6. so ... that ...何时用于倒装
loudly did he speak that even the people in the next room could hear him.
A. SoB. VeryC. TooD. Much
答案选A，其余几项均有可能误选。之所以选so，一是因为so ... that ...是一固定句型，二是因为so loudly后的did he speak为部分倒装，因为按英语语法，当so ... that ...结构中的“so+形容词或副词”置于句首时，主句要用部分倒装形式。
上题的正常语序是：He spoke so loudly that even the people in the next room could hear him.又如：
So interesting is the book that all the children like it.这本书太有趣了，所有的孩子都喜欢。
So fast did he run that I couldn’t catch up with him.他跑得太快，我无法追上他。
So fast does light travel that it is difficult for us to imagine its speed. 光传播得如此之快，以至于我们无法想像它的速度。
注：在such ... that ...结构中，若such及其修饰语置于句首，主句也用部分倒装的形式。如：
Such fine weather is it that we decide to go for an outing.天气这么好，我们决定去郊游。
