分数/百分数+ of the population 单复数谓语都正确:

OXFORD ADVANCED LEARNER'S DICTIONARY：2000/2005/2010


One third of the world's population consumes/ consume two thirds of the world's resources.


What percentage of the population is/are overweight?

What per cent of the population is/are overweight?


很多中国老师在出题目时只允许考生选择复数谓语, 殊不知是自己出题不严密啦。而且在美国英语里分数/百分数+ of the population 做主语时通常只使用单数谓语。

了解了   就不知是不是完全正确