Question 1 is based on the news report you have just heard.

听力原文

        (1) [Operations at one of Australia’s largest gold mines had to be temporarily suspended on Friday after a partial wall collapse at one of the mine's dams.] The wall collapse at the Cadia Mine came just a few days after two earthquakes hit the area. The damage to the dam wall was noticed in the late afternoon on Friday, when workers found a section of the northern dam wall had collapsed into the southern dam. The dams contain waste products of mining and can contain materials which are harmful to the environment and human health. The dams are generally constructed using earth-fill, and are gradually raised over time. The company was unable to confirm whether the recent earthquakes had contributed to the dam’s wall collapse, but said it was conducting a thorough investigation. (2) [A company spokesperson said that operations at the site had been halted] while the investigation is ongoing, and that the break had posed no safety threat to workers.

1. What happened at one of Australia’s largest gold mines?（在澳大利亚一座大型金矿，发生了什么事情？）

解析：B。录音开头提到，澳大利亚一座大型金矿的矿坝发生部分墙体坍塌事故。B项内容是对录音中的a partial wall collapse的同义转述，故为正确答案。

错项排除：A项利用录音中的harmful设置干扰，但录音中没有提到金矿释放了气体，故排除。C项利用录音中的earthquakes设置干扰，但本次事故中只有部分墙体倒塌，金矿并没有被震毁，且录音中也说到并不明确此次矿坝墙体坍塌是否与地震有关，故排除C项。录音结尾提到，本次事故未对工人构成安全威胁，D项与此相悖，故排除。