在晚上当天空晴朗万里无云时，强烈的地面辐射冷却经常影响到近地层空气也引起强烈辐射冷却，当低层空气中水汽比较充沛时，由于冷却作用地面或近地层空气经常生成雾或层云。早晨，太阳从东方逐渐升起，阳光把地面烘热，也使近地层空气温度逐渐上升，于是原来形成的雾滴、云滴的小水滴又重新被蒸发而成水汽。
雾、层云就慢慢地被抬升而变成碎层云，这种碎层云由于高度低看上去移动就显得比较快，造成早上“浮云走”的情景。这种碎层云由于是雾或层云抬升过程中变成的，因而随着太阳高度角的升高，气温进一步增暖，雾滴、云滴也进一步消散。碎层云也就消散了。
由于形成这种现象的天气系统一般是在高压区内单一气团控制下的天气，所以一般说来总是晴好的。
Faults are thick where love is thin.一朝情意淡，样样不顺眼。Fear always springs from ignorance.恐惧源於无知。Fields have eyes, and woods ha
1、A merry heart goes all the way.心情愉快，办事痛快。2、An honest man’s word is as good as his bond.君子一言，驷马难追。3、All roads lead to R
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