1.except prep. (常与for连用)除…以外
all the questions except for the last one. 除最后一道题之外的所有问题。
2.except for 除…以外
Except a broken chair, the room has no furniture.除了一把破椅子,房间里没有家具。
3.apart from 除…以外(=except)
Apart from the cost, the dress doesn’t suit me. 除价钱外,这件套装也不适合我。
besides, except:都含有“除…以外”的意思
besides指“除外,另外还有”,着重“另外还有”
except的含义是“从整体里减去一部分”,着重于“排除在外”