一、现在完成进行时的基本用法 1. 现在完成进行时表示现在以前这一段时间里一直在进行的动作,这动作可能仍将继续进行下去。强调已经发生的动作正在进行或表示动作的反复如: it has been raining since last sunday. 自上周星期日以来就一直在下雨。 he's been watching television all day. 他看了一天电视了。 2. 现在完成进行时有时表示根据直接或间接的证据得出的结论。如: she is very tired. she's been typing letters all day. 她很累了,她整天都在打信件。 her eyes are red. she has been crying. 她眼睛红了,她一直在哭。