每天读一段托福难度的原版英文：约 400 词，来自公共领域或开放授权文本。重点不只是“看懂”，而是拆词汇、拆长句、看段落怎样推进，顺手积累可以写进作文里的表达。
选文原则
- 难度向 TOEFL 阅读靠拢，优先自然科学、社会观察、文学随笔和思想史。
- 只放公共领域或开放授权文本；受版权保护的内容只做简短引用和转述。
- 每篇固定包含 Passage、Vocabulary、Sentence Work、Structure Notes 和 Writing Takeaway。
Readings
- Huxley on Reading a Piece of Chalk
- Powell on Canyons and Landscape Evidence
- Lubbock on Ants and Collective Labor
- Darwin on Coral Reefs and Slow Change
- Lyell on Rivers and Geological Time
- Somerville on Ocean Currents and Climate
- Herschel on Measurement and Scientific Progress
- Maxwell on Molecules and Scientific Inference
- Saunders on Hymenoptera and Nesting Habits
- Faraday on the Candle as a Doorway to Science
- Thoreau on Forest Succession
- Wallace on Islands and Distribution
- Tyndall on Glaciers and Slow Motion
- John Burroughs on Birds and Patient Attention
- Gilbert White on Swallows and Observation
- Darwin on Earthworms and Soil
- John Muir on the Economy of Forests
- Huxley on Reading a Piece of Chalk
- Darwin on the Struggle for Existence
