already
1.already用在疑问句里往往有惊讶的意味。例如：Are you back already? Have you seen it yet? 是问是否已经见过，Have you seen it already? 是惊讶何以竟然已经见过。
2.already和all ready不可混用。例如：
- He is already there. （他已经在那儿了。）
- He is all ready there. （他在那儿完全准备好了。）
- He is already all ready there. （他已经在那儿完全准备好了。）
- They are all ready可能有两个意思。（参见 all 14）
