Question

off the bike fell the overjoyed boy

Answer 1

属于完全倒装.

地点状语至于句首,动词第二位,主语放最后

再如最简单的here comes the bus.

here is your dictionary.

In front of the computer,seated a boy who was playing video games.

但如果主语为代词.则不完全倒装.

如：Here you are.

其实there be 句型也符合此规则

there is an apple.