因为　for the reason that

　just ～　正因为
　merely ～　仅仅因为
　simply ～　完全因为

　I study because I want to learn.　我学习是因为我想学到知识。
　Just because they make more money than I do, they think they are so superior.　只因为他们挣钱比我多，他们就认为自己高人一等。
　Because the husband is vile—should the wife be vile too?　做丈夫的不正派，是不是做妻子的也应不正派呢?
　If you feel cold, it is because you didn't put on your overcoat.　如果你感到冷的话，那是因为你没有穿上外套。
　This is because the earth is travelling round the sun.　这是因为地球在围绕太阳运转。
　This is because the direct current flows in a wire always in one direction.　这是由于直流电在导线内总是沿着一个方向流动。
　The reason why he cannot come is because he is ill.　他不能来的理由是因为他病了。
　It is because he is honest that we like him.　是因为他诚实我们才喜欢他。
　I didn't go because I was afraid.　我没有去是因为怕。/我不是因为怕才去。
　I didn't go, because I was afraid.　我没有去是因为怕。
　Because I was ill, I didn't go to school yesterday.　因为病了，所以昨天我没有去上学。
　You shouldn't get angry just because some people speak ill of you.　你不要因为有人说你坏话而生气。
　Just because he seldom wrote you doesn't necessarily mean he loves you no longer.　仅仅是因为他很少给你写信这一点并不一定意味着他不再爱你了。
　The room was uncomfortable because too hot.　因为太热，这房间很不舒服。

 ♣ because of
　因为，由于　by reason of; as a result of
　〔说明〕 ①because of是复合介词，其后可接名词、代词、动名词或由what引导的从句（但不是直接接从句）。
　②because of一般引导状语，不引导表语；但当主语是代词时，because of短语在句中可用作表语。
　I came back because of the rain.　因为下雨，所以我回来了。
　It was because of the job that he had taken the flat.　他因为工作的原因租了那套公寓。
　She is here because of me.　她是因为我而到这里来的。
　I said nothing about it because of his wife's being there.　因为他妻子在那儿，我对此事只字未提。
　He knew she was crying because of what he had said.　他知道她哭是因为他说的话。
　It is just because of money.　那只是因为钱的原因。

 ♣ because, as, for, since
　参见as条。
 ♣ because of, due to
　这两个短语都可表示“因为”“由于”，其区别在于：because of主要引导状语，偶尔导表语；而due to则主要引导表语，偶尔引导状语。
 ♣ because of, for the sake of
　这两个短语的词义并不相同，because of指原因或理由，常译为“因为”;而for the sake of则指利益或目的，常译为“为了”。

　因为他病了，所以他没去上学。
　［误］ Because he was ill, so he didn't go to school.
　［正］ Because he was ill, he didn't go to school.
　［析］ 在英语中，如果原因状语从句用because引导，主句就不能用so；反之，主句用so，从句就不用because.

　［同义词］ as, for, since