1. 정신이 번쩍 들다
=> I woke up suddenly.
=> I was roused.
=> I was startled to consciousness.
=> I was startled awake. *이 상황에는 가장 적절한 표현입니다

2. 가짜 꽃, 조화
fake flowers, artificial flowers
*둘 다 가능합니다