As a result of pressing Ctrl+Enter, or clicking a blank page or paging in the Insert tab, the solution is as follows:

1. First, click the word document on the desktop and click to enter the main interface.

2. Then click the "Insert" column in the toolbar above.

3. Then click "Blank Page" in the open insert option.

4. At this point, in the page number display in the lower left corner, you can find that the number of pages has become two and a blank page has been inserted.