In the endless falling,Alice thought of her knowledge which she wanted to show off,imagine the scene when she enter a ridiculous world and so on,but never felt arraid.She has shinny personality,I think.
Thinking aloud may be a kind of normal behaviour of a kid when she is afraid.And this act could function by reducing fear.What's more, the image of a brave girl is sketched in this paragraph for Alice doesn't turn pale with fright while dropping continueously.