1) so… that 句型中的so 位于句首时,需倒装。
例句:
So frightened was he that he did not dare to move an inch.
2)在某些表示祝愿的句型中。
例句:
May you all be happy.
3)在虚拟语气条件句中从句谓语动词有were, had, should等词,可将if 省略,把 were, had, should 移到主语之前,采取部分倒装。
例句:
Were I you, I would try it again.
例题:
1. Not until the early years of the 19th century______ what heat is
A. man did know;B. man knew;
C. didn't man know;D. did man know
答案:D。
解析:否定词Not在句首,要求用部分倒装的句子结构。
2. Not until I began to work ______ how much time I had wasted.
A. didn't I realize;B. did I realize;
C. I didn't realize;D. I realize;
答案:B。
3. -Do you know Tom bought a new car?
-I don't know, ______.
A. nor don't I care;B. nor do I care;
C. I don't care neither;D. I don't care also;
答案:B。
解析:句中的nor引出部分倒装结构,表示"也不"。由 so, neither, nor引导的倒装句,表示前一情况的重复出现。其中, so用于肯定句, 而 neither, nor 用在否定句中。