she is learning a new skill (turning the page)
which right now is more fun then the old skill reading or look at the pages
this happened with my daughter too
i just read as much as she would let me before she turned the page
after she got better at turning pages (two weeks if i remember right)
i would try to get her interested in the pictures again
after awhile turn pages wasn't so cool anymore
now she won't even turn the page unless i ask her to
she would rather me keep read