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上期划线句答案
Surely these animals, adapted over millennia to navigate the ocean, must easily bypass any barrier around which they can theoretically swim.
毕竟，这些动物经过数千年的进化，已经适应了在海洋中活动，理论上它们应该能够轻松游过任何障碍。
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本期内容
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双语阅读
Para.1
A dropped bag of Cheetos dramatically disturbed a delicate cave ecosystem in Carlsbad Caverns National Park, New Mexico, according to a Facebook post from park officials on September 6. This cavern is almost entirely cut off from the outside world so introducing anything alien can be catastrophic. “The cave has 90 to 100 percent humidity so things get soggy pretty quickly,” says park guide Ashley Parsons. The mushy snack attracts microbes, encouraging mold growth. Soon, critters—like crickets, spiders, and bats—swoop in to feed, spreading contamination.
Para.2
With more than 500 million people visiting American public lands each year, there are countless opportunities to harm our wild places. “When you look at the scale, it's incredible,” says Dana Watts, executive director of the Leave No Trace Center in Colorado. Visiting a park without leaving a trace isn’t just about keeping nature clean—here’s the science behind why it protects wildlife.
Para.3
While the discarded chips were quickly removed from Carlsbad Caverns, food waste can take a long time to decompose, especially in certain environments. “It takes much longer for an apple core or banana peel to decompose in a desert versus a wetland area or boreal forest,” says Clara-Jane Blye, assistant professor of sustainable tourism at the University of Utah and board member of Leave No Trace Canada.
Para.4
Packaging is even worse. “If we drop things like plastic bags or metal cans or other trash into the ocean, the decay times might be centuries to millennia,” says Carlos Duarte, professor of marine science at King Abdullah University of Science and Technology in Saudi Arabia. Leaving waste introduces animals to an unnatural diet and changes their behavior with sometimes catastrophic consequences. When birds or fish mistake plastic for food, it fills up their stomachs so they can’t eat. “They basically starve to death,” says Blye.
Para.5
Biological waste is also problematic. Dog feces introduce new pathogens into the ecosystem and the trace of this predator disturbs ungulate species, like deer and elk. Meanwhile, human excrement and toilet paper introduces e-coli into water sources. “It can make us very, very sick,” says Blye.
本文节选自：National Geography（国家地理）
发布时间：2024.9.19
作者：Environment
原文标题：How one bag of chips disrupted an entire ecosystem
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写作句总结
原句：When birds or fish mistake plastic for food, it fills up their stomachs so they can’t eat.
结构：When X mistakes Y for Z, it leads to A so they can’t B.
当X（某人或某物）把Y（某物）误认为Z（另一种事物）时，导致A（结果），以至于他们不能B（做某事）。
例句：When individuals mistake convenience for necessity, it leads to wastefulness so they can’t appreciate what they truly need.
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阅读理解题
What is the most appropriate title for the passage?
A) The Impact of Human Waste on Ecosystems
B) The Benefits of National Parks
C) How Cheetos Can Ruin a Cave
D) The Importance of Wildlife Conservation
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翻译 | 大橙子
校对 | 慢慢
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写作句总结 | 大橙子
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