The diagram below shows the process for recycling plastic bottles.
Sample Response
The yielded diagram reveals the stages in plastic bottles recycling.
Overall, it can be seen that this is a cyclone process; plastic bottles recycling has various stages, from collecting the plastic to making products.
In the first stage, collect plastic bottles from dustbin thrown by a citizen, this work is done by trucks or lorry. In the third stage, the collected bottles sort in the recycling centre by labour. In the next stage, those bottles are recyclable, and those make into blocks by compressing and later crushed by a machine. As a result, they turn into plastic pieces that wash in water.
In the sixth stage, for producing plastic pellets grinding washed plastic pieces after that yield specific heat. In the eighth stage, it becomes row material which uses for producing plastic items or other products such as a t-shirt. After this stage, people throw the product into the dustbin after usage, and the later process is the same.
IELTS Writing Correction
- 1. Use standard term Original: yielded Suggested revision: given Why it matters: “Given diagram” is the conventional phrase for referring to the supplied visual.
- 2. Correct noun phrase Original: bottles Suggested revision: bottle Why it matters: Use the singular noun “bottle” attributively before “recycling.”
- 3. Use passive voice Original: collected bottles sort Suggested revision: collected bottles are sorted Why it matters: The bottles receive the sorting action, so a passive verb is required.
- 4. Name the workers Original: labour Suggested revision: workers Why it matters: “Workers” refers naturally to the people shown sorting the bottles.
- 5. Use passive form Original: they turn into Suggested revision: they are turned into Why it matters: A machine performs the crushing, so the passive form is needed.
- 6. Use passive form Original: that wash in water Suggested revision: that are washed in water Why it matters: The plastic pieces receive the washing action.
- 7. Fix clause structure Original: for producing plastic pellets grinding washed plastic pieces Suggested revision: the washed plastic pieces are ground to produce plastic pellets Why it matters: The replacement supplies a subject and finite verb while preserving the stated stage.
- 8. Clarify heating stage Original: after that yield specific heat Suggested revision: which are then heated Why it matters: The passive clause clearly states that the pellets undergo heating next.
- 9. Match plural subject Original: it becomes Suggested revision: they become Why it matters: The pronoun should agree with the plural pellets mentioned previously.
- 10. Correct word choice Original: row Suggested revision: raw Why it matters: “Raw material” is the correct term for the material used to make new products.
- 11. Use passive verb Original: which uses Suggested revision: which is used Why it matters: The raw material is used to produce the final items.
- 12. Remove vague wording Original: plastic items or other products Suggested revision: new plastic products Why it matters: This concise phrase accurately covers the range of end products shown.
Suggested Rewrites
- yielded given
- bottles bottle
- collected bottles sort collected bottles are sorted
- labour workers
- they turn into they are turned into
- that wash in water that are washed in water
Why this response received Band 5.5
The response identifies the process as cyclical and traces nearly all major stages in a generally recognizable order. Its main limitation is pervasive grammatical and lexical inaccuracy, which makes several descriptions of sorting, pellet production, heating, and raw-material formation difficult to follow. The highest priority is to describe each stage with accurate passive verb forms and precise process vocabulary while preserving the clear start-to-finish sequence.
IELTS Writing Criteria Scores
Task Achievement
The response provides a valid overview and covers almost every stage, although several operations are expressed imprecisely and the rejection of unsuitable bottles is not clearly reported.
Describe the nine stages accurately in sequence, including sorting out non-recyclable bottles and heating pellets to create raw material.
Coherence and Cohesion
The overview and two body paragraphs give the process a recognizable progression, but stage numbering and some sentence connections are confusing.
Use consistent sequencing expressions and give each sentence one clearly ordered stage or closely linked pair of stages.
Lexical Resource
Relevant process vocabulary is attempted, but frequent inaccurate choices such as "cyclone," "yielded," and "row material" reduce precision.
Use exact process terms such as cyclical, collected, sorted, compressed, crushed, washed, heated, and raw material.
Grammatical Range and Accuracy
Frequent errors in articles, verb forms, agreement, and clause construction cause strain, although the main sequence remains understandable.
Build complete passive sentences for each stage, for example, "The bottles are sorted and then compressed into blocks."
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IELTS Academic Writing Task 1
The diagram below shows the process for recycling plastic bottles.
Your response
Write the task yourself, then compare your choices with the annotated response.