Deleted

4+4-(4/4) = 1*4+4-(4/4) = ...now I'm bored.
Still, it's something I guess.

(4+4)/(4+4) = 1
(4/4)+(4/4) = 2
(4+4+4)/4 = 3
((4-4) 4)+4 = 4
((44)+4)/4 = 5
((4+4)/4)+4 = 6
(4+4)-(4/4) = 7

4+4-4/4 = 1x4+4-4/4 = -2+4+4+4/4 = 3x4-4-4/4 = 7 xD with 4 4 4 4 4 = 7 i was having problems xD but you edit your post and now is clear and easy ... -.-

4+4-4-4=1
4+4-4+4=2
4-4-4-4=3
4+4(4)(4)=4
4+4/4+4=5
4/4/4+4=6
4-4+4(4)=7