yet
单词辨析：
指原有的状况仍未改变，或某种情形仍在继续，可用于肯定句、否定句及疑问句中。
The snake is still alive.
这条蛇还活着。
The gun was still in his hand, the horse still beside him.
枪还在他手中，马也还在他身边。
Do you still have Beck's phone number?
你还留着贝克的电话号码吗？
指某事尚未发生或完成，或某种情形尚未出现，也可用于询问某事是否已经发生，多用于否定句和疑问句中。
The task is not yet finished.
任务尚未完成。
Have the kids come home yet?
孩子们已经回家了吗?
His future has not yet been determined, but he may study science.
他的未来尚未确定，不过他可能会学理科。
相关例句：
As yet it is not known whether the crash was the result of an accident
目前尚不清楚撞车是否是由事故引起的。
'Has the murderer been caught?' — 'Not yet.'
“抓住凶手了吗？”——“还没有。”
It is plain to see we will not have anything to eat yet again.
很明显我们又将没有任何东西可吃了。
The hostages cannot go home just yet
人质目前还不能回家。
They were terrified James would die — yet there were moments when they almost wished he would
他们很害怕詹姆斯会死——然而，有那么几个瞬间，他们几乎是希望他会死。
I saw yet another doctor
我又看了一个医生。