The noise startled her and she jumped slightly, but quickly composed herself.

A loud noise in the middle of the night startled him awake.

A noise at the front door startled me out of my thoughts.

The noise startled the two men, and they stopped fighting.

The noise startled her, but she didn't back away.

A noise startled her and she jerked around, eyes wide.

"Yes, the noise in here would startle anyone with hearing and wit."

A noise startled her, and then she knew what it was.

His mind had slipped away and the noise startled the hell out of him, if anybody really wanted to know the truth.

A sudden noise from the door startled him into motionless silence.