George was not too upset by his experience because the lady who owns the sweet shop heard about his troubles and rewarded him with a large box of chocolates.

【翻译】乔治并没有对他的经历感到太难过，因为女店主（拥有糖果店的那位女士）听说了他的遭遇，赏给他一大盒巧克力。

heard about 是听说, hear是听见对吗？

---是的。前者是间接的“听说”，后者是“直接”听到。“某人的不幸遭遇”，一般都是间接听别人说的，故本句使用hear about。

关于这两个词汇的区别，我举例对比：

I heard about the famous singer, but I didn’t hear her sing.

reward him sth 和 reward him with sth 有什么区别？

--- reward 不能跟双宾语。它跟provide 和supply 的用法类似，都是：

reward/provide/supply sb. with sth.

例如：

They have rewarded him $100.（误）

应改成： They have rewarded him with $100.