Band 6.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 6.0 · 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 6.0)

The diagram illustrate the process of how biofuel as ethanol is made.

Overall, the process consists of eight process steps, beginning with Plants and trees growing and ending with carbon dioxide get produce from the vehicles.

Intially, for energy sunlight snd carbon dioxide needed to grow the plants and trees. After, they grew farmer start harvesting. When harvesting get done, Pre-processing take the place. During this process, Cellulose chemical gets separated.

Following this, checmical lab get started working on Cellulose. Then, chemical lab provide the sugar in liquid from that process.Subsequently, in that chemical sugar, Microbes get added. And, that produce the Biofuel which is called Ethanol.

In the final stage, this Ethanol(bio fuel) work as a fuel in mutiple vehicles such as cars, big trucks and flying aeroplane. While, this vehicle start using the biofuel they produce the Carbon dioxide in the atmosphere. This carbon dioxide helps as a energy to grow the plants and trees.That's how this cycle get repeat and repeat.

AI examiner evaluation

Task Achievement / Task Response: Band 6.5

You cover the main stages and give a relevant overview of the cycle, noting that it begins with plant growth and that carbon dioxide from vehicles returns to support further growth. The sequence from harvesting through pre-processing, cellulose, processing, sugars, microbes and ethanol is also broadly represented. This gives the reader a sound account of the process. However, some details are unclear or not fully supported by the diagram: it does not specify that cellulose is “separated,” that the sugars are liquid, or that a “chemical lab” performs the processing. The overview also calls this eight steps, although the diagram contains more stages. To strengthen the response, describe the labelled stages precisely and avoid adding unsupported explanations.

Coherence and Cohesion: Band 6.5

The response has a clear overall progression, with an overview followed by the production stages and then the use of ethanol and the return of carbon dioxide. Paragraphing helps distinguish these parts, and sequencing expressions such as “Following this,” “Subsequently,” and “In the final stage” guide the reader through the cycle. Some linking is mechanical or awkward, however: “After,” “And,” and “While” do not always connect the ideas smoothly, and the repeated use of “process” and “this” makes a few references less clear. The final sentence effectively closes the cycle, but the explanation could be more concise. Use a wider range of accurate transitions and make each stage connect directly to the next.

Lexical Resource: Band 5.0

You use several relevant process terms, including “harvesting,” “pre-processing,” “cellulose,” “microbes,” and “ethanol,” so the topic is generally identifiable. However, the range and control of vocabulary are limited, with noticeable spelling and word-choice problems that sometimes make the description harder to follow. Examples include “Intially,” “checmical,” “mutiple,” and the unnatural phrases “chemical lab get started working” and “carbon dioxide get produce.” Some wording is also repetitive, particularly “process” and “produce.” Aim for precise, conventional process language and check spelling carefully. For example, describe a stage as “cellulose is processed into sugars” rather than inventing a “chemical lab” as the agent.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more complex sentences, including a sequence of time clauses and the conditional-style explanation of how carbon dioxide supports plant growth. However, control is inconsistent, and errors in verb forms, agreement, articles and sentence construction occur throughout. For instance, “The diagram illustrate” needs subject–verb agreement, while “farmer start harvesting” and “Pre-processing take the place” have incorrect verb forms. “This cycle get repeat” also needs a passive construction. Several clauses are joined awkwardly, as in “When harvesting get done, Pre-processing take the place,” and punctuation around sentence boundaries is inconsistent. Practise accurate present-simple descriptions and passive forms, which are especially useful for process diagrams, while keeping sentence structures manageable.

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