欢快的下课铃声响了,我穿上棉衣,戴好手套,兴奋地准备下楼去操场和孩子们滑雪、堆雪人、打雪仗。由于全球气候变暖,如今北国冬天的雪花总是姗姗来迟或直接爽约,去年冬天就没下一场雪,今年,都到冬至了才来了这第一场雪。久违的雪花怎么不令人兴奋?更让人兴奋不已的是早晨才开始下的大雪,一个多小时就近半尺厚了,正好可以堆雪人、打雪仗。这时,急促的校园广播响起,校长亲自发出紧急 Cheerful get out of class bell rang, I put on cotton, wear gloves, excitedly ready to go down to the playground and the children skiing, snowmen, snowball fight. Due to the global warming, the winter snow in northern China is always late or direct late, no snow last winter, this year, until the winter solstice came to this first snow. How long is not exciting snow? Even more exciting is the heavy snow began in the morning, more than an hour to nearly half a foot thick, just can snowmen, snowball fight. At this time, the rapid campus radio sounded, the principal personally issued an emergency