英语短语如look after look for think about 如后面接代词该放中间还是后面?为什么?与put on有何区别?

look after 、look for 、think about 加后面,put on放中间.look after 、look for 、think about 中after、for、about是介词,后面要接名词；put on的on是副词,所以要放中间（就像可以说put on the coat和put the coat on）