A senior high school English multiple-choice question

The answer is locked (the landlord must have copied it wrong)

1. If you analyze this sentence, you will be deceived by death.

In order not to be disturbed, I locked myself in the study and spent three hours (reading).

If it is understood as the structure of spending some time doing something, it is translated into:

I spent three hours locking myself in the study so as not to be disturbed.

That is to say: lock lock, this action lasted for three hours before it was locked.

Interesting, isn't it?

2. So it's just a accompanying action, "stay in the study for three hours" and still "lock in the study".

There is no problem with the adverbial. Let's examine the relationship between lock and subject I.

I locked myself in the study.

I am locked in the study.

According to the above analysis, locked is used as an adverbial in my study.