The concept of the 'Anthropocene' has gained traction among geologists and environmental scientists as a proposed geological epoch defined by significant human impact on Earth's geology and ecosystems. Unlike previous epochs, which were shaped by natural forces such as volcanic activity or asteroid impacts, the Anthropocene is characterized by markers like plastic pollution, nuclear fallout, and elevated greenhouse gas levels. However, the formal recognition of this epoch remains contentious. Some scholars argue that human influence has been too gradual and diachronous to constitute a clear boundary in the stratigraphic record, while others contend that the mid-20th century 'Great Acceleration' provides a distinct and globally synchronous signal. This debate highlights broader questions about how we define time and our role in shaping planetary history.
❓ 根据文章内容，围绕正式承认“人类世”的争议，主要原因是什么？
A. A. 人間の影響はあまりに急速かつ一様であり、明確な地質学的痕跡を残すには至っていない。
B. B. 提案されたマーカー（例えばプラスチック汚染）は、すべての地域で見られるわけではない。
C. C. 一部の科学者は、人間の影響には明確で世界的に同時性のある層序境界が欠けていると信じている。
D. D. 「大加速」は人類史においてあまりにも早期に発生したため、関連性を持たない。
✅ 正确答案
C. Some scientists believe human influence lacks a clear, globally synchronous stratigraphic boundary.
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)
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