Band 4.5 IELTS Writing Task 1 Model Answer
Overall Band Score: 4.5 · Cambridge IELTS 19 · 2026-09-18
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 4.5)
The diagram depits the biofuel called ethanol is produced in world.I think people more use biofuel ethnol.
The diagram shows ethnol is produced with help of plants tree and farmer harvest their crops after harvest their crops we are processing their crops in cellulose and next position of crops convert into sugar.Moreover,sugar convert into microbes added and then ethanol is produced completely in other countries.
Inaddition,ethanol transprot from foreign countries to india with help of aeroplane and after that ethanol transport in trucks to their intermadiatry position after that they go by road at consumption place.
Overall,it is evident,ethanol is produced for india in foreign countries they export ethanol in india.
AI examiner evaluation
| Criterion | Band |
|---|---|
| Task Achievement / Task Response | 4.0 |
| Coherence and Cohesion | 4.5 |
| Lexical Resource | 4.5 |
| Grammatical Range and Accuracy | 4.5 |
| Overall | 4.5 |
Task Achievement / Task Response — Band 4.0
The response fails to meet the minimum word count requirement of 150 words, coming in at only 111 words, which significantly impacts Task Achievement. While the student attempts to describe the process shown in the diagram, such as mentioning plants, cellulose, sugar, and microbes, the summary is incomplete and contains inaccurate external assumptions. For example, the student introduces unwarranted specific details not present in the source diagram, claiming that ethanol is produced 'in other countries' and transported 'to India'. Furthermore, the overview is extremely brief and personal opinions ('I think people more use biofuel ethnol') are inappropriately included, preventing the task from being fully or properly addressed.
Coherence and Cohesion — Band 4.5
The text suffers from poor structural organisation and a lack of proper paragraphing. The response consists of four very short, choppy sentences and paragraphs that fail to develop a clear logical progression. Cohesive devices are either missing, misused, or rudimentary (e.g., 'Inaddition', 'Overall,it is evident'), resulting in disjointed transitions between the stages of the process and the external transport references. Referencing and referencing pronouns are unclear throughout, making the overall flow quite difficult to follow for the reader.
Lexical Resource — Band 4.5
The vocabulary used is very basic, repetitive, and heavily reliant on direct lifting or imprecise paraphrasing from the prompt (e.g., repeating 'ethnol', 'plants', 'crops', 'cellulose', 'sugar'). There are numerous spelling and word-choice errors, such as 'depits' for depicts, 'ethnol' for ethanol, 'transprot' for transport, and 'intermadiatry' for intermediary. The student demonstrates a very limited lexical range that struggles to adequately convey the specific technical stages of the diagram, frequently causing strain and ambiguity for the reader.
Grammatical Range and Accuracy — Band 4.5
The grammatical range is extremely limited, consisting mostly of poorly constructed simple sentences and fused clauses, such as 'The diagram depits the biofuel called ethanol is produced in world.' There is a total absence of controlled complex structures. Frequent errors in verb forms, tense consistency, and missing prepositions (e.g., 'transprot from foreign countries to india with help of aeroplane') are pervasive throughout the text. Punctuation and spacing are also frequently faulty, though basic meaning can occasionally be extracted despite the high frequency of grammatical inaccuracies.
See this exact question answered at other band scores — the same prompt compared across bands.
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