Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-20

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 shows the method of formation of ethanol which will be used in vehicles. The round shaped diagram clearly explains the steps from which the process of forming of this product is go through. I will write down the features and procedure of biofuel formation.

Initially, the agricultural wastage come from the crops will be processed in a highly condensed scientific operating equipments in industries. As a result, it will be converted into cellulose a chemical further prossessed in particular labortories under multi-stages. The molecules of these chemicals will produce sugars having microbes in it. After that, these microbes will be used as ethanol will be burn the engines of our transport vehicles.

The transport vehicles will burn this fuel contain ethanol and release hazards like carbon dioxide which will be dangerous for human being. According to science, carbon dioxide is dangerous for humans and benificial for plants as they inhale this gas. For this purpose, it will be add in our air and become diet of plants which again processed in agricultural process and comes into the process of the formation of ethanol.

AI examiner evaluation

Task Achievement / Task Response: Band 5.0

You identify the diagram as a process for producing ethanol and mention several relevant stages, including cellulose, sugars, microbes, transport use and carbon dioxide returning to plants. However, the account only partially covers the process: it omits the initial role of sunlight and carbon dioxide in plant growth, and does not clearly describe harvesting, pre-processing and processing as distinct stages. Some details are inaccurate or unsupported: the diagram shows plant material being processed, not specifically agricultural waste, and microbes are added to sugars rather than being used as ethanol. The overview also focuses on hazards to humans, which is not a main feature of this process diagram. A clearer summary of the full cycle and its key stages would make the response more complete.

Coherence and Cohesion: Band 5.5

The response has a basic sequence, moving from the material being processed to fuel use and then carbon dioxide returning to plants. Paragraphing separates the production stages from the cycle’s final part, and transitions such as “Initially,” “After that,” and “For this purpose” help signal movement between ideas. However, progression is not consistently clear because several stages are compressed or linked inaccurately—for example, “these microbes will be used as ethanol” obscures the relationship between sugars, microbes and ethanol. The introduction also announces that you will “write down the features,” rather than giving a concise overview. Organise the body around the production stages, then explain the carbon cycle, using precise links between each step.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “cellulose,” “sugars,” “microbes,” “ethanol” and “carbon dioxide,” which helps identify the subject. There is also an attempt to use more formal language, such as “formation” and “processed.” However, word choice and collocation are often inaccurate or awkward, sometimes making the process difficult to understand: “agricultural wastage come from the crops,” “highly condensed scientific operating equipments,” and “diet of plants” do not describe the diagram naturally. Spelling errors such as “prossessed,” “labortories” and “benificial” are also noticeable. Prefer direct, accurate process terms—for example, “plant material,” “pre-processing,” and “carbon dioxide is absorbed by plants”—rather than elaborate phrases that do not fit the context.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more complex sentences, including clauses beginning “which” and “as,” and the overall meaning can usually be followed. However, complex structures are often faulty, and errors occur frequently in verb forms, agreement, articles and sentence construction. Examples include “the agricultural wastage come,” “the process … is go through,” and “it will be add in our air.” The sentence “After that, these microbes will be used as ethanol will be burn the engines” combines clauses without a workable grammatical relationship. These problems sometimes make the sequence hard to interpret. Build accuracy with shorter sentences first, checking subject–verb agreement and verb forms, then connect stages with correctly formed clauses such as “Microbes are added to the sugars, producing ethanol.”

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