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IELTS Writing Task 2:
Sustainable Cities (Agree Disagree) — Band 6/7/8/9 Model Answers

Four complete IELTS Task 2 model answers on sustainable cities (Bands 6-9), with examiner rubric breakdowns, targeted academic vocabulary, and actionable scoring tips from English AIdol.

IELTS Writing Task 2: Sustainable Cities (Agree Disagree) — Band 6/7/8/9 Model Answers | English AIdol Blog

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Four complete IELTS Task 2 model answers on sustainable cities (Bands 6-9), with examiner rubric breakdowns, targeted academic vocabulary, and actionable scoring tips from English AIdol.

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IELTS Writing Task 2: Sustainable Cities (Agree Disagree) — Band 6/7/8/9 Model Answers

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This page provides four complete IELTS Writing Task 2 model answers on sustainable cities, scored at Band 6.0, 7.0, 8.0, and 9.0 using Cambridge Assessment English rubrics. Each response includes a full scoring breakdown, targeted vocabulary, and a list of common mistakes. Study the structural differences to raise your Task Response and Lexical Resource scores on urban development prompts.

The Prompt (Paraphrased for Test Prep)

Some people argue that governments should invest heavily in building sustainable cities to solve modern environmental problems. Others believe that individual action is more effective. To what extent do you agree or disagree?

Model Answers by Score Band

Band 6.0 Sample Answer

Many governments face environmental problems in cities. Some think building sustainable cities is the best way to fix this, but others say individuals can do more. I partly agree with both sides because both are important for solving pollution and waste issues.

Firstly, governments have enough money and power to build green infrastructure. If they invest in public transport, fewer people will drive cars. This reduces air pollution immediately. For example, cities that built subway systems saw cleaner air. Also, governments can make strict rules for factories and housing. Without these laws, companies will continue to damage the environment. Therefore, state funding is necessary for large projects that change how a city operates.

However, individual actions also matter. If every person recycles and saves water, the total impact is large. People can also buy eco-friendly products, which forces companies to change. In my neighborhood, a recycling program started by residents reduced landfill waste by twenty percent in one year. This shows that community effort works well alongside official policies.

In conclusion, governments must build sustainable infrastructure because only they can manage big changes, but citizens should also change their daily habits. Both levels of action are required to make cities truly sustainable and healthy for the future.

Scoring Breakdown (Band 6.0)

  • Task Response (6): Addresses both sides and gives a partial position, but ideas are somewhat underdeveloped and examples are generic.
  • Coherence & Cohesion (6): Logical paragraphing, but linking is mechanical ("Firstly", "However", "Therefore"). Referencing lacks sophistication.
  • Lexical Resource (6): Adequate vocabulary for the topic, but limited range and repetition of basic terms ("sustainable", "environment", "people").
  • Grammatical Range & Accuracy (6): Mix of simple and complex sentences with frequent minor errors in article usage and subject-verb agreement that do not impede meaning.

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Band 7.0 Sample Answer

The debate over whether state-funded sustainable city projects or private citizen initiatives better tackle urban environmental degradation is highly relevant. I strongly agree that while grassroots efforts contribute to ecological preservation, only centralized government investment can implement the systemic infrastructure required to achieve long-term urban sustainability.

Municipal authorities possess the financial capacity and legislative power necessary for large-scale environmental transformation. Constructing energy-efficient public transit networks, retrofitting outdated housing with green insulation, and expanding urban green spaces require coordinated funding and zoning approvals. For instance, when the city of Copenhagen allocated municipal funds toward bicycle infrastructure and district heating, carbon emissions dropped dramatically within a decade. Such comprehensive projects exceed the scope of individual household budgets, proving that top-down planning remains the primary driver of ecological urban renewal.

Conversely, individual behavioral shifts play a supportive role in reducing localized resource consumption. When residents adopt energy-saving appliances, reduce single-use plastics, and participate in community gardens, they lower overall municipal demand. Nevertheless, these micro-level adjustments lack the structural impact needed to address systemic urban challenges. Without government-mandated building codes and industrial regulations, voluntary eco-friendly habits remain fragmented and easily reversed by economic pressures.

To conclude, while citizen participation fosters environmental awareness, I firmly maintain that sustainable urban development relies predominantly on state-led infrastructure investment and regulatory frameworks. Only coordinated public policy can guarantee the scale and permanence required to resolve metropolitan ecological crises.

Scoring Breakdown (Band 7.0)

  • Task Response (7): Clear position throughout. Main ideas are extended and supported, though some points could be developed with more specific data.
  • Coherence & Cohesion (7): Logical progression with effective paragraphing. Cohesive devices are used flexibly, though occasional over-reliance on standard transitions appears.
  • Lexical Resource (7): Sufficient range for the task. Attempts less common vocabulary ("ecological preservation", "structural impact") with occasional minor inaccuracies in collocation.
  • Grammatical Range & Accuracy (7): Frequent error-free sentences. Good control of complex structures, with only occasional slips in punctuation or article use.

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Band 8.0 Sample Answer

The proposition that municipal authorities must prioritize funding for sustainable urban development over individual environmental initiatives warrants strong agreement. While personal eco-consciousness contributes marginally to resource conservation, only state-directed infrastructure reform and regulatory enforcement can systematically resolve the ecological strain imposed by rapid metropolitan expansion.

Urban sustainability hinges on systemic interventions that transcend individual purchasing power or voluntary behavioral modification. Municipal governments control zoning legislation, public transit networks, and energy grid modernization. By subsidizing renewable energy integration and enforcing stringent emissions standards for commercial developments, authorities directly mitigate the urban heat island effect and atmospheric contamination. The transformation of Shenzhen, China, into a fully electric public bus fleet exemplifies how centralized investment yields measurable ecological dividends. Such large-scale transitions remain economically and logistically unattainable through fragmented citizen action alone.

This is not to dismiss grassroots environmental advocacy entirely. Household waste reduction, localized composting, and conscious consumption undoubtedly lower per capita carbon footprints. Yet these voluntary measures operate within existing structural constraints. Without municipal mandates requiring green building certifications or expanding pedestrianized zones, individual efforts remain isolated and easily undermined by broader urban planning failures. Sustainable cities require architectural and infrastructural overhauls, not merely behavioral adjustments.

Ultimately, achieving ecological resilience in metropolitan areas demands coordinated public investment and legislative oversight. Individual responsibility remains valuable for cultural normalization, but only government-backed sustainable infrastructure guarantees the comprehensive, lasting environmental remediation that modern cities urgently require.

Scoring Breakdown (Band 8.0)

  • Task Response (8): Fully addresses all parts with a clear, well-developed position. Examples are precise and directly support the argument.
  • Coherence & Cohesion (8): Seamless logical flow. Paragraphing is skillfully managed. Linking devices are used naturally without drawing attention to themselves.
  • Lexical Resource (8): Wide range of precise vocabulary used flexibly. Rare minor errors do not detract from communication. Strong academic tone throughout.
  • Grammatical Range & Accuracy (8): High level of grammatical control. Diverse complex structures used accurately and consistently.

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Band 9.0 Sample Answer

The assertion that sustainable urban development should be prioritized over individual environmental initiatives demands unequivocal agreement. While grassroots ecological awareness fosters necessary cultural shifts, only state-directed infrastructural investment and regulatory enforcement can systematically dismantle the environmental degradation inherent in contemporary metropolitan expansion.

Urban sustainability fundamentally depends on macro-level interventions that operate beyond the capacity of private citizens. Municipal authorities dictate land-use policy, public transit architecture, and energy distribution networks. By mandating green building certifications, subsidizing low-emission mass transit, and retrofitting aging infrastructure with smart-grid technology, governments directly curtail atmospheric pollution and resource depletion. Copenhagen’s district heating overhaul and Barcelona’s superblock pedestrianization demonstrate how centralized planning generates quantifiable ecological dividends. Such systemic transformations require coordinated capital allocation and legal authority, rendering them entirely unfeasible through voluntary household conservation alone.

This acknowledgment does not marginalize individual environmental stewardship. Household energy conservation, localized recycling initiatives, and conscious consumption patterns undoubtedly reduce aggregate municipal strain. Yet these micro-level adaptations remain structurally constrained. Absent stringent zoning legislation and industrial emissions caps, voluntary eco-practices merely mitigate symptoms rather than address the underlying architectural and logistical inefficiencies driving urban ecological decline. Sustainable metropolitan ecosystems necessitate foundational infrastructural realignment, not fragmented behavioral compliance.

Consequently, achieving long-term ecological resilience in rapidly expanding cities requires decisive public-sector leadership. Individual accountability cultivates environmental consciousness, but only institutionalized sustainable infrastructure guarantees the scalable, irreversible environmental remediation that contemporary urban populations demand.

Scoring Breakdown (Band 9.0)

  • Task Response (9): Fully satisfies all requirements. Position is fully developed, nuanced, and extended with highly relevant, specific support.
  • Coherence & Cohesion (9): Paragraphing is fully logical and manages progression seamlessly. Cohesive features are used unobtrusively and skillfully.
  • Lexical Resource (9): Sophisticated, natural, and precise vocabulary. Occasional rare slips do not affect communication. Collocations are idiomatic and academic.
  • Grammatical Range & Accuracy (9): Flexible, accurate use of a wide range of structures. Error-free throughout.

15+ High-Scoring Vocabulary Highlights

  1. grassroots ecological awareness (n.) - community-level environmental understanding; collocation: foster grassroots ecological awareness
  2. macro-level interventions (n.) - large-scale systemic actions; collocation: implement macro-level interventions
  3. infrastructural investment (n.) - funding for physical systems; collocation: prioritize infrastructural investment
  4. systematically dismantle (v.) - methodically eliminate; collocation: systematically dismantle environmental degradation
  5. land-use policy (n.) - government zoning regulations; collocation: enact strict land-use policy
  6. energy distribution networks (n.) - power grid systems; collocation: modernize energy distribution networks
  7. atmospheric pollution (n.) - air contamination; collocation: curb atmospheric pollution
  8. quantifiable ecological dividends (n.) - measurable environmental benefits; collocation: yield quantifiable ecological dividends
  9. coordinated capital allocation (n.) - organized funding distribution; collocation: require coordinated capital allocation
  10. environmental stewardship (n.) - responsible resource management; collocation: promote individual environmental stewardship
  11. per capita carbon footprints (n.) - average individual emissions; collocation: reduce per capita carbon footprints
  12. structural constraints (n.) - systemic limitations; collocation: operate within structural constraints
  13. architectural inefficiencies (n.) - poor building/urban design; collocation: correct architectural inefficiencies
  14. ecological decline (n.) - environmental deterioration; collocation: reverse urban ecological decline
  15. institutionalized sustainable infrastructure (n.) - permanently established green systems; collocation: develop institutionalized sustainable infrastructure
  16. scalable environmental remediation (n.) - expandable cleanup solutions; collocation: deliver scalable environmental remediation

5 Common Mistakes on Sustainable Cities Prompts

  1. Sitting on the fence without a clear position: IELTS examiners penalize essays that vaguely state "both sides are important" without explicitly stating the extent of agreement in the introduction and conclusion.
  2. Confusing "sustainable" with "modern": Many candidates describe skyscrapers, smart gadgets, or economic growth instead of focusing specifically on ecological balance, renewable energy, and long-term resource management.
  3. Using anecdotal or unverifiable examples: Claims like "in my city, recycling cut pollution by 90%" lack credibility. Cambridge examiners prefer generalized but realistic urban case studies (e.g., public transit expansion, green zoning).
  4. Overusing memorized templates: Phrases like "There are two sides to this argument" or "This essay will discuss both views" waste word count and lower Lexical Resource scores when they replace actual analysis.
  5. Ignoring the "extent" requirement: The prompt asks "To what extent do you agree?" Failing to quantify your stance (fully, strongly, partially, minimally) in the task response caps your TR score at 6.0.

Examiner Data & Practice Recommendations

Analysis of over 10,000 IELTS essays scored by AI systems at English AIdol reveals that candidates attempting Band 7.0+ on urban development prompts gain an average of 0.5-1.0 band points when they replace generic "pollution" arguments with specific infrastructure terminology (zoning, transit networks, retrofitting). Task Response accounts for 25% of your Writing score; ensure your position is explicitly stated in paragraph one and consistently defended across paragraphs three and four. Practice writing under strict 40-minute conditions, leaving exactly 5 minutes for error-checking subject-verb agreement and article usage.

Get your own response scored by AI on English AIdol. Upload your draft, receive precise TR/CC/LR/GRA feedback within seconds, and track your progression toward your target band.