You have also probably noticed that even if you move the intended receiver back and forth (and even out of sight) the ball will still get to him (unless, of course, intercepted by the opponent). But there is another trick: instead of throwing the ball with the pass button, press the "through ball" button (keyboard "W" as default). The ball will surpass the intended receiver and land in the open space ahead of him. If you combine this "through" throw with the receiver running forward, you would probably have a good position to deliver a cross. Such a throw near the penalty area should give you a open shot on goal. To do that - try to run the receiver close to the front line of the penalty area and throw the ball to him. If your opponent is not smart enough to guard the area and not the receiver (by the way, computer NEVER does that) you will have a good look – and a chance for a quick shot.
Practice this trick. It is also very useful tool for throw-ins near the goal line, as they can be delivered right in front of goal.