题目

情态动词表推测与虚拟语气为什么总容易混淆?

提问时间：2021-03-01

答案

情态动词表推测时,就是虚拟语气的一种形式.
记住以下句型：
一、对现在的推测:
1.must be ＋名词/ 形容词/介词短语/副词(...一定是...)
He must be Tom.
He must be tired.
He must be at work.
He must be out .
2.must be doing(一定是正在做...)
He must be reading.他现在一定是在读书.
He must be sleeping.他现在一定是在睡觉.
二、对发生完的事情的推测
1.must have done (...一定是做过.）
He must have seen me before.以前他一定是见过我.
You must have been to Shanghai.你一定是去过上海.
2.must have been doing( 一定是正在做...)
When you called me ,I must have been listening to music so I didn't hear that.你给我打电话时,我一定是在听音乐,所以没听见电话.
She must have been playing at that time.那时,她一定是在玩哪.
情态动词可根据语气选择不同的情态动词.