1.with 复合结构，在句中表状态或说明背景情况 该结构常做伴随、方式、原因、条件等状语。
例句：1、With machinery to do all the work, they will soon have got in the crops.
例句：Anyone with its eyes in his head can see it’s exactly like a rope.
例句：He often sleeps with the windows open．他常开着窗睡觉。
例句：He stood before his teacher with his head down．他低着头站在老师面前。
例句：He died with his daughter yet a schoolgirl．他去世时，女儿还是个小学生。
例句：He was asleep with his head on his arms．他头枕着胳膊睡着了。
例句：He fell asleep with the lamp burning．他没熄灯就睡着了。
例句：All the afternoon he worked with the door locked．整个下午他都锁着门在房里工作。
例句：With so many people to help us， we are sure to finish it in time．有这么多人帮忙，我们一定能按时完成。