1
                           general:: 
                            Phrase(s): wake someone or an animal up 
to cause someone or an animal to awaken.  •  Please don’t wake me up until noon.  •  Wake up your brother at noon., Phrase(s): wake up 
to awaken; to become alert.  •  Wake up! We have to get on the road.  •  It’s time to wake up!, Phrase(s): wake someone up (to something) 
to cause someone to become alert and pay attention. (Does not refer to some one actually asleep.)  •  We tried to wake them up to the dangers.  •  Try to wake up the students to their responsibilities.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs