did和was的区别

1、did是过去式的助动词，可表示发生在过去的动作，后边加名词作宾语。如I didn't give my name because if I did I thought you might not have come. 我没有留下我的名字，因为如果我这么做的话，我想你可能就不会来了。1、was是过去式的be动词，可表示过去的某种状态，可充当跟形容词作表语，过去分词表被动。He was identified only by his uniform and personal belongings. 他的身份只是通过制服和个人财物确定了下来。I was astounded by its beauty 它的美丽震撼了我。