听力资源简介：

race　
(n.)（竞速的）比赛

Let's have a race. The slowest person has to buy everyone ice cream.
我们来比赛，最慢的人要请大家吃冰淇淋。

treat　
(n.) 请客

You don't have to pay for dinner. It's my treat.
晚餐你不用付钱，我请客。