except for, 用于非同类事物,它的宾语与前述对象完全是两回事。
例如: The room was very cold and, except for Jack, entirely empty.
这个房间很阴冷,而且除了杰克,完全是空荡荡的。
except,指同一类事物的总体中除去一部分,强调的是除去。
例如:He gets up early every day except Sunday.
除星期天外,他每天早起。
有时except与except for可以换用,例如: Except for(=Except) John, the whole class passed the test. 全班同学除约翰外,全都通过了考试。
except that,表达的语意与except近似,只是后面要跟从句。
例: He has always been in good health except that he has had a slight headache in the past few days. 除了在过去几天里有些头痛之外,他身体一直很好。