Nikon D3100 will take pictures but they are just black. HELPPP?

I have no clue whats happening i just got a nikon d3100 today and its just taking black pictures i adjusted aperture and thats not doing anything… help
Added (1). Ok so I know how to use cameras but this has never happened to me… its an 18-55mm nikkorr AF-S DX lens

См. статью: Nikon D3100 will take pictures but they are just black. HELPPP?

What would be a good nikon lens for sporting events?

If I purchase the Nikon d3000 is the Extra lens 55-200 a good lens.

См. статью: What would be a good nikon lens for sporting events?