was的读音是：英[wɒz] ，美[wɑ:z]，是be动词，单数am和is的过去式，也可以做连系动词。 was有几种用法:

1，是，is的过去式。

2，是用于过去进行时单数，公式是：was doing sth. 注意：用虚拟语气时，绝对的不能用was，所有的人和事在虚拟语气中统统地用were。 例句： 1，I knew right away she was dead. 我马上就知道她死了。 2，I was astounded by its beauty. 它的美丽震撼了我。

3，I knew him when he was a little boy. 他还是个小男孩的时候我就认识他了。

4，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。

5，She was addicted to barbiturates. 她对巴比妥酸盐产生了依赖性。

6，He was already late for his appointment. 他约会已经晚了。