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。
方法/步骤
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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.
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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?
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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.
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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.
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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.
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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.