that is why and that is because

问题描述:

that is why and that is because
that is why后面跟的是结果,译为:“那是(为什么).的原因”
例如:
Tom overslept this morning.That is why he was late for work.
汤姆今天早晨睡过头了.那是他上班迟到的原因.
that is because后面跟的是原因,译为:“那是因为.”
例如:
Tom was late for work this morning.That is because he overslept.
汤姆今天早晨上班迟到了.那是因为他睡过头了.

why 后面是接导致的结果because后接事情产生的原因