Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-14

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 diagram illistrates about a biofuel production how ethanol is made. I will explain in the following.

First of all the process is started in biofuel production their ethanol is made plants and trees growing with energy like sunlight and carbon dioxide than harvesting is started. After completing the harvesting pre processor is starded and than cellulose method is stared. Two process is very hard but other process is very easy.

After completing the cellulose processing of biofuel and then sugars are ready after this process microbes added in ethanol and than carbon dioxide process is started at the end the process is completed ethanol production is ready with biofuel.

In conclusion, this process is started of growing of plants and trees with different energies. At the end the process is completed with ethanol is added in carbon dioxide. While this process is very long but it is more easy.

AI examiner evaluation

Task Achievement / Task Response: Band 4.0

You identify the general subject and mention several genuine stages, including plant growth, harvesting, cellulose, sugars and microbes. However, the account only minimally reports the diagram: the sequence is often unclear, and key links are missing or misrepresented. For example, you say “microbes added in ethanol,” whereas microbes are added after sugars and lead to ethanol; you also suggest carbon dioxide is added to ethanol at the end. The overview does not explain the defining feature of the diagram: carbon dioxide released when ethanol is used by transport returns to support plant growth, making this a cycle. The comments that the process is “very hard” or “very easy” are unsupported and do not describe a visible feature. Focus on accurately summarising the stages and the cycle.

Coherence and Cohesion: Band 5.5

The response has a basic paragraph structure, with an opening, two process paragraphs and a conclusion, and it uses simple sequencing phrases such as “First of all,” “After completing” and “In conclusion.” These give the reader some sense of order. However, progression is not consistently clear: several stages are compressed into long sentences, and links between them are sometimes confusing. The repeated “after completing” and “than” do not reliably show the relationships in the diagram, while the conclusion repeats the opening rather than summarising the cycle. Organise the stages in distinct, chronological steps and use precise links such as “next,” “following this,” and “finally.”

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “harvesting,” “cellulose,” “sugars,” “microbes” and “ethanol,” so the topic is recognisable. However, the range is limited and several phrases are repetitive or imprecise, such as “the process is completed” and “biofuel production is ready.” Some word choices make the meaning difficult to follow, particularly “microbes added in ethanol” and “ethanol is added in carbon dioxide.” There are also noticeable spelling errors, including “illistrates,” “starded” and “stared.” Use the diagram’s labels accurately and choose standard process language, for example “is converted into,” “is released,” and “is used as fuel.”

Grammatical Range and Accuracy: Band 4.5

You attempt to connect ideas in longer sentences, but sentence structures are limited and errors are frequent enough to obscure relationships between stages. For instance, “the process is started in biofuel production their ethanol is made plants and trees growing” lacks clear clause boundaries and has faulty verb forms. “After completing the harvesting pre processor is starded” also omits a clear subject and uses an incorrect construction. Articles, agreement and tense are inconsistent, as in “Two process is very hard,” and punctuation does not consistently separate complete ideas. Practise writing one clear sentence for each stage, using passive forms where appropriate: “The plants are harvested, then pre-processed.” This will improve accuracy and make the sequence easier to understand.

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