Band 5.0 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.0 · Cambridge IELTS 19 · 2026-10-23

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 below illustrates how a organic fuel called ethanol is made.

Ethanol made with the help of trees and laboutries and then it is used in cars truks and airplanes and then carbon dioxide is produce.

Firstly, ethanol is made with the help of trees and palnts. trees grow with the help of carbon dioxide and sunlight. Secondly, farmer use their tractors to harvesting plant and trees and then pre-processing in machines and then mix with cellulose. Thirdly, it is processing in labourtries and one other thing. At the end of this process it is added in microbes and ethanol is made and it is use in different engines such as cars, airplanes, trucks which produce carbon dioxide.

AI examiner evaluation

Task Achievement / Task Response: Band 4.5

You identify the main subject and several stages, including plant growth, harvesting, processing, the addition of microbes, and ethanol use in transport. However, the response only partially reports the diagram: it does not clearly explain the conversion from cellulose to sugars, and it omits the important circular return of carbon dioxide to support further plant growth. The phrase “one other thing” leaves a key stage unclear, while “mix with cellulose” misrepresents the sequence: pre-processing produces cellulose, which is then processed into sugars. The overview is also limited, and the response is 31 words below the required minimum. To improve, give a concise overview of the cycle and describe each main stage accurately, including the carbon-dioxide loop.

Coherence and Cohesion: Band 5.5

The response has a basic sequence, signalled by “Firstly,” “Secondly,” “Thirdly,” and “At the end,” so the reader can follow the general movement from plants to fuel. There is also an opening statement that introduces the process. However, the organisation is repetitive and the stages are compressed into a few long sentences, with repeated “and then” links rather than clear relationships between steps. The paragraphing does not separate an overview from the detailed stages, and “one other thing” interrupts the progression because it does not identify what follows. Use a short overview paragraph, then group the production stages and the fuel-use/carbon-dioxide cycle in a logical sequence with precise linking phrases.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “pre-processing,” “cellulose,” “microbes,” and “carbon dioxide,” which helps communicate the topic. However, the range is limited and several choices are inaccurate or too informal for a process description. “Organic fuel” is less precise than “biofuel,” “mix with cellulose” does not describe the diagram’s conversion stages, and “one other thing” is vague. Spelling errors such as “laboutries,” “palnts,” and “truks” also reduce clarity. Aim to use accurate process terms and avoid repeating general words such as “made” and “help.” For example, describe materials as being “converted into” or “processed into” the next product.

Grammatical Range and Accuracy: Band 5.0

You attempt to connect several stages in longer sentences and use sequencing expressions, but the grammatical range is limited and errors occur frequently. Examples include “how a organic fuel” (article agreement), “farmer use” (subject–verb agreement), “to harvesting” (incorrect verb form), and “it is use” (passive verb form). The sentence “Secondly, farmer use their tractors to harvesting plant and trees and then pre-processing in machines” also lacks a clear grammatical structure for the later stages. Most sentences rely on simple clauses joined with “and then.” Practise accurate passive forms for processes, such as “the plants are harvested” and “the material is processed,” and vary sentence structures while checking articles, agreement, and verb forms.

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