in place of/in the place of

in place of 是指“代替”，而 in the place of 是指“在……位置上”“在……地方”。请对比下列句子：

1. It is generally agreed that we may use this substance in place of soap. 一般认为,可以用这种物质来代替肥皂。

2. A new hospital is set up in the place of the old one. 在医院的旧址上建起了一所新医院。

3. In place of the great trees which had been growing there for centuries, patches of green had begun to appear in the blackened soil. (New Concept English, Book 2, L.62) 大片大片的绿草开始出现在发黑的土地上，代替了在那儿已经生长了许多世纪的参天大树。