many thanks for your help. I am going to clear my question.
As far as I know we can create many pages on the wordpress dashboard–> pages–>Add new page
I want to use three of my pages on the home-page of the wordpress website.
They are put there row by row from the first to third, ordered like the sketch described below.
header
graphene slider
page-1
page-2
page-3
footer
I hope my question is clear now.