有一读者说有这样一句话：
(1)Moshood Abiola, Nigeria's opposition leader declared wanted by the police, was arrested early yesterday morning in his residence here after addressing a rally of his supporters.
请问如何分析句中的Nigeria's opposition leader declared wanted by the police?
Nigera's opposition leader是一同位语，它与其前的Moshood Abiola同位。其后的declared wanted by the police是一过去分词短语，用作定语，修饰Nigeria's opposition leader。这一短语中的wanted也是一个过去分词，意谓“被通缉的”，在此用作其逻辑主语Nigeria's opposition leader的补足语，语法上唤作主语补足语。
如对此一分词短语的上述分析可能还不甚了了，那就最好将此一分词短语扩充为一定语从句如下：
(2)who was declared wanted by the police
这样一扩充，你就可比较清楚地看出wanted是从句主语who的补足语了吧。
如果还不清楚，那就试将被动结构who was declared wanted by the police变为主动结构如下：
(3)whom the police declared wanted
即可看出wanted是从句中宾语whom的补足语，即所谓宾语补足语。主动结构中的宾语补足语，在被动结构中，不就变成主语补足语了吗？
如果你仍然有点困惑，那就在于你对“declare + 名（代）词 + 过去分词”这一结构不很熟悉了。这种结构在英语中并不罕见。现将其主动结构举二三例如下：
(4)I declare the meeting closed.
(5)They declared themselves completely puzzled by the lack of evidence.
这两个句子皆可适当变为被动语态。此外再如：
(6)She was declared elected to the committee.
顺便提之,“declare + 名（代）词”之后还可以用名词、形容词等。主动结构如：
(7)They declared him king.
(8)She declared herself innocent.
被动结构如：
(9)He was declared king.
(10)At the trial she was declared innocent.
