【简明语法】19.3 原因状语从句
时间：2019-01-14 作者：英语课 分类：英文语法词汇
英语课
比较：because, since, as和for
1） because语势最强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或 since。
I didn't go, because I was afraid.
Since /As the weather is so bad, we have to delay 1 our journey.
2） 由because引导的从句如果放在句末，且前面有逗 号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。
He is absent today, because / for he is ill.
He must be ill, for he is absent today.
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delay
v./ n.拖延，延误，延迟，延期；耽搁
参考例句：
The strike caused a great delay in the delivery of the mail.这次罢工严重地延误了邮件的投递。
I couldn't judge whether the delay was good or bad.我不能断定这样延迟是好还是坏。