Irish weddings are almost certain to have been celebrated in this way.
I put my dream to the test.
I am content with the result.
Life is not easy for many stars.
从这类句子看，你主要想了解介词短语有哪些用途：红色部分都是做状语。状语成分假如细分会比较复杂，名字术语也繁多，通常语法书都不予细分。为了理解便捷，我暂时起个名字。由于笼统说它是状语，就没什么意义。不过，建议不要细分，了解意思会用就好。
1. Irish weddings are almost certain to have been celebrated in this way. （方法状语）
2. I put my dream to the test.（地址状语，只不过抽象而已。具体地址：I put my bag to the box.）
3. I am content with the result.（方面状语）
4. Life is not easy for many stars.（对象状语）
