探讨全球人口增长

 1. According to the speaker, which type of the country in the following has the fastest growing rate of population?

根据演讲者所说，哪一类国家的人口增长速度是最快的？

2. Under what circumstances would bring the lower or middle income countries(which can afford a bike) to the level of the emerging¹ economies(which can afford a car) in 2050?

在什么样的情况下，到2050年那些较低或者中等收入的国家（那些大多只能买得起自行车的国家）可以变成新兴经济体(那些能够购买汽车的国家)呢?

3. From the views of the speaker，what is the fundamental² measure to keep the growth of the global population under control?

在演讲者看来，哪一种手段是最基本的能够保证全球人口在控制范围的手段？

1 emerging   

adj.正在不断出现的

参考例句：

• Two candidates are emerging as contestants for the presidency. 两位候选人最终成为总统职位竞争者。
• I saw the woman emerging out of a shop. 我看见那个妇女从商店里走出来。

2 fundamental   

adj.基本的，主要的；基本原则，基本法则

参考例句：

• The fundamental way out for agriculture lies in mechanization.农业的根本出路在于机械化。
• Fresh air is fundamental to good health.新鲜空气对健康是不可缺少的。