VOA慢速英语:Scandal Threatens China's College Entrance Exam

1. Every June, Chinese media report on the hard work and worry of students preparing for the Gaokao.

prepare for （使）为…作准备; （使）对…有思想准备
例句：Hope for the best, but prepare for the worst. 
抱最好的愿望,作最坏的准备。 

2. Mr. Cai reportedly took money in exchange for approving admissions for students who did not take the Gaokao.

in exchange for 交换
例句：He gave me an apple in exchange for a cake. 
他给我一个苹果，换一块蛋糕。 

3. But increasingly, academics and government policymakers realized Gaokao is not really fair, Many people are in much better positions than those in rural - for example - schools.

for example 例如， 譬如
例句：For example, this year we did something different.
比方说，我们今年采取了一些与众不同的方式。