with与for， 都可以表原因， 但它们的区别在哪？

with与for表原因时，只有一个区别，就是侧重点不同：

1、For：表示推断的原因，或解释说明，只能放句末。

例句：He must be at home, for it is raining.

翻译：他一定在家，因为下雨呢。 下雨不是必须在家的原因，却是推测的依据。

2、With：表示伴随的原因，强调伴随的动作。

例句：John was in bed with high fever .

翻译：约翰因发烧卧床。

扩展资料

其他表原因的介词

1、Because：侧重原因

例句：She spoke quietly because she did not want to wake up the baby.

翻译：她小声得说话，因为不想吵醒孩子。

2、As：侧重结果，由于听者所知道的原因

例句：Don’t tell me bad things in the morning as it sets the mood for the rest of the day.

翻译：大早晨的，别告诉我坏事，因为早晨的心情决定了一整天的心情。

3、Since：侧重结果，通as，比as更正式，与其也更强。

例句：They are expensive, since their quantity is small.

翻译：物依稀为贵。

For 有两种意思："为了..." 和 "因为..." ,　一个加名词 一个加动词

for表原因,后面跟名词（名词词组）
The match is cancelled for the heavy rain.
for表原因,后面跟句子.（for前面一定要加逗号,这里的for=because,只是因果语气稍弱）
I love him, for he loves me so deeply.

With 主要强调伴随。。。(with @@ = 和@@ 一起/ 附带@@)
John was in bed with high fever .约翰因发烧卧床.
He jumped up with joy .他因高兴跳起来.
Father is often excited with wine .父亲常因白酒变的兴奋.

例如：下面这句话为什么用with不用for:
The reason why she had not stopped at the
red light was most probably that her eyes had become weak (with)old age.
分析：
with是介词；而for表示“原因”时,通常用作连词,后接从句.
例如：We can't go for it is raining.我们不能走,因为正在下雨.

with后面多用名词 for可用于从句