The concept of 'deep time' in geology challenges the human tendency to perceive time on a human scale. Unlike the cyclical rhythms of seasons or the linear progression of a lifetime, deep time encompasses billions of years, during which continents drift, climates shift, and species evolve and vanish. This vast temporal framework was first systematically articulated in the 18th century by James Hutton, who argued that the Earth's history could not be explained by catastrophic events alone but required slow, uniform processes operating over immense durations. Modern geology reinforces this view through radiometric dating, which reveals that some rocks are over four billion years old. However, the human mind struggles to grasp such magnitudes, often leading to a 'temporal provincialism' that underestimates the pace of environmental change. Recognizing deep time is not merely an academic exercise; it is crucial for understanding current climate dynamics, as natural variability operates on timescales far exceeding recorded history.
❓ この文章の主な目的は何ですか?
A. 放射年代測定で使用される技術的手法を説明するために
B. 人間の時間知覚が地質学的・環境的プロセスを理解するには不十分であると論じること。
C. ジェームズ・ハットンの進化論への貢献を説明するために
D. 人類の歴史における循環的および線形的な時間概念を比較するために
✅ 正确答案
To argue that human perception of time is inadequate for understanding geological and environmental processes
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