Band 5.5 IELTS Writing Task 1 Model Answer

Overall Band Score: 5.5 · Cambridge IELTS 19 · 2026-10-18

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 chart describe the various stages of biofuel production called ethanol in nature which include the participation of flora and mechanical methods.

Overall, it is quite interesting to know biofuel production cycle which has specific stages to circulate ethanol for definite purpose of nature.

It is evident from the picture that plants and trees grow by useing energy resources like sunlight and carbon dioxide from the environment. Then these are pre-processed through machine and form cellulose. While processing method, sugar is manufactured throgh sugarcanes . Sugar contains microbes which produce ethonal to use it as fuel . During all process, ethonal is produced for further utilization. Afterthat, ethonal is added in the petrol and diesel .

Probing ahead, ethonal is used in various source as fuel. Ethonal refill in the cars, trucks, areoplanes via fossil fuels . Further, it emits carbon dioxide in the environment. This carbon dioxide consume by tree and plant to do photosynthesis.

AI examiner evaluation

Task Achievement / Task Response: Band 5.5

You identify the process as a cycle and report several central stages, including plant growth, pre-processing, cellulose, processing, ethanol use in transport, and carbon dioxide returning to plants. However, some details are inaccurate or unsupported: the diagram does not show sugarcane, sugar containing microbes, or ethanol being added to petrol and diesel. It shows sugars produced during processing, followed by microbes being added to produce ethanol. Harvesting is also an important stage that is omitted. The overview is vague (“specific stages to circulate ethanol”) rather than clearly summarising the cycle from plant growth through fuel use and carbon dioxide absorption. More precise reporting of the sequence and a clear overview would strengthen the response.

Coherence and Cohesion: Band 5.5

The response has a basic paragraph structure, moving from an introduction and overview to production stages and then fuel use and emissions. This gives the reader some sense of progression. However, the sequence is not consistently clear: “While processing method” and “Sugar contains microbes” blur the relationship between processing, sugars, and the addition of microbes. Connectors such as “Overall,” “Then,” and “Further” are used, but some transitions feel mechanical or do not accurately signal the relationship between ideas. The final paragraph also repeats the use of ethanol and carbon dioxide without smoothly linking it back to the cycle. Organise the stages in the diagram’s exact order and use clearer references such as “this material” or “the resulting sugars” to improve cohesion.

Lexical Resource: Band 5.0

You use some relevant process vocabulary, including “pre-processed,” “cellulose,” “microbes,” “fuel,” and “carbon dioxide,” which helps communicate the topic. However, the range is limited and several word choices or collocations are inaccurate, sometimes making the process difficult to understand. For example, “sugar is manufactured throgh sugarcanes” introduces a source not shown in the diagram, while “ethonal refill in the cars” is not a natural way to describe fuel use. There are also noticeable spelling errors, including “useing,” “throgh,” “ethonal,” and “areoplanes.” Choose precise process verbs such as “is converted into” and “is used to power,” and check spelling carefully.

Grammatical Range and Accuracy: Band 5.0

You attempt both simple and more complex sentences, including “It is evident from the picture that…” and “Further, it emits carbon dioxide…”. However, errors in sentence structure and grammatical forms are frequent enough to make some relationships unclear. For example, “The flow chart describe” has a subject–verb agreement error, and “This carbon dioxide consume by tree and plant” lacks a passive verb and has incorrect singular/plural forms. The sentence beginning “While processing method” is also incomplete in its construction. Work on accurate passive forms for process descriptions (“is processed,” “is converted,” “is released”), agreement, and articles. Shorter, carefully checked sentences would help you express the stages more clearly while you build control of complex structures.

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