Because和because of的区别：中文含义不同、词性不同、用法不同。Because作为连词，基本含义为“由于”、“因为”，用来连接原因状语从句，所引导的从句除用作原因状语外，还可用作表语；because of是介词短语，含义为“因为某人/某物”，其后接名词、代词、动名词、what 从句等。
一、Because的中文含义及用法介绍
Because作为连词，意为因为。
例句：He is called Mitch, because his name is Mitchell...
人们叫他米奇，因为他大名叫米切尔。
Many families break up because of a lack of money...
许多家庭由于缺钱而破裂。
Just because it has a good tune does not mean it is great music...
仅凭旋律优美并不见得就是一首杰出的音乐作品。
We couldn't understand them because they were talking in Chinese.
我们听不懂他们在讲些什么，因为他们说的是汉语。
Why get upset just because you got one bad grade?
何必因为一次成绩不好就想不开呢？
She found it difficult to make friends because of her natural reserve.
她因天性矜持很难交到朋友。
The party went well because everyone entered into the spirit of things.
晚会很成功，因为每个人都很投入。
Some families go without medical treatment because of their inability to pay.
有些家庭因无力支付医疗费用而得不到医治。
No new power stations have been built, principally because of the cost.
没有新建的发电站，主要是因为经费问题。
Just because I don't complain, people think I'm satisfied.
就因为我不发牢骚，大家便以为我满意了。
二、because of的基本含义及用法介绍
because of是介词短语，意思是“因为(某人/某事物)；由于”其后接名词、代词、动名词、what 从句等。所引导的介词短语通常用作状语而不用作表语。
例句：We have had to raise our prices because of rising costs.
因为成本日益上涨，我们不得不提高价格。
No payments were made last week because of a computer error.
由于计算机出错，上周未付任何款项。
Because of his wife being there, I said nothing about it.
他的妻子在场，我便没提及这事。
Some families go without medical treatment because of their inability to pay.
有些家庭因无力支付医疗费用而得不到医治。
No new power stations have been built, principally because of the cost.
没有新建的发电站，主要是因为经费问题。
She was unable to attend because of the pressures of work.
由于工作紧张她不能出席。
Bus services will be disrupted tomorrow because of the bridge closure.
明日公共汽车将因大桥停止通行而受影响。
