearly expressed as a production cycle and the production of sugars. The phrase “plants and tree such as sugar cane” is both imprecise and unsupported by the visual. Aim for accurate spelling and standard process collocations, and avoid adding examples that the diagram does not provide.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentence forms, including clauses beginning with “which” and “when,” and the overall meaning can usually be followed. However, control is inconsistent, particularly in longer sentences. For example, “although it help to grow plants and trees” has an agreement error and an unclear clause connection, while “when ethanol is uses as fuel” has an incorrect verb form. Articles and plurals are also often missing or inconsistent, as in “in factories” and “cars, truck, airplanes and vehicle.” Several sentences run together without clear punctuation, especially the description of harvesting and pre-processing. Build accuracy by using shorter sentences for each stage, checking subject–verb agreement and verb forms, and punctuating clauses clearly.

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