Band 5.0 IELTS Writing Task 1 Model Answer
Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-09-20
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 5.0)
The following illustration shows a procedure of forming Biofuel which also called Ethanol.
Overall, the process start with the energy of sunlight and plant harvesting to make Ethanol and then the formation of biofuel which leads to the toxicity of Carbon dioxide emissions in the environment.
Initially, the trees and plants are grown by the presence of sunlight and a gas called carbon dioxide which is the form of energy and then these cropes and trees harvested by the human and by machines tools like tractors and then it procecced by the cutting machine.The cutted pieces of plants made Cellulose and then it shifted to the labortary for the scientific proecessing unit and sugar formed with some quantity of added Microbes.
Subsequently,Ethanol as a Biofuel of transportation system discharge the huge amount of the carbon dioxide emissions which cause of environmental polloution in comparison to the greenery which is safe for the planet . This cycle remains in a loop
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 5.0 |
| Coherence and Cohesion | 5.0 |
| Lexical Resource | 5.0 |
| Grammatical Range and Accuracy | 5.0 |
| Overall | 5.0 |
Task Achievement / Task Response — Band 5.0
The student attempts to describe the overall process of ethanol production and its cyclical nature. However, the response suffers from several significant inaccuracies and omissions regarding the stages shown in the diagram. For instance, the text misses key stages such as pre-processing and harvesting details in a coherent sequence, and misinterprets the environmental impact by stating that biofuel leads to 'toxicity of Carbon dioxide emissions' and 'environmental polloution' in a way that misrepresents the closed-loop carbon cycle illustrated in the graphic. While the main topic is identified, the ideas are under-developed and fail to provide a clear, comprehensive summary of the visual data. This places the response in Band 5.
Coherence and Cohesion — Band 5.0
The response is divided into three paragraphs, providing some basic organisation. However, progression is frequently disrupted by awkward transitions and poor sentence linking. Devices such as 'Initially' and 'Subsequently' are used, but their mechanical application does not adequately guide the reader through the linear and cyclical steps of the process. Paragraphing is also poorly managed, with the introduction and body being combined awkwardly, and the conclusion appearing abruptly without a clear summary. Referencing is sometimes unclear, particularly with pronouns and dangling modifiers. Cohesion overall is faulty and mechanical, aligning with the descriptors for Band 5.
Lexical Resource — Band 5.0
The vocabulary used is limited and repetitive, with noticeable errors in word choice and spelling throughout the text. Examples include 'cropes' instead of crops, 'procecced' and 'proecessing', 'cutted' instead of cut, 'labortary', and 'polloution'. The student attempts some less common terms like 'microbes', 'cellulose', and 'transportation system', but these are often used inaccurately or combined with spelling errors that cause difficulty for the reader. The range of vocabulary is minimally adequate for the task, but lexical control is weak, justifying a Band 5 score.
Grammatical Range and Accuracy — Band 5.0
The text displays a very limited range of grammatical structures. The student relies heavily on run-on sentences connected by coordinating conjunctions like 'and', resulting in long, convoluted clauses (e.g., 'Initially, the trees and plants are grown by the presence of sunlight and a gas called carbon dioxide...'). There are frequent errors in verb forms, voice, and prepositions, such as 'are grown by the presence', 'cropes and trees harvested', and 'made Cellulose'. Punctuation is also problematic, with missing spaces after periods and comma splices. These frequent errors disrupt readability and reflect Band 5 grammar performance.
See this exact question answered at other band scores — the same prompt compared across bands.
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