330 for because

 

这两个词的意思很相近,通常是可以互换使用的。为了安全起见,最好用because引导从句,因为同because引导的从句相比,for引导的从句(英文中称为forclause)的用法要受到某些限制:

1 for引导的从句不能位于它所解释的动词之前:

Because it was wet he took a taxi

因为下雨,他叫了一辆出租车。(这里不能用 for。)

2 for引导的从句不能位于notbut或任何连词之后:

He stolenot because he wanted the money but because he liked stealing

他偷东西,并不是因为他想要钱,而是他有这种毛病。(这里不能用for。)

3 for引导的从句不能用于回答问题:

Why did you do it

I did it because I was angry

―你为什么这么做?

―因为我生气才这么做的。(这里不能用for。)

4 for引导的从句不能单单用来复述已讲过的话,而必须包括新的内容:

He spoke in FrenchShe was angry because he had spoken in French

他讲法语。因为他讲法语,她生气了。(这里不能用for。)

但是说:

She was angryfor she didnt know French

她生气了,因为她不懂法语。(这里用for是正确的,也可用because。)之所以有这些用法上的限定,其理由是for引导的从句不能直

接说明某一特定动作发生的原因,而只能提供一些起帮助解释作用的附加说明。

例句如:

The days were shortfor it was now December

天短了,现在已是12月了。

He took the food eagerlyfor he has eaten nothing since dawn

他狼吞虎咽地吃了起来,因为他从天亮就没吃过东西。

When I saw her in the river I was frightenedFor at that point thecurrents were dangerous

我看见她在河里时,吓坏了。那个地方水流非常危险。

在口语中,for从句前常稍停一下。在笔语中,在此处常有一个逗号。有时也用一个句号断开,如最后一个例子所示。上面三个例句中也可用because,但用for更好些。