The adverb 几乎 "almost"
The adverb 几乎 is often used in the same way as the English word "almost".
The adverb 几乎 
is used in the following cases:
1) to emphasize the amount or degree of something.
is used in the following cases:
1) to emphasize the amount or degree of something.
Pay attention
In this case, the speaker needs to indicate that a number or a degree is high.
It is placed before a predicate. 几乎 is often followed by words meaning "every", "all" and "whole".
For example, 全 , 都 , 每 .
, 都 , 每 .Examples
她太饿了，几乎吃了五碗饭
She was so hungry that she almost ate five bowls of rice
tā tài è le, jīhū chī le wǔ wǎn fàn
这本书我几乎完全看不懂
I can barely understand this book
zhè běn shū wǒ jīhū wánquán kànbudǒng
她婚姻生活的秘密我几乎全知道
I know almost all the secrets of her married life
tā hūnyīn shēnghuó de mìmì wǒ jīhū quán zhīdào
2) to emphasize that someone or something almost meets a certain standard or is close to doing something.
Examples
听到这个消息，他高兴得几乎跳了起来
He almost jumped for with joy when he heard the news
tīng dào zhè ge xiāoxi, tā gāoxìng de jīhū tiào le qǐlái
这个运动员的表现几乎完美，但是分数很低
The athlete's performance was almost perfect, but the score was very low
zhège yùndòngyuán de biǎoxiàn jīhū wánměi, dànshì fēnshù hěn dī
3) to express "almost not", "hardly", "almost nobody". In this case, 几乎 is followed by the negative adverbs 不 and 没 .
and 没 .Examples
我老板几乎不喝酒
My boss rarely drinks
wǒ lǎobǎn jīhū bù hē jiǔ
几乎没有证据来支持他乐观的设想
There is little evidence to support his optimistic assumptions
jīhū méi yǒu zhèngjù lái zhīchí tā lèguān de shèxiǎng
几乎没有人相信他
Almost no one believes him
jīhū méi yǒu rén xiāngxìn tā