alomst 和nearly的区别是什么?

almost（adv．）“几乎、差不多”,常与nearly（将近、几乎）通用,可以互换的场合有三个：
（1）在肯定句中.
She is almost／nearly 90years old．她差不多九十岁了.
He fell off a tree and almost／nearly died．他从树上摔下来,险些丧命.
（2）修饰all,every,always等时.
I almost ／nearly always go to bed at eleven．我几乎总是十一点钟去睡觉.
（3）在行为动词的否定式前.
He almost ／nearly didn't hear what I said．他几乎未听见我讲了些什么.
只能用almost的情况：
（1）修饰no,none,never,any以及和any构成的合成词.
I have almost nothing to do today．今天我几乎没什么事可做.
This word is to be found in almost any dictionary．这个词几乎在任何一本词典里都能查到.
注：almost与否定词连用时,可与hardly,scarcely（any）换用,但谓语动词必须是行为动词.
（2）修饰表示感觉或心理活动的动词和形容词.
I almost think you're right．我还不完全相信你是对的.
（3）修饰more than和too.
That's almost too much．那简直太过分了.
只能用nearly的情况：
（1）被very,not,pretty所修饰时.如：
I'm not nearly ready．我还没有准备好.
I know pretty nearly all the secrets of her married life．她的婚姻生活的秘密我几乎全部知道.
注：not nearly ＝far from差得远、远远不够.如：
There's not nearly enough money for a new car．买一部新车的钱还差得远呢!
表示“几乎不……”只能用hardly,不能用nearly／not,也不能用 almost not.如可说：She sang so quietly that I could hardly hearrer．不可说：She sang so quietly that I almost couldn't hear her．可说：That is hardly possible．不可说：That is nearly not possible．
（2）表示快要做什么事但后来“没有做”或“避开不做”时.如：
We nearly called to see you last Sunday．我们上星期天差点来看你.

alomst形容词nearly是副词