2026 考研英语易错题：长难句结构与语义逻辑辨析
阅读以下段落，回答问题：
Despite the fact that urban green spaces are often hailed as vital oases in concrete jungles, their effectiveness in mitigating the urban heat island effect has been a subject of debate. A recent study suggests that while small, scattered parks may provide localized cooling, their impact is negated by the surrounding built environment, where heat absorbed by asphalt and concrete during the day is released at night. Conversely, large, contiguous green areas with mature tree canopies have been shown to create sustained cooling effects that permeate adjacent neighborhoods, though their implementation is frequently hindered by land scarcity in densely populated cities.
The phrase “negated by” in the passage is closest in meaning to:
A. Enhanced by
B. Offset by
C. Exaggerated by
D. Intensified by
解析：
本题考查对长难句中短语含义的准确判断，需结合上下文的对比逻辑和语义关联进行分析。
- 段落围绕城市绿地缓解热岛效应的有效性展开讨论，先指出小型分散公园能提供局部降温，接着用 “though” 引出转折，说明其影响被周围建筑环境所 “negated”。
- 从 “while” 引导的让步关系和 “conversely” 体现的对比可知，小型公园的降温效果与大型绿地形成反差，而 “negated by” 正是这种反差的体现，意味着小型公园的效果被抵消。选项 B”Offset by”（被抵消）符合此处逻辑，与后文大型绿地 “create sustained cooling effects” 形成对比。
- 干扰项 A（Enhanced by，被增强）和 D（Intensified by，被加剧）与转折逻辑矛盾；C（Exaggerated by，被夸大）侧重程度上的过度表述，与 “周围环境的影响” 这一语境不匹配。
答案：B