In that,now that, since, for, because and as表原因的区别
2011-11-21 14:22阅读：
In that,now that, since, for, because and
as表原因的区别
1. since（既然）语气较弱，强调已知的事实。例：
Since you can't answer the question, I'll ask someone else.既然你回答不出这个问题，我就问别人了。
Since you're not interested, I won't tell you about it.既然你不感兴趣，那我就不告诉你了。
Since it stops raining, let’s go out to continue the work.
2.
for是并列连词，表示推断的原因，或对前一分句补充说明理由。例：
It must be morning for the birds are singing.一定是清晨了，因为鸟儿在叫。
He felt no fear, for he was very brave.他很勇敢, 毫不畏惧。
3.
because通常表示直接的原因。because引导的从句表示直接而明确的原因和理由，表示
1. since（既然）语气较弱，强调已知的事实。例：
Since you can't answer the question, I'll ask someone else.既然你回答不出这个问题，我就问别人了。
Since you're not interested, I won't tell you about it.既然你不感兴趣，那我就不告诉你了。
Since it stops raining, let’s go out to continue the work.
2.
for是并列连词，表示推断的原因，或对前一分句补充说明理由。例：
It must be morning for the birds are singing.一定是清晨了，因为鸟儿在叫。
He felt no fear, for he was very brave.他很勇敢, 毫不畏惧。
3.
because通常表示直接的原因。because引导的从句表示直接而明确的原因和理由，表示