Out came a shout for help from the room.
Away went the children.
副词位于句首时,后面跟动词+ 主语,为倒装语序.
常见的副词有：in,out ,up ,down ,round ,over ,back ,forward
例如：In came Tom.Tom 进来了.
Up jumps two big dogs.跳上来两只大狗.
但主语为代词时不需要倒装,例如：In he came.他进来了.
Back he went again.他又回去了.