I can`t use apt for install packages directly on a RasPI

I've tried to install git using apt and I can't fetch the URLs of raspbian packages... I've tried ping http://www.google.com and it said me that doesnt know the name.

Tried to modify resolv.conf aand that kind of things, but... I can't download anything

Thanks a lot

Fixed!!, But now I have problems of "candidate to download" but i'll keep working, thanks a lot