He is at desk .与The family are at table.这2句有语病么.动词后可以直接加介词?

问题描述:

He is at desk .与The family are at table.这2句有语病么.动词后可以直接加介词?

是正确的句子.
be动词后接介词短语,表示有关的动作,比如at table的意思就是“在吃饭”,at desk可解释为“在工作”.