Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-11-14

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 5.5)

The linear process digram illustrates the process of how biofuel called ethanol is generated.

Overall, the process contains several steps. begin with cultivating plants and ending with carbon dioxide releases in the air.

Initially, the plants and trees grow with the help of energy. After that this trees are harvested with the help of tracktors and than harvested plant send for pre processing and turns them into cellulose. Following this, labs starts processing and turned them into sugars after that, microbes is added. When microbes is added then the next stage is get ethanol in the end and then this ethanol is used by different vehicals such as cars, trucks and airoplane. When this vehicals run then ethanol is burn and and carbon dioxide is produce and relaesed in the air. This is the complete lifecycle of how biofuel production ethanol is made and use in different transportaion for travelling.

AI examiner evaluation

Task Achievement / Task Response: Band 6.0

You cover 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 identify carbon dioxide as part of the cycle, so the account is relevant and gives the reader a general understanding of the process. However, the overview is not fully accurate: the diagram shows carbon dioxide returning to the plants, rather than simply being released into the air. The description also omits the role of sunlight and carbon dioxide in plant growth and does not clearly explain that the transport emissions complete the cycle. To strengthen the response, give a precise overview of the circular nature of the process and describe the key inputs and outputs more clearly.

Coherence and Cohesion: Band 6.0

The response follows the stages in a broadly logical order, and sequencing expressions such as “Initially,” “After that,” and “Following this” help the reader track the process. The opening and closing sentences also frame the description. However, most of the stages are crowded into one long paragraph, and several transitions are joined mechanically, especially in the sentence beginning “When microbes is added.” References such as “this trees” and “this vehicals” are not always clear or consistent. Organise the response into a short overview and a separate process paragraph, and use clearer links between stages rather than repeatedly relying on “after that” and “then.”

Lexical Resource: Band 5.5

You use relevant process vocabulary, including “harvested,” “pre processing,” “cellulose,” “microbes,” and “carbon dioxide,” which allows you to communicate the general sequence. There is also some useful variation in describing the stages. However, several word choices and spelling errors reduce precision, including “digram,” “tracktors,” “vehicals,” and “relaesed.” Some phrases are also unnatural or imprecise, such as “labs starts processing” and “carbon dioxide releases in the air.” Use accurate process terms and check spelling carefully; for example, describe the factory as a processing facility and say that carbon dioxide is emitted and then returned to the plants. This would make the account more precise and natural.

Grammatical Range and Accuracy: Band 5.0

You attempt to connect stages in longer sentences, and the sequence is generally understandable. However, control of verb forms and agreement is inconsistent: “this trees are harvested,” “labs starts processing,” and “microbes is added” do not match their subjects. Tense and sentence construction also cause problems in phrases such as “turned them into sugars” and “the next stage is get ethanol.” The opening overview begins “begin with” without a clear grammatical subject, while repeated “and” joins several clauses into run-on sentences. Use a consistent present simple for process descriptions, check subject–verb agreement, and separate stages into complete sentences. More accurate control of these basic patterns would make your meaning easier to follow.

See this exact question answered at other band scores. The same prompt compared across bands.

Browse more IELTS Writing model answers or get your own writing scored by the same AI examiner.