湛江雅思培训：雅思7Test1Reading One3

3.定位词： why...hunt in the dark

文章中对应点：A段：

Given that there is a living to be made at night, and given that alternative daytime trades are thoroughly occupied, natural selection has favoured bats that make a go of the night-hunting trade.

这个对应句理解起来比较晦涩，需要联系上下文。考试中如果一时选不出来，建议暂时放弃。