Except for / But for the storm we should have arrived earlier.
except 指从整体中除去一部分，而besides则表示“除……之外还有……”的意义。
Nobody was late except me.
He had few friends besides us.
表示超过或不足的介词有：above， beyond， over， past; below， beneath， under等，如：
beyond description 难以形容
below / under the average 低于平均水平
表示状态的介词有：at， off， in， under， out of等，如：
on fire 着火
off duty 下班
out of fashion 过时
表示支持的with， for和表示反对的against.
I‘m with you in all you say.
Are you for or against the plan？