Today in our environmental science lecture, we discussed the impact of urban green spaces on city temperatures. Professor Thompson explained that parks can reduce local temperatures by up to 5 degrees Celsius due to shade and evapotranspiration. However, he emphasized that the size and distribution of these spaces matter more than their total area. For instance, many small pocket parks scattered across a city are more effective than one large central park, because they cool a wider range of residential areas. He also noted that adding green roofs to buildings can further enhance this effect, but the initial cost remains a barrier for many municipalities.
❓ 根据讲座内容，汤普森教授对城市绿地有何看法？
A. A. 一个大型公园比许多小型公园更有效。
B. B. 绿色空间的总面积是最重要的因素。
C. C. 遍布城市各处的小型公园更为有益。
D. D. 绿色屋顶成本过高，根本不值得考虑。
✅ 正确答案
C. Many small parks spread across the city are more beneficial.