1. Choose five of your all time favorite books.
2. Take the first sentence of the first chapter and make a list in your journal.
3. Don't reveal the author or the title of the book.
4. Now everyone try and guess.
1) The big groundcar jerked to a stop centimetres from the vehicle ahead of it, and Armsman Pym, driving, swore under his breath. A Civil Campaign – Lois McMaster Bujold
2) I was following Derry Welfram at a prudent fifty paces when he stumbled, fell face down on the wet tarmac and lay still. The Edge – Dick Francis
3) It was starting to end, after what seemed most of eternity to me.
4) The trouble started the day Howard came home from school to find the Goon sitting in the kitchen. Archer’s Goon – Diana Wynne Jones
5) "So, Vaijon. Are you ready?" The War God's Own - David Weber
Some of those are easier than others. *grins*
But it's interesting to look at those lines in isolation. I always try when writing fic to make the first line memorable and to draw the reader further into the story - to find out what happens next. The majority here introduce the world of the story nicely and wet your appetite so well that I, who's read each of these books at least three times each, want to re-read them again. That's good authorship.
Edited to add correct guesses.