The concept of 'environmental carrying capacity' is central to ecological studies, yet its application to human populations remains contentious. Unlike non-human species, humans can modify their environment through technology, trade, and migration, thereby temporarily raising their carrying capacity. However, such modifications often entail hidden costs, such as resource depletion and pollution, which may undermine long-term sustainability. Recent research suggests that while technological innovation has historically postponed the limits to growth, it cannot indefinitely offset the finite nature of Earth's resources. This has led some scholars to advocate for a 'steady-state economy' that prioritizes qualitative development over quantitative expansion, arguing that perpetual economic growth is ecologically impossible. Critics, however, contend that such views underestimate human ingenuity and the potential for decoupling economic activity from environmental impact. The debate thus hinges on whether the planet's limits are absolute or can be continually stretched by human adaptation.
❓ この文章によると、人間の人口における環境収容力に関する主な論点は何ですか?
A. A. 技術が天然資源を完全に置き換えることができるかどうか
B. B. 地球の資源限界が固定されているのか、それとも人間の革新によって拡張可能なのか
C. C. 定常状態経済が成長基盤の経済よりも公平であるかどうか
D. D. 汚染が資源枯渇よりも大きな脅威であるかどうか
✅ 正确答案
B. Whether Earth's resource limits are fixed or can be extended by human innovation
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