有一读者问： 我看到这样一句话：
(1)I'm glad to be out of that taxi alive.
alive 在此充当何种成分？是状语吗？常见吗？
alive 是一形容词，在此用作主语 I 的补足语。形容词用作主语补足语的情况是比较常见的，再如：
(2)More than forty people were burned alive in the late fire.
(3)He lay there content and very comfortable .
(4)The moon rose red .
(5)She gazed at him speechless for a momemt.
(6)Life seemed to be opening before him so rich and full .
但 alive 与一般形容词不同，它在语法上唤作表语形容词，只可用作表语、后置定语、主语补足语和宾语补足语。
