The phenomenon of urban heat islands (UHIs) has garnered significant attention in climate research due to its implications for energy consumption and public health. UHIs occur when metropolitan areas experience higher temperatures than their rural surroundings, primarily because of the abundance of heat-absorbing materials like concrete and asphalt, coupled with reduced vegetation cover. Recent studies suggest that implementing green infrastructure, such as rooftop gardens and permeable pavements, can mitigate these effects by enhancing evaporative cooling and altering surface albedo. However, the efficacy of such measures varies with local climate conditions and urban morphology, necessitating tailored approaches rather than one-size-fits-all solutions.
❓ According to the passage, what is a key factor that limits the effectiveness of green infrastructure in reducing urban heat islands?
A. A) The high cost of installation
B. B) The lack of public support
C. C) The variation in local climate and urban design
D. D) The increased use of concrete in construction
✅ 正确答案
C) The variation in local climate and urban design
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