Be careful ... "EXPECT" means 期待, EXCEPT means 除了之外.那时有人看他们认为它们是同一词,但它们有很多区别. (如果我的中文有错,please correct me ;)
Some examples:
I like to dance except when I am tired.
I like to dance but only when I'm not tired.
Everybody in my class except Mary likes to dance.
Everybody in my class but Mary likes to dance.