世界地理与人文·英语30篇（2）

11 / 30

已读 0 / 30 课

北极海冰：气候的镜子

Sea ice reflects 80% of sunlight, helping cool the planet—open water absorbs 90% instead.
Summer ice extent has shrunk by nearly 13% per decade since satellite monitoring began in 1979.
Polar bears rely on ice platforms to hunt seals; longer ice-free periods reduce their hunting success.
Thawing permafrost releases methane, a greenhouse gas 25 times more potent than CO₂ over 100 years.
Indigenous hunters report thinner ice, unpredictable break-up dates, and new open-water routes.
Cargo ships now traverse the Northern Sea Route in summer, cutting travel time but raising spill risks.
Scientists drill ice cores to analyze trapped air bubbles, revealing atmospheric composition over 800,000 years.
International agreements regulate shipping emissions and protect marine mammals in newly accessible waters.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

Indigenous hunters report thinner ice, unpredictable break-up dates, and new open-water routes. 原住民猎人报告冰层变薄、解冻时间难以预测，以及出现新的无冰航道。
International agreements regulate shipping emissions and protect marine mammals in newly accessible waters. 国际协议规范新开放海域的航运排放，并保护海洋哺乳动物。
Sea ice reflects 80% of sunlight, helping cool the planet—open water absorbs 90% instead. 海冰能反射80%的阳光，有助于为地球降温；而开阔水域则吸收90%。

这篇中文题目最接近哪一句？北极海冰：气候的镜子一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？海冰能反射80%的阳光，有助于为地球降温；而开阔水域则吸收90%。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） Arctic Sea Ice: A Climate Mirror How to cook noodles A maths worksheet

Indigenous hunters report thinner ice, unpredictable break-up dates, and new open-water routes.

Indigenous hunters report thinner ice, unpredictable break-up dates, and new open-water routes.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：Indigenous hunters report thinner ice, unpredictable break-up dates, and new open-water routes.