Today in our environmental science lecture, we're discussing urban green spaces. A recent study in Melbourne found that adding more parks and trees in city centers can reduce local temperatures by up to 2 degrees Celsius during heatwaves. Interestingly, the effect is strongest when green areas are connected, forming corridors rather than isolated patches. However, the researchers noted that maintenance costs are often underestimated, and they recommend using native plants to lower water usage. Also, community involvement is crucial for long-term success, as residents tend to protect spaces they help design.
❓ メルボルンの研究は、都市の緑地について何を明らかにしましたか？
A. A) それらは、孤立した区画に植えられたときに最も効果的です。
B. B) それらは熱波の際に都市の気温を最大2度下げることができます。
C. C) それらは伝統的な造園よりも多くの水を必要とする。
D. D) それらはほとんどの都市にとって維持するには高すぎる。
✅ 正确答案
B) They can lower city temperatures by up to 2 degrees during heatwaves.