1、for，作为介词，意思是：为了、对于。
2、例句My father would do anything for me and my mother,because he loves his family.我的父亲会为我和我的母亲做一切，因为他爱他的家庭。
3、for，作为连词，意思为：因为。
4、用for替换了because，则例句变为My father would do anything for me and my mother,for he loves his family.
5、例句I didn't eat much lunch for I'm not hungry at all.我没有怎么吃午餐，因为我一点也不饿。
