该题需要抓住考题题干中put a drag on的意思，理解这与录音中的was driven mainly by 只是同一个意思的不同说法。录音中说the growth in unemployment was driven mainly by the agricultural and seryice sectors, 两考题中把这个意思从不同方向说成了 Agriculture and services put a drag on the employment,即前者说促成失业率增 长的原因是什么，后者说拖了就业率后腿的是什么，本质并无差异。

[重点难点]
理解英语基本词，把握同一个意思的正反不同方向的说法。

[录音原文]
South Africa's unemployment increased to 27.7 percent in the first quarter of 2017. This was the highest unemployment rate recorded since 2003. Statistics show the growth in unemployment was driven mainly by the agricultural and service sectors. The largest employment gains were recorded in manufacturing and finance. Mining also made a positive contribution in the labor market.