except不可以放在句首吗？

except不可以放在句首吗？

except可以放在句首。例句：
1. Except for the remarkably tidy kitchen, the place was a mess.
除了厨房特别干净外，这地方一片狼藉。
2. Except for her illnesses, she had had a particularly happy childhood.
除了体弱多病外，她的童年特别幸福。
except
[英][ɪkˈsept][美][ɪkˈsɛpt]
vt.把…除外; 不计;
prep.除…外;
conj.[口语]要不是; 除非; 除…以外;
vi.反对，表示异议（与 to 或 against连用）。

What I know is that, except or except for, whatever, they both can be put in front of a sentence, but except used in this words with the word, all in main clause, so except can't be exceptable. 根据上下文，应该选except，因为句中主句部分有all。