I find it hard to kill a dragon :S Solo kill him i mean i am a Nord warrior with a shield and i can't kill one, i have to run back to a city and let the guards take aggro so i can hit him or just wait them to kill him :S

Find a place where he can land on the ground to fight him, try to use pillars and rocks to avoid his fire, shout at him to stun him wack him a lot, shouting as much as you can.

http://www.youtube.com/watch?v=FjduEnelCTc

Do you have a companion?

Every time I load the game up that drags body falls from the sky and lands on me xD

Here's a tip: When you're up close in melee combat with one, shield/weapon bash them as they're about to attack or breath fire. They will stagger and you can get several good hits in quickly.

protip: use your powers... like i have one double damage + 50% dmg taken.

I have killed atleast 7 or so dragons and had 2 or 3 others play around then fly off like chickens. The ironic part is they are supposed to be the worst to kill. But I find it harder and it takes longer to put down a giant or mammoth, especially if there is more then one.

I actually found they get harder as you progress in the game. They go down easy when you have a whole lot of NPCs fighting alongside you, but I've run across several while alone in the wild and they can be really deadly. Especially if you have no cover handy - they like to make you crispy :\

I usually run around the dragon blasting a fire spell or healing and whacking them with my sword. Puts them down fairly quickly.

Thanks for the tip Next time i will shout the voice that forces him to land and then stunt him with the other shout and try to cover my self with a rock or something, i think there is a perk that reduces the spell damage like 50% when you block that spell with a shield so thats will be a boost too

I have only came across one besides the first one in the main quest but it was pretty easy especially when it had 1/4 health left a mammoth started hitting it too.