With是个介词，基本的意思是“用”，在句子中起两种作用是作副词和形容词，下面就让我们具体来看一下：
一、with在下列结构中起副词作用
1.“with+宾语+现在分词或短语”
如：This article deals with common social ills, with particular attention being paid to vandalism.
2.“with+宾语+过去分词或短语”
如：With different techniques used, different results can be obtained.
3.“with+宾语+形容词或短语”
如： With so much water vapour present in the room, some iron-made utensils have become rusty easily.
4.“with+宾语+介词短语”
如：With the school badge on his shirt, he looks all the more serious.
5.“with+宾语+副词虚词”
如：You cannot leave the machine there with electric power on.
上面五种“with”结构的副词功能，相当普遍，尤其是在科技英语中。
二、“with”结构的形容词功能
1.“with+宾语+现在分词或短语”
如：The body with a constant force acting on it. moves at constant pace.
2.“with+宾语+过去分词或短语”
如：Throw away the container with its cover sealed.
3.“with+宾语+形容词或短语”
如：Put the documents in the filing container with all the drawers open.
4.“with+宾语+介词短语”
如：The young lady with a red ribbon on her head is my former maths teacher.
5.“with+宾语+副词虚词，”
如：Is there any water in the kettle with this cover off ?
