have/ had和has/ have done的区别是什么？

Question

如题所述

Answer 1

1、一个是被动语态，一个不是。

Have/Has been done是完成时态的被动语态

例如：the clothes have been washed already.衣服已经被洗了。

2、Have/Has done单纯的完成时态

例如：I have washed the clothes already.我已经把衣服洗了。

扩展资料

1、“情态动词＋have done”结构是高考重要考点，也是较难掌握的语法项目之一。

考点之一：在虚拟条件句中，如果表示与过去事实相反的情况，从句中用过去完成时，而主句中则用“情态动词＋现在完成时”，即：would/ could/ should/ might have done。例如：

If they had finished the work on time, they would have been praised by the manager.

2、“must+have+done”表示对过去事情的肯定推测，译成“一定做过某事”，该结构只用于肯定句。

It must have rained last night, for the ground is wet. 昨晚一定下雨了，因为地面还是湿的。

You must have been mad to speak to the servant. 你和仆人说话，一定是发疯了。