Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · Cambridge IELTS 19 · 2026-09-23

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 production of a biofuel known as ethanol.

Overall, the process involves several steps beginning from the harvesting of grown trees and plants. Moreover, the process involves the pre-processing and processing of cellulose to form sugar. Addition of microbes turn sugars into ethanol that could be used as fuel in vehicles.

Initially, the grown plants and trees store energy in the form of sunlight and carbon dioxide emmited by automobile. These plants and trees are then harvested using a tractor. After that pre-processing take place in which machines are used to extract cellulose.

Furthermore, through processing cellulose is converted into sugars using chemicals in lab. The addition of microbes in sugars convert it into ethanol. Ethanol is then used as biofuel in different vehicles such as cars, trucks and aeroplanes. Atlast automobiles emit carbon dioxide that is again absoebed by palnts and trees as form of energy.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

The student successfully addresses all parts of the task by outlining the main features of the ethanol production process depicted in the diagram. An appropriate overview is provided in the second paragraph, capturing the cyclical nature and key stages of the process from harvesting to fuel use and carbon dioxide absorption. The response accurately details the sequential steps, such as harvesting, pre-processing to extract cellulose, chemical processing into sugars, and fermentation via microbes. While some details are slightly generalized, the overall information is clearly reported, making comparisons and tracing the closed-loop cycle effectively. The response meets all requirements for Task Achievement at a solid level.

Coherence and Cohesion: Band 6.0

The text demonstrates a clear logical organization and progression throughout. The response is divided into logical paragraphs, with an introductory statement, an overview, and detailed sequential steps split across the final two paragraphs. Cohesive devices are used reasonably well to guide the reader through the stages, using sequencing words like 'Initially', 'After that', 'Furthermore', and 'Atlast'. However, some minor referencing or mechanical transitional choices are present, such as 'Atlast' (spelled as one word) and abrupt transitions between sentences. Despite these minor issues, the overall progression is clear and easy to follow, supporting a coherent reading of the process diagram.

Lexical Resource: Band 6.0

The student uses an adequate range of vocabulary suitable for describing a scientific process, including terms like 'harvesting', 'pre-processing', 'cellulose', 'sugars', 'microbes', and 'carbon dioxide'. There are some successful attempts to use less common vocabulary, though precision is occasionally lacking, such as 'emmited' instead of 'emitted', 'absoebed' instead of 'absorbed', and awkward phrasing like 'in form of energy' or 'in lab'. Spelling and word-choice errors are noticeable ('Atlast' for 'At last', 'emmited', 'absoebed', 'palnts'), but they do not impede overall communication. The vocabulary range is minimally sufficient to convey the process accurately.

Grammatical Range and Accuracy: Band 6.0

The response features a mix of simple and complex sentence forms, demonstrating attempts at varied structures (e.g., relative clauses and passive constructions like 'cellulose is converted into sugars'). There are several grammatical errors and punctuation slips throughout the text, including subject-verb agreement issues ('pre-processing take place', 'addition of microbes ... convert it'), missing articles ('in lab'), and spelling errors that affect word formation. Nevertheless, the meaning remains comprehensible, and the mix of structures shows an adequate control for a mid-level band score.

See this exact question answered at other band scores. The same prompt compared across bands.

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.