from和since的区别我想问的是from和since后加时间的区别,不要乱抄一段答案,譬如,from1990和since1990的区别

Question

from和since的区别
我想问的是from和since后加时间的区别,不要乱抄一段答案,
譬如,from 1990和since 1990的区别

Answer 1

since、for和from都含有“因为”的意思.
1）since+从句
例句：
He must have taken the book since it isn't here.
他一定是把书拿走了,因为书已不在这里了.
Since it is so hot,let's go swimming.
既然天气这么热,我们去游泳吧.
2）for+名词或动名词,多用于表示内在的、心理的原因.
例句：
I am sorry for what I said to you.我后悔不该对你讲那些话.
3）from+名词或动名词,表示自然的或直接的原因.
例句：
He wasn't ill; he stayed in bed from laziness.他没病,躺在床上是因懒惰之故.
He is trembling from fear.他吓得发抖.