GFCI and "normal" outlets
The "normal" outlets that lose power have been wired to the LOAD terminals (i.e. downstream) of the GFCI -- if they are in a location that requires GFCI protection, this is normal to find.

They are considered equivalent to grounded outlets for shock protection purposes as well; however, without knowing how they are actually wired, we do not know if they are actually grounded or not.