The concept of 'green infrastructure' has gained significant traction in urban planning as a means to mitigate the adverse effects of climate change. Unlike traditional gray infrastructure, which relies on concrete and steel to manage stormwater, green infrastructure employs natural systems such as permeable pavements, green roofs, and urban forests. These features not only reduce flooding by absorbing rainfall but also improve air quality and provide recreational spaces. However, the implementation of green infrastructure is not without challenges. High upfront costs, maintenance requirements, and the need for interdisciplinary collaboration often hinder its adoption. Moreover, its benefits are not evenly distributed, with wealthier neighborhoods more likely to receive such investments, exacerbating environmental inequality. Despite these obstacles, proponents argue that long-term savings in healthcare and energy costs, coupled with enhanced community resilience, justify the initial expenditure. Thus, policymakers must carefully weigh the trade-offs to ensure equitable and sustainable urban development.
❓ Theo đoạn văn, một nhược điểm lớn của cơ sở hạ tầng xanh là gì?
A. Kém hiệu quả hơn so với hạ tầng xám trong việc giảm ngập lụt.
B. Nó đòi hỏi vốn đầu tư ban đầu cao và chi phí bảo trì liên tục.
C. Nó góp phần gây ô nhiễm không khí ở các khu vực đô thị.
D. Nó chỉ phù hợp với những khu phố giàu có.
✅ 正确答案
It requires high initial investment and ongoing maintenance.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first