as,for ,because都表示因为时,用法怎么区分
3个回答

ecause:因为.强调直接原因.

since:因为.强调双方已知无需用说明的事由.

for:因为.强调一种推测.但不一定是事实.

as:强调一般因果关系.用于句首.

Because she's ill,she can't go to my home.因为她病了,所以她没有来我家.

注:because后接句子,而because of后接短语.

Since everyboby is here,let's begin our meeting.

既然大家都到了,那就开始开会吧.

Day breaks,fro the birds are singing.

因为鸟儿在唱歌了,天可能亮了.

As he was not well,i decided to go without him.

由于他身体不太好,我决定不带他去.