from有哪些用法

　　1.從...起,始于 eg:She is singing from morning to night.她從早唱到晚.

　　2.從;由

　　eg:He rose from office boy to managing director in fifteen years.

　　他十五年里從辦公室勤雜員升到總經(jīng)理.

　　3.離(開) eg:Our school is two miles from the station.我們學(xué)校離車站兩英里.

　　4.從...來;出自 eg:He comes from Shanghai.他來自上海.

　　5.(表示去除、免掉、阻止、剝奪等) eg:The pill will relieve you from pain.這藥丸將使你免受痛苦.

　　6.(表示區(qū)別、比較) eg:He is old enough to know right from wrong.他已長大,能夠辨別是非了.

　　7.(表示原料)由 eg:Flour is made from wheat.面粉由小麥制成.

　　8.因?yàn)?由于;出于

　　eg:He wasn't ill; he stayed in bed from laziness.他沒病,躺在床上是因懶惰之故.

　　eg:He is trembling from fear.他嚇得發(fā)抖.

　　8.across from.在...的對(duì)面

　　eg.The post office is just across from the club .郵局就在那俱樂部對(duì)面.