科学为什么·英语30篇（1）

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为什么山脉对天气模式影响这么大？

Mountains act like giant barriers to wind, forcing moist air to rise, cool, and release rain or snow on the windward side.
This process—called orographic lift—creates wet climates on mountain fronts and dry ‘rain shadows’ on leeward slopes.
The Sierra Nevada, for example, drops Pacific moisture onto California’s west side, leaving Nevada deserts parched.
Cold air draining down valleys at night forms mountain breezes, while warm air rising during the day creates valley breezes.
High peaks also disturb jet streams, steering storm tracks north or south and altering regional rainfall for weeks.
Glaciers on tall mountains store freshwater that feeds rivers year-round—critical for billions downstream.
Climate change accelerates glacier melt, threatening both water security and landslide risks as frozen slopes destabilize.
Meteorologists use digital elevation models to simulate how terrain reshapes airflow—and improve local forecasts.

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

Glaciers on tall mountains store freshwater that feeds rivers year-round—critical for billions downstream. 高山冰川储存淡水，全年补给河流，惠及下游数十亿人。
Meteorologists use digital elevation models to simulate how terrain reshapes airflow—and improve local forecasts. 气象学家利用数字高程模型模拟地形对气流的重塑作用，以提升局地天气预报精度。
This process—called orographic lift—creates wet climates on mountain fronts and dry ‘rain shadows’ on leeward slopes. 这一过程称为地形抬升，使山麓迎风面气候湿润，背风坡则形成干燥的‘雨影区’。

这篇中文题目最接近哪一句？为什么山脉对天气模式影响这么大？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？山脉如同巨大的风障，迫使湿润空气抬升、冷却，并在迎风坡形成降雨或降雪。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） Why Do Mountains Affect Weather Patterns So Strongly? How to cook noodles A maths worksheet

Glaciers on tall mountains store freshwater that feeds rivers year-round—critical for billions downstream.

Glaciers on tall mountains store freshwater that feeds rivers year-round—critical for billions downstream.

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：Glaciers on tall mountains store freshwater that feeds rivers year-round—critical for billions downstream.