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How Earth’s Magnetic Field Shields Us From Solar Storms
地球磁场如何保护我们免受太阳风暴侵袭?
精读先不看文字,完整听一遍。
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Earth’s core generates a powerful magnetic field that extends far into space like an invisible shield.地球核心产生强大的磁场,像一道无形的盾牌,延伸至遥远的太空。
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When charged particles from solar flares approach Earth, this field deflects most of them sideways.当太阳耀斑喷发的带电粒子接近地球时,该磁场会将大部分粒子偏转至侧面。
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Some particles do get trapped along magnetic field lines near the poles, causing auroras.部分粒子沿磁力线被束缚在两极附近,形成极光。
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Without this magnetic protection, solar radiation would gradually strip away our atmosphere.若无此磁场保护,太阳辐射将逐渐剥离我们的大气层。
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Mars lost much of its atmosphere after its magnetic field weakened billions of years ago.数十亿年前火星磁场减弱后,其大气层大量流失。
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Satellites monitor solar wind speed and magnetic orientation to warn us of incoming storms.卫星监测太阳风速度与磁场方向,以预警即将来临的太阳风暴。
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Strong solar storms can still disrupt power grids and GPS systems despite the field’s defense.即便有磁场防护,强烈的太阳风暴仍可能干扰电网和GPS系统。
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The magnetosphere compresses on the sun-facing side and stretches into a long tail on the night side.磁层在朝向太阳一侧被压缩,在背阳一侧则延展为长长的磁尾。
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This dynamic shape helps absorb and redirect energy from solar eruptions continuously.这种动态形状持续吸收并重定向太阳爆发的能量。
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Life on Earth’s surface remains safe because the field blocks over 99% of harmful cosmic particles.地球表面的生命得以安全,是因为该磁场阻隔了99%以上的有害宇宙粒子。
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
- Without this magnetic protection, solar radiation would gradually strip away our atmosphere. 若无此磁场保护,太阳辐射将逐渐剥离我们的大气层。
- This dynamic shape helps absorb and redirect energy from solar eruptions continuously. 这种动态形状持续吸收并重定向太阳爆发的能量。
- Some particles do get trapped along magnetic field lines near the poles, causing auroras. 部分粒子沿磁力线被束缚在两极附近,形成极光。
④ 懂 · 选一选
⑤ 今天会说这一句
Without this magnetic protection, solar radiation would gradually strip away our atmosphere.
⑥ 跟读并录音
Without this magnetic protection, solar radiation would gradually strip away our atmosphere.
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:Without this magnetic protection, solar radiation would gradually strip away our atmosphere.
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。