One of the most exciting things about reading is the exclamation mark.
The other day, I was reading a book to a couple of kids in a kindergarten class. When I got to a sentence with an exclamation mark, I stopped and pointed it out.
I told them that whenever they see one, they're to say the sentence in a really excited voice.
We practiced the sentence in a normal voice, and an excited voice. They caught on right away.
Now when they're reading aloud, the sentences with exclamation marks (and there are a lot of them in children's books) are going to sound really exciting! And so they should.
This is a really fun thing to teach your child, and it will boost her out-loud reading from monotone to interesting in about five seconds. And that will make reading more exciting for her.