请看这道题，你知道它的考点是什么吗？
This is your work. In _________ case are you to leave your post.
A. any B. this C. which D. no
答案选D，注意 in no case 后用了倒装语序 are you to leave your post。按英语习惯，具有否定意义的词置于句首时，句子用倒装句式。又如：
(1) _________ did he know the police were after him.
A. So B. Even C. Little D. How
(2) At _________ time should you place your personal interest first.
A. that B. one C. no D. what
(3) In _________ way can we allow this to continue.
A. this B. either C. no D. a
(4) By _________ means should we do our work like that.
A. every B. all C. no D. those
(5) _________ only did I know her, but I was her best friend.
A. If B. Even C. Not D. Too
以上各题答案均选C，注意句子所用的倒装语序，说明句首使用了表示否定意义的词。注意以下例外：
(1) No wonder he didn’t want to go. 难怪他不想去。
(2) No doubt we will win in the end. 最后肯定是我们赢。
(3) In no time he came up to help. 他马上跑过来帮忙。
上面句(1) no wonder(难怪)置于句首，其后并未用倒装语序，原因有二：一是 no wonder 虽然含否定词，但并不含否定意义；二是 no wonder 其实是一种省略表达，它的完整形式为 it is no wonder that…，如上句可补充为It’s no wonder that he didn’t want to go. 句(2)和句(3) 的no doubt(肯定地，无疑地) 和in no time(立即，马上)置于句首，其后未用倒装语序，也是因为虽然它们含有否定词 no，但并不表示否定意义。