因为的英语:because;for;on account of;since

because:

发音:英 [bɪˈkɒz]  美 [biˈkɔz] 
意思:conj. 因为
例句:because of sth/sb:因为某事物/某人

because of the weather 由于天气的缘故

It's all because of him! 这全都是因为他!

all because of sb/sth 都是因为某人/某事物的缘故


for:

发音:英 [fɔː]  美 [fɔr] 
意思:conj. 因为;由于 prep. 为,为了;因为;给;对于;关于;当作
例句:
He would do nothing, for he knew there was nothing whatever he could do. 
他什么事也不打算做,因为他明白没有他能做的事。

He had a great desire to have a home of his own, for he had always lived with my grandmother. 
他强烈渴望拥有一个自己的家,因为他一直和我祖母住在一起。


on account of:

发音:英 [ɒn əˈkaʊnt əv]  美 [ɑn əˈkaʊnt ʌv] 
意思:phr. 由于;因为;为了
例句:
The meeting was postponed on account of the chairman's illness. 
由于主持人生病,会议延期了。

On account of his extravagance he was plunged into heavy debt. 
由于挥霍浪费,他负债累累


since:

发音:英 [sɪns]  美 [sɪns] 
意思:conj. 从...以后;自...以来;由于;既然  adv. 此后;后来  prep. 自...以后;从...以来
例句:
We thought that, we'd stop by and see them since we were in the area.
我们想,我们就该顺便去看看他们,因为已经到了这个地方,。