Has he finished the work yet?的yet能不用吗为什么要加一个yet呢?这个yet去掉可以吗

Has he finished the work yet?的yet能不用吗为什么要加一个yet呢?这个yet去掉可以吗
Has he finished the work yet?的yet能不用吗
为什么要加一个yet呢?这个yet去掉可以吗

Has he finished the work yet?的yet能不用吗为什么要加一个yet呢?这个yet去掉可以吗
可以去掉
在现在完成时的句子中,already常用于肯定句,yet常用于否定句和疑问句,但yet还有其他用法.
1.用于否定句中,意思是还、尚、迄今、到那时”.例如 he is not yet here.他还未到.at three o”clock they had not yet decided whether to play basketball or not.三点钟时他们尚未决定是否去打篮球.
2.用于疑问句中,意思是已经”.例如 is everything ready yet 一切都准备好了吗?
3.与比较级连用,意思是更”.例如 you must work yet harder.你还需更努力地工作.
4.与once ,again ,another 连用,意思是再”.例如 he has made yet another mistake.他又犯了一个错误.
5.用于肯定句中,意思是仍然、还得”.例如 she is yet a child.她还是个孩子.
6.用作并列连词时,意思是然而、可是”.例如 he studied hard yet he failed.他学习努力,可是考试仍未及格.

可以去掉，yet表示已经,用于否定句和疑问句，肯定句用already.

yet此处表强调此时，也可以去掉。

完全可以去掉，它只是表一种语气