请教以下3句属于S+V+O, 还是S+V(+adverbial)?
1. He is looking at the blackboard.
2. Jim often listens to music.
3. They come from the US.
1. He is looking at the blackboard. (S+V+O)( is looking at是V)
2. Jim often listens to music.(S+V+O)( listens to是V)
3. They come from the US.(S+V+adverbial)
这三句都是属于S+V+O。因为这三句的动词都是不及物动词且后面都跟介词,所以必须加宾语。