1. 如果扔这个动作的目的是给人一样东西,就用throw to
如:throw my shirt to me (把我的衬衫扔给我)
2. 如果扔这个动作的目的是将东西打到某人或某物身上,就用throw at
如:throw a stone at the car (扔石头砸车)
throw snowballs at each other (互相扔
雪球)
3. 如果要具体表明被扔的东西的运行轨迹,就要看情况使用不同的介词
如:throw the ball into a box (把球扔进箱子)
throw a stone over the river (把石头扔过河)
throw the hammer up here (把锤子扔上来)
throw the gun out and surrender (把枪扔出来,举手投降) ......