摘要
大家都知道，风是空气流动的结果。那么是什么引起了空气的流动呢7地球上大气受热不均引起了空气的流动。太阳辐射使地面受热，大气也随之受热。地球上的一些地区整年受到阳光直接照射，一直都很温暧。另外一些地区不受阳光直接照射，因此气候比较寒冷。暖空气比冷空气轻，所以会上升。然后冷空气就运动到已经上升的暧空气的位置。空气的这种流动就形成了风。
You know that wind is moving air. But what causes the air to move？ It＇s the uneven heating of the earth＇s aimosphcre As the sun warms the earth＇s surface, the atmosphere warms too. Some parts of the earth receive d rays from the sun all year and are always warm. Other places receive indirect rays, so the climate is colder. Warm air, which weighs less than cool air, rises. Then cool air moves in and ） the rising warm air. This movrncni of air is what makes the wind blow.
出处
《双语阅读》
2013年第2期10-10,共1页
SHUANG YU XUE XI
