輪船上有2000余人。

正：On the ship were more than 2000 people.

正：More than 2000 people were on the ship.

值得注意的是，以上這類倒裝句，還涉及主謂一致問題：

墻后是一些高樹子。

正：Behind the wall are some tall trees.

誤：Behind the wall is some tall trees.

老師四周圍著一些年輕的學(xué)生。

正：Around the teacher were some young students.

誤：Around the teacher was some young students.

這兩座山之間有一個(gè)小村莊。

正：Between the two hills was a small village.

誤：Between the two hills were a small village.

盒子里有一些小球。

正：In the box are some small balls.

誤：In the box is some small balls.

這類句子，有的考生之所出錯(cuò)，是因?yàn)樗麄儼丫涫椎慕樵~短語看作主語，從而把謂語與介詞短語中的名詞保持一致。

關(guān)于這個(gè)問題，有個(gè)比較簡單的方法可以判定：即在英語中介詞短語通常不能作主語，假若一個(gè)句子的主語位置是一個(gè)介詞短語，考生應(yīng)考慮是否是一個(gè)倒裝句。