1. because of：较口语化;凡是作状语，一般不作表语用;可接名词、代词、分词或what引导的名词性从句等。
Eg. Sampras is likely to miss the US Open because of his back injury.
Because of my bad leg ,I couldn’t walk so fast as the others.
Because of his wife’s being there,I said nothing about it.因为他老婆在场，我对此事只字未提。
He realized that she was crying because of what he had said.他意识到她在哭是因为他说的那些话。
Eg.Your failure is due to negligence.你的失败是由于疏忽所造成的。
A part of the energy is wasted in machines due to friction.
Accidents due to driving at high speed were very common that weekend.
Joe’s application to the University was not accepted due to his failing English.
Eg. Our grateful thanks are due to you.向你暗示我们衷心的感激
3.on account of：后头常接名词。
Eg. We delayed our departure on account of the bad weather.
I’m thinking of going down to Qingdao for a fortnight ,on account of my health.
留意：On my/your accoun 为了你(我)(的缘故)
On this/that account由于这个(谁人)缘故
Eg. She thinks you’re leaving Aunt Ketty on her account.她觉得你是为了她才规分别开凯蒂阿姨的。
On this account, we should be cautious.因为这个缘故我们应该审慎。
He is angry on that account.由于谁人缘故他生气了。
Eg. They decided to pospone the trip, owing to bad weather.由于天气欠好他们抉择推迟观光。
Owing to his careless driving, we had a bad accident.由于他驾驶疏忽，我们产生了次大车祸。
(Cf: The accident was due to his careless driving.这次车祸是由于他的驾驶疏忽。)
Eg. The play succeeded thanks to fine acting by all the cast.由于全体演员的精彩演出，那出戏才乐成。、
It was thanks to his carelessness that we lost the game.由于他的疏忽大意我们输掉了这场角逐。
Thanks to your help, we were successful.多亏了你的辅佐，我们得以乐成。
Thanks to the bad weather ,the match had been cancelled.
留意：Small thanks to 一点也不谢谢
Eg. We were successful ,but small thanks to you.
6.as a result :，常用在有上下文(表原因)的环境下。
as a result of…“由于…的功效”，可置于句首或句末。
Eg. He had some bad fish.As a result,he didn’t feel well this morning.
As a result of the flood,thousands of people lost their homes.