完成时

完成时

  （1）现在完成时（have + p.p.）(动词过去分词)，动作过去发生，已经完成，对现在造成影响和后果，动作可能还会继续，可使用的时间状语为：

  already

  yet

  1.They have already arrived in Shanghai.

  2.She has played soccer for 3 hours.

  3.She hasn’t finished the homework.

  （2）过去完成时（had + p.p.），表示句中的动作发生在过去之前，即过去的过去，已经完成，对过去造成的一定的影响或后果。

  1.They had arrived in Shanghai.

  2.She had played soccer for 3 hours.

  3.They hadn’t finished the work yet.

练习

  1.He (has stoped) the car outside.

  2.She (hasn’t been) to Sichuan yet.

  3.(Had) they (planned) to stay here?