I heard a noise.I was hear a noise yestaday.这两个句子有什么区别?

错了,应该是I（1）l heard a noise（2）l was heard a noise yestaday前者为过去式,后者为被动语态.一般一些不及物动词都没有被动语态和进行时,如表发生的几个词happen,occur,take place,break out,上升(rise),后面标有Vi的就是不及物的.hear能用于被动语态.有不懂的可以继续问.