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The Sun Hits the Equator Straight On
阳光直射赤道，所以更热
精读先不看文字，完整听一遍。
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Near the equator, sunlight strikes Earth almost straight down all year.赤道附近全年阳光几乎垂直照射地球。
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This direct angle heats the surface more than slanted light does elsewhere.这种直射角度比其他地区斜射的阳光更能加热地表。
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Places farther north or south get sunlight at a lower angle in winter.纬度更高的南北地区冬季阳光入射角更低。
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That spreading effect makes each ray deliver less warmth per square meter.这种散射效应使每束阳光单位面积传递的热量减少。
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The equator also has nearly equal day and night lengths every day.赤道地区每天昼夜长度几乎相等。
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No long winters mean no time for heat to escape into space.没有漫长的冬季，热量便无从大量散逸到太空。
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Warm air rises there and moves toward the poles slowly over weeks.暖空气在此上升，并在数周内缓慢向两极移动。
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Ocean currents near the equator also hold and move huge amounts of heat.赤道附近的洋流也储存并输送巨量热量。
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That’s why tropical countries rarely see frost or snow even at night.因此热带国家即使夜间也极少出现霜或雪。
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You can feel this difference just by comparing Singapore and London in January.仅对比一月的新加坡与伦敦，你就能感受到这种差异。
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
- Near the equator, sunlight strikes Earth almost straight down all year. 赤道附近全年阳光几乎垂直照射地球。
- This direct angle heats the surface more than slanted light does elsewhere. 这种直射角度比其他地区斜射的阳光更能加热地表。
- That spreading effect makes each ray deliver less warmth per square meter. 这种散射效应使每束阳光单位面积传递的热量减少。
④ 懂 · 选一选
⑤ 今天会说这一句
Near the equator, sunlight strikes Earth almost straight down all year.
⑥ 跟读并录音
Near the equator, sunlight strikes Earth almost straight down all year.
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：Near the equator, sunlight strikes Earth almost straight down all year.
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。