#no doubt位于句首时为什么不倒装#

no doubt虽然含有否定词no,但整个短语并不表示否定意义,所以当它位于句首时,其后不用倒装语序。类似的表达还有not long ago, in no time。如:

Not long ago he went to work in the south. 不久前他去南方工作了。

In no time he worked out the problem. 他立即算出了那道题。

另外,no wonder(难怪)用于位句首时,其后也不用倒装(注意no wonder为it’s no wonder之省略)。如:

No wonder he was so tired. 难怪他那么累。

No wonder you can't sleep when you eat so much. 你吃得太饱,自然睡不着。

There was such a draught, no wonder he caught a cold. 过堂风这样厉害,难怪他感冒了。