参考答案和解析
正确答案:
C
解析:
该段录音中描述到Smugglers’ Gulch是最难潜入美国的地方之一,该ravine(峡谷)被一面铁墙分开,被边境巡逻人员日夜看守,他们在泛光灯、直升机和地下压力传感器的帮助下追踪那些想非法潜入美国的人。接着提到一个5次试图翻越铁墙被捉的人,然而他仍在铁墙的墨西哥那边等待另一个机会。因此选项A正确。
【录音原文】
Despite its name, Smugglers’ Gulch is one of the toughest places to sneak into America. The ravine near San Diego is bisected by a steel wall and watched day and night by agents of the border patrol, who track would-be illegal immigrants with the help of floodlights, helicopters and underground pressure sensors. Rafael, a cement worker, has already been caught jumping over the fence five times. Yet he still loiters on the Mexican side of the fence, waiting for nightfall and another chance to cross.