he's怎么读？he's not和he isn't在任何情况下都完全等同吗？

读hiz

不等同
前者有可能=has not

但初一初二一般等同，因为还没学完成时

it's的读音是/its/
ts读作ci！！！！懂了吧

读hiz
he's not可以是he has not也可以是he is not

看后面跟的是什么词性了，he's可以指he is也可以指he has，所以看后面跟的什么来判断's是什么的缩写。he isn't 也可以写成he's not，也是要看后面跟的是什么来判断。

[ hi:z ]
[hi:z not]
[hi: 'iznt ]

读/hiz/
完全不相同 he's not=he has not
he isn't=he is not