It has nothing to do with continuous mode. It has to do with your lack if knowledge. Just buying an amazing camera doesn't make it shoot perfect pictures. You have to give it what it needs or it does the exact same thing as a cheap point and shoot.
You have just learned the first lesson everyone who buys a camera thinking it will make amazing photos.
Soooooo... now its time to get an education on photography or sell it and go back to a point and shoot. I'm assuming you want to learn and not sell the camera.
I am on my phone right now, but when I hit home in a bit I will get you to some tutorials and information. In the meantime hopefully Keith will pop in and give you his list of tutorials.
You can search here for my name and metering tutorial. I know I have posted it in several posts. That I'd the first thing you need to understand whether you use the camera in auto or any other mode.
Then you'll need to understand ISO, Aperture and Shutter Speed. Especially Shutter Speed where sports are concerned.
If you happen to have to shoot sports in the next hour: put the camera in TV (shutter priority) mode, set it to auto ISO, dial in a shutter speed of1/500 and shoot.