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Why Certain Moths Fly Straight Toward Bright Lights — Not Just Any Light
为何某些蛾子只直飞强光源而非任意光源
精读先不看文字,完整听一遍。
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Moths don’t actually love light — they use moonlight and starlight to navigate at night.飞蛾其实并不喜欢光——它们靠月光和星光在夜间导航。
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Their eyes are built to keep a fixed angle between themselves and distant natural light sources.它们的眼睛构造使其能与远处的自然光源保持固定夹角。
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When a nearby bulb replaces the moon, the moth keeps adjusting its flight to hold that same angle.当附近灯泡取代月亮时,飞蛾会不断调整飞行姿态以维持该夹角。
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This causes it to spiral inward until it reaches the lamp or candle flame.这导致它螺旋式向内盘旋,直至抵达灯泡或烛焰。
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Not all moths behave this way — some species avoid artificial lights entirely.并非所有飞蛾都如此——有些种类完全避开人造光源。
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Scientists found that ultraviolet-rich lights attract more moths because their eyes detect UV well.科学家发现富含紫外线的灯光更易吸引飞蛾,因其眼睛对紫外线敏感。
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This mistake rarely happens with sunlight, since it’s too bright and comes from only one direction.这种错误极少发生在阳光下,因为阳光太强且仅来自单一方向。
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Urban lighting now disrupts moth navigation so much that some populations decline near cities.城市照明如今严重干扰飞蛾导航,致使部分种群在城市周边数量下降。
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Biologists track moth flight paths using infrared cameras to map their turning patterns.生物学家用红外摄像机追踪飞蛾飞行轨迹,绘制其转向模式。
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Understanding this helps engineers design streetlights that confuse fewer insects and protect ecosystems.理解这一机制有助于工程师设计干扰更少昆虫的路灯,保护生态系统。
精读 · 大约 10 分钟
听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。
③ 学 · 重点表达
- Not all moths behave this way — some species avoid artificial lights entirely. 并非所有飞蛾都如此——有些种类完全避开人造光源。
- Biologists track moth flight paths using infrared cameras to map their turning patterns. 生物学家用红外摄像机追踪飞蛾飞行轨迹,绘制其转向模式。
- Understanding this helps engineers design streetlights that confuse fewer insects and protect ecosystems. 理解这一机制有助于工程师设计干扰更少昆虫的路灯,保护生态系统。
④ 懂 · 选一选
⑤ 今天会说这一句
Not all moths behave this way — some species avoid artificial lights entirely.
⑥ 跟读并录音
Not all moths behave this way — some species avoid artificial lights entirely.
第一版:录下来、回听、再听标准音。系统打分以后再加。
⑦ 说 · 自己来一句
用今天的表达,自己说一句。
例子:Not all moths behave this way — some species avoid artificial lights entirely.
已记下。连续天数以后会显示在课表里。
陈老师指导
课程开发中,敬请期待。成人和孩子都可以先自学听读、精读。
这边的讲解音轨还在做。想先跟着老师走完固定 30 课,可以去陈老师带读社(和自学通行不是同一份会员)。
课程开发中,敬请期待。