倒装So sudden (was the attack) that the ememy had no time.

题目

倒装So sudden (was the attack) that the ememy had no time.
为什么不可以用 did the attack so提前不是要部分倒装吗?was 提前了不是完全倒装了?

答案

我为你比较一下,这样你会清楚一些.
1 The attack was so sudden that the ememy had no time.
主句的动词是was,在变成倒装句时不能写成------did -- - be.所以只能是was提前：
So sudden WAS the attack that the ememy had no time.
2 The attack CAME so suddenly that the ememy had no time.
主句的动词是came,在变成倒装句时必须写成------did- -- -come,就成了半倒装(==助动词+真正动词)：
So suddenly did the attack come that the ememy had no time.
现在,你明白了吗?