the teacher's desk lies in front of the blackboard.你写的属于完全倒装
附：
x05以here,there,now,then,in,out,up,down,away等副词、介词放在句首时应使用完全倒装,注意主语应是名词.
In 1939 came the Second World War.
Here are some advertisements about cars.
There goes the bell.
Away flew the bird.
Then came the results we long hoped for.
On the bed lay a young girl.
但主语是代词时,不能完全倒装.
Here you are.
Away they went.
主语是代词,谓语是系动词,表语是说明性的词、词组和定语从句时,可以使用完全倒装.
Lucky is he who have been enrolled by a famous university.
x05in front,in the distance,to the east of 等地点状语放在句首时应使用完全倒装.
in front of the blackboard lies the teacher's desk.
表语提到句首,采用完全倒装
“表语 + 系动词 + 主语”.（进行时态也可这样）.
Gone are the days when my heart was young and happy.
Hanging on the wall is Tom's Jacket.
Near the factory was a hospital..