Band 5.5 IELTS Writing Task 1 Model Answer

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

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 given diagram shows how ethanol is produced through different processes.

Overall, this is cyclical process in which energy from sunlight and carbon dioxide eventually leads back to related point.

Firstly, plants and trees are growing with the help of sunlight and carbon dioxide from the environment. Harvesting is done with the help of harvester. Moreover, there is a pre processing of crops. It is converted into cellulose and than main process is done in the labotary.

Furthermore, cellulose is altered in the sugar with the help of different chemicals. After this some microbes is added in the sugar and ethanol is produced. Additionally ethanol is used in the vehicles and they eleminated the carbon dioxide in the atmosphere and cyclic process begin again with the help of sunlight. Biofuel production is a proccess in in which we recycle the CO2 and made ethanol again and again with the help of natural energy.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You identify the diagram as a cyclical process and cover its main stages, from plant growth and harvesting through cellulose, sugars, microbes and ethanol, to carbon dioxide returning to the plants. This gives the reader a generally accurate account of the process. However, some details are unclear or not fully supported: “main process is done in the labotary” is not specified in the diagram, and the diagram shows ethanol being used by a car, truck and aeroplane, rather than vehicles generally. The overview that energy and carbon dioxide lead back to a “related point” is also vague. To strengthen the response, state the cycle more precisely and describe the key stages and transport uses without adding unsupported details.

Coherence and Cohesion: Band 6.0

The response follows the process in a broadly logical order, and sequencing expressions such as “Firstly,” “After this” and “Additionally” help show how one stage leads to another. The opening overview also signals that the process is cyclical. However, the ideas are presented in one block, so the overview and the detailed stages are not clearly separated. Some links are mechanical, and the final sentence repeats the cycle idea rather than adding a distinct concluding feature. There are also unclear references, such as “related point,” which makes the cycle’s return stage difficult to follow. Use separate paragraphs for the overview and process details, and connect stages with precise references to the materials and outputs.

Lexical Resource: Band 5.0

You use relevant process vocabulary, including “harvesting,” “cellulose,” “microbes” and “ethanol,” which helps communicate the diagram’s subject. However, the range is limited and some choices are inaccurate or imprecise: “altered in the sugar” does not clearly describe conversion into sugars, while “eliminated the carbon dioxide” is not a natural way to describe emissions. Spelling errors such as “labotary,” “eleminated” and “proccess” also reduce accuracy. Aim for precise process verbs and natural collocations, and check spelling carefully. For example, describe cellulose as being “processed into sugars” and transport as “releasing carbon dioxide.”

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more extended sentences, including the sequence beginning “After this,” and the final sentence explaining the cycle. The main stages are usually understandable, but some grammatical errors make parts less clear. For example, “this is cyclical process” needs an article, “some microbes is added” has a subject–verb agreement error, and “plants and trees are growing” uses an awkward tense for a general process. The sentence “it is converted into cellulose and than main process is done” also has unclear reference and missing article use. Practise accurate passive forms for process descriptions, such as “the crops are pre-processed” and “microbes are added,” alongside correct articles and agreement.

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