be kind to 对·····友善,修饰的是人或事物 ，不能用其他的地方；
be kind for for 后面接的东西是其对象 ,修饰的东西一般是发生的动作，而不是其他东西。
The weather was very kind to us.
天气非常宜人。
Fate was kind to me that day.
那天我很幸运。
There is good news of a kind for the Prime Minister
对总理来说也算是有个好消息。
She doesn\'t have a kind word for anyone.
她对谁都是冷言冷语。
