Английский. Changing the subject without using the passive.

With some transitive verbs we can change the subject of a sentence without using the passive. We don't mention or even imply an agent. Verbs that allow us to change the subject to 'the thing affected by the action' without using the passive are called 'ergative' verbs. By changing the subject of the sentence in this way, the active transitive verb becomes intransitive:

The dog opened the door.
The door opened when the dog pushed it.

This book will change your life.
Your life will change when you read this book.

The sun had dried their clothes by the time they got home.
Their clothes had dried by the time they got home.

She broke her pencil because she was pressing too hard.
Her pencil broke because she was pressing too hard.