be to 表达的含义理解？

It was to be expected that there would be a thunderstorm.

这里使用了be to, 含义是什么？如果去掉，、

说成It was expected that there would be a thunderstorm.

二者的含义区别究竟是什么？

be to do是将来时间表示法之一，你可以粗略的视其为将来时。

was expected 一般过去时

was to be expected 相当于过去将来时 would be expected.

这就是二者的区别。

曹荣禄 -

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