答案解析

查看更多优质解析解答一举报表语（predicative)是用来说明主语的身份、特征和状态的.

它的位置在连系动词（be,

become,

appear,

look,

seem等）之后.

可用作表语的词有：He is careful.

(是形容词作表语,

千万别用副词carefully) He is a boy.

(名词) He.

.

.

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