Understanding the Modal Adverb "莫非"

The Chinese modal adverb "莫非" (mò fēi) is used to express a sense of doubt or speculation, often translated as "could it be that" or "is it possible that" in English. It introduces a rhetorical question that implies uncertainty about a situation or event.

In the examples provided:

1. 她今天没来学校，莫非出了什么事？
   (She didn't come to school today; could it be that something happened?)
   Here, "莫非" suggests that the speaker is speculating about the reason for her absence, indicating concern or curiosity.

2. 你平时不认真学习，莫非要等到期末考试了才开始紧张吗？
   (You usually don't study seriously; is it possible that you will only start to feel anxious when the final exam comes?)
   In this case, "莫非" emphasizes the speaker's disbelief or surprise at the idea that the listener would wait until the last moment to prepare.

Overall, "莫非" is a useful expression for conveying doubt or raising questions about a situation, often prompting the listener to consider the implications of the statement.