Какие это времена и почему именно в это время? Причина употребления

1). Jane is away on holiday. Oh, is she? Present Simple, the fact.

Where has she gone? Present Perfect, the action that started in the past and it is still connected to the present. Jane went away for her holiday and she is still there.

2). I have lost my address book. Have you seen it anywhere? Both Present Perfect, the book was put somewhere and it is still not clear if there is any possibility to find it.

3) My brother is an actor. Present Simple, the fact. He has appeared in several films. Present Perfect, a life experience.