I thought today was going to be really bad.

问题描述:

I thought today was going to be really bad.
本句中,was going to是什么意思,起什么作用

be going to在这里表示将要发生的事.
thought一旦用成过去式,就是过去的想法,通常和现实不符的.
句意是:我原以为今天会过得很糟.