自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
ADV （用于否定句中表示某事尚未发生但有可能发生，在疑问句中用来询问某事是否已发生。英国英语中，表示此义时通常不与一般过去时连用）尚（未），还，仍 You use yet in negative statements to indicate that something has not happened up to the present time, although it probably will happen. You can also use yet in questions to ask if something has happened up to the present time. In British English the simple past tense is not normally used with this meaning of 'yet'.
They haven't finished yet...
No decision has yet been made...
ADV （与谈论过去的否定句连用，表示当时并非如此）还，尚（未） You use yet with a negative statement when you are talking about the past, to report something that was not the case then, although it became the case later.
There was so much that Sam didn't know yet...
He had asked around and learned that Billy was not yet here.
ADV （用于否定句，表示某事以后会做但现在不该或不能做）还，尚 If you say that something should not or cannot be done yet, you mean that it should not or cannot be done now, although it will have to be done at a later time.
Don't get up yet...
The hostages cannot go home just yet...
ADV （用于最高级后，表示到目前为止最差或最好）迄今为止，到目前为止 You use yet after a superlative to indicate, for example, that something is the worst or the best of its kind up to the present time.
This is the BBC's worst idea yet...
Her latest novel is her best yet.
ADV （用于表示仍有可能）还是，仍然 You can use yet to say that there is still a possibility that something will happen.
Like the best stories, this one may yet have a happy end...
A negotiated settlement might yet be possible.
ADV （用于表示一段时间的表达后，表示时间的延续）还要，还 You can use yet after expressions which refer to a period of time, when you want to say how much longer a situation will continue for.
Unemployment will go on rising for some time yet...
Nothing will happen for a few years yet...
ADV （表示从未做过某事，尤指惊人的事或坏事）还未，尚未 If you say that you have yet to do something, you mean that you have never done it, especially when this is surprising or bad.
She has yet to spend a Christmas with her husband...
He has been nominated three times for the Oscar but has yet to win.
CONJ-COORD （用于引出颇令人惊讶的事实）可是却，却又 You can use yet to introduce a fact which is rather surprising after the previous fact you have just mentioned.
I don't eat much, yet I am a size 16...
They were terrified James would die — yet there were moments when they almost wished he would...
ADV （用于强调，尤指相对于以前同类事物更为极端等）还要，甚至，更 You can use yet to emphasize a word, especially when you are saying that something is surprising because it is more extreme than previous things of its kind, or a further case of them.
Yet bigger satellites will be sent up into orbit...
I saw yet another doctor...
PHRASE （用于否定句）迄今为止，目前为止 You use as yet with negative statements to describe a situation that has existed up until the present time.
As yet it is not known whether the crash was the result of an accident...
We have not as yet received a response.