already

补充

如She's back already.(她已经回来了),改为疑问句或否定句时则用yet:

Is she back yet?

(她回来了吗?)

如用already则有惊讶、意外之意,表示早已[这么早已经]

(=thus early)

:

Is she back already?

(她这么早就回来了?)

用法

(1)yet adv. 释义1, 尤其在if等所引导的条件子句中,仅用于否定:

if he hasn't arrived there yet

(如果他还没有到达那里的话)

但already则肯定和否定均可使用:

if he has [hasn't] arrived there already

(如果他已经到达那里的话[还没有到达那里的话])

用于否决句的already有时特别表示

「以为早已到达,却…」之意。

(2)i)adv. 释义2用法之疑问句中,如果使

用already则表惊讶或怀疑:

Has he returned already?

(他已经回到原处了?)(真难以相信)

ii)adv. 释义2用法中,如果不用动词现在完成式,而用简单过去式,像

Didn't you learn yet that ...?

Did he return yet?

之类并非标准用法。

(3)yet adv. 释义3之用法限于肯定句及条件子句,但无论如何,需与动词进行式或者本身表示持续的动词连用:

(if) she is playing the piano yet

=(if) she is still playing the piano

(如果)她还在弹钢琴(的话))。

但在此种情况下以使用still较为普通,

使用yet则带有感情的意味。

(4)conj. 用法之yet略与nevertheless同义,语气比but强而比still弱,有文言意味而语气强,常作and yet, but yet等;

【文】

则常与although, though配合使用:

Although I have known her only three years, yet she is my best friend.

(虽然我只认识她三年,但她是我最好的朋友。)