题目内容：

关于so的倒装
so引导部分倒装,应是助动词,情态动词移前,那如果谓语动词就一个be动词呢?它的倒装形式不就和倒装句式一样了?比如：So hot was the weather that we couldn't go to sleep.那还怎么区分句子是全倒还是部分倒呢?