Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-11-12

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 5.5)

The flow diagram demonstrates regarding the bio fuel production and it is also know as ethanol is made. How naturally ethanol is produce.

first of all, plants and trees inhale carbon dioxide and energy from sunlight after they grows moreover the harvesting process is begins that is also known as cutting of trees after the production start it usually made cellulose and then it is send to a factory after factory procedure its produce sugars.

And then they added microbes in sugars in addition then after all the process finally ethanol is made. The ethanol is used in different vehicles like cars, heavy vehicles in addition airplane and they produce carbon dioxide in different ways. the cycling process is repeated after the bio fuel is converted into carbon dioxide as it was started from the sun light as well as carbon dioxide in the form of energy.

All the stages discuss above plays an important role in generating ethanol, skipping any step can affect the process.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the main stages from plant growth and harvesting through processing, sugar production, the addition of microbes, and the use of ethanol in transport. You also recognise the key overall feature: carbon dioxide from transport returns to the plants, completing a cycle. However, some details are inaccurate or unclear. For example, plants do not “inhale” sunlight; the diagram shows sunlight and carbon dioxide supporting their growth. The account also skips the cellulose stage’s place between pre-processing and processing, and “after the production start it usually made cellulose” does not clearly report that sequence. The final comment about skipping steps is not shown in the diagram. A more precise overview and clearer coverage of the stages would make the summary more complete.

Coherence and Cohesion: Band 5.5

The response has a basic sequence, moving from plant growth to harvesting, processing, ethanol, transport and carbon dioxide. Paragraph breaks also separate the process description from the concluding comment. However, progression is not consistently clear: the first paragraph combines several stages in a long, loosely connected sentence, and the order around cellulose and the factory is difficult to follow. Linking phrases such as “moreover,” “in addition” and “after all the process” are repeated or used awkwardly, so they do not always clarify how one stage relates to the next. Organise the account into a clear introduction and overview, followed by stages in diagram order, and use simple links such as “next,” “then” and “finally” only where they show a real sequence.

Lexical Resource: Band 5.5

You use some relevant process vocabulary, including “harvesting,” “cellulose,” “sugars,” “microbes” and “carbon dioxide,” which helps communicate the topic. The range is nevertheless limited, and several word choices or combinations are inaccurate or unnatural, such as “bio fuel production,” “inhale carbon dioxide and energy,” “factory procedure” and “heavy vehicles.” These choices sometimes make the process harder to understand, even though the main subject remains recognisable. Aim for precise terms that match the diagram: for example, describe plants as using sunlight and carbon dioxide to grow, and refer to the factory stage as “processing.” Check spelling and word forms as well, including “ethanol is produced” rather than “ethanol is produce.”

Grammatical Range and Accuracy: Band 5.0

The response attempts both simple and longer sentences, and the reader can generally follow the broad process. However, complex sentences are often faulty, and errors in verb forms, agreement, articles and sentence boundaries occur frequently. Examples include “it is also know,” “after they grows,” “the harvesting process is begins,” and “they added microbes in sugars.” The opening also contains an incomplete or unclear construction: “How naturally ethanol is produce.” Punctuation and capitalisation are inconsistent, particularly where sentences run together after “sunlight” and “carbon dioxide.” Build accuracy with shorter complete sentences first, then combine stages using correctly formed clauses, such as “After harvesting, the plants are pre-processed to produce cellulose.”

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